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What's New Archive

This contains release notes for releases older than three major releases.

Contents

What's New Archive

Mercurial 4.6.2 (2018-07-03)

This is a regularly-scheduled bugfix release containing following fixes:

merge: do not fill manifest of committed revision with pseudo node (issue5526)
crecord: fix line number in hunk header (issue5917)
lazymanifest: don't crash when out of memory (issue5916)
procutil: use unbuffered stdout on Windows

Mercurial 4.6.1 (2018-06-06)

This is a regularly-scheduled bugfix release that also contains security fixes.

Security Fixes

Multiple issues found in mpatch.c with a fuzzer:

OVE-20180430-0001 / CVE-2018-13348
OVE-20180430-0002 / CVE-2018-13347
OVE-20180430-0004 / CVE-2018-13346

With the following fixes:

mpatch: be more careful about parsing binary patch data (SEC)
mpatch: protect against underflow in mpatch_apply (SEC)
mpatch: ensure fragment start isn't past the end of orig (SEC)
mpatch: fix UB in int overflows in gather() (SEC)
mpatch: fix UB integer overflows in discard() (SEC)
mpatch: avoid integer overflow in mpatch_decode (SEC)
mpatch: avoid integer overflow in combine() (SEC)

No exploits are known at the time, however, it is highly recommended that all users upgrade.

Bug Fixes

Also included in this release are the following,

zstandard: pull in bug fixes from upstream 0.9.1 (issue5884)
bundle2: fix old clients from reading newer format (issue5872)
bdiff: fix xdiff long/int64 conversion (issue5885)
push: continue without locking on lock failure other than EEXIST (issue5882)
lfs: fix crash in command server (issue5902)
hghave: fix deadlock in test runner
rebase: fix error when computing obsoletenotrebased (issue5907)
rebase: prioritize indicating an interrupted rebase over update (issue5838)
revset: pass in lookup function to matchany() (issue5879)

Mercurial 4.6 (2018-05-06)

Full release notes are available. This is a regularly-scheduled quarterly feature release.

New Features

pullbundles

Pullbundles allow the server to answer client requests using pre-built bundles. This is different from the existing clonebundle feature:

pullbundles can be used for both the initial clone and later pull operations
pullbundles can be used incrementally, i.e. to cover the changes up to the start of the current month as one bundle and the remaining changes as second bundle
the bundle is transferred inline as part of the existing connection without a secondary server

Pullbundles are only used for clients running Mercurial 4.6 as well.

push

If 'server.streamunbundle' option is enabled, the server will directly apply the changes send by the changes. This avoids potentially large temporary files on the server side. It can also prevent concurrent pushes.

notify extension

The 'maxdiffstat' option can be used to truncate long file lists similar to 'maxdiff' for the patch part of the email.

hgweb

hgweb now shows date and user for operations that resulted in obsolete commit(s). For unstable commits, it shows the exact reason why they are considered unstable.

Server: header is now configurable using web.server-header option.

templates

A new template keyword 'reporoot' which shows the root directory of the current repository. A new template function 'mailmap' which maps author fields based on values in a .mailmap file.

Other notable features

revset: parse error now shows a hint where the error occurred
templates: parse error now shows a hint where the error occured
forget: new '--dry-run' and '--interactive' flags
copyfile: preserve stat info (mtime, etc.) when doing copies/renames
bundle2 format is documented and can be found using 'hg help internals.bundle2'

Backwards Compatibility Changes

Support for connecting to Mercurial servers older than 0.9.1 has been removed.
Working-directory commands now respect "-X PATTERN" no matter if PATTERN matches explicitly-specified FILEs. For example, "hg add foo -X foo" no longer add the file "foo".
Support for the experimental manifestv2 format has been removed, as it was never completed and failed to meet expectations.
'{' in output filename passed to archive/cat/export is taken as a start of a template expression.
The HTTP wire protocol server no longer accepts the "cmd" argument to control which command to run via HTTP POST bodies. The "cmd" argument must be specified on the URL query string.
Hgweb no longer reads form data in POST requests from multipart/form-data and application/x-www-form-urlencoded requests. Arguments should be specified as URL path components or in the query string in the URL instead.
Query string shorts in hgweb like "?cs=@" have been removed. Use URLs of the form "/:cmd" instead.
The HTTP client no longer accepts text/plain and application/hg-changegroup Content-Type values as a valid Mercurial command response. These should only be encountered on pre 1.0 Mercurial servers.

Performance Improvements

'hg manifest --all' is likely slower due to changing its implementation to respect storage interface boundaries. If you are impacted by this regression in a meaningful way, please make noise on the development mailing list and it can be dealt with.
'hg diff' is much faster for larger repositories. 40% improvements have been reported. Other operations using diffs like hgweb also benefit.

Bug Fixes

grep: fixes erroneous output of grep in forward order (issue3885)
dirstate: drop explicit files that shouldn't match (BC) (issue4679)
procutil: rewrite popen() as a subprocess.Popen wrapper (issue4746) (API)
bookmarks: test for exchanging long bookmark names (issue5165)
templater: drop symbols which should be overridden by new 'ctx' (issue5612)
clone: updates the help text for hg clone -{r,b} (issue5654)
bundle: updates the help text for hg bundle (issue5744)
histedit: make histedit's commands accept revsets (issue5746)
releasenotes: replace abort with warning while parsing (issue5775)
context: skip path conflicts by default when clearing unknown file (issue5776)
templatekw: switch most of showlist template keywords to new API (issue5779)
rebase: do not consider extincts for divergence detection (issue5782)
revert: use an exact matcher in interactive diff selection (issue5789)
subrepo: don't attempt to share remote sources (issue5793)
lfs: respect narrowmatcher when testing to add 'lfs' requirement (issue5794)
showconfig: allow multiple section.name selectors (issue5797)
annotate: do not poorly split lines at CR (issue5798)
convert: avoid closing ui.fout in subversion code (issue5807)
setdiscovery: back out changeset 5cfdf6137af8 (issue5809)
fsmonitor: layer on another hack in bser.c for os.stat() compat (issue5811)
notify: access the initial revision on an unfiltered repository (issue5821)
rebase: fix issue 5494 also with --collapse
date: fixed a bug in parsing months like 'Feb 2018', 'Apr 2018'
diffhelper: rename module to avoid conflicts with ancient C module (issue5846)
infinitepush: ensure fileindex bookmarks use '/' separators (issue5840)
import: fix crash on --exact check of empty commit (issue5702)
hgweb: reuse body file object when hgwebdir calls hgweb (issue5851)
debugcolor: fix crash by empty styles (issue5856)
hgweb: discard Content-Type header for 304 responses (issue5844)
hgweb: allow Content-Security-Policy header on 304 responses (issue5844)
paper: don't register click handlers with inline javascript (issue5812)
httppeer: detect redirect to URL without query string (issue5860)
filelog: don't crash on invalid copy metadata (issue5748)

New experimental features

Each release there are lot of new features added which are hidden under the EXPERIMENTAL tag as the behavior may change in future or the feature is not complete yet. The experimental features added in this cycle are:

narrow extension

Allows to create clones which fetch history data for only a subset of files. This experimental extension is now distributed with Mercurial.

remotenames extension

Shows remotebookmarks and remotebranches in the UI. This experimental extension is now distributed with Mercurial.

infinitepush extension

Allows to store some pushes in a remote blob store on the server and to serve commits from remote blob store. The revisions are stored on disk or in everstore, the metadata are stored in sql or on disk. This experimental extension is now distributed with Mercurial.

fix extension

Allows to rewrite file content in changesets or working copy. For example, automatically applying formatting fixes to modified lines of code. This experimental extension is now distributed with Mercurial.

lfs extension

An alternative to the largefiles extension, which uses the git-lfs protocol. This experimental extension is now distributed with Mercurial.

API Changes

Content from mercurial.hgweb.protocol has been moved to mercurial.wireprotoserver.
Content from mercurial.sshserver has been moved into mercurial.wireprotoserver.
sshserver no longers looks for wire protocol command handlers in methods named do_<command>. Use @wireproto.wireprotocommand to declare wire protocol command handler functions.
Log-related utility functions has been renamed as follows:
- - cmdutil.loglimit -> logcmdutil.getlimit
  - cmdutil.diffordiffstat -> logcmdutil.diffordiffstat
  - cmdutil._changesetlabels -> logcmdutil.changesetlabels
  - cmdutil.changeset_printer -> logcmdutil.changesetprinter - cmdutil.jsonchangeset = logcmdutil.jsonchangeset
  - cmdutil.changeset_templater -> logcmdutil.changesettemplater
  - cmdutil.logtemplatespec -> logcmdutil.templatespec
  - cmdutil.makelogtemplater -> logcmdutil.maketemplater
  - cmdutil.show_changeset -> logcmdutil.changesetdisplayer
  - cmdutil.getlogrevs -> logcmdutil.getrevs
  - cmdutil.getloglinerangerevs -> logcmdutil.getlinerangerevs
  - cmdutil.displaygraph -> logcmdutil.displaygraph
  - cmdutil.graphlog -> logcmdutil.graphlog
  - cmdutil.checkunsupportedgraphflags -> logcmdutil.checkunsupportedgraphflags
  - cmdutil.graphrevs -> logcmdutil.graphrevs
  - cmdutil._makenofollowlogfilematcher -> logcmdutil._makenofollowfilematcher
The following deprecated methods have been removed from context, with replacements:
- - unstable() -> orphan()
  - bumped() -> phasedivergent()
  - divergent() -> contentdivergent()
  - troubled() -> isunstable()
  - troubles() -> instabilities()
The following deprecated methods have been removed from obsolete, with replacements:
- - _addprecursors() -> _addpredecessors()
  - obsstore.precursors -> obsstore.predecessors
  - allprecursors() -> obsutil.allprecursors()
  - allsuccessors() -> obsutil.allsuccessors()
  - marker() -> obsutil.marker
  - getmarkers() -> obsutil.getmarkers()
  - exclusivemarkers() -> obsutil.exclusivemarkers()
  - foreground() -> obsutil.foreground()
  - successorssets() -> obsutil.successorsset()
  - unstable() -> orphan()
  - bumped() -> phasedivergent()
  - divergent() -> contentdivergent()
The following deprecated methods have been removed from obsutil: marker.precnode() and allprecursors(). Use marker.prednode() and allpredecessors() instead.
beginparentchange() and endparentchange() have been replaced by the parentchange context manager.
The deprecated localrepo.walk() has been removed, and replaced by repo[node].walk().
The following deprecated methods have been removed from bookmarks: __setitem__(), __delitem__(), update(), and recordchange(). Use bookmarks.applychanges() instead.
The cmdutil._revertprefetch() hook point for prefetching stored files has been replaced by the command agnostic cmdutil._prefetchfiles(). The new function takes a list of files, instead of a list of lists of files.
sshpeer.sshpeer.__init__ now receives arguments describing an existing connection instead of creating a connection itself.
sshpeer.sshpeer renamed to sshpeer.sshv1peer.
wireproto.pushres and wireproto.pusherr now explicitly track stdio output.
redirect() and restore() have been removed from the wire protocol handler interface. Use mayberedirectstdio() instead.
The _client() method of the wire protocol handler interface has been renamed to client().
Wire protocol command handlers now return a wireprototypes.bytesresponse instead of a raw bytes instance. Protocol handlers will continue handling bytes instances. However, any extensions wrapping wire protocol commands will need to handle the new type.
SSH protocol handler now advertises its name internally as "ssh-v1" instead of "ssh."
File prefetching is now handled by registering a callback with scmutil.fileprefetchhooks.
HTTP protocol handlers now advertises its internal name as "http-v1" instead of "http".
context.basectx no longer implements __int__. Context instances will no longer cast to ints. Consumers should call ctx.rev() instead.
templatekw.showdict() and showlist() are deprecated in favor of new (context, mapping) API. Switch the keyword function to new API and use templatekw.compatdict() and compatlist() instead.
hgweb_mod.perms and wireproto.permissions have been removed. Wire protocol commands should declare their required permissions in the @wireprotocommand decorator.
The WSGI request object no longer exposes a form attribute containing parsed query string data. Use the qsparams attribute instead.
hgweb.hgweb_mod.permhooks no longer take a wsgirequest instance as an argument.
hgweb @webcommand functions must use the new response object passed in via "web.res" to initiate sending of a response. The hgweb WSGI application will no longer start sending the response automatically.
Various helper functions in hgweb.webutil no longer accept a templater instance. Access the templater through the "web" argument instead.
Various functions in hgweb.webutil now take a modern request object instead of "wsgirequest".
@webcommand functions now only receive a single argument. The request and templater instances can be accessed via the "req" and "templater" attributes of the first argument. Note that the request object is different from previous Mercurial releases and consumers of the previous "req" 2nd argument will need updating to use the new API.
The old "wsgirequest" class for handling everything WSGI in hgweb has been replaced by separate request and response types. Various high-level functions in the hgweb WSGI applications now receive these new types as arguments instead of the old "wsgirequest" type.
The render(mapping) method of the templater has been renamed to renderdefault(mapping).
httppeer.httppeer.__init__ now takes additional arguments. Instances should be obtained by calling httppeer.instance() or httppeer.makepeer() instead.
The templater is no longer callable. Use templater.generate(t, mapping) instead of templater(t, **pycompat.strkwargs(mapping)).
templatekw._showlist() is deprecated in favor of templateutil._showcompatlist(), which takes context in place of templ.
Several generic string helper functions have been moved to utils.stringutil module.
The util.Abort alias has been removed. Use error.Abort.
merge.update() and merge.applyupdates() now return a class with named attributes instead of a tuple. Switch consumers to access elements by name instead of by offset.
Utility functions related to process/executable management have been moved to utils.procutil module.
localrepo.localrepository.featuresetupfuncs has been renamed to localrepo.featuresetupfuncs.
localrepo.localrepository.filterpats was renamed to localrepo.localrepository._filterpats.
Template filters should declare input data type and/or catch AttributeError, ValueError, TypeError, etc. as needed. See the doc of "registrar.templatefilters" for details.
"wireproto" module no longer re-exports various types used to define responses to wire protocol commands. Access these types from the "wireprototypes" module.
filelog.parsemeta() and filelog.packmeta() have been moved to the revlog module.
procutil.popen() no longer supports text mode I/O.
hook.hook() and hook.runhooks() may return a negative integer to denote that the process was killed by signal.
filelog.filelog is now a standalone class and doesn't inherit from revlog. Instead, it wraps a revlog instance at self._revlog. This change was made in an attempt to formalize storage APIs and prevent revlog implementation details leaking through to callers.
The fp argument is removed from cmdutil.export(). Use cmdutil.exportfile() instead.
cmdutil.export() takes a formatter as an argument.
patch.extract() is now a context manager. Callers no longer have to worry about deleting the temporary file it creates, as the file is tied to the lifetime of the context manager.
The wire protocol peer's iterbatch() for bulk executing commands has been removed. Use peer.commandexecutor() instead.

Mercurial 4.5.3 (2018-04-04)

This is a regularly-scheduled bugfix release.

Bug Fixes

rebase: on abort, don't strip commits that didn't need to be rebased (issue5822)
hgweb: garbage collect on every request
amend: abort if unresolved merge conflicts found (issue5805)

Mercurial 4.5.1 / 4.5.2 (2018-03-06)

(4.5.2 was released immediately after 4.5.1 to fix a release oversight.)

This is a regularly-scheduled bugfix release.

Security Fixes

All versions of Mercurial prior to 4.5.2 have vulnerabilities in the HTTP server that allow permissions bypass to:

Perform writes on repositories that should be read-only
Perform reads on repositories that shouldn't allow read access

CVE-2018-1000132 has been assigned these vulnerabilities.

The nature of the vulnerabilities is:

Wire protocol commands that didn't explicitly declare their permissions had no permissions checking done. The web.{allow-pull, allow-push, deny_read, etc} config options governing access control were never consulted when running these commands. This allowed permissions bypass for impacted commands.
The batch wire protocol command did not list its permission requirements nor did it enforce permissions on individual sub-commands.

The implication of these vulnerabilities is that no permissions checking was performed on commands and this could lead to accessing data that web.* config options were supposed to prevent access to or modifying data (via wire protocol commands that can mutate data) without authorization. A Mercurial HTTP server in its default configuration is supposed to be read-only. However, a well-crafted batch command could invoke commands that perform writes.

The batch write permissions bypass has been present since Mercurial 1.9. The flaw of not checking permissions for wire protocol commands that don't declare their needed permissions has been present since Mercurial 1.0.

Assuming you are running a server without any custom commands provided by extensions, your exposure is unauthorized data access (if relying on the web.* config options to limit access) and unauthorized data mutation via the batch command.

Server operators can detect unauthorized use of the batch command by looking for requests to URLs of the form repo?cmd=batch with arguments containing pushkey or unbundle. This may produce false positives. A more comprehensive check would decode the argument string and verify that pushkey or unbundle are command names (not values). The arguments specified via x-hgarg-<N> request headers can span multiple headers. So advanced attackers could hide the vulnerability by splitting a pushkey or unbundle string across multiple headers. So the only reliable way to detect if this vulnerability is being exploited is to decode these headers like Mercurial does. The format for specifying arguments is documented at https://www.mercurial-scm.org/repo/hg/file/4.5/mercurial/help/internals/wireprotocol.txt#l26. Python code for decoding headers is at https://www.mercurial-scm.org/repo/hg/file/4.5/mercurial/hgweb/protocol.py#l70.

Mercurial 4.5.2 fixes these vulnerabilities by:

Performing permissions checking on all wire protocol commands, not just commands that list their permissions.
Checking permissions on sub-commands issued to the batch command.

Wire protocol commands not declaring wire protocol permissions will be assumed to be read-write commands and a server in its default configuration (which only allows read-only access), will refuse to execute these commands.

For package maintainers needing to backport the fixes, the relevant changesets from 4.5.2 are 2c647da851ed::2ecb0fc535b1. These can be viewed online at e.g. https://www.mercurial-scm.org/repo/hg/rev/2ecb0fc535b1. The author of these commits has backports to 4.4 and 4.3 on a personal fork at https://hg.mozilla.org/users/gszorc_mozilla.com/hg. The backports for 4.4 are a4843835c835::7cf827e5f8af and for 4.3 are db527ae12671::86f9a022ccb8. To obtain these changesets, run e.g. hg pull -r 7cf827e5f8af https://hg.mozilla.org/users/gszorc_mozilla.com/hg.

Backwards Compatibility Changes

The "batch" wire protocol command now enforces permissions of each invoked sub-command. Wire protocol commands must define their operation type or the "batch" command will assume they can write data and will prevent their execution on HTTP servers unless the HTTP request method is POST, the server is configured to allow pushes, and the (possibly authenticated) HTTP user is authorized to perform a push.
Wire protocol commands not defining their operation type in "wireproto.PERMISSIONS" are now assumed to be used for "push" operations and access control to run those commands is now enforced accordingly.

Bug Fixes

fileset: don't abort when running copied() on a revision with a removed file
date: fix parsing months
setup: only allow Python 3 from a source checkout (issue5804)
annotate: do not poorly split lines at CR (issue5798)
subrepo: don't attempt to share remote sources (issue5793)
subrepo: activate clone pooling to enable sharing with remote URLs
changegroup: do not delta lfs revisions
revlog: do not use delta for lfs revisions
revlog: resolve lfs rawtext to vanilla rawtext before applying delta

Mercurial 4.5 (2018-02-01)

New Features

revert --interactive

The revert command now accepts the flag --interactive to allow reverting only some of the changes to the specified files.

Accessing hidden changesets

Set config option 'experimental.directaccess = True' to access hidden changesets from read only commands.

githelp extension

The githelp extension provides the hg githelp command. This command attempts to convert a git command to its Mercurial equivalent. The extension can be useful to Git users new to Mercurial.

Largefiles changes

largefiles: add a 'debuglfput' command to put largefile into the store
largefiles: add support for 'largefiles://' url scheme
largefiles: allow to run 'debugupgraderepo' on repo with largefiles
largefiles: convert EOL of hgrc before appending to bytes IO
largefiles: explicitly set the source and sink types to 'hg' for lfconvert
largefiles: modernize how capabilities are added to the wire protocol

hgweb changes

hgweb now shows more information about commits: phase (if it's not public), obsolescence status (with a short explanation and links to the successors) and instabilities (e.g. orphan, phase-divergent or content-divergent).

Client-side graph code has been simplified by delegating more work to the backend, so /graph page is now more in sync with /log page, visually and feature-wise. Unfortunately, this code change means that 3rd-party themes for 4.5+ are required to have graphentry.tmpl template available (copy it from the base theme if you don't use %include and then reference it in map file) and render entries in graph.tmpl -- look at one of the core themes to see what it needs to look like. JS functions that create graph vertices and edges are now available in Graph.prototype, making it possible to call the original functions from custom theme-specific functions if needed.

Graph now shows different symbols for normal, branch-closing, obsolete and unstable commits, and marks currently checked out commit with a circle around its graph node.

There's also now json-graph API endpoint that can be used for rendering commit graph in 3rd-party applications.

Other Changes

When interactive revert is run against a revision other than the working directory parent, the diff shown is the diff to apply to the working directory, rather than the diff to discard from the working copy. This is in line with related user experiences with 'git' and appears to be less confusing with 'ui.interface=curses'.
Let 'hg rebase' avoid content-divergence by skipping obsolete changesets (and their descendants) when they are present in the rebase set along with one of their successors but none of their successors is in destination.
A new experimental config flag, 'rebase.experimental.inmemory', makes rebase perform an in-memory merge instead of doing it on-disk in the working copy.
The HGPLAINEXCEPT environment variable can now include color to allow automatic output colorization in otherwise automated environments.
A new unamend command in uncommit extension which undoes the effect of the amend command by creating a new changeset which was there before amend and moving the changes that were amended to the working directory.
A '--abort' flag to merge command to abort the ongoing merge.
An experimental flag '--rev' to 'hg branch' which can be used to change branch of changesets.
bundle2 read I/O significantly improved
bundle2 memory use significantly reduced during read
clonebundle: it is now possible to serve the clonebundle using a git-lfs compatible server.
templatefilters: add slashpath() to convert path separator to slash (issue5572)
A new experimental config flag, 'inline-color-diff', adds within-line color diff capacity
histedit: add support to output nodechanges using formatter to help with editor integrations

Backwards Compatibility Changes

log --follow-first -rREV, which is deprecated, now follows the first parent of merge revisions from the specified REV just like log --follow -rREV.
log --follow -rREV FILE.. now follows file history across copies and renames.
transaction: register summary callbacks only at start of transaction
hgweb's graph view no longer supports browsers that lack <canvas> support
hgweb: only include graph-related data in jsdata variable on /graph pages
graphlog: add another graph node type, unstable, using character *
remove: print message for each file in verbose mode only while using '-A'

Bug Fixes

Bookmark, whose name is longer than 255, can again be exchanged again between 4.4+ client and servers (issue5165)
The convert extension works with bzr < 2.6.0 again (issue5733)
Mercurial will now attempt to use hardlinks on NTFS on Windows (issue4580)
The revset x^:: is now correctly parsed as (x^):: instead of being an error (issue5764)
Setting the diff.noprefix configuration option no longer breaks the --stat flag on hg diff (issue5759)
hg outgoing now honors :pushurl paths from hgrc (issue5365)
log: translate column labels at once (issue5750)
patch: improve heuristics to not take the word diff as header (issue1879)
templater: look up symbols/resources as if they were separated (issue5699)
http and ssh: support for emitting extra debug logs about requests as they happen

API Changes

bundlerepo.bundlerepository.bundle and bundlerepo.bundlerepository.bundlefile are now prefixed with an underscore.
Rename bundlerepo.bundlerepository.bundlefilespos to _cgfilespos.
dirstate no longer provides a 'dirs()' method. To test for the existence of a directory in the dirstate, use 'dirstate.hasdir(dirname)'.
mapping does not contain all template resources. use context.resource() in template functions.
text=False|True option is dropped from the vfs interface because of Python 3 compatibility issue. Use util.tonativeeol/fromnativeeol() to convert EOL manually.
wireproto.streamres.__init__ no longer accepts a reader argument. Use the gen argument instead.
exchange.getbundlechunks() now returns a 2-tuple instead of just an iterator.
bundle2 parts are no longer seekable by default
memfilectx: the changectx argument is now mandatory in constructor

Mercurial 4.4.2 (2017-12-01)

This is a regularly-scheduled bugfix release.

Notable changes

Stricter command option parsing

Mercurial can now optionally parse "early" options (-R/--repository, --cwd, --config, --debugger, and --profile) more strictly, for more secure integration with tools that invoke 'hg' commands. Setting HGPLAIN=+strictflags will parse these options more strictly, which prevents them from being injected as arguments to other flags.

Bug fixes

'hg amend' now correctly handles deleted and removed files, as well as subrepos. (issue5732, issue5677)
largefiles now correctly handles dropped standin files when updating largefiles.
Fixed an issue with deleting symlinks to directories when ui.origbackuppath is set. (issue5731)

Performance improvements

Improved performance in path conflict checking introduced in Mercurial 4.4. (issue5716)

Mercurial 4.4.1 (2017-11-07)

Notable changes

Git and Subversion subrepos have been disabled by default to mitigate a potential security risk if files overlapping with a subrepo managed to be committed to a repository.
Subrepos are now more paranoid about symlink traversal.
The share extension handles drive letters on Windows better.

It is possible that a specially malformed repository can cause Git subrepositories to run arbitrary code in the form of a .git/hooks/post-update script checked in to the repository in Mercurial 4.4 and earlier. Typical use of Mercurial prevents construction of such repositories, but they can be created programmatically.

Mercurial 4.4 (2017-11-01)

Notable changes

Control whitespace settings for annotation on hgweb

/annotate URLs on hgweb now accept query string arguments to influence how whitespace changes impact results.

The arguments "ignorews," "ignorewsamount," "ignorewseol," and "ignoreblanklines" now have the same meaning as their [annotate] config section counterparts. Any provided setting overrides the server default.

HTML checkboxes have been added to the paper and gitweb themes to expose current whitespace settings and to easily modify the current view.

Fast, heuristic copy-tracing

A new fast heuristic algorithm for copytracing which assumes that the files moves are either:

renames in the same directory
moves in other directories with same names

You can use this algorithm by setting 'experimental.copytrace=heuristics'. This setting performs full copytracing if both source and destination branches contains non-public changesets only.

Other changes

Estimated time is more accurate with non-linear progress

"hg status -v" can now show unfinished state. For example, when in an unfinished rebase state, "hg status -v" might show:

 # The repository is in an unfinished *rebase* state.
 # No unresolved merge conflicts.
 # To continue:                hg rebase --continue
 # To abort:                   hg rebase --abort

Added '--ignore-space-at-eol' diff option to ignore whitespace differences at line endings.
show: use consistent node length in views
show: decrease minimum displayed hash length from 5 to 4
A new uncommit extension which provides 'hg uncommit' using which one can uncommit part or all of the changeset. This command undoes the effect of a local commit, returning the affected files to their uncommitted state.
'hg clone --uncompressed' uses clone bundles when possible
'hg annotate --skip' now prints a '*' on lines with skipped revisions
New 'commands.update.check' feature to adjust constraints on when 'hg update' will allow updates with a dirty working copy.
Add an experimental -L/--line-range FILE,FROMLINE:TOLINE option to 'hg log' command to follow the history of files by line range. In combination with -p/--patch option, only diff hunks within specified line range will be displayed. Feedback, especially on UX aspects, is welcome.
Print warning when fsmonitor isn't being used on a large repository

Backwards Compatibility Changes

The config option for copytrace 'experimental.disablecopytrace' is now replaced with 'experimental.copytrace' which defaults to 'on'. If you need to turn off copytracing, add '[experimental] copytrace = off' to your config.
'hg clone --stream' should now be used instead of --uncompressed. --uncompressed is marked as deprecated and is an alias for --stream. There is no schedule for elimination of --uncompressed.
The 'experimental.updatecheck' name for the new 'commands.update.check' feature is now deprecated, and will be removed after this release.
Mercurial subrepositories are now shared instead of cloned when the parent repository is shared. This prevents dangling subrepository references in the share source. Previously shared repositories with cloned subrepositories will continue to function unchanged.
Push no longer triggers a pushkey hook when updating phases. Use the new 'txnclose-phase' and 'txnclose-phase' hooks instead. (Applies when both server and client use version 4.4 or above).

Bug Fixes

Core rebase algorithm has been rewritten to be more robust (issue5578, issue5630)
Creating a share of a repository with a Mercurial subrepository will now share the subrepository (issue5675)

Performance Improvements

improved performance when many aliases are defined

API Changes

remove peer.batch()

Replace with peer.iterbatch().

Other Changes

@peer.batchable can no longer emit local values
@peer.batchable functions must now yield exactly 2 values
Rename attributes on sshpeer to reflect peer API
peer.peerrepository has been removed. Use repository.peer abstract base class to represent a peer repository.
revset.stringset() now takes 'order' as the last argument.

Mercurial 4.3.3 (2017-10-01)

Prevent crashes when clearing progress bar. (issue5684)
rebase: move bookmarks with --keep (issue5682)

Mercurial 4.3.2 (2017-09-18)

restore compatibility with older versions of Python 2.7 by not using a bytearray with struct.unpack_from()
restore mingw compatibility for setup.py
hgwebdir: read 'web.template' untrusted (plugs potential security issue)
repair: preserve phase when not using generaldelta (issue5678)
ssh: fix flakey ssh errors on BSD systems
restore error handling behavior around certain I/O errors; the regressed behavior could result in transactions not being properly rolled back if stdio handles encountered errors (issue5658)
templatekw: choose {latesttag} by len(changes), not date (issue5659)
record: fix revert -i for lines without newline (issue5651)
mq: create non-lossy patches, also with custom global diff configuration

Mercurial 4.3 / 4.3.1 (2017-08-10)

(4.3.1 was released immediately after 4.3 to fix a release oversight.)

An overview of new features available. This is a regularly-scheduled quarterly feature release.

Notable changes

experimental amend extension providing the amend command
experimental sparse extension
Support for Python 2.6 has been dropped.
Bundles created by the strip extension now store phase information. It will be restored when unbundling.
The strip extension now removes relevant obsmarkers. If a backup requested (the default), the obsmarkers are stored in the backup bundle and will be restored when unbundling.
hg show work (from the experimental show extension) now displays more info
hg show stack is a new view for the current, in-progress changeset and others around it
Mitigation for two security vulnerabilities

CVE-2017-1000115

Mercurial's symlink auditing was incomplete prior to 4.3, and could be abused to write to files outside the repository.

CVE-2017-1000116

Mercurial was not sanitizing hostnames passed to ssh, allowing shell injection attacks on clients by specifying a hostname starting with -oProxyCommand. This is also present in Git (CVE-2017-1000117) and Subversion (CVE-2017-9800), so please patch those tools as well if you have them installed.

Mercurial 4.2.3 (2017-08-10)

This was an out-of-cycle backport of security fixes from 4.3 for users stuck on Python 2.6.

Mercurial 4.2.2 (2017-07-05)

This is a regularly-scheduled bugfix release.

largefiles: avoid a crash when archiving a subrepo with largefiles disabled
rebase: also test abort from pretxnclose error
rebase: backed out changes 2519994d25ca and cf8ad0e6c0e4 (issue5610)
rebase: reinforce testing around precommit hook interrupting a rebase

Mercurial 4.2.1 (2017-6-4)

This is a regularly-scheduled bugfix release.

hg graft now works when grafting across merges that were problematic before (b4e1e30528c7).
A race condition in hg status was partially fixed (issue5584).
The message about deprecated SHA-1 hashes in the [hostfingerprints] config section now references the correct syntax for replacing them with SHA-256 hashes (issue5559).

Mercurial 4.2 (2017-5-2)

An overview of new features available. This is a regularly-scheduled quarterly feature release.

Notable changes

Pager support has been moved into core and is now enabled by default. This is now controlled with the ui.paginate setting.
- Note that in 4.2-rc, the ui.paginate option was named pager.enable. The old name has been dropped in the final release. If you had turned pagination off using pager.enable=False, please update your config.
Color support has also been moved into core and is now enabled by default (the ui.color setting now defaults to 'auto').
The new experimental 'show' extension provides a way to view various information about your repository in an ergonomic way. It is deliberately designed for human consumption and not for scripting, so it doesn't carry the same backward compatibility guarantees as other commands. See 'hg help -e show' for more information.
Mercurial now requires setuptools on Windows.

commands

Pager support has been added to the 'log', 'diff', 'branches', 'files', 'status', 'summary', and 'tags' commands, as well as the '--patch', '--list', and '--stat' options of hg shelve.
bisect: set a blockedtag when running the check command
bookmarks: check HG_PENDING strictly
branches: populate all template keywords in formatter
commandserver: handle backlog before exiting
commandserver: prevent unlinking socket twice
commit: optionally strip quotes from commit template (BC)
diff: add --binary option for git mode diffs
help: add pointer how to narrow list of resolved/unresolved files (issue5469)
pager: advertise the config option in the default hgrc
pager: avoid shell=True on subprocess.Popen for better errors (issue5491)
pager: don't terminate with extreme prejudice on SIGPIPE (BC)
pager: exit cleanly on SIGPIPE (BC)
pager: improve support for various flavors of 'more' on Windows
pager: use less as a fallback on Unix
pull: abort pull --update if config requires destination (issue5528)
serve: add support for Mercurial subrepositories
status: handle more node indicators in buildstatus
status: support commands.status.relative config
update: accept --merge to allow merging across topo branches (issue5125)
verify: fix length check

core

bundle2: ignore errors seeking a bundle after an exception (issue4784)
checkheads: upgrade the obsolescence postprocessing logic (issue4354)
color: insert color code after every "\e[0m" (issue5413)
color: sync text attributes and buffered text output on Windows (issue5508)
config: use "churn" as an example extension
config: drop pager from the recommended extension
context: optimize linkrev adjustment in blockancestors() (issue5538)
crecord: avoid setting non-existing SIGTSTP signal on windows (issue5512)
debian: configure editor and pager to sensible-editor and sensible-pager by default
dispatch: ignore further SIGPIPE while handling KeyboardInterrupt
dispatch: protect against malicious 'hg serve --stdio' invocations (SEC)
dispatch: start profiling earlier
filemerge: optionally strip quotes from merge marker template (BC)
formatter: add support for changeset templating
formatter: support json formatting of long type
graphlog: draw multiple edges towards null node (issue5440)
graphlog: optionally strip quotes from graphnode template (BC)
localrepo: deprecate 'repo.join' in favor of 'repo.vfs.join'
localrepo: deprecate 'repo.opener' (API)
localrepo: deprecate 'wfile'
localrepo: deprecated 'repo.wopener' (API)
match: adding support for matching files inside a directory
packaging: add make target for linux wheels
patch: make diff in git mode respect --text option (issue5510)
plain: ignore [commands] config
profiling: add statprof support for Chrome trace viewer rendering
progress: retry ferr.flush() and .write() on EINTR (issue5532)
py3: stop exporting urlparse from pycompat and util (API)
rcutil: let environ override system configs (BC)
rcutil: let rccomponents return different types of configs (API)
rcutil: move scmutil.*rcpath to rcutil (API)
rcutil: rename rcpath to rccomponents (API)
rcutil: split osrcpath to return default.d paths (API)
record: update help message to use operation instead of "record" (issue5432)
revlog: avoid applying delta chain on cache hit
revset: split language services to revsetlang module (API)
revset: stop supporting plain list as input set (API)
revset: stop supporting predicate that returns plain list (API)
setup: use setuptools on Windows (issue5400)
smartset: move set classes and related functions from revset module (API)
sshpeer: try harder to snag stderr when stdout closes unexpectedly
templatefilter: add support for 'long' to json()
templatekw: have showlist() take mapping dict with no **kwargs expansion (API)
templatekw: make join() escape values of extras (BC) (issue5504)
templater: make pad() strip color codes before computing width (issue5416)
test-profile: allow negative time in JSON output (issue5542)
track-tags: write all tag changes to a file
util: always force line buffered stdout when stdout is a tty (BC)
vfs: extract 'vfs' class and related code to a new 'vfs' module (API)

extensions

histedit: log the time taken to read in the commands list
histedit: make check for unresolved conflicts explicit (issue5545)
histedit: modify rollup to discard date from the rollup commit (issue4820)
histedit: use safecleanupnode in _aborthistedit (issue5500)
largefiles: add copytostore() fstandin argument to replace readstandin() (API)
largefiles: add lfile argument to updatestandin() for efficiency (API)
largefiles: make copytostore() accept only changectx as the 2nd argument (API)
largefiles: omit updating newly added standin at linear merging
largefiles: remove unused keyword argument of copytostore() (API)
largefiles: replace hashrepofile by hashfile (API)
largefiles: set the extension as enabled locally after a share requiring it
patchbomb: add config knob to generate flags by template (issue5354)
patchbomb: drop internal option for pbranch extension (API)
patchbomb: use modern pager to display -n/--test result (BC)
rebase: abort hg pull --rebase if rebase.requiredest is set (issue5514)
rebase: abort if *any* commit in rebase set is public
rebase: add flag to require destination
rebase: allow aborting if last-message.txt is missing
rebase: allow destination-free continue and abort (issue5513)
rebase: allow rebasing children of wd to wd if a new branch has been set (BC)
rebase: unhide original working directory node as well (issue5219)
shelve: add -n/--name option to unshelve (issue5475)
shelve: add logic to preserve active bookmarks
show: new extension for displaying various repository data

hgweb

hgweb: add a "patch" query parameter to filelog command
hgweb: do not show "descending" link in followlines UI for filelog heads
hgweb: handle a "descend" query parameter in filelog command
hgweb: handle a "linerange" request parameter in filelog command
hgwebdir: add support for explicit index files

Behavior changes

commit: optionally strip quotes from commit template (BC)
filemerge: optionally strip quotes from merge marker template (BC)
graphlog: optionally strip quotes from graphnode template (BC)
pager: don't terminate with extreme prejudice on SIGPIPE (BC)
pager: exit cleanly on SIGPIPE (BC)
patchbomb: use modern pager to display -n/--test result (BC)
rcutil: let environ override system configs (BC)
rebase: allow rebasing children of wd to wd if a new branch has been set (BC)
templatekw: make join() escape values of extras (BC) (issue5504)
util: always force line buffered stdout when stdout is a tty (BC)

Internal API changes

largefiles: add copytostore() fstandin argument to replace readstandin() (API)
largefiles: add lfile argument to updatestandin() for efficiency (API)
largefiles: make copytostore() accept only changectx as the 2nd argument (API)
largefiles: remove unused keyword argument of copytostore() (API)
largefiles: replace hashrepofile by hashfile (API)
localrepo: deprecate 'repo.opener' (API)
localrepo: deprecated 'repo.wopener' (API)
patchbomb: drop internal option for pbranch extension (API)
py3: stop exporting urlparse from pycompat and util (API)
rcutil: let rccomponents return different types of configs (API)
rcutil: move scmutil.*rcpath to rcutil (API)
rcutil: rename rcpath to rccomponents (API)
rcutil: split osrcpath to return default.d paths (API)
revset: split language services to revsetlang module (API)
revset: stop supporting plain list as input set (API)
revset: stop supporting predicate that returns plain list (API)
smartset: move set classes and related functions from revset module (API)
templatekw: have showlist() take mapping dict with no **kwargs expansion (API)
vfs: extract 'vfs' class and related code to a new 'vfs' module (API)

Mercurial 4.1.3 (2017-4-18)

This is an out of cycle release to address a security issue:

hg serve --stdio could be tricked into granting authorized users access to the Python debugger. Thanks to Jonathan Claudius of Mozilla for reporting this issue. This issue is only a security issue for repositories served using --stdio, which includes ssh but *not* http. This is CVE-2017-9462.

Mercurial 4.1.2 (2017-4-3)

This is a regularly-scheduled bugfix release.

Mercurial should work inside IIS on Windows again. (issue5493)
zstd support now refuses to work on old bundle formats. (issue5506)
Merges involving subrepositories no longer crash in some cases. (issue5505)
Checking for new heads during push is no longer accidentally quadratic

Mercurial 4.1.1 (2017-3-2)

This is a regularly-scheduled bugfix release.

Several incorrect mailing list addresses have been corrected.
Various error cases have been corrected during push and pull.
Minor issues that happened when Mercurial spawned worker processes have been fixed.

Mercurial 4.1 (2017-2-1)

An overview of new features available. This is a regularly-scheduled quarterly feature release.

commands

commands: config option to control bundle compression level
crecord: add an experimental option for space key to move cursor down
crecord: rewrite status line text (BC)
diff: add experimental support for more git-diff extended diff features
graft: support grafting changes to new file in renamed directory (issue5436)
help: show help for disabled extensions (issue5228)
help: update help for 'hg update' which was misleading (issue5427)
merge: fix crash on criss cross merge with dir move and delete (issue5020)
summary: add evolution "troubles" information to summary output
summary: use the same labels as log command in "parent: " line
templates: display evolution "troubles" in command line style

core

changelog: keep track of file end in appender (issue5444)
dispatch: stop supporting non-use of @command (API)
hook: do not redirect stdout/err/in to ui while running in-process hooks (BC)
httppeer: advertise and support application/mercurial-0.2
localrepo: experimental support for non-zlib revlog compression
manifest: add bundlemanifestlog support
manifest: add unionmanifestlog support
manifest: make revlog verification optional
patch: add experimental config knob for displaying the index header
patch: add similarity config knob in experimental section
patch: add label for coloring the index extended header
patch: add label for coloring the similarity extended header
profiling: make statprof the default profiler (BC)
profiling: use vendored statprof and upstream enhancements (BC)
revlog: REVIDX_EXTSTORED flag
revlog: add clone method
revlog: ensure that flags do not overflow 2 bytes
revlog: flag processor
revlog: inline start() and end() for perf reasons
revlog: make compressed size comparisons consistent
revlog: merge hash checking subfunctions
revlog: move decompress() from module to revlog class (API)
revlog: optimize _chunkraw when startrev==endrev
revlog: pass revlog flags to addrevision
revlog: reorder index accessors to match data structure order
revlog: use compression engine API for compression
revlog: use compression engine APIs for decompression
revset: add regular expression support to 'desc'
revset: make children() not look at p2 if null (issue5439)
run-tests: forward Python USER_BASE from site (issue5425)
server: move cmdutil.service() to new module (API)
templatekw: force noprefix=False to insure diffstat consistency (issue4755)
ui: check EOF of getpass() response read from command-server channel
ui: do not translate empty configsource() to 'none' (API)
ui: factor out ui.load() to create a ui without loading configs (API)
util: compression APIs to support revlog compression and decompression
util: declare wire protocol support of compression engines
wireproto: advertise supported media types and compression formats
wireproto: only advertise HTTP-specific capabilities to HTTP peers (BC)
wireproto: perform chunking and compression at protocol layer (API)

extensions

convert: add config option to control storing original revision
convert: add config option to copy extra keys from Git commits
convert: config option for git rename limit
convert: config option to control Git committer actions
rebase: calculate ancestors for --base separately (issue5420)
rebase: check for conflicts before continuing
rebase: fail-fast the pull if working dir is not clean (BC)
shelve: allow multiple shelves with --patch and --stat
shelve: choose a legal shelve name when no name is passed (issue5112)
shelve: make --keep option survive user intervention (issue5431)
shelve: make unshelve not crash when there are missing files (issue4176)

hgweb

hgweb: link to raw-file on annotation page (BC)
hgweb: make log streams compatible with command server
hgweb: restore ascending iteration on revs in filelog web command
hgweb: support Content Security Policy

chg

chg: send type information via S channel (BC)
chg: support long socket path
chgserver: make S channel support pager request
chgserver: override runcommand

Behavior Changes

chg: send type information via S channel (BC)
crecord: rewrite status line text (BC)
hgweb: link to raw-file on annotation page (BC)
hook: do not redirect stdout/err/in to ui while running in-process hooks (BC)
profiling: make statprof the default profiler (BC)
profiling: use vendored statprof and upstream enhancements (BC)
rebase: fail-fast the pull if working dir is not clean (BC)
wireproto: only advertise HTTP-specific capabilities to HTTP peers (BC)

Internal API Changes

bookmarks: make bookmarks.comparebookmarks accept binary nodes (API)
bookmarks: rename 'compare()' to 'comparebookmarks()' (API)
revlog: move decompress() from module to revlog class (API)
server: move cmdutil.service() to new module (API)
ui: do not translate empty configsource() to 'none' (API)
ui: factor out ui.load() to create a ui without loading configs (API)
util: remove compressors dict (API)
util: remove decompressors dict (API)
wireproto: perform chunking and compression at protocol layer (API)
dispatch: stop supporting non-use of @command (API)

Mercurial 4.0.2 (2017-01-04)

This is a regularly-scheduled bugfix release.

demandimport: do not raise ImportError for unknown item in fromlist
posix: make poll() restart on interruption by signal (issue5452)
hgweb: add missing slash to file log url in rss style

Mercurial 4.0.1 (2016-12-1)

This is a regularly-scheduled bugfix release.

hgweb: cache fctx.parents() in annotate command (issue5414)
vfs, scmutil: ignore EPERM at os.utime, which avoids ambiguity (issue5418)

Mercurial 4.0 (2016-11-1)

An overview of new features available. This is a regularly-scheduled quarterly feature release. Unlike other 4.0 software releases, this is simply 3.9 + .1, so it should be the usual pain-free upgrade.

commands

annotate: calculate line count correctly
branchmap: acquires lock before writting the rev branch cache
clone: set default path correctly when doing a clone+share (issue5378)
copy: distinguish "file exists" cases and add a hint (BC)
commit: return 1 for interactive commit with no changes (issue5397)
config: add template support
debugobsolete: add formatter support (issue5134)
files: change documentation to match its behaviour (issue5276)
grep: add formatter support
help: show content for explicitly disabled extension (issue5228)
import: abort instead of crashing when copy source does not exist (issue5375)
import: report directory-relative paths in error messages (issue5224)
log: copy the way of ancestor traversal to --follow matcher (issue5376)
log: preserve topo sort in graph even if additional filter options specified
merge: add conflict labels to merge command
merge: avoid superfluous filemerges when grafting through renames (issue5407)
strip: report both bundle files in case of exception (issue5368)
tag: clarify warning about making a tag on a branch head
version: add formatter support
flags: allow specifying --no-boolean-flag on the command line (BC)

core

changelog: disable delta chains
copies: make _checkcopies handle copy sequences spanning the TCA (issue4028)
formatter: add function to convert list to appropriate format (issue5217)
lock: show more detail for new-style locks in lock waiting message (issue4752)
revset: do not rewrite ':y' to '0:y' (issue5385)
revset: fix order of nested '_(|int|hex)list' expression (BC)
revset: fix order of nested 'or' expression (BC)
revset: fix order of nested 'range' expression (BC)
revset: make reverse() and sort() no-ops when ordering requirement allows (BC)
revset: support "follow(renamed.py, e22f4f3f06c3)" (issue5334)
templater: provide a termwidth keyword (issue5395)
templater: add inheritance support to style maps
templater: add relpath() to convert repo path to relative path (issue5394)
templater: make pad() evaluate boolean argument (BC)
wireproto: unescape argument names in batch command (BC)

extensions

journal: properly check for held lock (issue5349)
journal: use fm.formatdate() to pass date tuple in appropriate type (BC)
journal: use fm.formatlist() to pass hashes in appropriate type (BC)
journal: use fm.hexfunc() to get full hash in JSON/template output (BC)
largefiles: fix 'deleted' files sometimes persistently appearing with R status
largefiles: handle that a found standin file doesn't exist when removing it
largefiles: more safe handling of interruptions while updating modifications
largefiles: when setting/clearing x bit on largefiles, don't change other bits
mq: release lock after transaction in qrefresh
mq: take wlock when 'qqueue' is doing write operations
rebase: properly calculate total commits to rebase (issue5347)
rebase: rebase changesets in topo order (issue5370) (BC)

hgweb

hgweb: avoid line wrap between revision and annotate-info (issue5398)
hgweb: config option to control zlib compression level

Mercurial 3.9.2 (2016-10-1)

This is a regularly-scheduled bugfix release.

annotate: correct output in some merge cases (issue5360)
crecord: properly handle files with No newline at eof (issue5268)
grep: rewrite help to better document current (confusing) behavior

Mercurial 3.9.1 (2016-9-1)

This is a regularly-scheduled bugfix release.

bundle2: fail faster when interrupted
bundle2: localize handleoutput remote prompts
convert: move svn config initializer out of the module level
debian: update source URL in copyright file
exchange: correctly specify url to unbundle (issue5145)
help: add example of '[templates]' usage
help: update link to wiki/CommandServer
osx: update bugzilla link in readme
revset: fix keyword arguments to go through optimization process
win32: update link to mailing list in readme
win32: update wiki link in mercurial.ini

Mercurial 3.9 (2016-8-1)

An overview of new features available.

commands

annotate: handle empty files earlier
annotate: optimize line counting
bookmarks: abort 'push -B .' when no active bookmark
bookmarks: add 'hg pull -B .' for pulling the active bookmark (issue5258)
bookmarks: jettison bmstore's write() method per deprecation policy
bookmarks: make writing files out avoid ambiguity of file stat
commandserver: add new forking server implemented without using SocketServer
commandserver: backport handling of forking server from chgserver
commandserver: manually create file objects from socket
commandserver: send pgid in hello message
commandserver: use SOMAXCONN as queue size of pending connections
patch: allow copy information to be passed in
patch: define full messages for interactive record/revert
pull: add help information about pulling active bookmark
revert: don't backup if no files reverted in interactive mode (issue4793)
revert: use "discard"/"revert" verb when reverting interactively (issue5143)
update: fix bug when update tries to modify folder symlink

core

date: accept broader range of ISO 8601 time specs
revlog: add a fast path for "ambiguous identifier"
templatekw: fix join format of parents keyword (issue5292)
templatekw: fix join format of revset() function
revset: build dict of extra sort options before evaluating set
transaction: turn lack of locking into a hard failure (API)
ui: don't fixup [paths] sub-options
ui: path option to declare which revisions to push by default
ui: provide official way to reset internal state per command
sslutil: allow TLS 1.0 when --insecure is used
sslutil: improve messaging around unsupported protocols (issue5303)
sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
sslutil: abort when unable to verify peer connection (BC)
sslutil: config option to specify TLS protocol version
sslutil: convert socket validation from a class to a function (API)
sslutil: don't access message attribute in exception (issue5285)
sslutil: more robustly detect protocol support
sslutil: move sslkwargs logic into internal function (API)
sslutil: per-host config option to define certificates
sslutil: remove sslkwargs() (API)
sslutil: remove ui from sslkwargs (API)
sslutil: require TLS 1.1+ when supported
sslutil: require serverhostname argument (API)
sslutil: stop checking for web.cacerts=! (BC)
sslutil: support defining cipher list
hg: copy [hostsecurity] options to remote ui instances (issue5305)
demandimport: avoid infinite recursion at actual module importing (issue5304)
rbc: fix superfluous rebuilding from scratch - don't abuse self._rbcnamescount
url: avoid re-issuing incorrect password (issue3210)
util: better handle '-' in version string (issue5302)
packagelib: do not remove packages directory in hggetversion (issue5262)

extensions

histedit: add optional parameter for determining intial editor line
largefiles: check file in the repo store before checking remotely (issue5257)
largefiles: make cloning not ask two times about password (issue4883)
largefiles: makes verify batching stat calls to remote
largefiles: send statlfile remote calls only for nonexisting locally files
rebase: do not abort if all changesets have equivalents in the destination
rebase: handle successor targets (issue5198)
rebase: introduce a rebaseruntime (RR) class
rebase: make collapsing use explicit logic to decide on the rev to reuse
rebase: pass repo, ui and opts objects to the RR class constructor
rebase: remove sortedstate-related confusion
shelve: make unshelve be able to abort in any case
keyword: avoid traceback when kwdemo is run outside a repo
rebase: turn rebase revs into set before filtering obsolete
extdiff: escape path for docstring (issue5301)

unsorted

atomictempfile: add context manager support
atomictempfile: add read to the supported file operations
bashcompletion: show available command-line switches for aliases
chg: send SIGPIPE to server immediately when pager exits (issue5278)
dispatch: add fail-* family of hooks
dispatch: always load extensions before running shell aliases (issue5230)
dispatch: defer environment variable resolution in alias commands (BC)
dispatch: set ui.insecureconnections when --insecure is used
dispatch: stop setting web.cacerts=! to indicate --insecure
error: make HintException a mix-in class not derived from BaseException (API)
error: make hintable exceptions reject unknown keyword arguments (API)
hgcia: remove hgcia (BC)
journal: add share extension support
journal: add support for seaching by pattern
localrepo: jettison parents() method per deprecation policy (API)
mail: unsupport smtp.verifycert (BC)
py3: shift from future import absolute import to beginning (issue5269)
rollback: add a config knob for entirely disabling the command
subrepo: use unset instead of env -u to fix test on BSDs (issue5229)
templates: add support for filelog webcommand in json style
templates: add support for filerevision webcommand in json style
templates: add support for search webcommand in json style
templates: add support for summary webcommand in json style
update: fix bare --clean to work on new branch (issue5003) (BC)
url: add distribution and version to user-agent request header (BC)
chg: forward SIGINT, SIGHUP to process group

Mercurial 3.8.4 (2016-7-01)

This is a regularly-scheduled bugfix release.

bdiff: extend matches across popular lines
bdiff: remove effectively dead code
bundle2: don't assume ordering of heads checked after push
help: document that [subpaths] may rewrite relative paths
largefiles: fix support for local largefiles while using share extension
sslutil: synchronize hostname matching logic with CPython

Mercurial 3.8.3 (2016-6-01)

This is a regularly-scheduled bugfix release.

bookmarks: allow pushing active bookmark on new remote head (issue5236)
localrepo: prevent executable-bit only changes from being lost on amend
strip: invalidate phase cache after stripping changeset (issue5235)

Mercurial 3.8.2 (2016-5-16)

This is an unscheduled bugfix release. 3.8.1 contained a noisy deprecation warning that was only intended for Mercurial developers, sorry.

bookmarks: properly invalidate volatile sets when writing bookmarks
builddeb: add distroseries to tagged versions
bundle2: properly request phases during getbundle
debian: add wish to suggests
debian: forgot to make debian/rules executable in 6b95a623ec90
deprecation: gate deprecation warning behind devel configuration
help: fix the display for hg help internals.revlogs (issue5227)
help: search section of help topic by translated section name correctly
hg-ssh: copy doc string to man page
patch: show lower-ed translated message correctly
progress: stop excessive clearing (issue4801)

Mercurial 3.8 / 3.8.1 (2016-5-1)

(3.8.1 was released immediately after 3.8 to fix a release oversight.)

Regularly scheduled feature release. This release contains a low-priority security fix for:

CVE-2016-3105 Mercurial: arbitrary code execution when converting Git repos

Mercurial prior to 3.8 allowed arbitrary code execution when using the convert extension on Git repos with hostile names. This could affect automated code conversion services that allow arbitrary repository names. This is a further side-effect of Git CVE-2015-7545. Reported and fixed by Blake Burkhart.

There's also an overview of new features available.

commands

bookmarks: add 'hg push -B .' for pushing the active bookmark (issue4917)
bookmarks: avoid creating a nested repository during testing
branchmap: check node against changelog instead of repo
commands: add postincoming explicit brev argument (API)
commands: centralize code to update with extra care for non-file components
commit: block amend while histedit is in progress (issue4800)
fileset: replace predicate by filesetpredicate of registrar (API)
graft: suggest the correct tool to continue (not graft)
graft: use single quotes around command hint
log: disable graph styling when HGPLAIN is set (issue5212)
log: fix seen state handling for > 2 parents (issue5174)
log: fix status template to list copy source per dest (issue5155)
merge: minimize conflicts when common base is not shown (issue4447)
pull: activate a bookmark matching with the destination of the update (BC)
pull: deactivate a bookmark not matching with the destination of the update
revert: makes interactive mode ask to forget added files (issue4936)
verify: check directory manifests
verify: check for orphaned dirlogs
verify: include "manifest" prefix in a few more places
verify: move cross-checking of changeset/manifest out of _crosscheckfiles()
verify: show progress while verifying dirlogs
verify: don't init subrepo when missing one is referenced (issue5128) (API)

core

bdiff: balance recursion to avoid quadratic behavior (issue4704)
bdiff: further restrain potential quadratic performance
hook: report untrusted hooks as failure (issue5110) (BC)
revset: remove useless extpredicate class (API)
revset: make sort() do dumb multi-pass sorting for multiple keys (issue5218)
templater: load and expand aliases by template engine (API) (issue4842)
templater: separate function to create templater from map file (API)
ui: add prompt argument to write (issue5154) (API)

extensions

convert: keep converted hg parents that are outside convert.hg.revs (BC)
histedit: adds hint how to reorder changesets at editor (issue3766)
histedit: improve error when run on nodes with children (issue5056)
histedit: make histedit aware of obsolescense not stored in state (issue4800)
largefiles: add abstract methods in remotestore class
largefiles: don't access repo.changelog directly in getlfilestoupload
largefiles: don't explicitly list optional parameters that are not used
largefiles: drop partial support for not having a user cache
largefiles: introduce push --lfrev to control which revisions are pushed
largefiles: replace invocation of os.path module by vfs in lfcommands.py
largefiles: specify unit for ui.progress when operating on files
largefiles: use revisions as a ui.progress unit
rebase: 'hg pull --rebase' now update only if there was nothing to rebase
rebase: add potential divergent commit hashes to error message (issue5086)
rebase: adds storing collapse message (issue4792)
rebase: choose default destination the same way as 'hg merge' (BC)
rebase: explicitly test abort from ambiguous destination
rebase: fix crash when rebase aborts while rebasing obsolete revisions
rebase: mention help merge-tools in help
rebase: perform update through the 'update' command
rebase: remove experimental option from 'rebase' config section
rebase: respect checkunknown and checkignored in more cases
rebase: suggest the correct tool to continue (not rebase)
rebase: restrict rebase destination to the pulled set (issue5214)
shelve: adds restoring newly created branch (issue5048) (BC)
shelve: changes getting opts values by get method
shelve: make non bare shelve not saving branch information in bundle
shelve: preserve newly created branch on non-bare shelve in wctx (BC)
shelve: suggest the correct tool to continue (not unshelve)

hgweb

hgweb: add option to convert encoding of graphdata()
hgweb: add parents to json-log (issue5074)
hgweb: generate last change date for an empty atom-bookmarks feed (issue5022)

unsorted

blackbox: optionally log event source
bugzilla: do not load style file if template is specified (BC)
bundle: move writebundle() from changegroup.py to bundle2.py (API)
bundle: warn when update to revision existing only in a bundle (issue5004)
bundlerepo: properly handle hidden linkrev in filelog (issue4945)
changelog: add class to represent parsed changelog revisions
changelog: avoid slicing raw data until needed
changelog: backed out changeset 1778770e1982
changelog: backed out changeset 86de91c56355
changelog: lazily parse date/extra field
changelog: lazily parse description
changelog: lazily parse files
changelog: lazily parse manifest node
changelog: lazily parse user
changelog: lazy decode description (API)
changelog: lazy decode user (API)
changelog: parse description last
chg: fallback to original hg for some unsupported commands or flags
chg: forward job control signals to worker process (issue5051)
chg: pass sensitive command line flags to server
chgserver: create new process group after fork (issue5051)
date: reallow negative timestamp, fix for Windows buggy gmtime() (issue2513)
debugrevlog: fix dumping manifest fails on empty first revision (issue5062)
demandimport: blacklist sqlalchemy.events as it has side effects (issue5085)
demandimport: enforce ignore list while processing modules in fromlist
destutil: choose non-closed branch head at first (BC)
dispatch: add wd parameter to _getlocal
dispatch: catch KeyboardInterrupt more broadly
dispatch: factor out command failure handling into a function
dispatch: flush ui before returning from dispatch
dispatch: make cmdalias forward command attributes to function
dispatch: make loading extra information from extension extensible
dispatch: show deprecation warning if command has no attributes (issue5137)
dispatch: store norepo/optionalrepo/inferrepo attributes in function (API)
dispatch: strip command line options like config file options
encoding: add option to escape non-ascii characters in JSON
graphlog: bring back color to node symbol template
graphmod: set default edge styles for ascii graphs (BC)
hg: perform update after pulling during clone with share (issue5103)
http: support sending hgargs via POST body instead of in GET or headers
localrepo: move new repo requirements into standalone function (API)
localrepo: support background closing for wwrite()
mail: retain hostname for sslutil.wrapsocket (issue5203)
match: rename "narrowmatcher" to "subdirmatcher" (API)
mpatch: un-nest the move() method
mpatch: unify mpatchError (issue5182)
notify: do not load style file if template is specified (BC)
record: deprecate the extension
registrar: add templatefilter to mark a function as template filter (API)
registrar: add templatefunc to mark a function as template function (API)
registrar: add templatekeyword to mark a function as template keyword (API)
registrar: remove useless base classes (API)
remove: add progress support
remove: fix --force option help description (issue5177)
remove: queue warnings until after status messages (issue5140) (API)
scmutil: support background closing for write()
serve: add chdir command for --daemon-postexec
serve: rename --daemon-pipefds to --daemon-postexec (BC)
sslutil: require a server hostname when wrapping sockets (API)
streamclone: specify unit for ui.progress when handling data
subrepo: disable localizations when calling Git (issue5176)
templatefilters: drop broken "jsonescape" from filters table (BC)
templatefilters: make json filter be byte-transparent (BC) (issue4926)
templatekw: switch ctx of list expression to rev of {parents} (BC)
test-debugextensions: passes with byte-compilation disabled (issue5147)
testing: expand Hypothesis tests with branch commands
tests: add test for "log -r wdir() -p" (issue4871)
tests: ensure that 'hg update' is disabled during histedit (issue3655)
tests: update test output for test written on stable branch (issue5104)
treemanifest: don't use cp -T, not supported on OS X
update: change default destination to tipmost descendant (issue4673) (BC)
update: check command line before modifying repo
version: verbose list internal and external extension source (issue4731)

Mercurial 3.7.3 (2016-3-29)

This is an out of cycle release to address three security issues:

CVE-2016-3630 Mercurial: remote code execution in binary delta decoding

Mercurial prior to 3.7.3 contained two bounds-checking errors in its binary delta decoder that may be exploitable via clone, push, or pull.

CVE-2016-3068 Mercurial: arbitrary code execution with Git subrepos

Mercurial prior to 3.7.3 allowed URLs for Git subrepos that could result in arbitrary code execution on clone. This is a further side-effect of Git CVE-2015-7545. Reported by Blake Burkhart.

CVE-2016-3069 Mercurial: arbitrary code execution when converting Git repos

Mercurial prior to 3.7.3 allowed arbitrary code execution when converting Git repos with hostile names. This could affect automated conversion services. Reported by Blake Burkhart.
bdiff: (pure) support array.array arrays (issue5130)
convert: add new, non-clowny interface for shelling out to git (SEC)
convert: dead code removal - old git calling functions (SEC)
convert: rewrite calls to Git to use the new shelling mechanism (SEC)
convert: rewrite gitpipe to use common.commandline (SEC)
convert: test for shell injection in git calls (SEC)
files: don't recurse into subrepos without a path or -S (issue5127)
hg: perform update after pulling during clone with share (issue5103)
mq: restrict generated patch name to 75 characters (issue5117)
obsolete: fix n^2 marker computation behavior
parsers: detect short records (SEC)
parsers: fix list sizing rounding error (SEC)
streamclone: fix error when store files grow while stream cloning
subrepo: adapt to git's recent renames-by-default
subrepo: set GIT_ALLOW_PROTOCOL to limit git clone protocols (SEC)

Mercurial 3.7.2 (2016-3-1)

This is a regularly-scheduled bugfix release.

bundlerepo: properly handle hidden linkrev in filelog (issue4945)
bundlerepo: properly handle hidden linkrev in manifestlog (issue4945)
demandimport: add _imp to ignore list
doc: correct example concerning "hg purge" alias in man page "hgrc.5"
doc: remove deprecated option from synopsis of command help
fileset: fix copy/paste in eol() error message
help: fix typo in backgroundclose documentation
help: hg.intevation.de is new primary name of hg.intevation.de (and new cert)
help: update template examples to use reST literal syntax
hg: obtain lock when creating share from pooled repo (issue5104)
log: fix order of revisions filtered by multiple OR options (issue5100)
rebase: update working directory when aborting (issue5084)
revert: properly revert to ancestor of p2 during merge (issue5052)
revset: flatten chained 'list' operations (aka function args) (issue5072)
setup: avoid procedure related to hg.exe at setup.py --pure
ui: fix crash by non-interactive prompt echo for user name
unionrepo: properly handle hidden linkrev in revlog (issue5070)
zeroconf: forward all arguments passed to ui.configitems() wrapper

Mercurial 3.7.1 (2016-2-3)

This addresses an urgent regression in compilation on Solaris and metadata handling for conversions.

amend: don't preserve most extra fields
graft: don't preserve most extra fields
histedit: fix typo in documentation
osutil: disable compilation of recvfds() on unsupported platforms
osutil: do not abort loading pure module just because libc has no recvmsg()
rebase: backout changeset 986d04b9fedd
rebase: backout changeset d755a9531fce
rebase: don't preserve most extra fields

Mercurial 3.7 (2016-2-1)

Regularly scheduled feature release. There's also an overview of new features available.

commands

merge: don't try to merge subrepos twice (issue4988)
pull: advance current active bookmark at pull --update correctly
templater: abort if infinite recursion detected while evaluation (issue4758)
annotate: add missing period to help
annotate: mention that -n is suppressed in help
backout: disable --merge with --no-commit (issue4874)
bookmark: deprecate 'bmstore.write' method
bookmarks: hoist getbkfile out of bmstore class
bookmarks: make _readactive safe when readlines raises ENOENT
branch: reword help text
clone: move bookmarks and checkouts before pull help
clonebundles: improve BUNDLESPEC documentation
clonebundles: remove advertisement of feature
commands.summary: switch to mergestate.read()
commands: inline definition of localrepo.parents() and drop the method (API)
commands: make backout acquire locks before processing
commands: make commit acquire locks before processing (issue4368)
commands: use context manager for opened bundle file
commandserver: drop tell() and seek() from channels (issue5049)
commandserver: reset state of progress bar per command
commit: add a way to return more information from the chunkselector
commit: add amend mode for crecord commit -i
commit: add some help examples (issue4963)
commit: adjust the quoting in the examples to be Windows friendly
commit: fix rest syntax of examples
commit: make commit acquire store lock before processing for consistency
commit: preserve extra when amending with commit --amend
fileset: add missing() predicate (issue4925)
fileset: use set instead of list to mark predicates for efficiency (API)
graft: clarify in help that '-r' is not just optional
graft: copy extra (except branch) when copying changesets
graft: hook afterresolvedstates
graft: improve --continue abort message
help: fix quoting for bundle1 options
import: add word to help text
import: limit scope of msg in tryimportone
import: reorder help text
log: speed up single file log with hidden revs (issue4747)
log: add 'hg log' example for full hashes
log: help provide sort by date example
log: mention ordering
log: speed up hg log <file|folder>
merge.graft: add option to keep second parent
merge: add options to warn or ignore on colliding unknown files
merge: move almost all change/delete conflicts to resolve phase (BC) (API)
merge: refuse update/merge if there are unresolved conflicts (BC)
mergestate: raise structured exception for unsupported merge records
patch: disable nobinary when HGPLAIN=1
pull: make a single call to obsstore.add (issue5006)
pull: return 255 value on update failure (issue4948) (BC)
push: specify default-push and default as fallback paths
status: back out changeset 89f49813526c
status: change + back out == clean (API)
status: revert + flag-change == modified
summary: add troubles list to the output of hg summary
summary: mention graft
summary: print unstable, bumped and divergent as unconditionally plural
tags: mention --quiet switch in help (issue4920)
verify: add a hook that can let extensions manipulate file lists
verify: clean up weird error/warning lists
verify: get rid of some unnecessary local variables
verify: move checklog() onto class
verify: move exc() function onto class
verify: remove unreachable code to reraise KeyboardInterrupt

core

context: don't use util.cachefunc due to cycle creation (issue5043)
context: use a the nofsauditor when matching file in history (issue4749)
parsers: check results of PyInt_FromLong (issue4771)
repoview: fix corrupted hiddencache crash Mercurial (issue5042)
revlog: avoid string slice when decompressing u* chunks
revlog: clarify which revision is added to 'tested' when using cached delta
revlog: don't consider nullrev when choosing delta base
revlog: improve documentation
revlog: make calls to _isgooddelta() consistent
revlog: make clearcaches() more effective
revlog: return offset from _chunkraw()
revsetbenchmarks: support benchmarking changectx loading
ui: optionally ignore sub-options from configitems()
ui: support declaring path push urls as sub-options
util: disable floating point stat times (issue4836)
wireproto: config options to disable bundle1
wireproto: support disabling bundle1 only if repo is generaldelta

extensions

crecord: fix help bar display issue (issue5063)
histedit: add progress support
histedit: explain basics of histedit commands
histedit: pick an appropriate base changeset by default (BC)
largefiles: actions will now always have a file - drop check
largefiles: fall back to the original for change/delete conflicts
largefiles: fix commit of missing largefiles
largefiles: make prompt order deterministic
largefiles: specify where .orig files are kept
largefiles: use a context manager in _getfile
largefiles: use util.readfile in lfconvert
largefiles: use util.readfile in overrides
largefiles: fix an explicit largefile commit after a remove (issue4969)
largefiles: prevent committing a missing largefile
mq: check for reserved patch name with qimport -r (issue5033)
mq: let the user choose where .orig files are kept
rebase: add date parameter to concludenode function
rebase: better error message when rebased changes are all in destination
rebase: create a new variable to make the next patch more legible
rebase: hook afterresolvedstates
rebase: only clear rebase status after the rebase transaction has completed
rebase: pass date parameter to concludenode
rebase: prevent creating divergence
rebase: propagate extra dict from rebase source changeset
rebase: remove extra "if" from check of collapsing named branches
rebase: better way to detect non-detaching revisions (issue5044)
rebase: restore help for rebase w/o args (issue5059)
shelve: choose where .orig file locations are kept
shelve: execute checkunfinished inside wlock scope
shelve: hook afterresolvedstates
shelve: lowercase flag description
shelve: permit shelves to contain unknown files
shelve: remove redundant acquisition of wlock for sub commands of unshelve
shelve: switch to mergestate.read()
shelve: use a context manager for file I/O in listcmd
shelve: widen wlock scope of shelve for consistency while processing
shelve: widen wlock scope of unshelve for consistency while processing
unshelve: add -k as short form of --keep
unshelve: add support for custom merge tools
unshelve: shed spurious space

hgweb

hgweb: eliminate duck-typing to select hgweb or hgwebdir by command option
hgweb: load server settings from --web-conf (issue4699)
hgweb: make sure command options are set to all ui objects
hgweb: support rendering a sub-topic
hgweb: support rendering sub-topic indexes
hgweb: update canvas.width before dynamically redrawing graph (issue2683)

unsorted

addrevision: only use the incoming base if it is a good delta (issue4975)
backout: commit changeset by default (BC)
backout: fix --no-commit option (issue5054)
batchget: add support for backing up files
builddeb: add --distid option to specify Distributor ID
changegroup: introduce cg3, which has support for exchanging treemanifests
changelog: add a new method to get files modified by a changeset
checkunknownfiles: make control flow clearer
crecord: edit during hg crecord should preserve cursor position (issue5041)
debugignore: find out why a file is being ignored (issue4856)
demandimport: add support for PyPy
demandimport: don't enable when running under PyPy
destutil: use scmutil.revrange for desthistedit (issue5001)
diff: don't crash when merged-in addition was removed (issue4786)
discovery: properly filter changeset in 'peer.known' (issue4982)
dispatch: copy inferrepo attribute to alias commands
dispatch: report similar names consistently
dispatch: use print function
dispatch: use versiontuple()
dockerrpm: fix CentOS 5 RPMs (issue4977)
encoding: handle UTF-16 internal limit with fromutf8b (issue5031)
encoding: re-escape U+DCxx characters in toutf8b input (issue4927)
error: add a structured exception for unsupported merge records
extdiff: correctly handle deleted subrepositories (issue3153)
extdiff: use @command decorator to set up diff commands
filemerge: add a 'leave unresolved' option to change/delete prompts
filemerge: add a 'leave unresolved' option to regular prompts
filemerge: add support for change/delete conflicts to the ':local' merge tool
filemerge: add support for change/delete conflicts to the ':other' merge tool
filemerge: add support for change/delete conflicts to the ':prompt' tool
filemerge: default change/delete conflicts to 'leave unresolved' (BC)
filemerge: default regular prompts to 'leave unresolved' (BC)
graphlog: make node symbol templatable by ui.graphnodetemplate option
graphlog: rename glog function
hghave: support HGMODULEPOLICY for pure
localrepo: don't reference transaction from hook closure (issue5043)
lsprof: support PyPy (issue4573)
mac: fix percent-encoding of non-utf-8 characters (issue4999)
match: add option to return line and lineno from readpattern
mercurial: pass ui to extensions.load (issue5007)
mercurial: support loading modules from zipimporter
paths: do not process default-push as pushurl of default path (issue5000)
posix: work around "posix" systems without os.link available (issue4974)
run-tests: skip threading for a single test (issue5040)
scmutil: support background file closing
sslutil: fix reversed logic (issue5034)
streamclone: use backgroundfilecloser (issue4889)
streamclone: use context manager for writing files
streamclone: use read()
templates: make earlycommands and othercommands optional
templates: use canvaswidth instead of fixed width for canvas (issue2683)
test-extension: do not depend on demandimport (issue5012)
unionrepo: fix wrong rev being checked in iscensored (issue5024)
webcommands: get correct parents when comparing a removed file (issue4962)
webcommands: stop using ersatz if-else ternary operator for rename variable
webcommands: test that fctx is not None in filediff()
zeroconf: access repo on hgweb_mod properly (issue5036)

Mercurial 3.6.3 (2016-1-1)

This is a regularly-scheduled bugfix release.

cmdutil: use crecordmod.checkcurses
copyfile: add an optional parameter to copy other stat data
crecord: stop raising error.Abort if curses is not found (issue5008)
dirstate: don't write repo.currenttransaction to repo.dirstate if repo
dockerlib: short form for non-unique uid/gid for CentOS 5 compat (issue4977)
merge: while checking for unknown files don't follow symlinks (issue5027)
mq: use fallback patch name if no alpha-numeric in summary line (issue5025)
parsers: fix parse_dirstate to check len before unpacking header (issue4979)
paths: include #fragment again
push: restore old behavior of default-push (issue5000)
record: don't dereference symlinks while copying over stat data
revlog: seek to end of file before writing (issue4943)
ui: try to handle $$ more robustly in prompts (issue4970)

Mercurial 3.6.2 (2015-12-1)

This is a regularly-scheduled bugfix release.

docker: match more version of 'hg docker version' (issue4967)
localrepo.commit: check all files for resolve state (issue4972)
rebase: add returning value from pullrebase function
resolve: restore .orig only after merge is fully complete (issue4952)
share: wrap bmstore._writerepo for transaction sensitivity (issue4940)
tags: create new sortdict for performance reasons

Mercurial 3.6.1 (2015-11-9)

This is an out-of-cycle bugfix release for issues related to hooks.

changegroup: call 'prechangegroup' hook before setting up write delay
changegroup: fix the scope of a try finally
clonebundles: fix typo s/comand/command/
demandimport: fix level passed to loader of sub-modules
dirstate: fix filefoldmap incosistency on file delete
dockerlib: allow non-unique uid and gid of $DBUILDUSER (issue4657)
exchange: do not attempt clone bundle if local repo is non-empty (issue4932)
hooks: always include HG_PENDING
hooks: fix hooks not firing if prechangegroup was set (issue4934)
parsers: fix width of datalen variable in fm1readmarkers
posix: fix test-permissions regression
posix: retry on symlink race in checklink
templatefilters: try round-trip utf-8 conversion by json filter (issue4933)
wireproto: move clonebundles command from extension (issue4931)
wix: style-coal.css has been renamed

Mercurial 3.6 (2015-11-1)

Regularly scheduled feature release.

commands

bookmark: do not crash when active bookmark is forward and --date is used
bookmarks: don't deactivate on no-op update (issue4901)
clone: fix updaterev to update to latest branch changeset (issue4528)
clonebundles: support for seeding clones from pre-generated bundles
commit: abort when a committemplate is not changed (BC)
help: distinguish sections when multiple match (issue4802)
help: pass around ui to doc loader (API)
help: pass around ui to rewriter hooks (API)
merge: perform all premerges before any merges (BC)
merge: abort on file/directory case folding collisions (issue4892)
phases: return zero for no-op operations (issue4751) (BC)
resolve: perform all premerges before performing any file merges (BC)

core

cmdutil: make in-memory changes visible to external editor (issue4378)
cmdutil: stop tryimportone from using dirstateguard (BC)
context: don't hex encode all unknown 20 char revision specs (issue4890)
dirstate: batch calls to statfiles (issue4878)
parsers: fix infinite loop or out-of-bound read in fm1readmarkers (issue4888)
revlog: add an aggressivemergedelta option
revlog: change generaldelta delta parent heuristic
revset: do not fall through to revspec for literal: branch (issue4838)
revsets: makes follow() supports file patterns (issue4757) (BC)
templater: add new docheader/footer components for XML (issue4135)
templater: create string unescape helper (issue4798)
templater: do not pre-evaluate generator keyword at runsymbol (issue4868)
templater: introduce {latesttag()} function to match a pattern (issue4184)
templater: switch ctx of list expression to rev of revset() (BC)
ui: change default path fallback mechanism (issue4796)
util: use tuple accessor to get accurate st_mtime value (issue4836)
wireproto: properly parse false boolean args (BC)

extensions

histedit: use one editor when multiple folds happen in a row (issue3524) (BC)
largefiles: better handling of merge of largefiles that are not available
mq: generate patch names from first line of description
rebase: avoid losing branch commits with --keepbranch (issue4835)
rebase: fix warning about ignoring tool option on rebase continue (issue4698)
rebase: fix wrong 'no changes to commit' when using --collapse
rebase: on abort delete rebase state file no matter what
rebase: properly abort when destination is public (issue4896)
rebase: properly handle chains of markers with missing nodes
shelve: bundle using bundle2 if repository is general delta (issue4862)
shelve: delete shelve statefile on any exception during abort
shelve: restore shelved dirstate explicitly after aborting transaction
shelve: restore unshelved dirstate explicitly after aborting transaction

hgweb

hgweb: consume generator inside context manager (issue4756)
hgweb: ensure both foreground and background colors are specified (issue4872)
hgweb: overwrite cwd to resolve file patterns relative to repo (issue4568)

unsorted

builddeb: actually run make when building the deb (issue4778)
buildrpm: mkdir -p two needed directories (issue4779)
bundle2: don't try to recover from a GeneratorExit (issue4785)
bundle: extend the format of --type to support version and compression
debian: install bash completion as hg and not mercurial (issue4900)
debian: install hgk as part of mercurial-common (issue4829)
dispatch: error out on invalid -R path even if optionalrepo (issue4805) (BC)
dispatch: stop warning about EPIPE in --debug mode
graphmod: compute slow revset query once prior to reachableroots (issue4782)
highlight: add highlightfiles config option which takes a fileset (issue3005)
highlight: add option to prevent content-only based fallback
highlight: exit early on textual and unknown files (issue3005)
incoming: request a bundle2 when possible (BC)
localrepo: recreate phasecache if changelog was modified (issue4855)
lock: loop a finite number of times in trylock (issue4787)
mercurial: add debugextensions command (issue4676)
minirst: don't treat top level item as children of last item (issue4803)
notify: fix fromauthor setting for 'incoming' hook type (issue4194)
posix: shellquote do not require quoting for "+" (issue4818)
reachableroots: verify integer range of heads argument (issue4775)
revpair: restrict odd-range handling to top-level x:y expression (issue4774)
revrange: drop old-style parser in favor of revset (API)
test-merge-tools: include /usr/sbin in path for sysctl (issue4813)
traceback: allow providing a local support contact point
treemanifest: rework lazy-copying code (issue4840)
windows: read all global config files, not just the first (issue4491) (BC)
worker: restore old countcpus code (issue4869)

Mercurial 3.5.2 (2015-10-01)

Regularly-scheduled bugfix release.

hgweb: use latest mtime for caching tag (issue4814)
largefiles: restore archiving largefiles with hgweb (issue4859)
localrepo: recreate phasecache if changelog was modified (issue4855)
monoblue: fix page subtitle on help pages
unbundle: cleanly abort on unknown bundle2 feature

Mercurial 3.5.1 (2015-09-01)

Regularly-scheduled bugfix release.

convert: fix git copy file content conversions
filesets: ignore unit case in size() predicate for single value
help: fix typo familar -> familiar
help: fix typo in scripting documentation
hg: avoid auto sharing when the clone destination is remote
hgweb: fix trust of templates path (BC)
histedit: backout ebb5bb9bc32e
largefiles: ensure lfutil.getstandinmatcher() only matches standins
match: fix a case-only rename + explicit path commit on icasefs (issue4768)
parsers: fix memory leak in compute_phases_map_sets
rebase: lock the repo during the full rebase operation
revset: prevent crash caused by empty group expression while optimizing "and"
revset: prevent crash caused by empty group expression while optimizing "or"
strip: use the 'finally: tr.release' pattern during stripping
update: wlock the repo for the whole 'hg update' command
wix: avoid an abort with 'hg help -k foo'

Mercurial 3.5 (2015-07-31)

Regularly-scheduled feature release.

commands

bookmark: informs of failure to upgrade a bookmark
bookmark: remove the "touch changelog" hack
bookmarks: abort the whole push if bookmarks fails to update (BC)
bookmarks: change bookmark within a transaction
bookmarks: clear active bookmark on non-linear update
bookmarks: mark internal-only config option
bookmarks: mark internal-only option
bookmarks: name label for active bookmark correctly
bookmarks: remove unused updatecurrentbookmark function (API)
bookmarks: rename bookmarkcurrent to activebookmark (API)
bookmarks: rename current to active in variables and comments
bookmarks: rename readcurrent to readactive (API)
bookmarks: rename setcurrent to activate (API)
bookmarks: rename unsetcurrent to deactivate (API)
bookmarks: simplify iscurrent to isactivewdirparent (API)
bookmarks: use try/except/finally
branch: don't warn about branches if repository has multiple branches already
commands: use the optional badfn argument when building a matcher
commands: use try/except/finally
commit: add ui.allowemptycommit config option
commit: avoid match.files() in conditions
commit: improve --close-branch documentation
commit: mark internal-only option
commit: no longer allow empty commit with the 'force' argument (API)
config: give it an includepaths option for looking for config files
files: recurse into subrepos automatically with an explicit path
import-checker: add xargs like mode
import-checker: don't treat modules as relative one if not found
import-checker: exclude mercurial packages installed into the system path
import-checker: loop to get list of locally defined modules at first
import: cross-reference patch.fuzz option from 'hg help import'
import: cross-reference ui.patch option from 'hg help import'
import: use ui.allowemptycommit to allow empty commits
log: add a status template
patch: add 'extra' argument to makememctx
patch: add fuzz config flag (issue4697)
phases: abort the whole push if phases fail to update (BC)
phases: fix bug where native phase computation wasn't called
phases: really fix native phase computation
pull: allow a generic way to pass parameters to the pull operation
pull: document the race condition with bookmark name
pull: only list remote bookmarks if -B is used to populate pulled heads
pull: only prefetch bookmarks when using bundle1
pull: prevent race condition in bookmark update when using -B (issue4689)
pull: skip pulling remote bookmarks with bundle1 if a value already exist
pull: skip pulling remote bookmarks with bundle2 if a value already exists
push: catch and process PushkeyFailed error
push: make pushkey part advisory
push: only say we are trying to push obsmarkers when we actually try
revert: fix edition of newly added file during --interactive
summary: add a phase line (draft, secret) to the output
summary: move the parents phase marker to commit line (issue4688)
tags: support reading tags cache without populating
tags: support setting hgtags fnodes cache entries
tags: use try/except/finally
verify: check the subrepository references in .hgsubstate
verify: clarify misleading fncache message

core

dirstate: ensure mv source is marked deleted when walking icasefs (issue4760)
ignore: fix include: rules depending on current directory (issue4759)
parsers: fix buffer overflow by invalid parent revision read from revlog
revlog: add support for a callback whenever revisions are added
revlog: raise an exception earlier if an entry is too large (issue4675)
revset: fix a crash in parents() when 'wdir()' is in the set
revset: fix iteration over ordered addset composed of non-ordered operands
revset: gratuitous formating fix in keyword
revset: improves time complexity of 'roots(xxx)'
revset: port extra() to support keyword arguments
revset: reduce nesting of chained 'or' operations (issue4624)
revsetbenchmarks: fix argument parsing
revsetbenchmarks: improve error output in case of failure
revsetbenchmarks: improve revision printing
revsetbenchmarks: support combining variants with "+"
templater: do not reevaluate rawstring as template (BC)
templater: remove noop calls of parsestring(s, quoted=False) (API)
templater: rename parsestring() to unquotestring() (API)
templater: take any string literals as template, but not for rawstring (BC)
templater: tokenize decimal integer literal (issue4638) (BC)
wireproto: correctly escape batched args and responses (issue4739)

extensions

convert: add config option for disabling ancestor parent checks
convert: add support for specifying multiple revs
convert: allow customizing git remote prefix
convert: apply the appropriate phases to the destination (issue4165)
convert: fix bug with converting the same commit twice
convert: handle copies when converting from Perforce (issue4744)
convert: handle deleted files when converting from Perforce (issue4743)
convert: handle deleted files when converting from Perforce (issue4743)
convert: improve support for unusual .gitmodules
convert: support incremental conversion with hg subrepos
convert: support multiple specifed revs in git source
convert: use 'default' for specifying branch name in branchmap (issue4753)
convert: when converting from Perforce use original local encoding by default (BC)
extdiff: allow modifications in subrepos to be copied back
highlight: produce correct markup when there's a blank line just before EOF
histedit: abort rather than edit a public changeset (issue4704)
histedit: mark defaultrev option experimental
largefiles: allow the archiving of largefiles to be disabled
largefiles: avoid match.files() in conditions
largefiles: ignore hidden changesets with 'verify --large --lfa'
largefiles: pass in whole matcher to getstandinmatcher()
largefiles: restore the original converter class after lfconvert --to-normal
largefiles: use the convert extension for 'lfconvert --to-normal'
largefiles: use the optional badfn argument when building a matcher
largefiles: use try/except/finally
mq: ban \r and \n in patch names (issue4711)
mq: tweak config reading to make check-config happy
mq: use the optional badfn argument when building a matcher
mq: use ui.allowemptycommit to allow empty commits
rebase: add short -k option for --keep
rebase: remove extraneous blank at the end of file
shelve: allow --patch and --stat without --list for a single shelf
shelve: always backup shelves instead of deleting them
shelve: keep old backups if timestamp can't decide exact order of them
shelve: make maxbackup doc check-config friendly
shelve: omit incorrect 'commit' suggestion at 'hg shelve -i'
shelve: only keep the latest N shelve backups
shelve: refactor allowables to specify sets of valid operations
shelve: use try/except/finally
transplant: restore dirstate correctly at unexpected failure

hgweb

hgweb: don't dereference symbolic revision in paper & coal style (issue2296)
paper: show branch/tags/bookmarks when blaming (issue3559)
paper: show branch/tags/bookmarks when browsing (issue3559)
paper: show branch/tags/bookmarks when comparing (issue3559)
paper: show branch/tags/bookmarks when diffing (issue3559)
paper: show branch/tags/bookmarks when viewing (issue3559)

unsorted

archive: drop the leading '.' path component from the prefix (issue4634)
archive: fix changesincelatesttag with wdir()
archive: support 'wdir()'
bufferedinputpipe: remove N^2 computation of buffer length (issue4735)
bundle2: fix type of experimental option
bundle2: pull bookmark the old way if no bundle2 listkeys support (issue4701)
canonpath: fix infinite recursion
censor: make various path forms available like other Mercurial commands
censor: mark experimental option
changegroup: compute seen files as changesets are added (issue4750)
changelog: change input type of index_get_parents
changelog: fix bug in heads computation
changelog: move index_get_parents function up
changelog: update read pending documentation
check-commit: catch both patterns of double empty lines
check-commit: print limit when user has a too-long summary
check-config: add config option checker
crecord: fix issue when backgrounding editor would leave artefact
demandimport: alias builtin as builtins
demandimport: define a 'deactivated' context manager
demandimport: support importing builtins for Python 3
devel: rename 'all' to 'all-warnings' (BC)
dispatch: add support for python-flamegraph[0] profiling
dispatch: disable demandimport for the --debugger option
email: fix config default value inconsistency
exchange: support transferring .hgtags fnodes mapping
extdiff: add support for subrepos
filemerge: mark internal-only config option
formatter: add template support
formatter: mark developer options
generaldelta: mark experimental reordering option
hg: support for auto sharing stores when cloning
hgewb: disable progress when serving (issue4582)
hghave: allow adding customized features at runtime
http2: mark experimental and developer options
localrepo: eliminate requirements class variable (API)
localrepo: kill off sopener (API)
localrepo: mark format options
mail: pass ui to sslutil.wrapsocket() even if verifycert is off (issue4713)
match: add an optional constructor parameter for a bad() override
match: add optional warn argument
match: introduce boolean prefix() method
match: resolve filesets in subrepos for commands given the '-S' argument
parser: factor out function that parses right-hand side of prefix/infix ops
parser: fill invalid infix and suffix actions by None
parser: reorder infix/suffix handling to be similar to prefix/primary flow
parser: resolve ambiguity where both prefix and primary actions are defined
parser: separate actions for primary expression and prefix operator
parser: take suffix action if no infix action is defined
pathutil: hint if a path is root relative instead of cwd relative (issue4663)
phase: default to current revision if no rev is provided (issue4666)
profiler: mark developer-only config option
progress: deprecate the progress extension
progress: mark experimental option
progress: respect ui.quiet (issue4726)
revrange: build balanced tree of addsets from revisions (issue4565)
run-tests: introduce PYTHON3 boolean constant (issue4668)
run-tests: move all open-coded sys.version_info checks to PYTHON3 (issue4668)
run-tests: move unicode-to-bytes operations on paths to a helper (issue4667)
run-tests: prefer PYTHON3 constant to many version_info checks (issue4668)
run-tests: replace open-coded .decode()s on paths with a helper (issue4667)
scmutil: add an optional parameter to matcher factories for a bad() override
scmutil: use the optional badfn argument when building a matcher
setup.py: drop compatibility with Python 2.4 and 2.5 (BC)
setup: hide octal literals inside strings so they're portable (issue4554)
sshpeer: break "OutOfBandError" feature for ssh (BC)
sshpeer: run the ssh command unbuffered
ssl: prompt passphrase of client key file via ui.getpass() (issue4648)
subrepo: mark internal-only option
templatekw: display active bookmark more consistently (issue4552) (BC)
test-discovery: disable bundle2 for legacy test (issue4610)
bookmarks: abort the whole push if bookmarks fails to update (BC)
phases: abort the whole push if phases fail to update (BC)
templater: do not reevaluate rawstring as template (BC)
templater: take any string literals as template, but not for rawstring (BC)
templater: tokenize decimal integer literal (issue4638) (BC)
bookmarks: remove unused updatecurrentbookmark function (API)
bookmarks: rename bookmarkcurrent to activebookmark (API)
bookmarks: rename readcurrent to readactive (API)
bookmarks: rename setcurrent to activate (API)
bookmarks: rename unsetcurrent to deactivate (API)
bookmarks: simplify iscurrent to isactivewdirparent (API)
commit: no longer allow empty commit with the 'force' argument (API)
templater: remove noop calls of parsestring(s, quoted=False) (API)
templater: rename parsestring() to unquotestring() (API)

Mercurial 3.4.2 (2015-07-01)

changegroup: properly compute common base in changeggroupsubset (issue4736)
crecord: fix a typo introduced when moving crecord to core
crecord: fix three typos introduced while moving crecord into core
hgwebdir: avoid redundant repo and directory entries when 'web.name' is set
hgwebdir: don't allow the hidden parent of a subrepo to show as a directory
parsers: do not cache RevlogError type (issue4451)
pull: avoid race condition with 'hg pull --rev name --update' (issue4706)
templater: do not preprocess template string in "if" expression (issue4714)
templater: evaluate arguments passed to diff() appropriately
templater: parse \"...\" as string for 2.9.2-3.4 compatibility (issue4733)
transplant: only pull the transplanted revision (issue4692)
transplant: update test to use hash for remote transplant

Mercurial 3.4.1 (2015-06-01)

This is a regularly-scheduled bugfix release.

archive: always use portable path component separators with subrepos
commands: hide formatter option as EXPERIMENTAL, not as DEPRECATED
context: don't complain about a matcher's subrepo paths in changectx.walk()
convert: properly pass null ids through .hgtags (issue4678)
extensions: clear aftercallbacks after execution (issue4646)
hgweb: bring back infinite scroll in shortlog of paper style
histedit: fix --continue when rules are finished
histedit: fix --edit-plan
histedit: fix keep during --continue
histedit: fix serializing of None backupfile
histedit: fix test-histedit-edit on vfat
localrepo: pass hook argument txnid to pretxnopen hooks
localrepo: rename hook argument from TXNID to txnid (BC)
localrepo: use correct argument name for pretxnclose hooks (BC)
match: explicitly naming a subrepo implies always() for the submatcher
mergecopies: avoid slowdown from linkrev adjustment (issue4680)
rebase: check that the bookmark is still valid when restoring (issue4669)
rebase: clear merge when aborting before any rebasing (issue4661)
revbranchcache: return uncached branchinfo for nullrev (issue4683)
revset: drop magic of fullreposet membership test (issue4682)
revset: id() called with 40-byte strings should give the same results as for short strings
revset: map postfix '%' to only() to optimize operand recursively (issue4670)
ssh: capture output with bundle2 again (issue4642)
templatekw: compare target context and its parent exactly (issue4690)
templater: do not process \-escapes at parsestring() (issue4290)
templater: fix crash by passing invalid object to date() function
templater: strictly parse leading backslashes of '{' (issue4569) (BC)
transaction: really fix _addbackupentry key usage (issue4684)
transaction: separate calculating TXNID from creating transaction object
transaction: use the proper variable in '_addbackupentry' (issue4684)
util.checkcase: don't abort on broken symlinks

Mercurial 3.4 (2015-05-01)

This is a regularly-scheduled feature release.

commands

annotate: add option to annotate working-directory files
annotate: always prepare ancestry context of base fctx (issue4600)
annotate: always adjust linkrev before walking down to parents (issue4623)
annotate: prepare ancestry context of workingfilectx
bookmarks: add incoming() to replace diff() for incoming bookmarks
bookmarks: add outgoing() to replace diff() for outgoing bookmarks
bookmarks: check @pathalias suffix before available @number for efficiency
bookmarks: enhance test of showing detail about incoming/outgoing bookmarks
bookmarks: prevent divergent bookmark from being updated unexpectedly
bookmarks: reuse @number bookmark, if it refers changeset referred remotely
bookmarks: rewrite comparing bookmarks in commands.summary() by compare()
bookmarks: show detailed status about incoming/outgoing bookmarks
clone: add progress support to hardlink clones (issue3059)
commands.import: accept a prefix option
commands.push: abort when revisions evaluate to empty set (BC)
commands: add ui.statuscopies config knob
debuginstall: expand the editor path before searching for it (issue4380)
files: split reusable implementation into cmdutil for subrepo support
files: use ctx object to access dirstate
graft: allow creating sibling grafts
graft: record intermediate grafts in extras
log: display closing-branch nodes as "_" (BC)
log: fix --follow null parent not to include revision 0
log: make -fr show complete history from the given revs (BC)
log: prefer 'wctx' over 'pctx' for working context
patch.internalpatch: accept a prefix parameter
patch.internalpatch: add a default value for prefix
patch: rename pathstrip to pathtransform
pull: print "pulling from foo" before accessing the other repo
push: acquire local 'wlock' if "pushback" is expected (BC) (issue4596)
resolve: silence warning of unknown pats for -l/--list (BC)
revert: evaluate filesets against working directory (issue4497)
revert: fix --interactive on local modification (issue4576)
revert: stop marking files clean after interactive revert (issue4592)
revert: accept just -I/-X without paths or -a/-i (issue4592)
revert: apply normallookup on reverted file if size isn't changed (issue4583)
revert: restore the ability to revert across case only renames (issue4481)
status: add relative directory help text (issue3835)

core

bundle2: capture transaction rollback message output (issue4614)
bundle2: disable ouput capture unless we use http (issue4613 issue4615)
changelog: fix readpending if no pending data exist (issue4609)
dirstate: fix order of initializing nf vs f
filelog: allow censored files to contain padding data
merge: run update hook after the last wlock release
pushkey: flush pending data before running a pre-pushkey hook (issue4607)
repoview: improve compute staticblockers perf
revlog: _addrevision creates full-replace deltas based on censored revisions
revlog: add "iscensored()" to revlog public API
revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
revlog: in addgroup, reject ill-formed deltas based on censored nodes
revlog: make converting from inline to non-line work after a strip
revlog: special case expanding full-replacement deltas received by exchange
subrepo: don't write .hgsubstate lines with empty subrepo state (issue4622)
subrepo: update the help text to account for diff -I/-X gitsubrepo support
tags: establish a separate and shared cache of .hgtags filenodes
tags: change format of tags cache files
tags: have a different cache file per filter level
ui: disable revsetaliases in plain mode (BC)
util: add progress callback support to copyfiles
windows: make shellquote() quote any path containing '\' (issue4629)

extensions

color: be more conservative about setting ANSI mode on Windows (BC)
color: fix crash in cmd.exe
color: omit terminfo/win32 warning if non-interactive (issue4543)
color: support a different color mode when the pager is active
convert: adjust progress bar for octopus merges (issue4169)
histedit: add --edit-plan option to histedit
histedit: allow histedit --continue when not on a descendant (BC)
histedit: fix preventing strips during histedit
histedit: fix style of new error message
histedit: improve roll action integration with fold
histedit: fix rollup prompting for a commit message (issue4606)
largefiles: don't crash when cloning to a remote repo
largefiles: don't mangle filesets when fixing up the log matcher
largefiles: always consider updatelfiles 'checked' parameter set
largefiles: avoid infinite recursive call of openlfdirstate in overriderevert
largefiles: don't create chain of contains calls
largefiles: don't prefix standin patterns with '.hglf' when logging
largefiles: don't warn when reverting a forgotten largefile
largefiles: extract and reuse 'standin' variable in overriderevert()
largefiles: for update -C, only update largefiles when necessary
largefiles: handle logging from outside the repo
largefiles: introduce lfutil.findstorepath()
largefiles: override cmdutil.revert() instead of comands.revert()
largefiles: report the source of copied/moved largefiles in status -C
largefiles: set the extension as enabled locally after a clone requiring it
largefiles: teach log to handle patterns
largefiles: update _subdirlfs() comment
largefiles: use common function to build content of .hg_archival.txt
largefiles: use lfutil.findstorepath() when verifying a local repo
largefiles: use the core file copy logic to validate the destination path
largefiles: use the share source as the primary local store (issue4471)
mq: avoid silent failure when single patch doesn't apply (issue4604)
rebase: don't forward "source" argument to rebase (issue4633)
rebase: restore bookmark state on abort
record: edit patch of newly added files (issue4304)
record: fix adding new file with record from within a subdir (issue4626)
record: fix record with change on moved file crashes (issue4619)
shelve: acquire lock in the right order
shelve: add interactive mode
shelve: add interactive mode command line option

hgweb

hgweb: resurrect tag on diffline to fix rendering in monoblue style
hgweb: use introrev() for finding parents (issue4506)
json: implement {bookmarks} template
json: implement {branches} template
json: implement {changeset} template
json: implement {comparison} template
json: implement {fileannotate} template
json: implement {filediff} template
json: implement {helptopics} template
json: implement {help} template
json: implement {manifest} template
json: implement {shortlog} and {changelog} templates
json: implement {tags} template

unsorted

archive: change the default prefix to '' from None
archive: look for first visible revision to build repo identity (issue4591)
bundle2-localpeer: properly propagate the server output on error (issue4594)
bundle2-wireproto: properly propagate the server output on error (issue4594)
changeset_printer: display p1rev:p1node with "+" suffix for workingctx
check-commit: be more picky about detection of wrong bug tag
check-commit: check capitalization in summary lines
churn: deprecate -t option in favour of -T
crecord: fix another underbar
crecord: fix underbar style for orig_stdout
devel-warn: add a prefix to all messages ("devel-warn: ")
dirs._addpath: don't mutate Python strings after exposing them (issue4589)
dispatch: consolidate formatting of ParseErrors
dispatch: offer near-edit-distance suggestions for {file,rev}set functions
dispatch: offer suggestions of similar-named commands
extensions: support callbacks after another extension loads
get-with-headers: support parsing and pretty printing JSON
graphlog: do not bypass commands.log so that -fr works
graphlog: move comment and flag denoting revs might be unsorted
graphlog: remove too early return from getgraphlogrevs() for empty repo
lazymanifest: fix memory leak in lmiter_iterentriesnext() after 3d485727e45e
lazymanifest: fix pure hg iterkeys()
linkrev: fix issue with annotate of working copy
manifestv2: add support for reading new manifest format
manifestv2: add support for writing new manifest format
obsolete: avoid infinite loop from obs-cycle in divergence (issue4126)
record: add interactive option to the commit command
record: allow editing new files (issue4304)
record_curses: fix ui bug for newly added file
revbranchcache: add test for when the cache is not writable
revbranchcache: move out of branchmap onto localrepo
revbranchcache: populate cache incrementally
revbranchcache: store repo on the object
revbranchcache: write cache even during read operations
revrange: don't parse revset aliases as hash prefixes (issue4553)
rollback: clear resolve state (issue4593)
ssl: resolve symlink before checking for Apple python executable (issue4588)
ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
strip: properly clear resolve state with --keep (issue4593)
subrepo: add 'cat' support for git subrepos
subrepo: add basic support to hgsubrepo for the files command
subrepo: add include/exclude support for diffing git subrepos
subrepo: add status support for ignored and clean files in git subrepos
subrepo: change arguments of abstractsubrepo.init (API)
subrepos: support adding files in git subrepos
test-convert-git: show insane progress bar with octopus merge (issue4169)
test-histedit-edit.t: demonstrate qnew fails during a histedit (issue4366)
test-https: enable dummycert test only if Apple python is used (issue4500)
test-shelve: be more lenient about whitespace (issue4124)
tests: add test showing tags cache drops filtered heads (issue4550)
tests: handle deleted .hg directory (git 2.2.0 and higher) (issue4585)
trydiff: join filename with prefix only once
unbundle: acquire 'wlock' when processing bundle2 (BC) (issue4596)
webcommands: define a dict of available commands
webcommands: define web commands using a decorator

Mercurial 3.3.3 (2015-04-01)

This is a regularly-scheduled bugfix release.

adjustlinkrev: handle 'None' value as source
adjustlinkrev: prepare source revs for ancestry only once
amend: check for directory renames for both merge parents (issue4516)
annotate: reuse ancestry context when adjusting linkrev (issue4532)
dirstate: don't require exact case when adding dirs on icasefs (issue4578)
dirstate: make sure rootdir ends with directory separator (issue4557)
filemerge: clean up language in mergemarkertemplate help
forget: cleanup the output for an inexact case match on icasefs
hgweb: prevent loading style map from directories other than specified paths
mergecopies: reuse ancestry context when traversing file history (issue4537)
templates: fix "log -q" output of default style
templates: fix "log -q" output of phases style
win32: 'raise ctypes.WinError' -> 'raise ctypes.WinError()'

Mercurial 3.3.2 (2015-03-02)

An unscheduled bugfix release to fix the fix.

transaction: really disable hardlink backups (issue4546)

Mercurial 3.3.1 (2015-03-02)

This is a regularly scheduled bugfix release. It fixes a significant regression with transactions on Windows network shares.

dispatch: work around UnicodeDecodeError caused by SSLError of Python 2.7.9
hgweb: recreate old DOM structure for css in monoblue style
largefiles: access to specific fields only if largefiles enabled (issue4547)
log: fix json-formatted output when file copies are listed (issue4523)
repoview: invalidate cached changelog if _delayed changes (issue4549)
revisionbranchcache: fall back to slow path if starting readonly (issue4531)
revset: mask specific names for named() predicate
shellquote: fix missing quotes for empty string
templatekw: fix {join(bookmarks, sep)} to always show associated bookmarks
transaction: disable hardlink backups (issue4546)

Mercurial 3.3 (2015-02-01)

This is a regularly scheduled feature release with over 800 changes.

commands

add: add back forgotten files even when not matching exactly (BC)
addremove: add back forgotten files (BC)
addremove: add support for the -S flag
addremove: print relative paths when called with -I/-X (BC)
addremove: support addremove with explicit paths in subrepos
backout: add --commit option
commit: abort if --addremove is specified, but fails
commit: remove reverse search for copy source when not in parent (issue4476)
commit: propagate --addremove to subrepos if -S is specified (issue3759)
graft: show more useful status information while grafting

core

bundles: do not overwrite existing backup bundles (BC)
osx: patch .pax.gz files in pkg bundles so they extract as root (issue4081)
revset: handle hidden linkrev for file missing for head (issue4490)
revset: allow rev(-1) to indicate null revision (BC)
revset: fix ancestors(null) to include null revision (issue4512)
subrepo: don't abort in add when non-hg subrepos are present (issue4513)
cmdserver: use given streams as pipe channels like other commands
extensions: only check compatibility against major and minor versions (BC)
https: support tls sni (server name indication) for https urls (issue3090)
ignore: resolve ignore files relative to repo root (issue4473) (BC)
linkrev: handle filtered linkrev with no visible children (issue4307)
linkrev: also adjust linkrev when bootstrapping annotate (issue4305)
linkrev: use the right manifest content when adjusting linrev (issue4499)
memctx: calculate manifest correctly with newly-removed files (issue4470)
memctx: fix manifest for removed files (issue4470)
obsstore: disable garbage collection during initialization (issue4456)
subrepo: support remove with explicit paths in subrepos
subrepo: add full revert support for git subrepos
subrepo: add partial diff support for git subrepos
subrepo: add status support for ignored files in git subrepos
win32: remove Mercurial.ini file from Inno Setup installer (issue4435)

hgweb

hgweb: allow viewing diffs against p1 or p2 for merge commits (issue3904)

extensions

color: add support for colorizing git subrepo diffs
color: add missing 'dim' in _effects
convert: on svn failure, note libsvn version (issue4043)
convert: replace revision references in messages if they are >= short hashes
convert: handle LookupError in mercurial_source.lookuprev()
extdiff: reintroduce backward compatibility with manual quoting of parameters
histedit: add a test to show that issue4251 is fixed (issue4251)
largefiles: fix commit of a directory with no largefile changes (issue4330)
largefiles: use 'default' path for pulling largefiles, not 'default-push'
largefiles: enable subrepo support for add, forget, remove
largefiles: show progress when checking standin hashes in outgoing changesets
mq: smarter handling of plain headers
patchbomb: don't honor whitespace and format-changing diffopts (BC)
rebase: show more useful status information while rebasing
rebase: ensure rebase revision remains visible (issue4504)
extdiff: avoid unexpected quoting arguments for external tools (issue4463)
highlight: ignore Unicode's extra linebreaks (issue4291)
record: don't honor format-changing diffopts (issue4459)
share: add option to share bookmarks
transplant: properly skip empty changeset (issue4423)

Mercurial 3.2.4 (2015-01-01)

This is a regularly-scheduled bugfix release.

demandimport: blacklist distutils.msvc9compiler (issue4475)
largefiles: backout f72d73937853 - linear updates handle m -> a differently
largefiles: fix a spurious missing file warning with 'remove -A' (issue4053)
largefiles: fix a spurious missing file warning with forget (issue4053)
largefiles: introduce the 'composelargefilematcher()' method
largefiles: mark lfile as added in lfdirstate when the standin is added
sshpeer: more thorough shell quoting

Mercurial 3.2.3 (2014-12-18)

This is an unscheduled bugfix release containing two security fixes for issues we uncovered in both Git and Mercurial for CVE-2014-9390. Users on Mac and Windows are encouraged to upgrade.

context: stop setting None for modified or added nodes
darwin: omit ignorable codepoints when normcase()ing a file path
encoding: add hfsignoreclean to clean out HFS-ignored characters
largefiles: don't actually remove largefiles in an addremove dry run
log: fix log -f slow path to actually follow history
log: fix log revset instability
manifest: disallow setting the node id of an entry to None
pathauditor: check for Windows shortname aliases
pathauditor: check for codepoints ignored on OS X
rebase: ignore negative state when updating back to original wc parent
update: add tests for untracked local file
update: don't overwrite untracked ignored files on update

Mercurial 3.2.2 (2014-12-01)

This is a regularly-scheduled bugfix release.

changegroup: fix file linkrevs during reorders (issue4462)
hgweb: send proper HTTP response after uncaught exception
largefiles: avoid exec-bit examination on the platforms unaware of it
largefiles: don't show largefile/normal prompts if one side is unchanged
manifest: fix a bug where working copy file 'add' mark was buggy
merge: be precise about what merged into what in short desc
merge: before cd/dc prompt, check that changed side really changed
mq: fix update of headers that occur in the "wrong" order
mq: introduce insertplainheader - same naive implementation as before
mq: when adding headers in plain mode, separate them from message (issue4453)
mq: when setting message in plain mode, separate it from header (issue4453)
push: stop independent usage of bundle2 in syncphase (issue4454)
pushkey: gracefully handle prepushkey hook failure (issue4455)
rename: properly report removed and added file as modified (issue4458)
revert: look for copy information for all local modifications
revset: fix first and last for generatorset (issue4465)
templates: fix broken "less" & "more" links in paper style (issue4460)

Mercurial 3.2.1 (2014-11-11)

This is an unscheduled release to address regressions in discovery, rebase, and bookmarks.

bookmarks: fix formatting of exchange message (issue4439)
changegroup: don't store unused value on fnodes (issue4443)
convert: use git diff-tree -Cn% instead of --find-copies=n% for older git
discovery: indices between sample and yesno must match (issue4438)
discovery: limit 'all local heads known remotely' to real 'all' (issue4438)
extdiff: quote user-supplied options passed to shell
hgweb: fix a crash when using web.archivesubrepos
mail: actually use the verifycert config value
rebase: fix rebase with no common ancestors (issue4446)
serve: correct meta variable of --daemon-pipefds option
templater: don't overwrite the keyword mapping in runsymbol() (issue4362)

Mercurial 3.2 (2014-11-01)

This is a quarterly feature release.

commands

amend: abort early if no username is configured with evolve enabled (issue4211)
amend: fix amending rename commit with diverged topologies (issue4405)
annotate: rewrite long short-circuit statement by if-elif-else
bookmark: make the search for divergent names more robust
bookmarks: allow pushkey if new equals current
bookmarks: explicitly track identical bookmarks
bookmarks: fix divergent bookmark path normalization
bookmarks: inform transaction-related hooks that some bookmarks were moved
branches: include active, closed and current flags in template output
clone: copy '.hg/bookmarks' during copy clone
clone: explicitly push bookmarks when cloning from local to remote
clone: fix copying bookmarks in uncompressed clones (issue4430)
clone: for local clones, copy branchcache from the right location (issue4286)
clone: for local clones, copy over filtered branchcaches as well (issue4286)
clone: properly mark branches closed with --uncompressed (issue4428)
clone: provide sample username = config entry in .hg/hgrc (issue4359)
commit: correctly check commit mutability during commit --amend
commit: add customizable committemplate config
config: give more fine-tuned sample hgrcs to this command
config: highlight parse error caused by leading spaces (issue3214)
files: add new command unifying locate and manifest functionality
graft: allow regrafting ancestors with --force (issue3220)
graft: make --force apply across continues (issue3220)
help: document that default hgweb style is called paper (issue4373)
help: update help for hgweb template and style (issue4373)
import: let --exact 'work' with --no-commit (issue4376)
locate: deprecate in favor of files
log: allow patterns with -f
log: do not hide the public phase in debug mode (BC)
log: rewrite default template to use labels (issue2866)
log: show phase in hg log -v with the phase template
merge-tools: add a 'premerge=keep-merge3' config option
merge: use bid merge by default (BC)
merge: support three labels when using conflict markers
parents: deprecate the parents commands
pull: perform bookmark updates in the transaction
push: update bookmarks within the remote lock
push: wrap local phase movement in a transaction
pushbookmark: do not attempt to update bookmarks if the push failed (BC)
status: make 'hg status --rev' faster when there are deleted files
tag: properly abort if an unknown or ignored .hgtags is present

core

alias: expand "$@" as list of parameters quoted individually (BC) (issue4200)
dirstate: add exception when calling setparent without begin/end (API)
dirstate: wrap setparent calls with begin/endparentchange (issue4353)
hook: protect commit hooks against stripping of temporary commit (issue4422)
i18n: detect UI language without POSIX-style locale variable on Windows (BC)
localrepo: remove the 'pull' method (API)
localrepo: remove the 'push' method (API)
posix: implement readpipe using non-blocking I/O (issue4336)
revset: fix O(2^n) perf regression in addset
revset: have rev() drop out-of-range or filtered rev explicitly (issue4396)
setdiscovery: limit the size of all sample (issue4411)
ssl: only support TLS (BC)
ssl: only use the dummy cert hack if using an Apple Python (issue4410)
templater: fix ifcontains when list is a string (issue4399)

extensions

convert: add support for deterministic progress bar on scanning phase
convert: add support to detect git renames and copies
eol: fix crash when handling removed files
histedit: add "roll" command to fold commit data and drop message (issue4256)
largefiles: add examination of exec bit in "hg status --rev REV" case
largefiles: keep largefiles from colliding with normal one during linear merge
largefiles: restore R status of removed largefiles correctly at "hg rollback"
largefiles: restore standins from non branch-tip parent at rollback correctly
largefiles: unlink standins not known to the restored dirstate at rollback
mq: write '# Parent ' lines with two spaces like export does (BC)
mq: write headers for new HG patches in the same order as export (BC)
shelve: don't delete "." when rebase is a no-op (issue4398)

hgweb

hgweb: disable SSLv3 serving (BC)
hgweb: refresh repository using URL not path (issue4323)

Mercurial 3.1.2 (2014-10-01)

This is a regularly-scheduled bugfix release.

commit: catch changed exec bit on files from p1 (issue4382)
diff: document the nobinary option
dispatch: check shell alias again after loading extensions (issue4355)
dispatch: make "_checkshellalias" reusable regardless of adding aliases
help: fix typo in log examples
help: mention mode in hg log --removed help (issue4381)
hgweb: fail if an invalid command was supplied in url path (issue4071)
hgweb: refresh hgweb.repo on phase change (issue4061)
histedit: abort gracefully on --continue/--abort with no state
keepalive: fix how md5 is used
mq: examine "pushable" of already applied patch correctly
mq: pop correct patches when changing pushable-ness of already applied ones
mq: report correct numbers for changing "number of guarded, applied patches"
mq: use "mq.applied[i].name" instead of "mq.appliedname(i)" for safety
revset: add an optimised baseset.contains (issue4371)
templater: fix precedence of --style and --template options

Mercurial 3.1.1 (2014-09-01)

This is a regularly-scheduled bugfix release.

changectx: ancestor should only prefer merge.preferancestor if it is a revision
color: pass on key error for win32 (issue4298)
config: exit non zero on non-existent config option (issue4247)
context: call normal on the right object
debugobsolete: catch ValueError that may be raised by obsstore.create
discovery: prevent crash on unknown remote heads with old repo (issue4337)
graft: fix collision detection with origin revisions that are missing
help: add pad function to template help
help: only call doc() when it is callable
hgweb: avoid config object race with hgwebdir (issue4326)
histedit: preserve initial author on fold (issue4296)
import: show warning message for merge changesets
incoming: don't request heads that already are common
largefiles: don't override matchandpats for always matchers (issue4334)
largefiles: drop setting lfstatus in overridelog (issue4334)
largefiles: in overridelog, use non-lf matcher for patch generation (issue4334)
log: use correct phase info for parent field (issue4347)
merge: show the scary multiple ancestor hint for merges only, not for updates
obsstore.create: add a simple safeguard against cyclic markers
repoview: filter tags to non-existent nodes from blockers (issue4328)
repoview: fix typo in repoview.changelog
revset: bookmark revset interprets 'literal:' prefix correctly (issue4329)
unbundle: don't advance bookmarks (issue4322) (BC)

Mercurial 3.1 (2014-08-01)

Core features

backout: accept '--edit' like other commands creating new changeset
bookmarks: improve the bookmark help (issue4244)
commit: make commit message shown in text editor customizable by template
config: allow 'user' in .hgrc ui section (issue3169)
conflict markers: customise local/other name for various command (graft, update, rebase, ...) (BC)
diff: add nobinary config to suppress git-style binary diffs
discovery: if a push would create a new head, mention the bookmark name if any
filemerge: add an internal:tagmerge merge tool
filemerge: add a [ui] mergemarkers option to use detailed merge marker.
gpg: accept '--edit' like other commands creating new changeset
help: suggest keyword search when no topic is found
import: add --partial flag to create a changeset despite failed hunks
resolve: print message when no unresolved files remain (issue4214)
resolve: print warning when no work performed (issue4208)
templatefilter: add splitlines function
templatekw: add 'currentbookmark' keyword to show current bookmark easily
templatekw: add 'subrepos' keyword to show updated subrepositories
templater: introduce startswith function
templater: introduce word function
templates: escape NUL bytes in jsonescape (issue4303)
update: introduce --tool for controlling the merge tool
update: show message when a bookmark is activated by update
update: when deactivating a bookmark, print a message
version: show enabled extensions (issue4209)

Extension features

convert: detect removal of ".gitmodules" at git source revisions correctly
convert: drastically speed up git conversions
convert: mercurial source: convert global tags only - not local tags
convert: only consider shamap revisions converted if they still exists
convert: update the transplant, rebase and graft references in 'extra'
largefiles: show also how many data entities are outgoing at "hg outgoing"
mergetools.hgrc: add minimal configuration for editmerge
pager: add attend-<command> option
patchbomb: includes series information in the header
purge: add options for deleting only files or only directories
qfold: allow to specify '--message/'--logfile' and '--edit' at the same time
qimport: record imported revs incrementally (issue3874)
qrefresh: allow to specify '--message/'--logfile' and '--edit' at the same time
shelve: accept '--edit' like other commands creating new changeset
shelve: add -l|--list support for bash completion
strip: drop -b/--backup option (BC)

Fixes

bookmarks: avoid deleting primary bookmarks on rebase
branch: add debug message for branch cache write failure
bugzilla extension: stop trying to cache setup across hook invocation
filemerge: use non-minimal conflict marker regions (BC)
help: always show command help with -h (issue4240)
histedit: respect revsetalias entries (issue4311)
largefiles: avoid unnecessary creation of .hg/largefiles when opening lfdirstate
largefiles: include largefiles when doing log on a directory (issue4241)
largefiles: use "normallookup", if "mtime" of standin is unset
log: allow revset for --follow to be lazily evaluated
log: do not use exact matcher for --patch --follow without file (issue4319)
log: make --patch --follow work inside a subdirectory
p4: accept changesets with no description (issue4282)
resolve: keep wlock while resolving
revset: maintain ordering when subtracting from a baseset (issue4289)
revset: optimize baseset.sub (issue4313)
strip: remove bookmarks after strip succeed (issue4295)
vim: use try catch in vim plugin to avoid conflicts

Experimental features

bundle2: add pushkey support
bundle2: fix bundle2 pulling all revs on empty pulls
bundle2: pull phase data alongside changesets (when enabled)
bundle2: use bundle2 to push phases (when enabled)

Mercurial project

build: initial support for in-tree autobuilding recipes
buildrpm: include release version in .tar.gz name
make: add a basic osx mpkg target
packaging: move output directory from build/ to packages/
setup: fixed for Pythons which don't have a CFLAGS
setup: make Xcode 5.1 check less specific

Mercurial 3.0.2 (2014-07-01)

This is a regularly-scheduled bugfix release.

cmdutil: add copy-filtering support to duplicatecopies
hgweb: avoid initialization race (issue4280)
keyword: suppress keyword expansion for internal merge
match: make glob '**/' match the empty string
parsers.c: fix a couple of memory leaks
push: restore contents of HG_URL for hooks (issue4268)
rebase: fix bug that caused transitive copy records to disappear (issue4192)
repoview: do not crash when localtags refers to non existing revisions

Mercurial 3.0.1 (2014-06-01)

This is a regularly-scheduled bugfix release.

alias: change return code of bad definition to 255
alias: fix loss of non-zero return code in command aliases
alias: handle shlex error in command aliases
bookmarks: properly align multi-byte characters
bugzilla: support Bugzilla 4.4.3+ API login token authentication (issue4257)
bundle2: fix bundle2 pulling all revs on empty pulls
bundle2: fix configuration name mismatch
changelog: ensure changelog._delaybuf is initialized
color: don't fail on error messages when no curses (issue4237)
exchange: propagate arguments to the _getbundleextrapart function
localrepo: prevent leak of transaction object (issue4258)
proxy: remove unneeded _set_hostport for compatibility with Python 2.7.7rc1
setup.py, make: avoid problems with outdated, existing hgext/__index__.py*
subrepo: avoid sanitizing ".hg/hgrc" in meta data area for non-hg subrepos
subrepo: invoke "_sanitize()" also after "git merge --ff"
subrepo: make "_sanitize()" take absolute path to the root of subrepo
subrepo: make "_sanitize()" work
subrepo: normalize path in the specific way for problematic encodings
templates: fix ifcontains against sets with length > 1 (issue4259)
win32: backout 1a9ebc83a74c

Mercurial 3.0 (2014-05-01)

This is a regularly-scheduled quarterly feature release. Unlike other 3.0 software releases, this is simply 2.9 + .1, so it should be the usual pain-free upgrade.

Core features

cat: support explicit paths in subrepos
cmdserver: allow starting server without repository
clone: abort if default destination has no meaningful name (BC)
clone: put streaming clones in a transaction
color: add debugcolor command (issue4094)
color: allow color keywords to be used directly in template
commands: add -T as alternative to --template
commands: hg debuginstall checks missing templates (issue4151)
commit: --edit/-e allows editing commit message supplied through other means
config: add initial implementation of --edit (with --global and --local flags)
debuginstall: add Python information to debuginstall output (issue4128)
demandimport: support HGDEMANDIMPORT=disable to disable demandimport
hgweb: add metadata to atom and rss feed entries
http: reuse authentication info after the first failed request (issue3567)
log: change implementation to use graphlog code
push: provide a hint when no paths are configured (issue3692)
require: provide a link to a wiki page as well as suggesting upgrade
revset: new implementation with incremental evaluation
revset: try to handle hyphenated symbols if lookup callback is available
revset: add 'only()' revset
sshpeer: only print out 'running ssh' messages in debug mode (BC)
template: add ifcontains template function
template: add pad function for padding output
template: add revset() template function
template: add shortest(node) template function
template: add flexible -T option
win32: improve the performance of win32.unlink() over CIFS

Extension features

blackbox: log events related to branch cache
convert: avoid updating tags when there is nothing new
convert: compare tags from all heads instead of just one
convert: replace old sha1s in the description
extensions: mark win32text deprecated
extensions: remove interhg
extensions: remove the inotify extension (BC)
histedit: select the lowest rev when looking for a root in a revset (BC)
journal: report parsing errors on recover/rollback (issue4172)
qimport: allow importing URLs

Fixes

backout: don't limit ancestry check to a single ancestor
backout: improve confusing 'cannot backout change on a different branch' abort
caches: invalidate store caches when lock is taken
cmdserver: forcibly use L channel to read password input (issue3161)
cmdserver: reload mq on each runcommand request to avoid corruption
diff: use second filename for --stat reporting on git patches (issue4221)
dirstate: report bad subdirectories as match.bad, not just a warning (BC)
extensions: use normpath to allow trailing '\' on Windows (issue4187)
fncache: clean up fncache during strips
largefiles: changed overridelog to work with graphlog
largefiles: don't prompt when one side of merge was changed but didn't change
largefiles: remove directories emptied after their files are moved (issue3515)
parsers: fail fast if Python has wrong minor version (issue4110)
phases: apply publishing enforcement for "serve" source
revlog: deal with chunk ranges over 2G on Windows (issue4215)
setup.py: fix C extension compilation issue with OS X 10.9 and Xcode 5.1
subrepo: check return code for git push (issue4223)

Experimental features

bundle2: experimental support for bundle2
merge: experimental implementation of bid merge
merge: tell when .ancestor picks one of multiple common ancestors heads

Mercurial 2.9.2 (2014-04-01)

This is a regularly-scheduled bugfix release.

amend: save commit message into ".hg/last-message.txt"
backout: correct commit status of no changes made (BC) (issue4190)
backout: document return code of merge conflict
commit: create new amend changeset as secret correctly for "--secret" option
commit: propagate --secret option to subrepos (issue4182)
convert: more clear documentation of the 'include' default of a 'include .'
dispatch: only do import(debugger) when a debugger is requested
log: solves bug regarding hg log -r 0:null (issue4039)
hg: introduce "wirepeersetupfuncs" to setup wire peer by extensions (issue4109)
hg: use "os.path.join()" to join path components which may be empty (issue4203)
histedit: save manually edited commit message into ".hg/last-message.txt"
localrepo: save manually edited commit message as soon as possible
merge: fix lack of "%s" in format string causing TypeError at runtime
paper: overlapping of section title on help pages (issue4051)
phase: say "Returns 0" instead of "Return 0" like other command help
qfold: save manually edited commit message into ".hg/last-message.txt"
qnew: save manually edited commit message into ".hg/last-message.txt"
rebase: use "commitforceeditor" instead of "ui.edit()" for "--collapse"
revset: document the regular expression support for tag(name)
subrepo: add trailing newlines to warnings
subrepo: convert matched string to integer before comparing Git version
subrepo: only retrieve the first two components of the Git version
tag: save manually edited commit message into ".hg/last-message.txt"
templater: apply "stringify()" on sub expression to get string correctly
templater: avoid recursive evaluation of string literals completely
templater: make strings in template expressions be "string-escape"-ed correctly
templater: raise error for unknown function

Mercurial 2.9.1 (2014-03-01)

This is a regularly-scheduled bugfix release.

coal: hgweb style adds extra blank line in file view (issue4136)
hg.openpath: use url.islocal to tell if the path is local (issue3624)
hgweb: hack around mimetypes encoding thinko (issue4160)
hooks: only disable/re-enable demandimport when it's already enabled
merge: add "other" file node in the merge state file
merge: audit the right destination file when merging with dir rename
merge: don't overwrite file untracked after remove, abort with 'untracked files'
merge: record the "other" node in merge state
pathencode: eliminate signed integer warnings
pull: close peer repo on completion (issue2491) (issue2797)
purge: avoid duplicate output for --print (issue4092)
rebase: do not try to reactivate deleted divergent bookmark
resolve: use "other" changeset from merge state (issue4163)
verify: do not prevent verify repository containing hidden changesets

Mercurial 2.9 (2014-02-01)

This is a regularly-scheduled feature release.

Core features

backout: add a message after backout that need manual commit
bash_completion: add global support for -B|--bookmark
bash_completion: add global support for -b|--branch
bookmarks: allow push -B to create a new remote head (issue2372)
date: allow %z in format (issue4040)
hgweb: infinite scroll support for coal, gitweb, and monoblue styles
patch: add support for git delta hunks
url: added authuri when login information is requested (issue3209)

Performance improvement

backout: avoid update on simple case
branchmap: cache open/closed branch head information
cat: increase perf when catting single files
changectx: increase perf of walk function
strip: add faster revlog strip computation

Extension features

bash_completion: add completion for deleting a shelve
convert: use branchmap to change default branch in destination (issue3469)
record: --user/-u now works with record when ui.username not set (issue3857)
subrepo: check phase of state in each subrepositories before committing

Fixes

aliases: make "_checkshellalias()" invoke "findcmd()" with "strict=True"
bisect: --command without --noupdate should flag the parent rev it tested
clone: do not turn hidden changeset public on publishing clone (issue3935)
diff: search beyond ancestor when detecting renames
push: properly move phase boundary when no changeset are exchanged (issue3786)
rebase: abort cleanly when we encounter a damaged rebasestate (issue4155)
rebase: do not crash in panic when cwd disapear in the process (issue4121)
record: re-enable whitespace-ignoring options
relink: abort earlier when on different devices (issue3916)
subrepo: make it possible to update to hidden subrepo revisions
templater: selecting a style with no templates does not crash (issue4140)
update: consider successor changesets for a bare update
update: consider successor changesets when moving active bookmark

Mercurial 2.8.2 (2014-01-01)

This is a regularly-scheduled bugfix release.

fileset, revset: do not use global parser object for thread safety
hgweb: avoid initialization race (issue3953)
mpatch: rewrite pointer overflow checks

Mercurial 2.8.1 (2013-12-01)

This is a regularly-scheduled bugfix release.

bookmarks: consider successor changesets when moving bookmark (issue4015)
contrib: don't mention obsolete graphlog extension in mercurial.ini
contrib: promote strip extension over MQ in sample.hgrc
contrib: stop mentioning obsolete graphlog extension in sample.hgrc
convert: fix svn crash when svn.ra.get_log calls back with orig_paths=None
help: fix backwards bisect help example
help: use progress instead of mq as in 'hg help config' example
hgk: fix tag list parser (issue4101)
hgweb: ignore non numeric "revcount" parameter values (issue4091)
histedit: hold wlock and lock while in progress
largefiles: cache largefiles for update, also without printmessage
largefiles: don't crash on 'local renamed directory' actions
merge: move forgets to the beginning of the action list
minirst: do not interpret a directive as a literal block
minirst: find admonitions before pruning comments and adding margins
obsolete: stop doing membership test on list
parse_index2: fix crash on bad argument type (issue4110)
phase: better error message when --force is needed
rebase: fix rebase aborts when 'tip-1' is public (issue4082)
rebase: fix working copy location after a --collapse (issue4080)
share: fix unshare calling wrong repo.init() method
shelve: fix bad argument interaction with largefiles (issue4111)
shelve: unshelve using an unfiltered repository
strip: fix last unprotected mq reference (issue4097)
strip: hold wlock for entire duration
subrepo: sanitize non-hg subrepos
templater: fix escaping in nested string literals (issue4102)
templater: makes branches work correctly with stringify (issue4108)
templater: only recursively evaluate string literals as templates (issue4103)
unshelve: add tests for unknown files
unshelve: don't commit unknown files during unshelve (issue4113)
util: url keeps backslash in paths
util: warn when adding paths ending with \

Mercurial 2.8 (2013-11-01)

This is a regularly scheduled feature release.

Core features

hgweb: add revset syntax support to search
hgweb: always run search when a query is entered (BC)
hgweb (paper theme): add infinite scrolling to graph
hgweb: show full date in rfc822 format in tooltips at shortlog page
proxy: allow wildcards in the no proxy list (issue1821)
pull: for pull --update with failed update, print hint if any
rebase: preserve working directory parent (BC)
sslutil: add a config knob to support TLS (default) or SSLv23 (BC) (issue4038)
templatefilters: add short format for age formatting
templater: support using templates with non-standard names from map file
update: add error message for dirty non-linear update with no rev
addremove: don't do full walks
log: make file log slow path usable on huge repos
subrepo: let the user choose to merge, keep local or keep remote subrepo revisions

Extension features

convert-internals: introduce hg.revs to replace hg.startrev and --rev with a revset
convert-internals: update source shamap when using filemap, just as when not using filemap
factotum: clean up keychain for multiple hg repository authentication
histedit: abort if there are multiple roots in "--outgoing" revisions
mq: extract strip function as its standalone extension (issue3824)
mq: look for modified subrepos when checking for local changes
rebase: remove bailifchanged check from pullrebase (BC)
shelve: add a shelve extension to save/restore working changes

Fixes

pager: honour internal aliases
patch: ensure valid git diffs if source/destination file is missing (issue4046)
patch: Fix nullid for binary git diffs (issue4054)
progress: stop getting stuck in a nested topic during a long inner step
rebase: handle bookmarks matching revset function names (issue3950)
rebase: preserve active bookmark when not at head (issue3813)
rebase: preserve metadata from grafts of changes (issue4001)
rebase: fix selection of base used when rebasing merge (issue4041)
ui: send password prompts to stderr again (issue4056)

Mercurial 2.7.2 (2013-10-01)

Regularly scheduled bugfix release. This fixes significant regressions from 2.7 in push/pull performance and SSL negotiation.

bundle: fix performance regression when bundling file changes (issue4031)
generaldelta: initialize basecache properly
help: use full name of extensions to look up them for keyword search
histedit: abort if there are multiple roots in "--outgoing" revisions
histedit: add more detailed help about "--outgoing"
histedit: suggest "histedit --abort" for inconsistent histedit state
httpclient: apply upstream revision da7579b034a4 to fix SSL problems (issue4038)
rebase: catch RepoLookupError at restoring rebase state for abort/continue
rebase: catch RepoLookupError at restoring rebase state for summary
repoview: have unfilteredpropertycache using the underlying cache
repoview: make propertycache.setcache compatible with repoview
revset: fix wrong keyword() behaviour for strings with spaces
sslutil: backed out changeset 074bd02352c0 (issue4038)
strip: set current bookmark to None if stripped

Mercurial 2.7.1 (2013-09-03)

Regularly scheduled bugfix release.

rebase: handle bookmarks matching revset function names (issue3950)
tags: write tag overwriting history also into tag cache file (issue3911)

Mercurial 2.7 (2013-08-01)

Regularly scheduled feature release. This release contains an important fix for a merge ancestor calculation regression in the 2.6 series.

Core features

bookmarks: allow bookmark command to take multiple arguments
commands: add checks for unfinished operations (issue3955)
commit: enable --secret option
hgweb: run search instead of showing wrong error for ambigious identifier
import: cut commit messages at --- unconditionally (issue2148)
log: add a log style that is default+phase (issue3436)
paper: add line wrapping switch to file source view
paper: code selection without line numbers in file source view
paper: highlight line which is linked to in source view
revert: make backup when unforgetting a file (issue3423)
rollback: mark as deprecated
sslutil: force SSLv3 on Python 2.6 and later (issue3905)
summary: augment output with info from extensions
templater: add strip function with chars as an extra argument
log: show style list when unknown style specified
tip: deprecate the tip command
update: add tracking of interrupted updates (issue3113)

Extension features

churn: split email aliases from the right
histedit: refuse to edit history that contains merges (issue3962)
convert: improve error handling when parsing splicemap (issue2084)
convert: support paths with spaces in splicemap (issue3844)

Fixes

ancestor: Fix a reference counting bug in the C version (issue3984)
bookmarks: update only proper bookmarks on push -r/-B (issue 3973)
bookmarks: pull --update updates to active bookmark if it moved (issue4007)
changegroup: fix fastpath during commit
checklink: work around sshfs brain-damage (issue3636)
convert: catch empty origpaths in svn gettags (issue3941)
convert: fix bad conversion of copies when hg.startrev is specified
convert: handle changeset sorting errors without traceback (issue3961)
hgweb: fix incorrect way to count revisions in log (issue3977)
histedit: don't clobber working copy on --abort if not on histedit cset
largefiles: overridematch() should replace the file path instead of extending (issue3934)
progress: respect HGPLAIN
rebase: allow aborting when descendants detected
rebase: continue abort without strip for immutable csets (issue3997)
rebase: don't clobber wd on --abort when we've updated away (issue4009)
revlog: handle hidden revs in _partialmatch (issue3979)

Mercurial 2.6.3 (2013-07-01)

This is a regularly-scheduled bugfix release.

commit: amending with --close-branch (issue3445)
doc: make it easier to read how to enable extensions
doc: reword "config file" to "configuration file"
docs: change description to synopsis in hgrc.5
histedit: raise ImportError when demandloading is enabled
pathencode: fix hashmangle short dir limit (issue3958)
update: remove .hg/graftstate on clean (issue3970)

Mercurial 2.6.2 (2013-06-01)

This is a regularly-scheduled bugfix release.

amend: complain more comprehensibly about subrepos
blackbox: fix blackbox causing exceptions in tests
blackbox: fix recording exit codes (issue3938)
dirstate: don't overnormalize for ui.slash
graft: refuse to commit an interrupted graft (issue3667)
help: fix role/option confusion in RST
help: stop documentation markup appearing in generated help

Mercurial 2.6.1 (2013-05-14)

This is an unscheduled bugfix release to address some minor regressions in the 2.6 release.

convert: fix bug of wrong CVS path parsing without port number (issue3678)
help/config: note 64-bit Windows registry key used with 32-bit Python
hfs+: rewrite percent-escaper (issue3918)
hgignore: fix regression with hgignore directory matches (issue3921)
highlight: fix page layout with empty first and last lines
largefiles: check existence of the file with case awareness of the filesystem
largefiles: check unknown files with case awareness of the filesystem
pathencode: grow buffers to increase safety margin
revert: ensure that copies and renames are honored (issue3920)
subrepo: open files in 'rb' mode to read exact data in (issue3926)
windows: check target type before actual unlinking to follow POSIX semantics

Mercurial 2.6 (2013-05-01)

$/!\$ This release has known issues with some ignore rules (issue3921) and subrepos on Windows (issue3926)

This is a regularly scheduled feature release.

Core features

amend: support amending merge changesets (issue3778)
archive: raise error.Abort if the file pattern matches no files
bash_completion: allow remove to complete normal files
bookmarks: allow (re-)activating a bookmark on the current changeset
bookmarks: don't allow integers as bookmark/branch/tag names
bookmarks: moving the active bookmark deactivates it
bookmarks: resolve divergent bookmarks when moving active bookmark forward
bookmarks: resolve divergent bookmark when moving across a branch
commit: show active bookmark in commit editor helper text
config: discard "%unset" values defined in the other files read in previously
dates: support 'today' and 'yesterday' in parsedate (issue3764)
date: understand "now" as a shortcut for the current time
dispatch: print 'abort:' when a pre-command hook fails (BC)
dispatch: return status is 1 and a nice error message is printed when a user intervention is required (BC)
export: clobber files with -o (BC) (issue3652)
export: export working directory parent by default
export: show 'Date' header in a format that also is readable for humans
filesets: add eol predicate
hgweb: generate documentation as HTML (previously as text)
hgweb: teach archive how to download a specific directory or file
merge: apply non-interactive working dir updates in parallel
mergetools: avoid losing the merged version with meld
mergetools: vimdiff issues a warning explaining how to abort
sslutil: abort if peer certificate is not verified for secure use
summary: make "incoming" information sensitive to branch in URL (issue3830)
summary: make "outgoing" information sensitive to branch in URL (issue3829)
summary: show active bookmark even if not at current changeset
templatekw: add default styles for hybrid types (issue3887)
templater: add get() function to access dict element (e.g. extra)
addremove: improve performance
ancestor: a new algorithm that is faster for nodes near tip
dirstate: performance improvements
grep: use re2 if possible
parsers: a C implementation of the new ancestors algorithm
scmutil: rewrite dirs in C, use if available
tags: update tag type only if tag node is updated (issue3911)

Extension features

blackbox: new extension
hgk: add support for phases
hgk: don't use fixed format for dates
hgk: update backgroud colour when Ttk is available
histedit: allow "-" as a command file
histedit: handle multiple spaces between action and hash (issue3893)
histedit: make "hg histedit" sensitive to branch in URL
histedit: properly handle --continue on empty fold
histedit: support editing of the first commit (issue3767)
interhg: feature integrated in core. Extension removed.
largefiles: don't cache largefiles for pulled heads by default
largefiles: improve reuse of HTTP connections
largefiles: introduce lfpull command for pulling missing largefiles
largefiles: introduce pulled() revset expression for use in --lfrev
largefiles: introduce pull --lfrev option
largefiles: quiet (and document) undefined name errors (issue3886)
largefiles: stat all largefiles in one batch before downloading
largefiles: use repo.wwrite for writing standins (issue3909)
mq: comply with filtering when injecting fake tags (issue3812)
mq: do not inherit settings form base repo in mqrepo (Fixes issue2358)
rebase: check no-op before checking phase (issue3891)
rebase: fix --collapse when a file was added then removed
smtp: use 465 as default port for SMTPS
smtp: verify the certificate of the SMTP server for STARTTLS/SMTPS
subrepo: clone of git sub-repository creates incorrect git branch (issue3870)
subrepo: do not push mercurial subrepos whose store is clean
subrepo: fix exception on revert when "all" option is omitted

Fixes

annotate: increase refcount of each revision correctly (issue3841)
applyupdates: assign variable before we try to use it (issue3855)
bookmarks: allow moving a bookmark forward to a descendant
bookmarks: fix bug that activated a bookmark even with -r passed
case collision: Avoid unexpectd case folding issue during merge that should succeed (Bts: issue3452)
commit: allow closing "non-head" changesets
convert/git: catch errors from modern git-ls-remote (issue3428)
destroyed: invalidate phraserevs cache in all case (issue3858)
diff: fix binary file removals in git mode
http: avoid large text dumps when remote url is not a repo
import: don't rollback and unrelated transaction on failed import --exact (issue3616)
log: fix behavior with empty repositories (issue3497)
outgoing: fix possible filtering crash in outgoing (issue3814)
pager: catch ctrl-c on exit (issue3834)
record: abort on malformed patches instead of crashing
revset: change ancestor to accept 0 or more arguments (issue3750)
revset: don't abort when regex to tag() matches nothing (issue3850)
scheme: don't crash on invalid URLs
setup: make error message for missing Python headers more helpful
sshpeer: store subprocess so it cleans up correctly
win32: use explicit path to "python.exe" only if it exists

Mercurial 2.5.4 (2013-04-04)

This fixes an urgent regression in merging with subrepos introduced in 2.5.

applyupdates: assign variable before we try to use it (issue3855)
setup.py: properly discard trust warning

Mercurial 2.5.3 (2013-04-01)

hgweb: show correct error message for i18n environment
localrepo: always write the filtered phasecache when nodes are destroyed (issue3827)
rebase: restore active bookmark after rebase --continue
setup.py: add metadata to register package to PyPI
setup.py: ignore warnings from obsolete
zsh_completion: fix trailing carriage return spoiling tag completion

Mercurial 2.5.2 (2013-03-01)

bundle: treat branches created newly on the local correctly (issue3828)
largefiles: avoid rechecking hashes when avoidable
largefiles: don't let update leave wrong largefiles in wd if fetch fails
largefiles: fix off-by-one error on pull --all-largefiles
largefiles: fix download of largefiles from an empty list of changesets
largefiles: missing largefiles should not be committed as removed
mergetools: vimdiff issue a warning explaining how to abort
outgoing: fix possible filtering crash in outgoing (issue3814)
rebase: fix potential infinite loop in complex rename situation (issue3843)

Mercurial 2.5.1 (2013-02-08)

This is a non-scheduled bugfix release.

hgk: support the old way of getting the current Ttk theme (issue3808)
hgweb.cgi: fix internal WSGI emulation (issue3804)
hgweb: make 'summary' work with hidden changesets (issue3810)
incoming: fix incoming when a local head is remotely filtered (issue3805)
largefiles: don't crash when trying to find default dest for url without path
rebase: derive node from target rev (issue3802)

Mercurial 2.5 (2013-02-01)

This is a regularly-scheduled feature release.

Core features

branchmap: improved performances
bundle: add revset expression to show bundle contents (issue3487)
dirstate: implement unix statfiles in C
hgweb: add (Atom) subscribe links to the repository index
hgweb: add "URL breadcrumbs"
hgweb: add branches RSS and Atom feeds
hgweb: secret changeset are excluded from html view (3614 )
serve: use chunked encoding in hgweb responses
pathencode: implement both basic and hashed encoding in C
subrepo: append subrepo path to subrepo error messages
validate: check for spurious incoming filelog entries
hgweb: allow hgweb's archive to recurse into subrepos

Changeset Evolution

Major progress toward ChangesetEvolution were done.

hidden changesets are now properly ignored by all commands
a global --hidden flag is added to give access to hidden changesets
rewriting a changeset but not its descendants is now allowed; this leaves unstable changeset behind
we now detect *divergent* changesets. The third and last kind of obsolescence related troubles. divergent() revset is added
a troubled() revset have been added
branchmap for of *visible* and *served* changeset are now cached on disk. This is a major performance improvements
performance improvements of most evolution related algorithm

Extension features

color: add template label function
convert: add config option to use the local time zone
convert: add support for converting git submodule (issue3528)
hgk: use Ttk instead of plain Tk
inotify: don't fall over just because of a dangling symlink
largefiles: fix revert removing a largefile from a merge
largefiles: fix update from a merge with removed files
largefiles: make log match largefiles in the non-standin location too
largefiles: make update with backup files in .hglf slightly less broken
largefiles: rename 'admin' to more descriptive 'lfstoredir
rebase: performance improvements
rebase: rebase set with multiple roots are now handled by the --rev option
record: use patch.diffopts to account for user diffopts
share: always set default path to work with subrepos (issue3518)
zsh_completion: add completion of branch names

Fixes

commands: 'hg bookmark NAME' should work even with ui.strict=True
copies: do not track backward copies, only renames (issue3739)
destroyed: keep the filecache in sync with __dict__ (issue3335, issue3693, issue3743)
grep: don't search past the end of the searched string
hgweb: properly returns 404 for unknown revision (instead of 500)
histedit: proper phase conservation (issue3724)
histedit: prevents obsolescence cycle (issue3681)
hook: disable demandimport before importing hooks
mq: don't fail when removing a patch without patch file from series file
mq: fix qpop of working directory parent patch when not at qtip
zeroconf: use port from server instead of picking port from config (issue3746)
update: update to current bookmark if it moved out from under us (issue3682)
bookmarks: show active bookmark even if not at working dir
largefiles: let wirestore._stat return stats as expected by remotestore verify
largefiles: adapt verify to batched remote statlfile (issue3780)
largefiles: don't allow corruption to propagate after detection
largefiles: don't verify largefile hashes on servers when processing statlfile
largefiles: allow use of urls with #revision
largefiles: fix commit when using relative paths from subdirectory
largefiles: fix cat when using relative paths from subdirectory
histedit: prevent parent guessed via --outgoing from being a revset (issue3770)
rebase: delete divergent bookmarks on destination (issue3685)
hgwebdir: use web.prefix when creating url breadcrumbs (issue3790)
subrepo: allow skipping courtesy phase sync (issue3781)
merge: .hgsubstate is special as merge destination, not as merge source
merge: improved handling of symlinks

Mercurial 2.4.2 (2013-01-01)

This is a regularly-scheduled bugfix release.

amend: invalidate dirstate in case of failure (issue3670)
amend: prevent loss of bookmark on failed amend
bookmarks: fix head selection for merge with two bookmarked heads
bundlerepo: don't return the peer without bundlerepo from getremotechanges
dirstate: don't rename branch file if writing it failed
dirstate: remove obsolete comment from setbranch
hgweb: avoid generator exhaustion with branches
hgweb: fix iterator reuse in atom feed generation
hgwebdir: honor web.templates and web.static for static files (issue3734)
largefiles revert: update lfdirstate with result from first cleanliness check
largefiles status: update lfdirstate with result from cleanliness check
largefiles: commit directories that only contain largefiles (issue3548)
largefiles: don't walk through all ignored files
paper: sanity-check page feed links
scmutil: don't try to match modes on filesystems without modes (issue3740)
zeroconf: use port from server instead of picking port from config (issue3746)

Mercurial 2.4.1 (2012-12-03)

This is a regularly-schedule bugfix release.

amend: force editor only if old message is reused (issue3698)
grep: don't search past the end of the searched string
hooks: be even more forgiven of non-fd descriptors (issue3711)
hooks: delay I/O redirection until we actually run a hook (issue3711)
phases: fix missing "error" module import (issue3707)
rebase: fix pull --rev options clashing with --rebase (issue3619)
subrepo: add argument to "diff()" to pass "ui" of caller side (issue3712) (API)
update: allow update to existing branches with invalid names (issue3710)
util: make chunkbuffer non-quadratic on Windows

Mercurial 2.4 (2012-11-01)

This is a regularly-scheduled feature release.

Core features

amend: support for ChangesetEvolution if enabled
bookmarks: deactivate current bookmark if no name is given
bookmarks: teach the -r option to use revsets
bookmarks: disallow bookmarks named 'tip', '.', or 'null'
clone: substantial speedup to clone on repo with a lots of heads (issue3378)
clone: activate bookmark specified with --updaterev
clone: update to @ bookmark if it exists
log: substantial speedup for untracked files (issue1340)
revsets: add branchpoint() function
resolve: commit the changes after each item resolve (issue3638)
subrepo, hghave: use "svn --version --quiet" to determine version number
subrepo: setting LC_MESSAGES only works if LC_ALL is empty or unset
templatefilters: add parameterized date method
templatefilters: add parameterized fill function
templatefilters: avoid traceback caused by bogus date input (issue3344)
templatekw: add p1rev, p1node, p2rev, p2node keywords
templatekw: add parent1, parent1node, parent2, parent2node keywords
templater: abort when a template filter raises an exception (issue2987)
templater: add if/ifeq conditionals
templater: add sub() function
templating: make new-style templating features work with command line lists
bookmarks: take ChangesetEvolution into account when updating (issue3561)
speedup various operation related to ChangesetEvolution
add detection of changeset bumped by ChangesetEvolution

Extension features

color: add additional changeset.phase label to log.changeset and log.parent
color: enabled color support for export command (issue1507)
color: support for all grep fields
contrib: add a commit synthesizer for reproducing scaling problems
histedit: refuse to edit public changeset
histedit: replaces patching logic by merges
histedit: support for ChangesetEvolution if enabled
largefiles: always create the cache and standin directories when cloning
largefiles: distinguish "no remote repo" from "no files to upload" (issue3651)
largefiles: fix a traceback in lfconvert if a largefile is missing (issue3519)
mq: improve qqueue message with patches applied (issue3036)
mq: update bookmarks during qrefresh
notify: support revset selection for subscriptions
rebase: support for ChangesetEvolution if enabled
record: checks for valid username before starting recording process (issue3456)
record: fix display of non-ASCII names in chunk selection

Fixes

amend: fix incompatibity between logfile and message option (issue3675)
amend: wrap all commit operations in a single transaction
bookmarks: abort when incompatible options are used (issue3663)
bookmarks: avoid redundant creation/assignment of "validdests" in "validdest()"
bookmarks: check bookmark format during rename (issue3662)
bookmarks: when @ bookmark diverges, don't double the @ sign (BC)
bookmark: prevent crashing when a successor is unknown locally (issue3680)
clone: activate @ bookmark if updating to it
clone: don't %-escape the default destination (issue3145)
clone: make sure to use "@" as bookmark and "default" as branch (issue3677) (BC)
clone: print bookmark name when clone activates a bookmark
commands: don't infer repo for commands like update (issue2748)
convert: normalize paths in filemaps (issue3612)
dirstate: handle large dates and times with masking (issue2608)
dirstate: handle dangling junctions on windows (issue2579)
filemerge: use util.shellquote when calling merge (issue3581)
hgweb: make the escape filter remove null characters (issue2567)
http2: make it possible to connect w/o ssl on port 443
icasefs: make case-folding collision detection as deletion aware (issue3648)
largefiles: don't copy largefiles from working dir to the store while converting
largefiles: respect the rev when reading standins in copytostore() (issue3630)
largefiles: use 'default' instead of 'default-push' when pulling (issue3584)
mq: fix qrefresh case sensitivity (issue3271)
patchbomb: respect --in-reply-to for all mails if no intro message is sent
remove: don't return error on directories with tracked files
revset: accept @ in unquoted symbols (issue3686)
scmutil: add mustaudit delegation to filtervfs (issue3673)
subrepo: only do clean update when overwrite is set (issue3276)
subrepo: subrepo isolation, pass baseui when cloning a new subrepo (issue2904)
update: check for missing files with --check (issue3595) (BC)
url: use open and not url.open for local files (issue3624)
verify: fix all doubled-slash sites (issue3665)
wireproto: fix pushkey hook failure and output on remote http repo

Mercurial 2.3.2 (2012-10-01)

amend: preserve phase of amended revision (issue3602)
archival: add "extended-timestamp" extra block for zip archives (issue3600)
hgweb: avoid bad $$ processing in graph (issue3601)
hgweb: fix incorrect graph padding calculation (issue3626)
largefiles: fix return codes for multiple commands
largefiles: don't convert dest=None to dest=hg.defaultdest() in clone command
largefiles: download missing subrepo revs when archiving
largefiles: enable islfilesrepo() prior to a commit (issue3541)
largefiles: handle commit -A properly, after a --large commit (issue3542)
largefiles: preserve exit code from outgoing command (issue3611)
largefiles: restore caching of largefiles with 'clone -U --all-largefiles'
largefiles: restore normal 'clone -u' and 'clone -U' functionality
lock: fixed race condition in trylock/testlock (issue3506)
mergetools.hgrc: set vimdiff to check=changed
strip: fix revset usage (issue3604)
subrepo: encode unicode path names (issue3610)

Mercurial 2.3.1 (2012-09-01)

clone: don't fail with --update for non-local clones (issue3578)
commit: normalize filenames when checking explicit files (issue3576)
fileset: actually implement 'minusset'
fileset: do not traceback on invalid grep pattern
fileset: exclude deleted files from matchctx.existing()
fileset: fix generator vs list bug in fast path
fileset: matchctx.existing() must consider ignored files
fileset: matchctx.existing() must consider unknown files
largefiles: adjust localstore to handle batch statlfile requests (issue3583)
merge: handle case when heads are all bookmarks
obsolete: import modules within mercurial/ without "from mercurial"
revlog: don't try to partialmatch strings with length > 40
rollback: write dirstate branch with correct encoding
store: only one kind of OSError means "nonexistent entry"
store: sort the results of fncachestore.datafiles()
strip: fix revset usage (issue3604)
templater: handle a missing value correctly
verify: do not choke on valid changelog without manifest
wix: bump MSI based installers to use Python 2.7

Mercurial 2.3 (2012-08-01)

This is a regularly-scheduled feature release with numerous improvements and bugfixes.

Core features

help: add --keyword (-k) for searching help
hgweb: side-by-side comparison functionality
log: support --graph without graphlog extension
push: accept revset argument for --rev
merge: bookmarks will no longer automatically merge with unnamed heads or other bookmarks. Instead it picks heads with diverging bookmarks.
introduce ChangesetsObsolescence concept (experimental)
bookmarks: allow existing remote bookmarks to become heads when pushing
bookmarks: pull new bookmarks from remote by default (backward incompatible change)
bookmarks: delete divergent bookmarks on merge
bisect: set HG_NODE when runing a command
graft: allow -r to specify revisions
graft: implement --log (issue3438)
graft: remark on empty graft
hooks: print out more information when loading a python hook fails
identity: show trailing '+' for dirty subrepos (issue2839)
incoming/outgoing: handle --graph in core
merge: warn about file deleted in one branch and renamed in other (issue3074)
Mercurial can now identify third-party extensions as sources of tracebacks
outgoing: accept revset argument for --rev
performance improvement on branchy repo: incrementaly update branchcache
performance improvement on huge file tree: add a C function to pack the dirstate
performance improvement for huge .hgignore: process regex with re2 bindings if available
revset: add "diff" field to "matching" predicate
revset: add "converted" predicate to find converted changesets
revset: add "origin" and "destination" predicates, to get graft, transplant or rebase origins or destinations.
revset: add "extra" predicate to match changesets extra fields (issue2767)
revset: add pattern matching to "bookmarks/branch/extra/tag/user" predicated

Extension features

acl: use of "!" prefix in user or group names
children: mark extension as deprecated
convert/svn: handle non-local svn destination paths (issue3142)
convert: accept Subversion 'file:///c%3A/svnrepo' syntax on Windows
fetch: mark extension as deprecated
graphlog: feature is now into core
histedit: new extension for interactive history editing
hg-ssh: add read-only flag
largefiles: add --all-largefiles flag to pull and clone (issue3188)
largefiles: improve performance by batching statlfile requests when pushing a largefiles repo (issue3386)
largefiles: no longer attempt to clone all largefiles to non-local destinations
largefiles: optimize performance when updating (issue3440)
largefiles: support revsets for cat, outgoing --large and revert
mq: introduce qpush/qpop/qgoto --keep-changes
strip: introduce -B option to remove a bookmark
rebase: allow collapsing branches in place (issue3111)
rebase: make --dest understand revsets
rebase: drop the infamous --detach option: rebase now behave with --source and --rev as expectable. It may no longer add second parent to rebased changeset (backward incompatible change)
transplant: handle non-empty patches doing nothing (issue2806)
transplant: manually transplant pullable changesets with --log

Fixes

bisect: fix O(n**2) behaviour (issue3382)
bookmarks: fix push of moved bookmark when creating new branch heads
case insensitive file system can no longer be confused by -R on (issue2167)
copies: one fix related to directory rename detection (issue3511)
convert: check for failed svn import in debugsvnlog and abort cleanly
convert: ignore svn:executable for subversion targets without exec bit support
convert: keep branch switching merges with ancestors (issue3340)
convert: make filemap renames consistently override revision renames
debugrevlog: fix a bug with empty repository (issue3537)
graphlog: don't truncate template value at last \n
httprepo: ensure Content-Type header exists when pushing data
largefiles: fix a traceback when addremove follows a remove (issue3507)
largefiles: fix a traceback when archiving a subrepo in a subrepo
largefiles: fix addremove when largefile is missing (issue3227)
largefiles: fix addremove with -R option
largefiles: fix exception hack for i18n (issue3197)
largefiles: fix path handling for cp/mv (issue3516)
largefiles: archive -S now store largefiles instead of standins
largefiles: fix hg addremove when already removed largefile exists (issue3364)
merge: do not warn about copy and rename in the same transaction (issue2113)
mq: add ".hgsubstate" to patch target list only if it is not listed up yet
mq: create patch file after commit to import diff of ".hgsubstate" at qrefresh
pager: work around bug in python 2.4's subprocess module (issue3533):
revlog: zlib.error are no longer sent to the user (issue3424)
tag: don't allow tagging the null revision (issue1915)

Mercurial 2.2.3 (2012-07-01)

This is a regularly-scheduled bugfix release.

amend: disable hooks when creating intermediate commit (issue3501)
archive: make progress only show files that are actually archived
bookmarks: correctly update current bookmarks on rebase (issue2277)
bugzilla: stop bugs always being marked as fixed in xmlrpc (issue3484)
graft: don't drop the second parent on unsuccessful merge (issue3498)
hgweb: fixes linebreak location in gitweb filediff.tmpl view
rebase: improve error message on improper phases
record: fix display of non-ASCII names
statichttprepo: don't send Range header when requesting entire file
strip: update help to state that you can strip public changeset
subrepo/svn: make rev number retrieval compatible with svn 1.5 (issue2968)
subrepo: support Git being named "git.cmd" on Windows (issue3173)
subrepo: warn user if Git is not version 1.6.0 or higher
update: fix help regarding update to ancestor

Mercurial 2.2.2 (2012-06-01)

This is a regularly-scheduled bugfix release.

addremove: document default similarity behavior (issue3429)
alias: inherit command optionalrepo flag (issue3298)
amend: preserve extra dict (issue3430)
bisect: save current state before running a command
bugzilla: fix transport initialization on python 2.4
build: fix hgrc manpage building with docutils 0.9
bundle: make bundles more portable (issue3441)
changelog: ensure that nodecache is valid (issue3428)
hg-ssh: exit with 255 instead of -1 on error
hgweb: fix filediff base calculation
largefiles: fix "hg status dir" missing regular files (issue3421)
largefiles: fix deletion of multiple missing largefiles (issue3329)
largefiles: follow normal codepath for addremove if non-largefiles repo (issue3249)
largefiles: in putlfile, ensure tempfile's directory exists prior to creation
largefiles: use wlock for lfconvert (issue3444)
localrepo: clear _filecache earlier to really force reloading (issue3462)
match: make 'match.files()' return list object always
mq: add --no-backup for qpush/qpop/qgoto
mq: backup local changes in qpop --force (issue3433)
mq: backup local changes in qpush --force
mq: qimport need wlock for --push - do that after releasing lock
osutil: handle deletion race with readdir/stat (issue3463)
pager: check if signal.SIGPIPE exists
pager: preserve Hg's exit code (and fix Windows support) (issue3225)
pager: remove quiet flag
paper, monoblue: link correctly to lines in annotate view
parsers: fix refcount bug on corrupt index
patch: fix segfault against unified diffs which start line is zero
patch: keep patching after missing copy source (issue3480)
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
revpair: handle odd ranges (issue3474)
revset: explicitely tag alias arguments for expansion
revset: fix infinite alias expansion detection
revset: fix traceback for bogus revisions in id(rev)
revset: make matching() preserve input revision order
scmutil: seen.union should be seen.update (issue3476)
subrepo: do not traceback on .hgsubstate parsing errors
subrepo: ignore blank lines in .hgsubstate (issue3424)
tag: run commit hook when lock is released (issue3344)
templater: handle SyntaxError when parsing ui.logtemplate
util: fix bad variable use in bytecount introduced by f0f7f3fab315
win32: fix encoding handling for registry strings (issue3467)

Mercurial 2.2.1 (2012-05-03)

This is an unscheduled bugfix release to fix a signficant memory leak in hgweb.

bookmarks: catch the proper exception for missing revisions
help: add reference to template help (issue3413)
help: added description for the web.collapse setting
largefiles: fix commit of both largefiles and non-largefiles (issue3354)
parsers: fix refcount leak, simplify init of index (issue3417)

Mercurial 2.2 (2012-05-01)

This is a regularly-scheduled feature release. The most notable feature is a new safe '--amend' option for commit using our new phases infrastructure. There are also a number of signficant performance improvements for large repositories and improvements for case-folding filesystems. See UpgradeNotes for minor compatibility notes.

Core features

commit: add --amend option
fileset: add "subrepo" fileset symbol
graft: add --dry-run support (issue3362)
hgweb: add support for branch width and color settings
hgweb: add block numbers to diff regions and related links
hgweb: support multi-level repository indexes by enabling descend and collapse
merge: improve performance with lots of unknown files
parsers: incrementally parse the revlog index in C
plan9: add support for plan9
push/pull: improve performance for partial transfers
push: decompress in larger chunks for better performance on the server
clone: add server config option to prefer uncompressed clone
revert: add support for reverting subrepos
revset: add "matching" keyword
store: speed up read and write of large fncache files
ui: optionally quiesce ssl verification warnings on python 2.5

Extension features

bugzilla: add xmlrpcemail submission for Bugzilla 3.6 email interface
bugzilla: allow change comment to mark bugs fixed
bugzilla: extract optional hours from commit message and update bug time
bugzilla: modify access interface to include new bug states
graphlog: add all log options to glog command
patchbomb: add --body flag to send patches as inline message body text
record: allow splitting of hunks by manually editing patches
transplant: permit merge changesets via --parent

Fixes

alias: fix shell alias documentation (issue3374)
archive: make it work with svn subrepos (issue3308)
branchmap: server should not advertise secret changeset in branchmap (issue3303)
clone: always close source repository (issue2491)
commit: abort on merge with missing files (BC)
config: discard UTF-8 BOM if found
convert/bzr: convert all branches (issue3229) (BC)
convert/bzr: expect unicode metadata, encode in UTF-8 (issue3232)
convert/bzr: handle empty bzr repositories (issue3233)
convert/bzr: ignore nested repos when listing branches (issue3254)
convert/svn: do not try converting empty head revisions (issue3347)
convert/svn: make svn sink work with svn 1.7
convert: support non-annotated tags in git backend
dirstate: preserve path components case on renames (issue3402)
export: catch exporting empty revsets (issue3353)
icasefs: make case-folding collision detection rename aware (issue3370)
inotify: catch SignalInterrupt during shutdown (issue3351)
journal: use tryread helper to backup files (issue3375)
largefiles: fix cat for largefiles (issue3352)
largefiles: fix status -S reporting of subrepos (issue3231)
largefiles: hide .hglf/ prefix for largefiles in hgweb
largefiles: notice dirty large files in a subrepo
largefiles: only update changed largefiles when transplanting
largefiles: optimize update speed by only updating changed largefiles
localrepo: add setparents() to adjust dirstate copies (issue3407)
mdiff: fix diff header generation for files with spaces (issue3357)
merge: check for untracked files more precisely (issue3400)
merge: fix unknown file merge detection for case-folding systems
patch: be more tolerant with "Parent" header (issue3356)
patch: be more tolerant with EOLs in binary diffs (issue2870)
patch: fix patch hunk/metdata synchronization (issue3384)
phase: when phase cannot be reduced, hint at --force and return 1 (BC)
posix: disable cygwin's symlink emulation (BC)
posix: ignore execution bit in cygwin (issue3301)
pure/osutil: use Python's msvcrt module (issue3380)
rebase: preserve mq series order, guarded patches (issue2849)
rebase: skip resolved but emptied revisions
revset: fix O(n**2) behaviour of bisect() (issue3381)
revset: fix adds/modifies/removes and patterns (issue3403)
revset: fix alias substitution recursion (issue3240)
subrepo/svn: abort on commit with missing file (issue3029)
subrepo/svn: fix checked out rev number retrieval (issue2968)
subrepo: fix default implementation of forget() (issue3404)
subrepo: rewrite handling of subrepo state at commit (issue2403)
templates/filters: extracting the user portion of an email address (BC)
transplant: do not rollback on patching error (issue3379)
update: fix case-collision with a clean wd and no --clean
update: make --check abort with dirty subrepos
update: use normal update path with --check (issue2450)
wireprotocol: use visibleheads as reference while unbundling (issue 3303)

Mercurial 2.1.2 (2012-04-01)

This is a regularly-scheduled bugfix release.

alias: abort on missing positional args (issue3331)
aliases: use empty string for missing position parameters (issue3331)
bookmarks: clone non-divergent bookmarks with @ in them
convert/git: abort if git submodules are detected (issue2150)
convert: deal with empty splicemap path (issue3311)
dirstate: avoid normalizing letter case on icasefs for exact match (issue3340)
dirstate: fix some problems for recursive case normalization (issue3342)
dirstate: normalize case of directory components
extdiff: escape filenames with vim/DirDiff and make quoting work with Windows
filemerge: remove temporary files when using internal:dump as merge-tool
filemerge: restore default prompt for binary/symlink lost in 83925d3a4559
icasefs: use case preserved root for 'util.fspath()' invocation (issue3302)
largefiles: suppress unexpected warning of 'hg status' for removed files
localrepo: fix unpushable repos when using bookmarks (issue3317)
merge: accept missing revisions in symlink flag merge (issue3316)
merge: handle linear update to symlink correctly (issue3316)
mq: fix qpush --move with comments in series file between applied patches
qfinish: comply with the phases.new-commit option in secret mode (issue3335)
rebase: move bookmarks as needed with pull --rebase (issue3285)
rebase: properly calculate descendant set when aborting (issue3332)
rename: handle case-changing (issue1717)
setup.py: don't call splitlines twice on the output of xcodebuild (issue3277)
strip: enhance repair.strip to receive a list of nodes (issue3299)
strip: ignore -n (issue3326) (BC)
wix: add phases help text and two more translations (issue3288)

Mercurial 2.1.1 (2012-03-01)

This is a regularly-scheduled bugfix release.

bdiff: fix malloc(0) issue in fixws()
bugzilla: stop XMLRPC requests from requesting gzipped responses
bundlerepo: bundle repos should be non-publishing (issue3266)
cmdserver: invalidate the dirstate when running commands (issue3271)
context: make workingctx.forget() really warn about untracked files
convert: ignore blank lines in mapfiles (issue3286)
convert: tolerate spaces between splicemap parent ids (issue3203)
convert: use splicemap entries when sorting revisions (issue1748)
dirstate: filecacheify _ignore (issue3278)
fetch: use update rather than clean when updating (issue3246)
forget: show warning messages for forgetting in subrepo correctly
graft: use proper revisions for copy detection (issue3265)
import: handle git renames and --similarity (issue3187)
largefiles: check whether specified patterns are related to largefiles strictly
largefiles: don't break filesets
largefiles: only cache largefiles in new heads
largefiles: use repo.store.createmode for new files in .hg/largefiles
localrepo: clear _filecache on rollback (issue3261)
localrepo: reset _phasesdirty flag after writing
localrepo: use 'changectx.dirs()' in 'status()' for directory patterns
log: fix --follow FILE ancestry calculation
log: remove caching of all visited revisions (issue3253)
log: restore cache used by --copies
mdiff: adjust hunk offsets with --ignore-blank-lines (issue3234)
mq: fix qapplied --last and qprev documentation (issue3282)
mq: fix qnext when all remaining patches are guarded
mq: make qimport --push push all imported patches (issue3130)
mq: make qprev return the previous applied patch (issue3245)
mq: restore _branchtags() fast path (issue3223)
patch: fix fuzzing of hunks without previous lines (issue3264)
patch: fuzz more aggressively to match patch(1) behaviour
pull: backout change to return code
scmutil: update cached copy when filecached attribute is assigned (issue3263)
setup: handle output from Apple's Xcode 4.3 better (issue3277)
subrepo: fix for merge inconsistencies
update: delete bookmarks.current when explicitly updating to a rev (issue3276)
update: don't move the active bookmark if a rev is specified with -r

Mercurial 2.1 (2012-02-01)

This is a regularly-scheduled feature release. See UpgradeNotes for some minor compatibility notes.

Major features

Changesets now have a phase attribute, which tracks what changesets are safe to modify (see Phases)

Core changes

annotate: support diff whitespace filtering flags (issue3030)
bookmarks: automatically advance bookmark on bare update (BC) (issue2894)
bookmarks: shadow divergent bookmarks of foo with foo@n
copies: improved copy detection for diff and status
hooks: new priority specifier to control ordering
id: add command line options for handling ssh and https urls
push: propagate --new-branch and --ssh options when pushing subrepos
revset: add remote() predicate to lookup remote revisions
subrepo: support explicit add and forget of files in subrepos

Extension changes

bugzilla: make XMLRPC interface support http and https access
largefiles: add --normal option to hg add (issue3061)
notify: add option for writing to mbox
rebase: add a "D" short option for detach
rebase: allow --detach when --rev is used
win32mbcs: allow win32mbcs extension to be enabled on cygwin platform
mq: add secret phase setting

Bug fixes

hgcia: fix diffstat support
largefiles: add error checking to tags conversion (issue3092)
largefiles: add tests for uncovered codepaths (issue3092)
largefiles: check if largefile could be found when archiving (issue3193)
largefiles: correctly download new largefiles when merging
largefiles: correctly handle dirstate status when rebasing
largefiles: correctly handle newly added largefile on other side of merge
largefiles: display remote errors from putlfile (issue3123) (issue3149)
largefiles: don't reference uninitialized variable (issue3092)
largefiles: fix caching largefiles from an aliased repo (issue3212)
largefiles: fix confusion upon removal of added largefile (issue3176)
largefiles: fix inappropriate locking (issue3182)
largefiles: fix output of hg summary (issue3060)
largefiles: cache new largefiles for new heads when pulling
largefiles: implement addremove (issue3064)
largefiles: optimize performance of status on largefiles repos (issue3136)
largefiles: optimize status when files are specified (issue3144)
largefiles: remove empty directories upon update (issue3202)
largefiles: fix addremove when no largefiles are specified
largefiles: fix revert on missing largefile (issue3217)
largefiles: fix transplant for all cases (issue3192)
mail: use quoted-printable for mime encoding to avoid too long lines (issue3075)
merge: give a special message for internal:merge failure (issue3105)
rebase: reinstate old-style rev spec support for the source and base (issue3181)
ssh: quote remote paths (issue2983)
sslutil: abort properly if no certificate received for https connection
sslutil: show fingerprint when cacerts validation fails
status: support revsets with --change
subrepo: avoid syncing bookmarks twice on clone (issue3191)
tag: invalidate tag cache immediately after adding new tag (issue3210)
util: don't encode ':' in url paths
bundlerepo: try to find containing repo on creation (issue1812)
convert: subversion convert abort on revision not found (issue3205)
discovery: fix regression when checking heads for pre 1.4 client (issue3218)
merge: defer symlink flag merging to filemerge (issue3200)
patch: a little bit more robust line counting on diff --stat (issue3183)
push: return 1 if no changes found (issue3228)
qpush: avoid trying to manage existing history (issue2218)
revsets: include the correct first ancestor change for follow(file)
revsets: filesets now work correctly inside of revsets

Mercurial 2.0.2 (2012-01-01)

This is a regularly-scheduled bug-fix release.

alias: shortcut command matching so shadowing works properly (issue3104)
branch: warn on branching
changelog: handle decoding of NULs in extra more carefully (issue3156)
convert: improve exception reporting for SVN logstream
diff: don't crash when diffing a revision with a deleted subrepo (issue3153)
fetch: fix unneeded commit when no merge attempted (issue2847)
fetch: patch cornercase in children calculation (issue2773)
largefiles: copy files in binary mode (issue3164)
largefiles: don't require a user cache (issue3088) (issue3155)
largefiles: fix 'hg status' abort after merge
largefiles: handle merges between normal files and largefiles (issue3084)
merge: check filename case collision between changesets for branch merging
pathauditor: switch normcase logic according to case sensitivity of filesystem
progress: check for ui.quiet and ui.debugflag before we write
rollback: always call destroyed() (regression from 1.9)
util: fix url.str() for windows file URLs
windows: use upper() instead of lower() or os.path.normcase()

Mercurial 2.0.1 (2011-12-01)

This is a regularly-scheduled bug-fix release.

alias: shortcut command matching show shadowing works properly (issue3104)
bundlerepo: don't write branch cache to disk
clone: don't save user's password in .hg/hgrc (issue3122)
convert/bzr: correctly handle divergent nested renames (issue3089)
convert/bzr: fix test of divergent nested renames for bzr 1.x
convert/svn: fix URL quoting issue with svn 1.7
convert: handle trailing slashes in filemap better (issue3124)
diff: '\ No newline at end of file' is also not part of the header
diff: --ignore-blank-lines was too enthusiastic
dirstate: fix case-folding identity for traditional Unix
graft: disallow grafting grafted csets in specific situations (issue3091)
graft: preserve original source in subsequent grafts
hook: flush stdout before redirecting to stderr
import: fix parent selection when importing merges
largefiles: ensure destination directory exists before findfile links to there
largefiles: file storage should be relative to repo, not relative to cwd
largefiles: fix 'hg clone . ../foo' OSError abort
largefiles: fix rename (issue3093)
largefiles: treat status of cache missed largefiles as "missing" correctly
largefiles: use "ui.configlist()" to get largefiles.patterns configuration
largefiles: write .hg/largefiles/ files atomically
makedate: wrong timezone offset if DST rules changed this year (issue2511)
mdiff/patch: fix bad hunk handling for unified diffs with zero context
posix: add extended support for OS X path folding
posix: fix findexe() to check for file type and access
rebase: ensure target is not taken as external (issue3085)
rebase: treat nullmerge as a special case in rebasestate (issue3046)
revset: balance %l or-expressions (issue3129)
revset: follow(nosuchfile) should give an empty set (issue3114)
subrepo: fix git status false positive (issue3109)
subrepo: use correct paths for subrepos with ..-relative paths on windows
update: don't clobber untracked files with wrong casing
url: handle file://localhost/c:/foo "correctly"

Mercurial 2.0 (2011-11-01)

This is a regularly-scheduled feature release. See UpgradeNotes for some minor compatibility notes.

Major features

New core graft command (similar to transplant extension)
New largefiles extension

Core changes

commit: abort when there are uncommitted subrepos, use the -S option to recurse
help: most commands now have usage examples with help -v
import: add --edit switch
revset: add more keywords for bisection
revert: introduce short option -C for --no-backup
log: add new 'bisect' style that prints the bisection status
hgweb: add a "web/logoimg" setting to customize the web logo image
subrepo: pull revisions on demand when archiving hg subrepos

Extension changes

color: add styles for tags
convert: added bookmarks support in filemap
eol: add new eol.fix-trailing-newline setting
eol: eol.only-consistent can now be specified in .hgeol
export: add %m to file format string (first line of the commit message)
mq: make qqueue print current queue name
rebase: add --edit switch
rebase: add --rev option to rebase
rebase: allow rebase on ancestor
share: introduce unshare command
transplant: add --edit option

Bug fixes

alias: don't shadow commands that we only partially matched (issue2993) (BC)
commit: suppress spurious new head message for duplicate commit (issue2893)
contrib: some support for named branches in zsh_completion (issue2988)
progress: add a changedelay to prevent parallel topics from flapping (issue2698)
rebase: allow rebase to ancestor (issue3010)
rollback: avoid unsafe rollback when not at tip (issue2998)
subrepo: fix git branch tracking logic (issue2920)
subrepo: fix repo relative path calculation for root directories (issue3033)
summary: show bookmarks separate from tags and note active mark (issue2892)
util: wrap lines with multi-byte characters correctly (issue2943)
verify: filter messages about missing null manifests (issue2900)
wireproto: do not call pushkey module directly (issue3041)
auth: fix realm handling with Python < 2.4.3 (issue2739)
diffstat: be more picky when marking file as 'binary' (issue2816)
dirstate: don't fail when dropping a not-tracked file (issue3080)
grep: correct handling of matching lines without line ending (issue3050)
hgweb: fix dynamic date calculation not working under Safari
mq: avoid data loss upon qfold + qmv (issue3058)
setup: set whole env for running hg even if .hg doesn't exist (issue3073)
windows: recompute flags when committing a merge (issue1802)
windows: sanity-check symlink placeholders

Mercurial 1.9.3 (2011-10-01)

This is a regular bugfix release.

setup: build inotify for sys.platform='linux*'
bundlerepo: add argument check before unlink
hgweb: properly check for bookmarks when drawing graph
http: handle push of bundles > 2 GB again (issue3017)
keyword: preserve file mode when overwriting
osutil: avoid accidentally destroying the True object in isgui (issue2937)
patch: correctly handle non-tabular Subject: line
patch: handle 'gitpatches' being empty, but not none
record: use command wrapper properly for qnew/qrefresh (issue3001)
setdiscovery: fix hang when #heads>200 (issue2971)
ui: also swap sys.stdout with self.fout in _readline
ui: write traceback to self.ferr
url: Remove the proxy env variables only when needed (issue2451)
url: parse fragments first (issue2997)
util: fix crash converting an invalid future date to string
util: wrap lines with multi-byte characters correctly (issue2943)
win32: quietly ignore missing CreateHardLinkA for Wine

Mercurial 1.9.2 (2011-08-26)

This is a regular bugfix release (slightly early due to travel plans).

commands: clarify that 'hg heads foo' shows heads on branch foo
dispatch: don't rewrap aliases that have the same definition
graphlog: attempt to fix index overrun (issue2912)
http: pass user to readauthforuri() (fix 4a43e23b8c55)
http: strip credentials from urllib2 manager URIs (issue2885)
parsers: avoid pointer aliasing
subrepo: fix cloning of repos from urls without slash after host (issue2970)
ui: pass ' ' to raw_input when prompting
url: really handle urls of the form file:///c:/foo/bar/ correctly
win32: msvcr71.dll should be used for python 2.4 and 2.5

Mercurial 1.9.1 (2011-08-01)

This is a regular bugfix release. It fixes several regressions introduced in 1.9. The hgweb server now disables MIME type guessing by default to avoid a potential cross-site scripting issue when hosting untrusted repositories (issue2923). See UpgradeNotes for more info.

dispatch: make sure global options on the command line take precedence
eol: ignore IOError from deleted files in commitctx
hgcia: set default value of strip to -1 (issue2891)
hgweb: do not ignore [auth] if url has a username (issue2822)
hgweb: handle 'baseurl' configurations with leading slash (issue2934)
hgweb: raw file mimetype guessing configurable, off by default (BC) (issue2923)
httpclient: import ca33b88d143c from py-nonblocking-http (issue2932)
patch: fix parsing patch files containing CRs not followed by LFs
rebase: block collapse with keepbranches on multiple named branches (issue2112)
rebase: reset bookmarks (issue2265 and issue2873)
revert: restore check for uncommitted merge (issue2915) (BC)
revsets: catch type error on tip^p1(tip) (issue2884)
revsets: do the right thing with x^:y (issue2884)
subrepo: handle adding svn subrepo with a svn:external file in it (issue2931)
subrepo: use working copy of .hgsub to filter status (issue2901)
url: store and assume the query part of an url is in escaped form (issue2921)
util: rename the util.localpath that uses url to urllocalpath (issue2875)
verify: filter messages about missing null manifests (issue2900)
web: output a correct date in short format (issue2902)
win32: assign winstdout to sys.stdout as well (issue2888)

Mercurial 1.9 (2011-07-01)

This is a regular feature release. See UpgradeNotes for some minor compatibility notes.

Major features

New fileset file matching support
Improved remote changeset discovery
New command server mode to improve application integration
Experimental generaldelta storage scheme
Experimental new http client library

Command changes

HGPLAIN: allow exceptions to plain mode, like i18n, via HGPLAINEXCEPT
manifest: add new option --all
aliases: add positional arguments to non-shell aliases
add: introduce a warning message for non-portable filenames (issue2756)
add: notify when adding a file that would cause a case-folding collision
bisect: new command to extend the bisect range (issue2690)
bookmarks: allow deactivating current bookmark with -i
bundle: update current bookmark to most recent revision on current branch
diff: make diff -c aware of revision sets
help: add -c/--command flag to only show command help (issue2799)
help: add -e/--extension switch to display extension help text
help: move hgignore man page into built-in help (issue2769)
http: correctly handle redirects from http to https
identify: list bookmarks for remote repositories
import: add --bypass option
paths: Add support for -q/--quiet
pushkey: add hooks for pushkey/listkeys
revset: add aliases
revset: add ^ and ~ operators from parentrevspec extension
revset: add a revset command to get bisect state
revset: add desc(string) to search in commit messages
revset: add follow(filename) to follow a filename's history across copies
revset: introduce filelog() to emulate log's fast path
revset: add a last() function

Web changes

add bookmarks listing to raw style and summary pages
support alternate logo url
add base link to file log for paper and coal styles (issue2452)
paper, coal: display diffstat on the changeset page
elapsed time calculation dynamic (javascript)
provide diffstat and summary on the changeset page

Extension changes

hgcia: handle URL like in notify (issue2406)
rebase: add -m/--message to rebase --collapse (issue2389)
Updating hgext.extdiff to use revsets
bash_completion: enable alias auto-complete
bugzilla: add XMLRPC interface
color: add support for terminfo-based attributes and color
convert/mtn: add support for using monotone's "automate stdio" when available
convert/svn: stop using svn bindings when pushing to svn
convert: add bookmark support for hg and git backends
convert: add svnrev, svnpath and svnuuid template keywords
extdiff: add repository root as a variable
graphlog: support more log command features with revsets
keyword: convert a verbatim block to a field list
keyword: offer additional datefilters when the extension is enabled
mq: add a 'mq()' revset predicate that returns applied mq csets
notify: send changesets on 'outgoing' hook, updated doc
progress: add speed format
rebase: add --tool argument for specifying merge tool
rebase: allow for rebasing descendants onto ancestors on different named branches
record: add an option to backup all wc modifications
record: add qrefresh -i/--interactive
record: add white space diff options
record: alias qrecord to qnew -i/--interactive

Bug fixes

bookmarks: allow create/move bookmark without

Mercurial 1.8.4 (2011-06-01)

This is a regular time-based bugfix release.

bookmarks: do not forward merged bookmark (issue1877)
changelog: convert user and desc from local encoding early
fix bookmarks rollback behavior
hgrc.5: document shell aliases
httprepo: proper handling of invalid responses without content-type (issue2019)
httprepo: send URL redirection notices to stderr (issue2828)
localrepo: don't add deleted files to list of modified/added files (issue2761)
localrepo: ignore tags to unknown nodes (issue2750)
mq: strip extra whitespace from node ids in header (issue2790)
rebase: restore mq guards after rebasing (issue2107)
revset: expand help for contains predicate
revset: note case-insensitive matches in keyword and user
revset: note case-sensitive match in grep
revset: report a parse error if a revset is not parsed completely (issue2654)
revset: the name is optional for the tag predicate
simplemerge: do not allow binary files to abort an entire merge
strip: make it clear that --force discards changes (issue310)
subrepo: don't crash when git .hgsubstate is empty (issue2716)
subrepo: make stdin for svn a pipe for non-interactive use (issue2759)
subrepo: respect non-default path for incoming/outgoing
subrepo: svn abort now depends on exit code (issue2833)
subrepo: use code from 71ea5b only if Python needs it (issue2795)
tags: catch more corruption during cache parsing (issue2779)

Mercurial 1.8.3 (2011-05-01)

This is a regular time-based bugfix release.

convert: make filemap prune useless branch closing revs (issue2774)
encoding: avoid localstr when a string can be encoded losslessly (issue2763)
extdiff: fix broken symlinks handling (issue1909)
help config: explain that config files do not exist by default
hgweb: add bookmark labels to gitweb theme
hgweb: add missing bookmarks definition to coal/map
hgweb: add missing bookmarks templates to atom/rss styles
hgweb: add separate bookmarks listing to gitweb theme
hgweb: add separate bookmarks listing to monoblue theme
hgweb: detect change based on changelog size too
hgweb: fix inconsistant display of graphlog (issue1706)
hgweb: fix typo and inactive link in page_nav and page_header of gitweb's help
hgweb: fix typo in page-header of monoblue's help template
hgweb: format page_nav of gitweb/error.tmpl and add missing links
rebase: don't mark file as removed if missing in parent's manifest (issue2725)
subrepo: handle svn tracked/unknown directory collisions
subrepo: prevent url normalization from removing // in ssh paths (issue2556)
subrepo: tell Subversion when we are non-interactive (issue2759)
url: use a regex to hide unsupported ssh passwords (issue2754)
zeroconf: notify the Zeroconf threads when hg exits

Mercurial 1.8.2 (2011-04-01)

This is a regular time-based bugfix release.

bookmarks: discard current bookmark if absent from the bookmarks (issue2692)
bookmarks: fix update of the current bookmark during rename
color: port to using ctypes (issue2687)
convert/svn: fix _iterfiles() output in root dir case (issue2647)
eol: do not abort when win32text is found, only warn
eol: use dirstate methods to clear dirstate
fix compiling of extensions for OS X and XCode 4.0
hgweb: add display of bookmarks for changelog and changeset
hgweb: add separate page with bookmarks listing
merge: avoid unlinking destination of merge when case changes (issue2715)
mq: do not let qrefresh write bad patch
pager: don't page stderr if it's being redirected (issue2541)
push/outgoing: print remote target path even if there's an error (issue2561)
subrepo: recognize scp-style paths as git URLs
templates: widen the graph canvas (issue2683)

Mercurial 1.8.1 (2011-03-10)

This release backs out a behavior change for so-called 'fast-forward' merges on named branches.

annotate: rewrite to deal with crossed linkrevs (issue2682)
bookmark: fix invalidation of localrepo._bookmarkcurrent
cacert: improve error report when web.cacert file does not exist
contrib: update tcsh_completion for Mercurial 1.8
hgcia: accept "queued." xmlrpc return as success
hgweb: fix filelog rss links generation
hgweb: use tip in gitweb/monoblue filelog rss links (issue2677)
merge: back out single-parent fast-forward merge
merge: drop resolve state for mergers with identical contents (issue2680)
merge: improve unresolved conflicts warning (issue2681)
mergetools: add alternate registry keys for 32bit apps on 64bit O/S
mq: forbid commit of merge involving mq patches
subrepo: backout 67fbe566eff1, --force requires svn >= 1.5
subrepo: don't crash when git repo is missing
subrepo: handle svn tracked/unknown directory collisions
wix: drop bin/ folder from MSI installers (issue2673)

Mercurial 1.8 (2011-03-01)

Core

Bookmarks are now a core feature (see UpgradeNotes)
New listfile: pattern-matching (patterns)
Revset syntax supported by most commands
Performance improvements for reading large repository indexes
Certificate validation for HTTPS proxies

Subrepos

New support for git subrepos
Various improvements to merge, update, and commit logic

Windows

Numerous robustness improvements for quirks in Windows file handling
Now uses the native ctypes module rather than PyWin32

Extensions

eol: filter aliases for compatibility with win32text
mq: --exact option for qpush
mq: various robustness improvements
progress: remaining time estimates

Mercurial 1.7.5 (2011-02-01)

This is a quick bugfix release to include some fixes accidentally dropped from 1.7.4.

subrepo: fix update -C with svn subrepos when cwd != repo.root
subrepo: make update -C clean the working directory for svn subrepos
url: add --insecure option to bypass verification of ssl certificates
win32mbcs: Fix typo in documentation

Mercurial 1.7.4 (2011-02-01)

This is a scheduled bugfix release that smooths out some of the rough edged introduced with 1.7.3's HTTPS certificate verification.

bookmarks: always write undo file
bookmarks: respect rollbacks dryrun parameter
hgrc.5: mention that web.cacerts are run through util.expandpath
opener: force copy on 'a'ppend if nlinks() returns 0 (issue1922)
subrepo: compare svn subrepo state to last committed revision
subrepo: do not report known files inside repositories as unknown
url: 'ssh known host'-like checking of fingerprints of HTTPS certificates (see CACertificates)
url: check subjectAltName when verifying ssl certificate
url: expand path for web.cacerts
url: fix UnicodeDecodeError on certificate verification error
win32: add cacert.pem file to Inno Setup installer
win32: win32console.GetStdHandle() can return None

Mercurial 1.7.3 (2011-01-01)

This is a scheduled bugfix release.

archive: don't set gzip filename header when there's no filename
checknlink: use two testfiles (issue2543)
churn: ignore trailing and leading spaces (issue2546)
date: fix matching of underspecified date ranges
eol: improve help on whether EOLs are changed in working copy or repository
fncachestore: copy dh directory before the manifest
hgweb: abort if config file isn't found
hook: assume relative path to hook is given from repo root
hook: fix import path handling for repo=None
https: use web.cacerts configuration from local repo to validate remote repo
https: warn when server certificate isn't verified (see CACertificates)
keyword: copy: when copied source is a symlink, follow it
patch: write .rej files without rewriting EOLs
strip: typo bugfix related to '--nobackup -> --no-backup' rename (issue2377)
tag: abort if not at a branch head (issue2552)
tag: don't check .hgtags status if --local passed
tag: fix uncommitted merge check and error message (issue2542)
util: fix ellipsis() not to break multi-byte sequence (issue2564)
util: work around behavior change in Python 2.7.1
windows.rename: eliminate temp name race (issue2571)
wix: add an ssl certificate file to the WiX installers (see CACertificates)

Mercurial 1.7.2 (2010-12-01)

This is a scheduled bugfix release.

checknlink: return False if .hgtmp file preexists (issue2517)
commit: search both parents for missing copy revision (issue2484)
context: walk both parents for workingctx.ancestors()
convert/svn: fix changed files list upon directory replacements
hgwebdir: fix incorrect index generation for invalid paths (issue2023)
keyword: copy: when copied source is a symlink, follow it
mq: ignore subrepos (issue2499)
rebase: support --detach when null is common ancestor
subrepo: fix removing read-only svn files on Windows
subrepo: handle missing subrepo spec file as removed
subrepo: prune empty directories when removing svn subrepo
subrepo: use subprocess directly to avoid python 2.6 bug
util: do not crash on revisions with negative timestamp (issue2513)
util: do not recurse in makedirs if name is '' (issue2528)
win32mbcs: use extsetup() to wrap functions only once
wix: add support for x64 native MSI packages

Mercurial 1.7.1 (2010-11-15)

This is an unscheduled bugfix release. 1.7 clients broke support for pushing bookmarks with HTTP.

alias: fall back to normal error handling for ambigious commands (issue2475)
bundlerepository: get rid of temporary bundle files (issue2478)
bundlerepository: test self.tempfile field, not tempfile module
eol: exclude .hgtags file from eol translation (issue2493)
log: fix log -rREV FILE when REV isnt the last filerev (issue2492)
opener: check hardlink count reporting (issue1866)
pushkey: force HTTP POST on push and add tests (issue2489)
revlog: fix descendants() if nullrev is in revs
subrepo: test & fix svn subrepo removal
win32: remove try-catch block of GetModuleFileNameEx (issue2480)

Mercurial 1.7 (2010-11-01)

Core

filelog: improve cmp performances (issue2273)
patch: don't strip '#' lines from patch descriptions (issue2417)
patch: when native patching fails (ui.patch is not set), don't retry with an external tool
setup/hg: always load Mercurial from where it was installed.
setup: user-friendly error message if Python headers are missing
store: new unsupported and experimental parentdelta format (see UpgradeNotes)
store: encode first period or space in filenames (issue1713)
url: expand environment variables in [auth] settings (issue2328)
url: check validity (notBefore/notAfter) using OpenSSL (issue2407)

Commands

addremove: use similarity 100 by default
alias: add support for shell command aliases starting with '!' (see [alias] in hgrc(5))
backout: add --tool argument for specifying merge tool
backout: backout linearly by default instead of branching and merging (use --merge to get the former behaviour)
dispatch: properly handle relative path aliases used with -R (issue2376)
init: expand destination url as a configured paths
log: do not --follow file that is deleted and recreated later (issue732)
merge: don't detect copies as "divergent renames", make diagnostic message more helpful
merge: add --tool argument to merge and resolve
merge: handle no file parent in backwards merge (issue2364)
tags: do not fail if tags.cache is corrupted (issue2444)
templater: add "hex" filter and "children" keywords (see hg help templating)

Subrepos

support remapping of subrepository source paths (see [subpaths] in hgrc(5))
make add, diff, incoming, outgoing and status commands recurse into subrepos with --subrepos/-S
subrepo: add support for 'hg archive'
subrepo: fix status check on SVN subrepos (issue2445)

Revsets

add id() and rev() to allow explicit references to changes by hash or rev (see hg help revsets)
add min() function to complement max()
add present() function to avoid lookup errors on possibly missing changesets
rename tagged() to tag() and allow it to take an optional tag name
strip: add revsets support
add revsets support to bisect and update (issue1993)
bookmarks: add a bookmark([name]) revset for referencing bookmarks
transplant: add a transplanted(set) revset to get transplanted revisions

hgweb

add a help view for accessing the built-in documentation (see help link in hg serve)
let HTTPS serve use more compatible but less secure encryption
support very simple caching model (issue1845)

Extensions

color: better support for branches and mq guards
convert: handle closed branch heads in hg-hg conversion (issue2185)
convert: support darcs changelogs with bytes 0x7F-0xFF (issue2411)
convert: deprecate --authors in preference for --authormap
graphlog: support header and footer templates when using styles (issue2395)
keyword: do not expand at all during diff
keyword: support copy and rename
mq: extend support for the --mq argument to extension commands
mq: save qrefresh message for easy recovery in case it fails (issue2062)
mq: support hg qimport --existing --name renametothis thatexistingpatch, fix --force case on Windows
mq/qqueue: support renaming of active queue
mq/qqueue: add --purge option to delete a queue and its patches
pager: add global --pager=<auto/boolean> option
patchbomb: add --confirm option to show series details and ask for confirmation
patchbomb: let diffstat prompt only once with complete summary
progress: support rebase and patchbomb
rebase: re-add patches to mq repo after rebase
strip: add --keep flag to avoid modifying working directory during strip
strip: rename --nobackup option to --no-backup (issue2377)
strip: support stripping multiple revisions

contrib

mergetools.hgrc: add vimdiff
zsh completion: support bookmarks and patchbomb extensions
zsh completion: add qpush --move option

Windows

64-bit Inno Setup installer
handle spaces in path to Python (issue2074)

Mercurial 1.6.4 (2010-10-01)

This is a monthly bugfix release.

archive: set date to 1980 for very old zip files
bookmarks: fix _bookmarks/lookup() reentrancy issue (issue2016)
color: add win32 support for non-black background
context: fix filectx.undelete() (issue2388)
convert/darcs: handle non-ASCII metadata in darcs changelog (issue2354)
convert/svn: fix broken symlink renames in svn sink
core: use lexists() instead of exists() where appropriate
hgweb: Fix memory leak when using hg commands over http repositories
hgweb: correct Content-Type header values for archive downloads
log: include unmodified-in-merge files in log diff/stat (issue2383)
mq: always require --force when pushing patches (issue2363)
patch: do not overwrite broken untracked symlinks
patch: fix rename text to binary file (issue2400)
patch: fix target when patching broken symlinks (issue2368)
patch: upgrade to git patch when removing binary file
rename: do not overwrite existing broken symlinks
url: verify correctness of https server certificates (issue2407)
util: avoid using hashlib on Python < 2.5 (issue2278)
verify: fix "missing revlog!" errors for revlog format v0 and add test
win32: add Emacs scripts to Inno Setup installer
win32: add hgweb scripts to Inno Setup installer

Mercurial 1.6.3 (2010-08-26)

This is a monthly bugfix release. It includes several significant fixes, including a fix for a long-standing hardlink corruption issue on Windows (issue761).

alias: make shadowing behavior more consistent (issue2054)
bisect: better message for unrelated starting revisions
bookmarks: Check if the bookmark to delete exists on the remote
bookmarks: guard against listing bookmarks on unsupported repos
chunkbuffer: use += rather than cStringIO to reduce memory footprint
convert: Using --dest-type svn crashed, if the source repo used tags.
convert: properly set encoding for gnuarch converter
convert: use encoding.encoding instead of locale.getpreferredencoding()
encoding: improve handling of buggy getpreferredencoding() on Mac OS X
graphlog: mark --branch as incompatible with --graph
http basic auth: reset redirect counter on new requests (issue2255)
httprepo: decompress stream incrementally to reduce memory usage
log: fix the bug 'hg log --stat -p == hg log --stat'
mercurial.spec: gettext is a build requirement for getting proper localization
merge: drop reference to file contents after write
merge: move reverse-merge logic out of filemerge (issue2342)
merge: fix detection of conflict markers with checkconflicts enabled
mq: don't inherit default and default-push paths with --mq (issue2333)
resolve: updated help documentation for improved clarity
revlog: drop cache after use to save memory footprint
templatefilters: unnest uescape()
templates: add filenolink to raw style (issue2332)
url: expand vars in all [auth] settings (issue2328)
url: limit expansion to safe auth keys (Issue2328)
util: avoid using hashlib on Python < 2.5 (issue2278)
verify: initialize rp variable in case we hit out of memory
verify: reduce memory footprint when unpacking files
verify: report exceptions that don't have a str() method
win32: correctly break hardlinks on network drives (issue761)

Mercurial 1.6.2 (2010-08-02)

This release addresses a regression in the color extension.

color: pass write/write_err to win32print correctly (issue2312)
convert/progress: use plural and avoid retrieving
color: call correct superclass method in write_err

Mercurial 1.6.1 (2010-08-01)

This is a scheduled monthly minor bugfix release.

alias: ensure checksignature() is applied directly to the command (issue2286)
bash/zsh completion: use HGPLAIN when invoking hg (issue2297)
bookmarks: don't allow name to contain whitespaces only
bookmarks: ensure current bookmark is updated when specified with -r .
bundle: lookup revisions after addbranchrevs
color/progress: subclass ui instead of using wrapfunction (issue2096)
commit: only warn when reopening the workdir's branch
dispatch: give better error message when cwd doesn't exist (issue2293)
doc: make sure we use our own code for generating man pages
filelog: cmp: don't read data if hashes are identical (issue2273)
filelog: test behaviour for data starting with "\1\n"
hg.clone: fix branch value when passing a repo object (issue2267)
hgweb.wsgi: add a URL to the corresponding wiki documentation
hgwebdir: allow pure relative globs in paths
hgwebdir: use template paths configured in the hgrc (issue2281)
init: create target directory recursively
inotify: check all components of filenames against hgignore (issue884)
keyword: move collecting of [keyword] patterns to reposetup (issue2303)
log: fix missing diff output for hg log -p in subdirectory
log: follow filenames through renames (issue647)
mail: ensure that Python2.4 to 2.7 use the same header format
mercurial.spec: rename docutils to python-docutils in BuildRequires
mq: clarify the fact that qimport is trying to read a file
mq: cleanup status if applied mq is stripped (issue1881)
mq: fixed ENOENT when qrename to new/directory.patch
mq: reset self.added after the mq transaction instead of inside qimport
qpush --move: move the right patch even with comment lines
rebase: re-add patches to mq repo after rebase
revert: rename original to .orig instead of copying (issue2282)
revset: fix ancestor subset handling (issue2298)
runrst: try to be more helpful if docutils is not installed
tag: do not allow tag names to consist solely of whitespace (issue2307)
transplant: crash if repo.commit() finds nothing to commit

Mercurial 1.6 (2010-07-01)

(This release makes a couple small behavior changes, be sure to read UpgradeNotes!)

Core

addremove: optimize addremove -s100 by matching files by their SHA1 hashes
archive: auto-detect archive type by extension (issue2058)
commit: more friendly handling of new and closed named branches
hooks: provide pre- and post- hooks with parsed command line arguments
log: add --branch for filtering on named branch
log: add --stat for diffstat output
push: add --new-branch option to allow initial push of new branches
push: break infinite http recursion bug with Python 2.6.5 (issue2179)
rollback: add -n/--dry-run flag, report what's being rolled back
subrepo: various fixes
summary: report copies and renames and add subrepo status
tag: add -e/--edit option for modifying the commit message
revsets: introduce a powerful query language for specifying revisions, see the manpage or hg help revsets

Hgweb

unify and simplify hgweb.cgi and hgwebdir.cgi scripts
fix race in refreshing repo list (issue2188)
simplify hgweb.cgi, add help pointer
deliver shell hook output to client
allow --port=0 to specify "choose free port number automatically"
improved templater performance

Help

add new hgweb, glossary, and revsets topics
numerous improvements to help text

Extensions

acl: support for access control base on branches and user-defined or OS-level groups
acl: added support for pretxncommit, so that one can call the ACL hook at (?)
bookmarks: add support for pushing and pulling bookmarks
churn: add possibility to include/exclude paths
color: add support for Windows consoles
color: colorize based on output labels instead of parsing output
extdiff: add labels, read diff arguments from [merge-tools]
keyword: offer svn-like default keywordmaps
keyword: support (q)record
mq: add a line to hg summary
mq: qpush --move, reorder patch series and apply only the patch
progress: progress support for many more commands
rebase: add option to not commit after a collapsing

1.5.4 (2010-06-01)

This is a scheduled monthly minor bugfix release.

dispatch: include Python version in traceback
push: update help
status: avoid performance regression when no .hgsub is present
clone: fix performance issue with hardlinks and Windows shares
hgweb: fix race in refreshing repo list (issue2188)
hgrc: clarify that hgrc keys can be overridden and sections can be split
eol: new extension for managing file newlines based on a version controlled configuration file
pager: fork and exec pager as parent process with /bin/sh -c
rebase: stress that only local changesets should be rebased
convert/svn: close gettags() log stream (issue2196)
record: check that we are not committing a merge before patch selection

1.5.3 (2010-05-13)

This is an unscheduled bugfix release to fix issue2181 (commit generates traceback on Nonetype). Also included:

various improvements to SVN conversion support
minor doc improvements

1.5.2 (2010-05-01)

This is a monthly bugfix release with numerous minor fixes including:

Core

clone: fix URL too long problem with many heads
commands: revised documentation of 'default' and 'default-push'
copies: properly visit file context ancestors on working file contexts
diffstat: use ui.plain() instead of ui.interactive()
dirstate: fix in memory dirstate entries for 1-second race
dispatch: don't mangle ImportError abort messages
filemerge: use working dir parent as ancestor for backward wdir merge
hgrc.5: describe form of config values and mention lists as well
hgweb: fix attribute error in error response (issue2060)
log: document the new xml style
merge: correctly compute the flag for noexec filesystems
patch: don't look for headers in diff lines
push: fix bug in warning message selection
revlog: fix lazyparser.iter() to return all revisions (issue2137)
static-http: allow clone -r (issue2164)
subrepo: fix repo root path handling in svn subrepo
subrepo: propagate and catch push failures
templates: document missing template variables
util: fix default termwidth() under Windows
util: use an explicit prefix for checkexec/checklink temporary files

Extensions

convert/cvs: skip bad tags
convert/git: check status when reading output stream
convert/subversion: fix default URL checker prototype
mq: rewrite strip docstrings
mq: use util.unlink instead of os.unlink and os.removedirs
schemes: fix // breakage with Python 2.6.5 (issue2111)

1.5.1 (2010-04-01)

Core

improve warning on adding large files
expand ~ in auth filenames and aliases
several improvements to patch parsing
warn about attempts to use hg branch to switch branches
push: fix bug in prepush logic and its tests
hgweb: fix broken URLs of RSS/Atom feeds
subrepo: several bug fixes

Extensions

acl: added support for '*' (everyone) in user list
progress: use stderr instead of stdout
schemes: add Kiln On Demand to default schemes

1.5 (2010-03-06)

(This release makes a number of small behavior changes, be sure to read UpgradeNotes!)

Core

improved behavior for named branches with heads command
new XML output template for logs
import extract multiple patches from emails, mboxes, files, and URLs
new patch.eol=auto option to ignore patch line-endings while preserving target file endings.
new -b/--branch option for clone, bundle, incoming, outgoing, pull, and push
new server.validate option to validate completeness of pushed changesets
subrepos now has basic Subversion support
support for SSL server certificates and improved IPv6 support
the HGPLAIN environment variable makes output more stable for scripts

Extensions

new progress bar extension
mq: new --mq option to make regular commands operate on queue repository
mq: automatically upgrade conventional patches to git format where needed
color: add support for bookmarks, resolve -l, and churn --diffstat
convert: two CVS history editing hooks
win32mbcs: add configuration to specify path encoding
zeroconf: many bug fixes
rebase: new --detach option for rebase

Web Interface

improve navigation on log and graph pages
support for pluggable authorization
raw templates for tags/branches pages
add wsgi script for Microsoft IIS with isapi-wsgi

Windows

add WiX installer scripts to contrib/wix
handle configuration files in <install-dir>\hgrc.d
expand environment variables specified in merge tools paths

Help and Documentation

greatly improve error messages and command documentation
support extended documentation with --verbose
provide help for disabled extensions and commands

1.4.3 (2010-02-01)

This is a scheduled bugfix release.

Mercurial license has changed from GPLv2 to GPLv2+
speed up copy detection in merge, status, and diff
templates: fix relative path expansion on style setting
merge: fix merging of already-merged subrepos
summary: fix i18n issue reporting clean working directories
hgweb: improve IIS PATH_INFO handling
relink: Windows support

1.4.2 (2010-01-01)

This is a minor bugfix release.

core

config: raise ConfigError on non-existing include files
alias: do not crash when aliased command has no usage help text
auth: allow specifying auth sections in .hg/hgrc
patch: fix handling of chunk offsets
subrepo: add default path to new clones
docs: Fix rst2html detection

extensions

convert/svn: better handling of hg recursive call failure
convert/svn: make sink recover gracefully from empty changeset
keyword: fix interaction with transplant
mq: preserve --git flag when folding and merging patches
mq: qnew -f rejects merge working directories
mq: qpop: remove added files before re-adding removed files
patchbomb: handle repository#rev URLs correctly
share: use defaultdest to compute unspecified destination

1.4.1 (2009-12-01)

regression fixes

fix to prepush logic when it creates new heads
fix qseries truncation

other

doc fixes: formatting, missing options
tests fixes (now less dependent on environment variables)
inotify fixes
keyword: allow RCSfile like CVS
share: fix a bad interaction with clone
show non-default branch names with summary -q
new schemes extension
i18n updates

1.4 (2009-11-16)

core

summary: new command summarizes current working state
tags: new tag cache greatly speeds up tag operations
diff: new --stat option to show diffstat
diff: add --reverse option to diff
subrepo: fix a bunch of issues with the experimental subrepo extension
status: fixes for behavior when working with clock skew
clone: new -u/--updaterev option
templater: new latesttag and latesttagdistance keywords
push/pull: handle some broken pipe errors during large transfers
config: environment variables and ~user constructs are expanded in pathnames

hgweb

fix for showing header lines in raw changeset diffs
try to send better error messages to the client
use config-supplied ordering by default in hgwebdir index pages
add web.descend option to disable showing all nested repositories in hgwebdir

documentation and help

new config help topic
help texts are now written in reStructuredText format
many translation updates including a new Swedish translation
many help text updates and improvements

extensions

mq: add -1 options to qapplied/qunapplied
patchbomb: add a --flag option to set a flag value in the Subject header
patchbomb: correctly handle Unicode domains (using the IDNA encoding scheme)
color: improve colorization of the qseries command
inotify: cleaner code, fixed pattern handling
zeroconf: show repository descriptions
rebase: some performance and correctness fixes
extdiff: add 3-way diff for merge changesets
convert: handle directory renaming in Darcs, fixed file renaming
relink: new extension which helps people re-hardlink their clones

other

contrib/shrink-revlog.py script that can significantly shrink some internal hg files
work around non-standard locale settings on OS X

Version 1.3.1 - 2009-07-23

Regression fixes:

fixed excessive memory usage issues with diff and strip
fixed ssh performance issue on OS X
fixed slow calculation of branch heads
fixed handling of port numbers in URLs
fixed transaction handling exception
fixed incoming with graphlog extension
fixed slow commit in fetch extension
fixed loading of win32mbcs extension

Other fixes:

fixed http username handling in acl extension
fixed subrepo path joining on Windows
allow update --check to cross branches
miscellaneous small doc and bug fixes

Version 1.3 - 2009-07-01

Major Changes

experimental support for sub-repositories
Python 2.3 is no longer supported; now requires Python 2.4-2.6

Commands

merge: add -P/--preview option
update: don't unlink added files when -C/--clean is specified
update: added -c/--check option to abort on local changes
update: allow merges going backwards
push: improved handling of named branches
branches/heads: add a -c/--closed option to show closed branches
help: new extensions topic

General

add patch.eol config setting to work with cross-platform patches
fixed support for SSL through proxies
add ability to load hooks from arbitrary Python modules
hide passwords for HTTP repositories in error and log output
fix Python 2.6 support in the Windows installer
add mechanism for specifying HTTP authentication details in hgrc
prompts and choices are now shown even in non-interactive mode
performance improvements, especially on Windows
much improved zsh completion
improved Danish, Japanese, Italian and simplified Chinese translations
new German, French, Greek, Brazilian Portuguese and traditional Chinese translations

Web interface

read configuration data from webdir configs
add branches page to hgweb
pluggable templater engine support
refresh hgwebdir configuration periodically
let web.encoding override ui.encoding setting
deal with dicts/lists like webdir config paths

Extensions

experimental share extension
the alias extension has been moved into core
mq
- add -P/--push option to qimport
- numerous bug fixes
convert
- improved source detection
- support for comments in author maps
- add branch map support
- add different ordering options
- svn: support OS-specific authn providers
- svn: improved tag support
- git: add committer tag only when needed
- bzr: fix renaming support
- bzr: add support for filemaps
- bzr: handle timestamps correctly
- bzr: fix symlink handling
- bzr: restore paths to source encoding
- cvs: add support for CVS merge(point)s
- cvs: add support for synthetic revisions
- cvs: better support for branchpoints
- cvs: deprecate use of external cvsps
- mtn: improve renaming support
- mtn: support mtn database files as source
- mtn: improve date/time support
- p4: better handling of keywords, binary files and symlinks
rebase
- don't lose copy/rename info
- keep original mq patch format
zeroconf
- advertise repositories by hostname
- try to guess IP address if necessary
patchbomb
- option to set attachment name
- support for In-Reply-To header
inotify
- fix handling of untracked files moved out of repository
- fix support for directory deletion
acl: now works with push over https

Version 1.2.1 - 2009-03-20

This is a bugfix release.

fixed version number build from tarball
fix allow_read logic for hgweb
improve handling of damaged revlogs in verify
keep .orig files when resolving
clear resolve state properly when rebasing
improve --command handling with bisect
fix diff against bundles
improve fetch logic for inactive branches
fix diffstat with notify
fix 'synthetic file adds' in CVS conversion

Version 1.2 - 2009-03-04

This is a larger feature release.

General features:

explicit closing of named branches via hg commit --close-branch
hg now accepts options given after arguments on the commandline
added translation support with initial Danish, Chinese, Japanese, and Italian translations
added optional pure-Python versions of C modules
pending changesets can now be accessed safely from hooks
diff: added -c option to show single changeset
many improvements to the documentation and online help topics

Extensions:

convert:
- new support for perforce sources
- improvements to handling cvs sources
- improvements to handling gnu arch source
- improvements to handling darcs sources
bookmarks:
- set current to new when current is renamed
- bookmarks: Add track.current option
- bookmarks: add bookmarks to tags
mq: allow qpop when it won't invalidate any dirstate parents
patchbomb: respect diff settings
rebase: pull --rebase updates if there is nothing to rebase
bugzilla: updated to work with Bugzilla 3.2
zeroconf: added more documentation
hgk: add several color settings
the imerge extension has been removed (obsoleted by the resolve command)

Version 1.1.2 - 2008-12-31

This is a minor release including one security fix and two minor bug fixes

improve path auditing (issue 1450)
fix date-related test failures in test suite
add graph controls to monoblue theme

Version 1.1.1 - 2008-12-20

This is a bugfix release

make hgweb recursion optional (use '**' rather than '*')
fix fncache bug for directories ending in ' ' or '.'
require -a switch to resolve all files
improve help for resolve command
fix inotify interaction with bundle diffs
fix strange readline import error on Windows
fix non-existing target directory with git diffs
fix removing symlinks with git diffs
fix directory creation bug in patch
rebase: allow keeping branch names
fix a copy bug in the SVN converter

Version 1.1 - 2008-12-2

This is a larger feature release.

General:

Added 'resolve' command for better tracking of in-progress merges
Several speedups for status and diff commands (especially on Windows)
Some modules have been rewritten in C for greater speed
Compatibility with Python 2.6
Improved correctness in the face of casefolding filesystems
Fixed a possible race condition in pull
Fix support for context-size diff settings
Fixed several crashes on Windows related to code freezing
Don't complain when trying to load extensions twice
Allow C extensions to compile on Haiku
Allow for committing in-memory file contents
New repository format which limits path lengths in the store
Unclutter commands list by extracting extension commands into separate lists
static-http support is now a fallback for the general http support
Add some buffering to the templater
Better documentation on git diffs

Web interface:

Add a canvas-based repository graph
New and improved hgweb themes: paper, coal and monoblue
paper is now the new default style; the old default is now called 'spartan'
Better WSGI compliance
Collections now show nested repos (best used without a checkout)
diffs are more sensible, follow diff.git settings
Full author name available in annotate templates
Make it easier to add template paths in extensions
Support for allow_read/deny_read access controls
Working diff and file log for removed files
Better alternative for repository collections
Corrected feed link in gitweb theme
Fix a bug with CGIs running under IIS

Commands:

commit: print the revision ID when invoked with --verbose
resolve: new command to help keep track of merges
merge: only implicitly select same-branch heads
export: append instead of overwrite when exporting multiple changesets
bundle: added support for different compression types
rollback: clean up empty files
help: several more sections from the manual are available through hg help now
bisect: better documentation, give better feedback, option for scripted testing
branch: allow for resetting current branch name
patch: add a --similarity option to do rename/copy detection
tag: without a checkout, use tip as the tagging revision's parent
log: allow searching by user (with -u)
import: importing from URL now works with http authentication
unbundle: importing from URL now works
pull: with -u, still update if there's only one head on the current branch
diff: fix a problem with the --showfunc option

Extensions:

rebase: new extension to support rebasing changesets
bookmarks: new extension to provide (local-only) git-like branches
zeroconf: new extension to support publishing repositories through Zeroconf/Bonjour
hgcia: new extension to facilitate communication with CIA
mq:
- qfinish: added command for conversion of patches into changesets
- qpush/qgoto: gracefully abort when encountering guards
- qrefresh: don't lose work when interrupted
- qimport: allow for importing patches from URLs
- qnew: abort early if patch already exists, be more careful in general
- qdiff: now supports all diff options
- qfold: more tolerance of file removals, better handling of commit messages
- import: prevent import from working when patches are applied
convert:
- added support for conversion from bzr repositories
- incorporate an improved Python version of cvsps, replacing the external cvsps tool (see upgrade notes)
- compatibility with recent git releases
- add an option to start from an arbitrary revision
- correctly encode characters in Subversion repository URLs
- better, more tolerant tags detection
highlight:
- remove need to pre-generate CSS stylesheet
- compatibility with older Pygments versions
- make the lexer guessing faster by not reading all of the file
- allow demandimport to load it incrementally
fetch: improve support for named branches
graphlog:
- now adds --graph options to log, incoming and outgoing
- fix calls from outside the repository
inotify:
- many bugfixes, should work much better
- daemon is automatically started by default
color:
- add colorization of diffs
- add --color options to many commands
keywords: be more careful about expanding binary files
bugzilla: added support for Bugzilla 3.0
pager: allow per-command configuration
hgk: display branch names for revisions
churn: support for templated statistics report generation
patchbomb: charset encoding can now be configured
notify: charset encoding can now be configured

Version 1.0.2 - 2008-08-13

This is a relatively small bugfix release with two security fixes.

Security:

ensure that git patches only touch files within the repository (CVE-2008-2942)
hgweb: fix "allowpull" permission being ignored when pulling from hgweb

General:

commit: handle copies of previously deleted files (issue 1175)
bisect: allow for having multiple resulting changesets
fix Python 2.3 compatibility
make mq patches and .hgtags hardlink-safe again
various documentation improvements and fixes
fix a crash when addremove was called to replace a deleted directory with a symlink
make branches output easier to parse (issue 1230)
fix inactive branches detection (issue 1104)
hgweb: fix a crash in archive when the URL did not end in an expected archive type
sshserver: fix a crash in error handling code
fix the patchbomb extension on Windows by including email package in binary installations
handle symlinks when OS supports them but FS doesn't (issue 1149)

Extensions:

mq:
- fix qrefresh losing metadata on the last refreshed file (issue 1134)
- fix a crash when renaming a patch just after a versioned queue initialization
- fix the path of an explicitly specified queue when merging patches
- strip now updates the working directory only if a parent was stripped
convert:
- CVS: fix a crash when converting an existing working copy
- monotone: fix quotes and backslashes parsing when reading commit messages
- Subversion: correctly normalize paths and slashes
- Subversion: fix compatibility with Subversion 1.5
- git: allow converter to work with recent git releases
color:
- get coloring for qseries --verbose output
- improve mq extension detection
- reset coloring before and after outputting colorized lines
highlight: fix a performance issue when detecting file types from large files
notify: take the diff options into account

Version 1.0.1 - 2008-05-22

This is a relatively small bugfix release.

General:

several improvements in file copying implementation
allow different default value for diff.unified option
allow explicit use of internal merge tools

Commands:

rename: doesn't unlink source file with --after
backout: reverse changeset belongs on current branch

Extensions:

convert:
- svn: improved detection of tags (has also become optional)
- svn: improved branch handling
- svn: better detection of file copies
mq:
- expand terse command help texts
- fix unimplemented qdiff -U option
highlight: fix compatibility with older Pygments (0.5.1)
churn: allow whitespaces as delimiter in aliases
pager: disable when used with --debugger

Version 1.0 - 2008-03-24

General:

greatly improved merge tool configuration, see "hgrc.5.txt" for details
improved copy/rename handling in diffs, status, and merge
files in .hg inherit permissions from .hg/store
infer --repository when possible, so commands may be run from anywhere.
easy-installable
new "droplet" logo

Commands:

archive: disable ".hg_archival.txt" file addition with "ui.archivemeta"
bisect: now built-in with greatly improved performance and usability
bundle: new --all option to bundle the whole repository more easily.
cat: apply decode filters with --decode
clone: can clone from a full-history bundle
commit: warn when creating a new head
debugancestor: index argument is now optional
diff: set the number of context line to show with -U/--unified
grep: display matched revisions commit date with --date
import: new --no-commit and --user options
incoming/outgoing: add --limit option
log: use -b/--only-branch to show revisions of a single branch
remove: improve handling for --after
revert: major speedup
serve: prefix the served path with --prefix (also in [web] section)
status: unknown files are skipped by --quiet
tag: allow multiple tags to be added or removed
tags: --verbose flags local tags
update: switch between named branches without -C

Extensions:

churn: promoted to an official extension (previously in contrib)
color: new extension coloring "status" and "qseries" command outputs
convert:
- allow synthetic history to be spliced in with --splicemap
- support GNU Arch and Monotone sources
- svn: allow shallow conversions of single branches with convert.svn.startrev option.
- svn: make trunk/branches/tags layout detection more flexible by allowing either of them to be skipped.
- svn: preliminary support as a conversion target
hgk: configuration file changed from .gitk to .hgk
highlight: new extension enabling syntax highlighting in hgweb file view (requires pygments)
inotify: new extension using Linux 2.6 inotify API for instant status checking
keyword: new extension for filewise RCS-keyword expansion in working directory
mq: new --currentdate, --date, --currentuser, and --user options
record: add "qrecord" command when used with mq
win32mbcs: new extension dealing with problematic MBCS behavior on Windows

Web interface:

improved WSGI integration and compatibility
follow symlinks in hgwebdir collections
show branches in most of gitweb templates
add line anchors to annotate, changeset, diff and file views
support web.baseurl in hgwebdir, overriding SCRIPT_NAME

Hooks:

standard hook to reject text files with CRLF in win32text extension
redirect stdout to stderr for ssh and http servers

Windows support:

"hg" script output set to binary mode for redirecting diff, export, annotate, etc.
also search for .hgrc if mercurial.ini cannot be found
major speedup of "clone --pull"

Version 0.9.5 - 2007-10-19

New features:

Handle symlinks on systems without symlink support
hg archive supports symlinks
Display executable/symlink bit with "hg manifest -v" (see UpgradeNotes)
Improved hg verify diagostics
Faster revlog handling
Faster handling of large directories
Greatly improved handling of large files
Atom syndication support in hgweb
Improved test suite with parallel execution

Fixes:

Fixes for some file copy and rename corner cases
Allow moving newly-added files before commit
Improve hg diff whitespace handling
Disallow fast-forward merge with an ancestor
Fix adding untracked files on directory renames
Fix hg archive %r format specifier
Fix re: and glob: patterns in .hgignore
Improve hg executable path resolution
Many options and hgrc parsing improvements
Better handling of VFAT filesystems on Linux
Fix tgz archival on Windows
Fix hg serve on Windows requiring pywin32 modules
Fix --profile under Windows

New extensions:

alias - allow user-defined command aliases
children - show the children of the given or working dir revision
imerge - incremental interactive merging
interhg - modify changelog text as in InterWiki
record - darcs-style interactive change selection during commit

New extension features:

convert
- Now supports Subversion, Darcs and Mercurial as source SCMs
- Use clone's behaviour for the default destination name
- Force encoding to UTF-8 for converted repository
- Support new-style .cvspass file format
- Filter the files and directories to import
- Remap paths to new locations during import
hgk
- Fix hgk stopping because of untrusted repository warnings
- Handle filenames with spaces
- Improved documentation
mq
- Autodetect --git patches on qrefresh

Version 0.9.4 - 2007-06-25

New features:

support for symlinks
improved tag handling
improved merge handling of file and directory renames
improved named branch usability
numerous improvements to commands
generic pre- and post-command hooks
improved Windows support
basic BeOS and OpenVMS support
numerous bug fixes

New extensions and contributions:

extensions can now be specified in .hg/hgrc
new convert extension with CVS support
new graphlog extension
improved patchbomb extension
example FastCGI script

Version 0.9.3 - 2006-12-17

Bug fixes:

fix a merge copy/rename corner case
fix spurious new heads message with push -r
fix hg export %n sequence numbers
fix shell quoting on Windows
fix charset encoding for hgwebdir and obfuscated addresses
fix missing generated files for distribution tarball
fix convert-repo tag updates and transcoding of committer
add instructions for redoing failed merges

Documentation fixes:

hg cat, manifest, and tag default to current parent revision.
CGI stub comments clarified
corrected synopses for many commands
improve doc building and distribution
convert-repo: update usage information

Extension fixes:

mq: fix strip on Windows
mq: fix some guards corner cases
gpg: make 'hg sign' default to current parent

Version 0.9.2 - 2006-12-10

New features:

merge now follows renames and copies
new layout protects against case-insensitivity issues
new branch and branches commands for managing named branches
push command accepts -r for pushing specified heads or named branches
proper storage of changelog and other metadata in UTF-8
log, annotate and grep --follow follow renames and copies
date parsing is improved and log, update, and revert now accept --date ranges
additional command options for log, status, addremove
improved schema for hgweb URLs
bundle can now use -r and --base removing the need of an base repository
support for git-style extended patches with --git option
new debuginstall command to check for common installation issues

New contributions and extensions:

mq
- support for quilt-style guards
- can import existing changesets into mq (qimport -r) or commit mq patches as regular changesets (qdel -r)
- edit the log message with qrefresh -e
- rename patches with qrename
- qheader to display the patch header of particular patches, and --summary for qseries, qapplied, qunapplied and qtop
- combine patches with qfold
- qrefresh supports pattern options to import only a subset of the changes into a patch, to help split changes into multiple patches
- patch names for applied patches act like local tags, and can be used in the revision arguments of any hg command
hgk
- browse a subset of the entire history with --limit and revision range arguments
- shows revision numbers as well as node hashes
churn: graph lines of code changed per user over a range of history
patchbomb: generate inline attachments with -a

Behavior changes:

hg cat defaults to the working directory revision rather than tip
hg manifest no longer shows internal file revision hashes by default
hg revert now requires the -a flag to revert all files

Developer notes:

new high-level API functions in the hg module
new context API simplifies many operations
The changelog can now include arbitrary metadata in key: value form

Version 0.9.1 - 2006-07-24

These are the major changes between Mercurial 0.9 and 0.9.1:

New features:
- You can now configure your hgweb server to let remote users push changes over http.
- You can now import a patch in a mail message by saving the mail message, and importing it. This works for patches sent either inline or as attachments.
- The diff command now accepts -rA:B syntax as a synonym for -r A -r B, and adds -b and -B options.
New contributions and extensions:
- The acl extension lets you lock down parts of a repository against incoming changes
- The extdiff extension lets you run your favourite graphical change viewer
- Comprehensive integration with the vim editor
- A restricted shell for ssh-hosted repositories
- An importer for darcs repositories
New hooks added:
- preupdate is run before an update or merge in the working directory.
- update is run after an update or merge in the working directory.
Behaviour changes:
- NOTE: Mercurial as installed by the Windows binary installer no longer performs automatic line-ending conversion for Unix/Linux compatibility. To re-enable this feature, edit your mercurial.ini file after you upgrade.
- The Windows binary installer now automatically adds hg to your %PATH%.
- The backout command now runs an editor by default, to let you modify the commit message for a backed-out changeset.
- An earlier problem with parsing of tags has been fixed. This makes tag parsing slower but more reliable.
Memory usage and performance improvements:
- The remove command has been rewritten to be hundreds of times faster in large repositories.
- It is now possible to clone a repository very quickly over a LAN, if the server is configured to allow it. See the new server section in the hgrc documentation.
Other changes of note:
- Mercurial will now print help for an extension if you type hg help EXT_NAME.
- The usual array of bug fixes and documentation improvements.
- The integrated web server is now more WSGI-compliant.
- Work has begun to solidify Mercurial's API for use by third-party packages.

Version 0.9 - 2006-05-10

Release announcement.

These are the major changes between Mercurial 0.8.1 and 0.9:

The repository file format has been improved.
- This has resulted in an average 40% reduction in disk space usage.
- The new format (called RevlogNG) is now the default.
- Mercurial works perfectly with both the old and new repository file formats. It can transfer changes transparently between repositories of either format.
- To use the new repository format, simply use hg clone --pull to clone an existing repository.
- Note: Versions 0.8.1 and earlier of Mercurial cannot read RevlogNG repositories directly, but they can clone, pull from, and push to servers that are serving RevlogNG repositories.
Memory usage has been improved by over 50% for many common operations.
Substantial performance improvements on large repositories.
New commands:
- archive - generate a directory tree snapshot, tarball, or zip file of a revision
Deprecated commands:
- addremove - replaced by add and remove --after
- forget - replaced by revert
- undo - replaced by rollback
New extensions:
- Bugzilla integration hook
- Email notification hook
Nested repositories are now supported. Mercurial will not recurse into a subdirectory that contains a .hg directory. It is treated as a separate repository.
The standalone web server, hg serve, is now threaded, so it can talk to multiple clients at a time.
The web server can now display a "message of the day".
Support added for hooks written in Python.
Many improvements and clarifications to built-in help.

Version 0.8.1 - 2006-04-07

Released 2006-04-07.

New extensions:
- mq (manage a queue of patches, like quilt only better)
- email (send changes as series of email patches)
New command: merge (replaces update -m)
Improved commands:
- log (--limit option added)
- pull and push (-r works on specific revisions)
- revert (rewritten, much better)
Comprehensive hook support
Output templating added, supporting e.g. GNU changelog style
Windows, Mac OS X: prebuilt binary packages, better support
Many reliability, performance, and memory usage improvements

Version 0.8

Major changes from 0.7 to 0.8:

 faster status, diff, and commit
 reduced memory usage for push and pull
 improved extension API
 new bisect, gpg, hgk, and win32text extensions
 short URLs, binary file handling, and optional gitweb skin for hgweb
 numerous new command options including log --keyword and pull --rev
 improved hooks and file filtering

Version 0.7

Changes from 0.6 to 0.7:

core
 greatly improved merge logic
 improved copy/rename support (still experimental)
 automatic binary file handling
 generic file filtering support
 support for user-defined hooks (aka triggers)
 support for local tags and finding branches with tags
 numerous performance improvements
command line
 fewer long, confusing hashes to deal with
 new commands: clone, revert, incoming/outgoing, bundle/unbundle, grep, rename
 more powerful path handling with most commands
 improved push and pull support
 support for plug-in extensions
 much improved exception handling and debugging support
 many new command options and settings
web interface
 more conformant and compatible HTML output
 built-in RSS feeds
 fast multiple keyword search
 easy to set up multiple repository interface
 configurable support for downloading tarballs and zip files
 improved configurability
 IPv6 support
documentation
 improved built-in help and man pages
 a greatly expanded wiki
 tutorials in multiple languages
portability
 full support for Windows, including hardlinking and file filtering
 should easily compile and install on any modern UNIX
 binary packages available for many systems
extras
 powerful bash completion support
 Emacs integration
 updated hgk
and more
 expanded test suite
 numerous bug fixes and cleanups

Changes from 0.6c to 0.7:

core
 improved merge logic
 improved copy/rename support (still experimental)
 automatic binary file handling
 generic file filtering support
 various performance improvements
command line
 new bundle/unbundle commands for exchanging native updates
 more natural support for remove, copy, and rename
 faster, more powerful log command
 new grep command for searching entire history
 support for plug-in extensions
 improved exception handling and debugging facilities
hgweb
 optional downloading of tarballs and zip files
Windows support
 hardlinking support
 newline conversion through file filtering
contrib
 updated hgk

-  ⇤ ← Revision 29 as of 2017-10-01 11:10:51 → 
  Size: 230416
  Editor: rcl
  Comment: Added release notes for remaining 3.x versions
+   ← Revision 30 as of 2019-02-02 17:14:07 → ⇥
  Size: 290075
  Editor: rcl
  Comment: archive entries older than version 4.7
-Deletions are marked like this.
+Additions are marked like this.
 Line 6:
+== Mercurial 4.6.2 (2018-07-03) ==

This is a regularly-scheduled bugfix release containing following fixes:

 * merge: do not fill manifest of committed revision with pseudo node (Bts:issue5526)
 * crecord: fix line number in hunk header (Bts:issue5917)
 * lazymanifest: don't crash when out of memory (Bts:issue5916)
 * procutil: use unbuffered stdout on Windows

== Mercurial 4.6.1 (2018-06-06) ==

This is a regularly-scheduled bugfix release that also contains security fixes.

=== Security Fixes ===

Multiple issues found in mpatch.c with a fuzzer:

 * OVE-20180430-0001 / CVE-2018-13348
 * OVE-20180430-0002 / CVE-2018-13347
 * OVE-20180430-0004 / CVE-2018-13346

With the following fixes:

 * mpatch: be more careful about parsing binary patch data (SEC)
 * mpatch: protect against underflow in mpatch_apply (SEC)
 * mpatch: ensure fragment start isn't past the end of orig (SEC)
 * mpatch: fix UB in int overflows in gather() (SEC)
 * mpatch: fix UB integer overflows in discard() (SEC)
 * mpatch: avoid integer overflow in mpatch_decode (SEC)
 * mpatch: avoid integer overflow in combine() (SEC)

No exploits are known at the time, however, it is highly recommended that all users upgrade.

=== Bug Fixes ===

Also included in this release are the following,

 * zstandard: pull in bug fixes from upstream 0.9.1 (Bts:issue5884)
 * bundle2: fix old clients from reading newer format (Bts:issue5872)
 * bdiff: fix xdiff long/int64 conversion (Bts:issue5885)
 * push: continue without locking on lock failure other than EEXIST (Bts:issue5882)
 * lfs: fix crash in command server (Bts:issue5902)
 * hghave: fix deadlock in test runner
 * rebase: fix error when computing obsoletenotrebased (Bts:issue5907)
 * rebase: prioritize indicating an interrupted rebase over update (Bts:issue5838)
 * revset: pass in lookup function to matchany() (Bts:issue5879)


== Mercurial 4.6 (2018-05-06) ==

[[Release4.6|Full release notes]] are available. This is a regularly-scheduled quarterly feature release.

=== New Features ===

==== pullbundles ====

Pullbundles allow the server to answer client requests using pre-built bundles. This is different from the existing clonebundle feature:

 * pullbundles can be used for both the initial clone and later pull operations
 * pullbundles can be used incrementally, i.e. to cover the changes up to the start of the current month as one bundle and the remaining changes as second bundle
 * the bundle is transferred inline as part of the existing connection without a secondary server

Pullbundles are only used for clients running Mercurial 4.6 as well.

==== push ====

If 'server.streamunbundle' option is enabled, the server will directly apply the changes send by the changes. This avoids potentially large temporary files on the server side. It can also prevent concurrent pushes.

==== notify extension ====

The 'maxdiffstat' option can be used to truncate long file lists similar to 'maxdiff' for the patch part of the email.

==== hgweb ====

hgweb now shows date and user for operations that resulted in obsolete commit(s). For unstable commits, it shows the exact reason why they are considered unstable.

`Server:` header is now configurable using `web.server-header` option.

==== templates ====

A new template keyword 'reporoot' which shows the root directory of the current repository.
A new template function 'mailmap' which maps author fields based on values in a .mailmap file.

==== Other notable features ====

 * revset: parse error now shows a hint where the error occurred
 * templates: parse error now shows a hint where the error occured
 * forget: new '--dry-run' and '--interactive' flags
 * copyfile: preserve stat info (mtime, etc.) when doing copies/renames
 * bundle2 format is documented and can be found using 'hg help internals.bundle2'

=== Backwards Compatibility Changes ===

 * Support for connecting to Mercurial servers older than 0.9.1 has been removed.

 * Working-directory commands now respect "-X PATTERN" no matter if PATTERN matches explicitly-specified FILEs. For example, "hg add foo -X foo" no longer add the file "foo".

 * Support for the experimental manifestv2 format has been removed, as it was never completed and failed to meet expectations.

 * '{' in output filename passed to archive/cat/export is taken as a start of a template expression.

 * The HTTP wire protocol server no longer accepts the "cmd" argument to control which command to run via HTTP POST bodies. The "cmd" argument must be specified on the URL query string.

 * Hgweb no longer reads form data in POST requests from multipart/form-data and application/x-www-form-urlencoded requests. Arguments should be specified as URL path components or in the query string in the URL instead.

 * Query string shorts in hgweb like "?cs=@" have been removed. Use URLs of the form "/:cmd" instead.

 * The HTTP client no longer accepts text/plain and application/hg-changegroup Content-Type values as a valid Mercurial command response. These should only be encountered on pre 1.0 Mercurial servers.

=== Performance Improvements ===

 * 'hg manifest --all' is likely slower due to changing its implementation to respect storage interface boundaries. If you are impacted by this regression in a meaningful way, please make noise on the development mailing list and it can be dealt with.

 * 'hg diff' is much faster for larger repositories. 40% improvements have been reported. Other operations using diffs like hgweb also benefit.

=== Bug Fixes ===

 * grep: fixes erroneous output of grep in forward order (Bts:issue3885)
 * dirstate: drop explicit files that shouldn't match (BC) (Bts:issue4679)
 * procutil: rewrite popen() as a subprocess.Popen wrapper (Bts:issue4746) (API)
 * bookmarks: test for exchanging long bookmark names (Bts:issue5165)
 * templater: drop symbols which should be overridden by new 'ctx' (Bts:issue5612)
 * clone: updates the help text for hg clone -{r,b} (Bts:issue5654)
 * bundle: updates the help text for hg bundle (Bts:issue5744)
 * histedit: make histedit's commands accept revsets (Bts:issue5746)
 * releasenotes: replace abort with warning while parsing (Bts:issue5775)
 * context: skip path conflicts by default when clearing unknown file (Bts:issue5776)
 * templatekw: switch most of showlist template keywords to new API (Bts:issue5779)
 * rebase: do not consider extincts for divergence detection (Bts:issue5782)
 * revert: use an exact matcher in interactive diff selection (Bts:issue5789)
 * subrepo: don't attempt to share remote sources (Bts:issue5793)
 * lfs: respect narrowmatcher when testing to add 'lfs' requirement (Bts:issue5794)
 * showconfig: allow multiple section.name selectors (Bts:issue5797)
 * annotate: do not poorly split lines at CR (Bts:issue5798)
 * convert: avoid closing ui.fout in subversion code (Bts:issue5807)
 * setdiscovery: back out changeset 5cfdf6137af8 (Bts:issue5809)
 * fsmonitor: layer on another hack in bser.c for os.stat() compat (Bts:issue5811)
 * notify: access the initial revision on an unfiltered repository (Bts:issue5821)
 * rebase: fix issue 5494 also with --collapse
 * date: fixed a bug in parsing months like 'Feb 2018', 'Apr 2018'
 * diffhelper: rename module to avoid conflicts with ancient C module (Bts:issue5846)
 * infinitepush: ensure fileindex bookmarks use '/' separators (Bts:issue5840)
 * import: fix crash on --exact check of empty commit (Bts:issue5702)
 * hgweb: reuse body file object when hgwebdir calls hgweb (Bts:issue5851)
 * debugcolor: fix crash by empty styles (Bts:issue5856)
 * hgweb: discard Content-Type header for 304 responses (Bts:issue5844)
 * hgweb: allow Content-Security-Policy header on 304 responses (Bts:issue5844)
 * paper: don't register click handlers with inline javascript (Bts:issue5812)
 * httppeer: detect redirect to URL without query string (Bts:issue5860)
 * filelog: don't crash on invalid copy metadata (Bts:issue5748)


=== New experimental features ===

Each release there are lot of new features added which are hidden under the EXPERIMENTAL tag as the behavior may change in future or the feature is not complete yet. The experimental features added in this cycle are:

==== narrow extension ====

Allows to create clones which fetch history data for only a subset of files. This experimental extension is now distributed with Mercurial.

==== remotenames extension ====

Shows `remotebookmarks` and `remotebranches` in the UI. This experimental extension is now distributed with Mercurial.

==== infinitepush extension ====

Allows to store some pushes in a remote blob store on the server and to serve commits from remote blob store. The revisions are stored on disk or in everstore, the metadata are stored in sql or on disk. This experimental extension is now distributed with Mercurial.

==== fix extension ====

Allows to rewrite file content in changesets or working copy. For example, automatically applying formatting fixes to modified lines of code. This experimental extension is now distributed with Mercurial.

==== lfs extension ====

An alternative to the largefiles extension, which uses the git-lfs protocol. This experimental extension is now distributed with Mercurial.

=== API Changes ===

 * Content from mercurial.hgweb.protocol has been moved to mercurial.wireprotoserver.

 * Content from mercurial.sshserver has been moved into mercurial.wireprotoserver.

 * sshserver no longers looks for wire protocol command handlers in methods named `do_<command>`. Use `@wireproto.wireprotocommand` to declare wire protocol command handler functions.

 * Log-related utility functions has been renamed as follows:

   - cmdutil.loglimit -> logcmdutil.getlimit

   - cmdutil.diffordiffstat -> logcmdutil.diffordiffstat

   - cmdutil._changesetlabels -> logcmdutil.changesetlabels

   - cmdutil.changeset_printer -> logcmdutil.changesetprinter

   - cmdutil.jsonchangeset = logcmdutil.jsonchangeset

   - cmdutil.changeset_templater -> logcmdutil.changesettemplater

   - cmdutil.logtemplatespec -> logcmdutil.templatespec

   - cmdutil.makelogtemplater -> logcmdutil.maketemplater

   - cmdutil.show_changeset -> logcmdutil.changesetdisplayer

   - cmdutil.getlogrevs -> logcmdutil.getrevs

   - cmdutil.getloglinerangerevs -> logcmdutil.getlinerangerevs

   - cmdutil.displaygraph -> logcmdutil.displaygraph

   - cmdutil.graphlog -> logcmdutil.graphlog

   - cmdutil.checkunsupportedgraphflags -> logcmdutil.checkunsupportedgraphflags

   - cmdutil.graphrevs -> logcmdutil.graphrevs

   - cmdutil._makenofollowlogfilematcher -> logcmdutil._makenofollowfilematcher

 * The following deprecated methods have been removed from context, with replacements:

   - unstable() -> orphan()

   - bumped() -> phasedivergent()

   - divergent() -> contentdivergent()

   - troubled() -> isunstable()

   - troubles() -> instabilities()

 * The following deprecated methods have been removed from obsolete, with replacements:

   - _addprecursors() -> _addpredecessors()

   - obsstore.precursors -> obsstore.predecessors

   - allprecursors() -> obsutil.allprecursors()

   - allsuccessors() -> obsutil.allsuccessors()

   - marker() -> obsutil.marker

   - getmarkers() -> obsutil.getmarkers()

   - exclusivemarkers() -> obsutil.exclusivemarkers()

   - foreground() -> obsutil.foreground()

   - successorssets() -> obsutil.successorsset()

   - unstable() -> orphan()

   - bumped() -> phasedivergent()

   - divergent() -> contentdivergent()

 * The following deprecated methods have been removed from obsutil: `marker.precnode()` and `allprecursors()`.  Use `marker.prednode()` and `allpredecessors()` instead.

 * `beginparentchange()` and `endparentchange()` have been replaced by the `parentchange` context manager.

 * The deprecated `localrepo.walk()` has been removed, and replaced by `repo[node].walk()`.

 * The following deprecated methods have been removed from bookmarks: `__setitem__()`, `__delitem__()`, `update()`, and `recordchange()`.  Use `bookmarks.applychanges()` instead.

 * The `cmdutil._revertprefetch()` hook point for prefetching stored files has been replaced by the command agnostic `cmdutil._prefetchfiles()`.  The new function takes a list of files, instead of a list of lists of files.

 * `sshpeer.sshpeer.__init__` now receives arguments describing an existing connection instead of creating a connection itself.

 * `sshpeer.sshpeer` renamed to `sshpeer.sshv1peer`.

 * `wireproto.pushres` and `wireproto.pusherr` now explicitly track stdio output.

 * `redirect()` and `restore()` have been removed from the wire protocol handler interface. Use `mayberedirectstdio()` instead.

 * The `_client()` method of the wire protocol handler interface has been renamed to `client()`.

 * Wire protocol command handlers now return a `wireprototypes.bytesresponse` instead of a raw bytes instance. Protocol handlers will continue handling bytes instances. However, any extensions wrapping wire protocol commands will need to handle the new type.

 * SSH protocol handler now advertises its name internally as "ssh-v1" instead of "ssh."

 * File prefetching is now handled by registering a callback with `scmutil.fileprefetchhooks`.

 * HTTP protocol handlers now advertises its internal name as "http-v1" instead of "http".

 * `context.basectx` no longer implements `__int__`. Context instances will no longer cast to ints. Consumers should call `ctx.rev()` instead.

 * `templatekw.showdict()` and `showlist()` are deprecated in favor of new `(context, mapping)` API. Switch the keyword function to new API and use `templatekw.compatdict()` and `compatlist()` instead.

 * `hgweb_mod.perms` and `wireproto.permissions` have been removed. Wire protocol commands should declare their required permissions in the `@wireprotocommand` decorator.

 * The WSGI request object no longer exposes a `form` attribute containing parsed query string data. Use the `qsparams` attribute instead.

 * `hgweb.hgweb_mod.permhooks` no longer take a `wsgirequest` instance as an argument.

 * hgweb `@webcommand` functions must use the new response object passed in via "web.res" to initiate sending of a response. The hgweb WSGI application will no longer start sending the response automatically.

 * Various helper functions in hgweb.webutil no longer accept a templater instance. Access the templater through the "web" argument instead.

 * Various functions in hgweb.webutil now take a modern request object instead of "wsgirequest".

 * `@webcommand` functions now only receive a single argument. The request and templater instances can be accessed via the "req" and "templater" attributes of the first argument. Note that the request object is different from previous Mercurial releases and consumers of the previous "req" 2nd argument will need updating to use the new API.

 * The old "wsgirequest" class for handling everything WSGI in hgweb has been replaced by separate request and response types. Various high-level functions in the hgweb WSGI applications now receive these new types as arguments instead of the old "wsgirequest" type.

 * The `render(mapping)` method of the templater has been renamed to `renderdefault(mapping)`.

 * `httppeer.httppeer.__init__` now takes additional arguments. Instances should be obtained by calling `httppeer.instance()` or `httppeer.makepeer()` instead.

 * The templater is no longer callable. Use `templater.generate(t, mapping)` instead of `templater(t, **pycompat.strkwargs(mapping))`.

 * `templatekw._showlist()` is deprecated in favor of `templateutil._showcompatlist()`, which takes `context` in place of `templ`.

 * Several generic string helper functions have been moved to utils.stringutil module.

 * The `util.Abort` alias has been removed. Use `error.Abort`.

 * `merge.update()` and `merge.applyupdates()` now return a class with named attributes instead of a tuple. Switch consumers to access elements by name instead of by offset.

 * Utility functions related to process/executable management have been moved to utils.procutil module.

 * localrepo.localrepository.featuresetupfuncs has been renamed to localrepo.featuresetupfuncs.

 * localrepo.localrepository.filterpats was renamed to localrepo.localrepository._filterpats.

 * Template filters should declare input data type and/or catch `AttributeError`, `ValueError`, `TypeError`, etc. as needed. See the doc of "registrar.templatefilters" for details.

 * "wireproto" module no longer re-exports various types used to define responses to wire protocol commands. Access these types from the "wireprototypes" module.

 * `filelog.parsemeta()` and `filelog.packmeta()` have been moved to the revlog module.

 * `procutil.popen()` no longer supports text mode I/O.

 * `hook.hook()` and `hook.runhooks()` may return a negative integer to denote that the process was killed by signal.

 * `filelog.filelog` is now a standalone class and doesn't inherit from revlog. Instead, it wraps a revlog instance at `self._revlog`. This change was made in an attempt to formalize storage APIs and prevent revlog implementation details leaking through to callers.

 * The `fp` argument is removed from `cmdutil.export()`. Use `cmdutil.exportfile()` instead.

 * `cmdutil.export()` takes a formatter as an argument.

 * `patch.extract()` is now a context manager. Callers no longer have to worry about deleting the temporary file it creates, as the file is tied to the lifetime of the context manager.

 * The wire protocol peer's `iterbatch()` for bulk executing commands has been removed. Use `peer.commandexecutor()` instead.


== Mercurial 4.5.3 (2018-04-04) ==

This is a regularly-scheduled bugfix release.

=== Bug Fixes ===
 * rebase: on abort, don't strip commits that didn't need to be rebased (Bts:issue5822)
 * hgweb: garbage collect on every request
 * amend: abort if unresolved merge conflicts found (Bts:issue5805)

== Mercurial 4.5.1 / 4.5.2 (2018-03-06) ==
(4.5.2 was released immediately after 4.5.1 to fix a release oversight.)

This is a regularly-scheduled bugfix release.

=== Security Fixes ===
All versions of Mercurial prior to 4.5.2 have vulnerabilities in the HTTP server that allow permissions bypass to:

 * Perform writes on repositories that should be read-only
 * Perform reads on repositories that shouldn't allow read access

CVE-2018-1000132 has been assigned these vulnerabilities.

The nature of the vulnerabilities is:

 1. Wire protocol commands that didn't explicitly declare their permissions had no permissions checking done. The `web.{allow-pull, allow-push, deny_read, etc}` config options governing access control were never consulted when running these commands. This allowed permissions bypass for impacted commands.
 1. The `batch` wire protocol command did not list its permission requirements nor did it enforce permissions on individual sub-commands.

The implication of these vulnerabilities is that no permissions checking was performed on commands and this could lead to accessing data that `web.*` config options were supposed to prevent access to or modifying data (via wire protocol commands that can mutate data) without authorization. A Mercurial HTTP server in its default configuration is supposed to be read-only. However, a well-crafted `batch` command could invoke commands that perform writes.

The `batch` write permissions bypass has been present since Mercurial 1.9. The flaw of not checking permissions for wire protocol commands that don't declare their needed permissions has been present since Mercurial 1.0.

Assuming you are running a server without any custom commands provided by extensions, your exposure is unauthorized data access (if relying on the `web.*` config options to limit access) and unauthorized data mutation via the `batch` command.

Server operators can detect unauthorized use of the `batch` command by looking for requests to URLs of the form `repo?cmd=batch` with arguments containing `pushkey` or `unbundle`. This may produce false positives. A more comprehensive check would decode the argument string and verify that `pushkey` or `unbundle` are command names (not values). The arguments specified via `x-hgarg-<N>` request headers can span multiple headers. So advanced attackers could hide the vulnerability by splitting a `pushkey` or `unbundle` string across multiple headers. So the only reliable way to detect if this vulnerability is being exploited is to decode these headers like Mercurial does. The format for specifying arguments is documented at https://www.mercurial-scm.org/repo/hg/file/4.5/mercurial/help/internals/wireprotocol.txt#l26. Python code for decoding headers is at https://www.mercurial-scm.org/repo/hg/file/4.5/mercurial/hgweb/protocol.py#l70.

Mercurial 4.5.2 fixes these vulnerabilities by:

 * Performing permissions checking on all wire protocol commands, not just commands that list their permissions.
 * Checking permissions on sub-commands issued to the `batch` command.

Wire protocol commands not declaring wire protocol permissions will be assumed to be read-write commands and a server in its default configuration (which only allows read-only access), will refuse to execute these commands.

For package maintainers needing to backport the fixes, the relevant changesets from 4.5.2 are `2c647da851ed::2ecb0fc535b1`. These can be viewed online at e.g. https://www.mercurial-scm.org/repo/hg/rev/2ecb0fc535b1. The author of these commits has backports to 4.4 and 4.3 on a personal fork at https://hg.mozilla.org/users/gszorc_mozilla.com/hg. The backports for 4.4 are `a4843835c835::7cf827e5f8af` and for 4.3 are `db527ae12671::86f9a022ccb8`. To obtain these changesets, run e.g. `hg pull -r 7cf827e5f8af https://hg.mozilla.org/users/gszorc_mozilla.com/hg`.

=== Backwards Compatibility Changes ===
 * The "batch" wire protocol command now enforces permissions of each invoked sub-command. Wire protocol commands must define their operation type or the "batch" command will assume they can write data and will prevent their execution on HTTP servers unless the HTTP request method is POST, the server is configured to allow pushes, and the (possibly authenticated) HTTP user is authorized to perform a push.

 * Wire protocol commands not defining their operation type in "wireproto.PERMISSIONS" are now assumed to be used for "push" operations and access control to run those commands is now enforced accordingly.

=== Bug Fixes ===
 * fileset: don't abort when running copied() on a revision with a removed file
 * date: fix parsing months
 * setup: only allow Python 3 from a source checkout (Bts:issue5804)
 * annotate: do not poorly split lines at CR (Bts:issue5798)
 * subrepo: don't attempt to share remote sources (Bts:issue5793)
 * subrepo: activate clone pooling to enable sharing with remote URLs
 * changegroup: do not delta lfs revisions
 * revlog: do not use delta for lfs revisions
 * revlog: resolve lfs rawtext to vanilla rawtext before applying delta

== Mercurial 4.5 (2018-02-01) ==
=== New Features ===
==== revert --interactive ====
The revert command now accepts the flag --interactive to allow reverting only some of the changes to the specified files.

==== Accessing hidden changesets ====
Set config option 'experimental.directaccess = True' to access hidden changesets from read only commands.

==== githelp extension ====
The `githelp` extension provides the `hg githelp` command. This command attempts to convert a `git` command to its Mercurial equivalent. The extension can be useful to Git users new to Mercurial.

==== Largefiles changes ====
 * largefiles: add a 'debuglfput' command to put largefile into the store
 * largefiles: add support for 'largefiles://' url scheme
 * largefiles: allow to run 'debugupgraderepo' on repo with largefiles
 * largefiles: convert EOL of hgrc before appending to bytes IO
 * largefiles: explicitly set the source and sink types to 'hg' for lfconvert
 * largefiles: modernize how capabilities are added to the wire protocol

=== hgweb changes ===
hgweb now shows more information about commits: phase (if it's not public), obsolescence status (with a short explanation and links to the successors) and instabilities (e.g. orphan, phase-divergent or content-divergent).

Client-side graph code has been simplified by delegating more work to the backend, so /graph page is now more in sync with /log page, visually and feature-wise. Unfortunately, this code change means that 3rd-party themes for 4.5+ are required to have `graphentry.tmpl` template available (copy it from the base theme if you don't use `%include` and then reference it in map file) and render entries in `graph.tmpl` -- look at one of the core themes to see what it needs to look like. JS functions that create graph vertices and edges are now available in `Graph.prototype`, making it possible to call the original functions from custom theme-specific functions if needed.

Graph now shows different symbols for normal, branch-closing, obsolete and unstable commits, and marks currently checked out commit with a circle around its graph node.

There's also now `json-graph` API endpoint that can be used for rendering commit graph in 3rd-party applications.

==== Other Changes ====
 * When interactive revert is run against a revision other than the working directory parent, the diff shown is the diff to <em>apply</em> to the working directory, rather than the diff to <em>discard</em> from the working copy. This is in line with related user experiences with 'git' and appears to be less confusing with 'ui.interface=curses'.
 * Let 'hg rebase' avoid content-divergence by skipping obsolete changesets (and their descendants) when they are present in the rebase set along with one of their successors but none of their successors is in destination.
 * A new experimental config flag, 'rebase.experimental.inmemory', makes rebase perform an in-memory merge instead of doing it on-disk in the working copy.
 * The `HGPLAINEXCEPT` environment variable can now include `color` to allow automatic output colorization in otherwise automated environments.
 * A new unamend command in uncommit extension which undoes the effect of the amend command by creating a new changeset which was there before amend and moving the changes that were amended to the working directory.
 * A '--abort' flag to merge command to abort the ongoing merge.
 * An experimental flag '--rev' to 'hg branch' which can be used to change branch of changesets.
 * bundle2 read I/O significantly improved
 * bundle2 memory use significantly reduced during read
 * clonebundle: it is now possible to serve the clonebundle using a git-lfs compatible server.
 * templatefilters: add slashpath() to convert path separator to slash (Bts:issue5572)
 * A new experimental config flag, 'inline-color-diff', adds within-line color diff capacity
 * histedit: add support to output nodechanges using formatter to help with editor integrations

=== Backwards Compatibility Changes ===
 * `log --follow-first -rREV`, which is deprecated, now follows the first parent of merge revisions from the specified `REV` just like `log --follow -rREV`.
 * `log --follow -rREV FILE..` now follows file history across copies and renames.
 * transaction: register summary callbacks only at start of transaction
 * hgweb's graph view no longer supports browsers that lack <canvas> support
 * hgweb: only include graph-related data in jsdata variable on /graph pages
 * graphlog: add another graph node type, unstable, using character `*`
 * remove: print message for each file in verbose mode only while using '-A'

=== Bug Fixes ===
 * Bookmark, whose name is longer than 255, can again be exchanged again between 4.4+ client and servers (Bts:issue5165)
 * The convert extension works with bzr < 2.6.0 again (Bts:issue5733)
 * Mercurial will now attempt to use hardlinks on NTFS on Windows (Bts:issue4580)
 * The revset `x^::` is now correctly parsed as `(x^)::` instead of being an error (Bts:issue5764)
 * Setting the diff.noprefix configuration option no longer breaks the `--stat` flag on `hg diff` (Bts:issue5759)
 * `hg outgoing` now honors `:pushurl` paths from hgrc (Bts:issue5365)
 * log: translate column labels at once (Bts:issue5750)
 * patch: improve heuristics to not take the word `diff` as header (Bts:issue1879)
 * templater: look up symbols/resources as if they were separated (Bts:issue5699)
 * http and ssh: support for emitting extra debug logs about requests as they happen

=== API Changes ===
 * `bundlerepo.bundlerepository.bundle` and `bundlerepo.bundlerepository.bundlefile` are now prefixed with an underscore.
 * Rename bundlerepo.bundlerepository.bundlefilespos to _cgfilespos.
 * dirstate no longer provides a 'dirs()' method.  To test for the existence of a directory in the dirstate, use 'dirstate.hasdir(dirname)'.
 * mapping does not contain all template resources. use context.resource() in template functions.
 * `text=False|True` option is dropped from the vfs interface because of Python 3 compatibility issue. Use `util.tonativeeol/fromnativeeol()` to convert EOL manually.
 * `wireproto.streamres.__init__` no longer accepts a `reader` argument. Use the `gen` argument instead.
 * exchange.getbundlechunks() now returns a 2-tuple instead of just an iterator.
 * bundle2 parts are no longer seekable by default
 * memfilectx: the changectx argument is now mandatory in constructor

== Mercurial 4.4.2 (2017-12-01) ==
This is a regularly-scheduled bugfix release.

=== Notable changes ===
==== Stricter command option parsing ====
Mercurial can now optionally parse "early" options (`-R/--repository`, `--cwd`, `--config`, `--debugger`, and `--profile`) more strictly, for more secure integration with tools that invoke 'hg' commands. Setting `HGPLAIN=+strictflags` will parse these options more strictly, which prevents them from being injected as arguments to other flags.

=== Bug fixes ===
 * 'hg amend' now correctly handles deleted and removed files, as well as subrepos. (Bts:issue5732, Bts:issue5677)
 * largefiles now correctly handles dropped standin files when updating largefiles.
 * Fixed an issue with deleting symlinks to directories when ui.origbackuppath is set. (Bts:issue5731)

=== Performance improvements ===
 * Improved performance in path conflict checking introduced in Mercurial 4.4. (Bts:issue5716)

== Mercurial 4.4.1 (2017-11-07) ==
=== Notable changes ===
 * Git and Subversion subrepos have been disabled by default to mitigate a potential security risk if files overlapping with a subrepo managed to be committed to a repository.
 * Subrepos are now more paranoid about symlink traversal.
 * The share extension handles drive letters on Windows better.

It is possible that a specially malformed repository can cause Git subrepositories to run arbitrary code in the form of a .git/hooks/post-update script checked in to the repository in Mercurial 4.4 and earlier. Typical use of Mercurial prevents construction of such repositories, but they can be created programmatically.

== Mercurial 4.4 (2017-11-01) ==
=== Notable changes ===
==== Control whitespace settings for annotation on hgweb ====
/annotate URLs on hgweb now accept query string arguments to influence how whitespace changes impact results.

The arguments "ignorews," "ignorewsamount," "ignorewseol," and "ignoreblanklines" now have the same meaning as their [annotate] config section counterparts. Any provided setting overrides the server default.

HTML checkboxes have been added to the paper and gitweb themes to expose current whitespace settings and to easily modify the current view.

==== Fast, heuristic copy-tracing ====
A new fast heuristic algorithm for copytracing which assumes that the files moves are either:

 1. renames in the same directory
 1. moves in other directories with same names

You can use this algorithm by setting 'experimental.copytrace=heuristics'. This setting performs full copytracing if both source and destination branches contains non-public changesets only.

==== Other changes ====
 * Estimated time is more accurate with non-linear progress

 * "hg status -v" can now show unfinished state. For example, when in an unfinished rebase state, "hg status -v" might show:
 {{{
 # The repository is in an unfinished *rebase* state.
 # No unresolved merge conflicts.
 # To continue:                hg rebase --continue
 # To abort:                   hg rebase --abort
}}}

 * Added '--ignore-space-at-eol' diff option to ignore whitespace differences at line endings.

 * show: use consistent node length in views

 * show: decrease minimum displayed hash length from 5 to 4

 * A new uncommit extension which provides 'hg uncommit' using which one can uncommit part or all of the changeset. This command undoes the effect of a local commit, returning the affected files to their uncommitted state.

 * 'hg clone --uncompressed' uses clone bundles when possible

 * 'hg annotate --skip' now prints a '*' on lines with skipped revisions

 * New 'commands.update.check' feature to adjust constraints on when 'hg update' will allow updates with a dirty working copy.

 * Add an experimental -L/--line-range FILE,FROMLINE:TOLINE option to 'hg log' command to follow the history of files by line range. In combination with -p/--patch option, only diff hunks within specified line range will be displayed. Feedback, especially on UX aspects, is welcome.

 * Print warning when fsmonitor isn't being used on a large repository

=== Backwards Compatibility Changes ===
 * The config option for copytrace 'experimental.disablecopytrace' is now replaced with 'experimental.copytrace' which defaults to 'on'. If you need to turn off copytracing, add '[experimental] copytrace = off' to your config.

 * 'hg clone --stream' should now be used instead of --uncompressed. --uncompressed is marked as deprecated and is an alias for --stream. There is no schedule for elimination of --uncompressed.

 * The 'experimental.updatecheck' name for the new 'commands.update.check' feature is now deprecated, and will be removed after this release.

 * Mercurial subrepositories are now shared instead of cloned when the parent repository is shared.  This prevents dangling subrepository references in the share source.  Previously shared repositories with cloned subrepositories will continue to function unchanged.

 * Push no longer triggers a pushkey hook when updating phases. Use the new 'txnclose-phase' and 'txnclose-phase' hooks instead. (Applies when both server and client use version 4.4 or above).

=== Bug Fixes ===
 * Core rebase algorithm has been rewritten to be more robust (Bts:issue5578, Bts:issue5630)

 * Creating a share of a repository with a Mercurial subrepository will now share the subrepository (Bts:issue5675)

=== Performance Improvements ===
 * improved performance when many aliases are defined

=== API Changes ===
==== remove peer.batch() ====
Replace with peer.iterbatch().

==== Other Changes ====
 * @peer.batchable can no longer emit local values

 * @peer.batchable functions must now yield exactly 2 values

 * Rename attributes on sshpeer to reflect peer API

 * peer.peerrepository has been removed. Use repository.peer abstract base class to represent a peer repository.

 * revset.stringset() now takes 'order' as the last argument.

== Mercurial 4.3.3 (2017-10-01) ==
 * Prevent crashes when clearing progress bar. (Bts:issue5684)
 * rebase: move bookmarks with --keep (Bts:issue5682)

== Mercurial 4.3.2 (2017-09-18) ==
 * restore compatibility with older versions of Python 2.7 by not using a bytearray with struct.unpack_from()
 * restore mingw compatibility for setup.py
 * hgwebdir: read 'web.template' untrusted (plugs potential security issue)
 * repair: preserve phase when not using generaldelta (Bts:issue5678)
 * ssh: fix flakey ssh errors on BSD systems
 * restore error handling behavior around certain I/O errors; the regressed behavior could result in transactions not being properly rolled back if stdio handles encountered errors (Bts:issue5658)
 * templatekw: choose {latesttag} by len(changes), not date (Bts:issue5659)
 * record: fix revert -i for lines without newline (Bts:issue5651)
 * mq: create non-lossy patches, also with custom global diff configuration

== Mercurial 4.3 / 4.3.1 (2017-08-10) ==
(4.3.1 was released immediately after 4.3 to fix a release oversight.)

An [[Release4.3|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

=== Notable changes ===
 * experimental amend extension providing the amend command
 * experimental sparse extension
 * Support for Python 2.6 has been dropped.
 * Bundles created by the strip extension now store phase information. It will be restored when unbundling.
 * The strip extension now removes relevant obsmarkers. If a backup requested (the default), the obsmarkers are stored in the backup bundle and will be restored when unbundling.
 * `hg show work` (from the experimental `show` extension) now displays more info
 * `hg show stack` is a new view for the current, in-progress changeset and others around it
 * Mitigation for two security vulnerabilities

=== CVE-2017-1000115 ===
Mercurial's symlink auditing was incomplete prior to 4.3, and could be abused to write to files outside the repository.

=== CVE-2017-1000116 ===
Mercurial was not sanitizing hostnames passed to ssh, allowing shell injection attacks on clients by specifying a hostname starting with -oProxyCommand. This is also present in Git (CVE-2017-1000117) and Subversion (CVE-2017-9800), so please patch those tools as well if you have them installed.

== Mercurial 4.2.3 (2017-08-10) ==
This was an out-of-cycle backport of security fixes from 4.3 for users stuck on Python 2.6.

== Mercurial 4.2.2 (2017-07-05) ==
This is a regularly-scheduled bugfix release.

 * largefiles: avoid a crash when archiving a subrepo with largefiles disabled
 * rebase: also test abort from pretxnclose error
 * rebase: backed out changes 2519994d25ca and cf8ad0e6c0e4 (Bts:issue5610)
 * rebase: reinforce testing around precommit hook interrupting a rebase

== Mercurial 4.2.1 (2017-6-4) ==
This is a regularly-scheduled bugfix release.

 * `hg graft` now works when grafting across merges that were problematic before ([[https://www.mercurial-scm.org/repo/hg-stable/rev/b4e1e30528c7|b4e1e30528c7]]).
 * A race condition in `hg status` was partially fixed (Bts:issue5584).
 * The message about deprecated SHA-1 hashes in the [hostfingerprints] config section now references the correct syntax for replacing them with SHA-256 hashes (Bts:issue5559).

== Mercurial 4.2 (2017-5-2) ==
An [[Release4.2|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

=== Notable changes ===
 * Pager support has been moved into core and is now enabled by default. This is now controlled with the ui.paginate setting.
  * Note that in 4.2-rc, the ui.paginate option was named pager.enable. The old name has been dropped in the final release. If you had turned pagination off using pager.enable=False, please update your config.
 * Color support has also been moved into core and is now enabled by default (the ui.color setting now defaults to 'auto').
 * The new experimental 'show' extension provides a way to view various information about your repository in an ergonomic way. It is deliberately designed for human consumption and not for scripting, so it doesn't carry the same [[CompatibilityRules|backward compatibility guarantees]] as other commands. See 'hg help -e show' for more information.
 * Mercurial now requires `setuptools` on Windows.

=== commands ===
 * Pager support has been added to the 'log', 'diff', 'branches', 'files', 'status', 'summary', and 'tags' commands, as well as the '--patch', '--list', and '--stat' options of hg shelve.
 * bisect: set a blockedtag when running the check command
 * bookmarks: check HG_PENDING strictly
 * branches: populate all template keywords in formatter
 * commandserver: handle backlog before exiting
 * commandserver: prevent unlinking socket twice
 * commit: optionally strip quotes from commit template (BC)
 * diff: add --binary option for git mode diffs
 * help: add pointer how to narrow list of resolved/unresolved files (Bts:issue5469)
 * pager: advertise the config option in the default hgrc
 * pager: avoid shell=True on subprocess.Popen for better errors (Bts:issue5491)
 * pager: don't terminate with extreme prejudice on SIGPIPE (BC)
 * pager: exit cleanly on SIGPIPE (BC)
 * pager: improve support for various flavors of 'more' on Windows
 * pager: use less as a fallback on Unix
 * pull: abort pull --update if config requires destination (Bts:issue5528)
 * serve: add support for Mercurial subrepositories
 * status: handle more node indicators in buildstatus
 * status: support commands.status.relative config
 * update: accept --merge to allow merging across topo branches (Bts:issue5125)
 * verify: fix length check

=== core ===
 * bundle2: ignore errors seeking a bundle after an exception (Bts:issue4784)
 * checkheads: upgrade the obsolescence postprocessing logic (Bts:issue4354)
 * color: insert color code after every "\e[0m" (Bts:issue5413)
 * color: sync text attributes and buffered text output on Windows (Bts:issue5508)
 * config: use "churn" as an example extension
 * config: drop pager from the recommended extension
 * context: optimize linkrev adjustment in blockancestors() (Bts:issue5538)
 * crecord: avoid setting non-existing  SIGTSTP signal on windows (Bts:issue5512)
 * debian: configure editor and pager to sensible-editor and sensible-pager by default
 * dispatch: ignore further SIGPIPE while handling KeyboardInterrupt
 * dispatch: protect against malicious 'hg serve --stdio' invocations (SEC)
 * dispatch: start profiling earlier
 * filemerge: optionally strip quotes from merge marker template (BC)
 * formatter: add support for changeset templating
 * formatter: support json formatting of long type
 * graphlog: draw multiple edges towards null node (Bts:issue5440)
 * graphlog: optionally strip quotes from graphnode template (BC)
 * localrepo: deprecate 'repo.join' in favor of 'repo.vfs.join'
 * localrepo: deprecate 'repo.opener' (API)
 * localrepo: deprecate 'wfile'
 * localrepo: deprecated 'repo.wopener' (API)
 * match: adding support for matching files inside a directory
 * packaging: add make target for linux wheels
 * patch: make diff in git mode respect --text option (Bts:issue5510)
 * plain: ignore [commands] config
 * profiling: add statprof support for Chrome trace viewer rendering
 * progress: retry ferr.flush() and .write() on EINTR (Bts:issue5532)
 * py3: stop exporting urlparse from pycompat and util (API)
 * rcutil: let environ override system configs (BC)
 * rcutil: let rccomponents return different types of configs (API)
 * rcutil: move scmutil.*rcpath to rcutil (API)
 * rcutil: rename rcpath to rccomponents (API)
 * rcutil: split osrcpath to return default.d paths (API)
 * record: update help message to use operation instead of "record" (Bts:issue5432)
 * revlog: avoid applying delta chain on cache hit
 * revset: split language services to revsetlang module (API)
 * revset: stop supporting plain list as input set (API)
 * revset: stop supporting predicate that returns plain list (API)
 * setup: use setuptools on Windows (Bts:issue5400)
 * smartset: move set classes and related functions from revset module (API)
 * sshpeer: try harder to snag stderr when stdout closes unexpectedly
 * templatefilter: add support for 'long' to json()
 * templatekw: have showlist() take mapping dict with no **kwargs expansion (API)
 * templatekw: make join() escape values of extras (BC) (Bts:issue5504)
 * templater: make pad() strip color codes before computing width (Bts:issue5416)
 * test-profile: allow negative time in JSON output (issue5542)
 * track-tags: write all tag changes to a file
 * util: always force line buffered stdout when stdout is a tty (BC)
 * vfs: extract 'vfs' class and related code to a new 'vfs' module (API)

=== extensions ===
 * histedit: log the time taken to read in the commands list
 * histedit: make check for unresolved conflicts explicit (Bts:issue5545)
 * histedit: modify rollup to discard date from the rollup commit (Bts:issue4820)
 * histedit: use safecleanupnode in _aborthistedit (Bts:issue5500)
 * largefiles: add copytostore() fstandin argument to replace readstandin() (API)
 * largefiles: add lfile argument to updatestandin() for efficiency (API)
 * largefiles: make copytostore() accept only changectx as the 2nd argument (API)
 * largefiles: omit updating newly added standin at linear merging
 * largefiles: remove unused keyword argument of copytostore() (API)
 * largefiles: replace hashrepofile by hashfile (API)
 * largefiles: set the extension as enabled locally after a share requiring it
 * patchbomb: add config knob to generate flags by template (Bts:issue5354)
 * patchbomb: drop internal option for pbranch extension (API)
 * patchbomb: use modern pager to display -n/--test result (BC)
 * rebase: abort hg pull --rebase if rebase.requiredest is set (Bts:issue5514)
 * rebase: abort if *any* commit in rebase set is public
 * rebase: add flag to require destination
 * rebase: allow aborting if last-message.txt is missing
 * rebase: allow destination-free continue and abort (Bts:issue5513)
 * rebase: allow rebasing children of wd to wd if a new branch has been set (BC)
 * rebase: unhide original working directory node as well (Bts:issue5219)
 * shelve: add -n/--name option to unshelve (Bts:issue5475)
 * shelve: add logic to preserve active bookmarks
 * show: new extension for displaying various repository data

=== hgweb ===
 * hgweb: add a "patch" query parameter to filelog command
 * hgweb: do not show "descending" link in followlines UI for filelog heads
 * hgweb: handle a "descend" query parameter in filelog command
 * hgweb: handle a "linerange" request parameter in filelog command
 * hgwebdir: add support for explicit index files

=== Behavior changes ===
 * commit: optionally strip quotes from commit template (BC)
 * filemerge: optionally strip quotes from merge marker template (BC)
 * graphlog: optionally strip quotes from graphnode template (BC)
 * pager: don't terminate with extreme prejudice on SIGPIPE (BC)
 * pager: exit cleanly on SIGPIPE (BC)
 * patchbomb: use modern pager to display -n/--test result (BC)
 * rcutil: let environ override system configs (BC)
 * rebase: allow rebasing children of wd to wd if a new branch has been set (BC)
 * templatekw: make join() escape values of extras (BC) (Bts:issue5504)
 * util: always force line buffered stdout when stdout is a tty (BC)

=== Internal API changes ===
 * largefiles: add copytostore() fstandin argument to replace readstandin() (API)
 * largefiles: add lfile argument to updatestandin() for efficiency (API)
 * largefiles: make copytostore() accept only changectx as the 2nd argument (API)
 * largefiles: remove unused keyword argument of copytostore() (API)
 * largefiles: replace hashrepofile by hashfile (API)
 * localrepo: deprecate 'repo.opener' (API)
 * localrepo: deprecated 'repo.wopener' (API)
 * patchbomb: drop internal option for pbranch extension (API)
 * py3: stop exporting urlparse from pycompat and util (API)
 * rcutil: let rccomponents return different types of configs (API)
 * rcutil: move scmutil.*rcpath to rcutil (API)
 * rcutil: rename rcpath to rccomponents (API)
 * rcutil: split osrcpath to return default.d paths (API)
 * revset: split language services to revsetlang module (API)
 * revset: stop supporting plain list as input set (API)
 * revset: stop supporting predicate that returns plain list (API)
 * smartset: move set classes and related functions from revset module (API)
 * templatekw: have showlist() take mapping dict with no **kwargs expansion (API)
 * vfs: extract 'vfs' class and related code to a new 'vfs' module (API)

== Mercurial 4.1.3 (2017-4-18) ==
This is an out of cycle release to address a security issue:

 * `hg serve --stdio` could be tricked into granting authorized users access to the Python debugger. Thanks to Jonathan Claudius of Mozilla for reporting this issue. This issue is only a security issue for repositories served using --stdio, which includes ssh but *not* http. This is CVE-2017-9462.

== Mercurial 4.1.2 (2017-4-3) ==
This is a regularly-scheduled bugfix release.

 * Mercurial should work inside IIS on Windows again. (Bts:issue5493)
 * zstd support now refuses to work on old bundle formats. (Bts:issue5506)
 * Merges involving subrepositories no longer crash in some cases. (Bts:issue5505)
 * Checking for new heads during push is [[https://www.mercurial-scm.org/repo/hg/rev/ed5b25874d998ababb181a939dd37a16ea644435|no longer]] accidentally quadratic

== Mercurial 4.1.1 (2017-3-2) ==
This is a regularly-scheduled bugfix release.

 * Several incorrect mailing list addresses have been corrected.
 * Various error cases have been corrected during push and pull.
 * Minor issues that happened when Mercurial spawned worker processes have been fixed.

== Mercurial 4.1 (2017-2-1) ==
An [[Release4.1|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

=== commands ===
 * commands: config option to control bundle compression level
 * crecord: add an experimental option for space key to move cursor down
 * crecord: rewrite status line text (BC)
 * diff: add experimental support for more git-diff extended diff features
 * graft: support grafting changes to new file in renamed directory (Bts:issue5436)
 * help: show help for disabled extensions (Bts:issue5228)
 * help: update help for 'hg update' which was misleading (Bts:issue5427)
 * merge: fix crash on criss cross merge with dir move and delete (Bts:issue5020)
 * summary: add evolution "troubles" information to summary output
 * summary: use the same labels as log command in "parent: " line
 * templates: display evolution "troubles" in command line style

=== core ===
 * changelog: keep track of file end in appender (Bts:issue5444)
 * dispatch: stop supporting non-use of @command (API)
 * hook: do not redirect stdout/err/in to ui while running in-process hooks (BC)
 * httppeer: advertise and support application/mercurial-0.2
 * localrepo: experimental support for non-zlib revlog compression
 * manifest: add bundlemanifestlog support
 * manifest: add unionmanifestlog support
 * manifest: make revlog verification optional
 * patch: add experimental config knob for displaying the index header
 * patch: add similarity config knob in experimental section
 * patch: add label for coloring the index extended header
 * patch: add label for coloring the similarity extended header
 * profiling: make statprof the default profiler (BC)
 * profiling: use vendored statprof and upstream enhancements (BC)
 * revlog: REVIDX_EXTSTORED flag
 * revlog: add clone method
 * revlog: ensure that flags do not overflow 2 bytes
 * revlog: flag processor
 * revlog: inline start() and end() for perf reasons
 * revlog: make compressed size comparisons consistent
 * revlog: merge hash checking subfunctions
 * revlog: move decompress() from module to revlog class (API)
 * revlog: optimize _chunkraw when startrev==endrev
 * revlog: pass revlog flags to addrevision
 * revlog: reorder index accessors to match data structure order
 * revlog: use compression engine API for compression
 * revlog: use compression engine APIs for decompression
 * revset: add regular expression support to 'desc'
 * revset: make children() not look at p2 if null (Bts:issue5439)
 * run-tests: forward Python USER_BASE from site (Bts:issue5425)
 * server: move cmdutil.service() to new module (API)
 * templatekw: force noprefix=False to insure diffstat consistency (Bts:issue4755)
 * ui: check EOF of getpass() response read from command-server channel
 * ui: do not translate empty configsource() to 'none' (API)
 * ui: factor out ui.load() to create a ui without loading configs (API)
 * util: compression APIs to support revlog compression and decompression
 * util: declare wire protocol support of compression engines
 * wireproto: advertise supported media types and compression formats
 * wireproto: only advertise HTTP-specific capabilities to HTTP peers (BC)
 * wireproto: perform chunking and compression at protocol layer (API)

=== extensions ===
 * convert: add config option to control storing original revision
 * convert: add config option to copy extra keys from Git commits
 * convert: config option for git rename limit
 * convert: config option to control Git committer actions
 * rebase: calculate ancestors for --base separately (Bts:issue5420)
 * rebase: check for conflicts before continuing
 * rebase: fail-fast the pull if working dir is not clean (BC)
 * shelve: allow multiple shelves with --patch and --stat
 * shelve: choose a legal shelve name when no name is passed (Bts:issue5112)
 * shelve: make --keep option survive user intervention (Bts:issue5431)
 * shelve: make unshelve not crash when there are missing files (Bts:issue4176)

=== hgweb ===
 * hgweb: link to raw-file on annotation page (BC)
 * hgweb: make log streams compatible with command server
 * hgweb: restore ascending iteration on revs in filelog web command
 * hgweb: support Content Security Policy

=== chg ===
 * chg: send type information via S channel (BC)
 * chg: support long socket path
 * chgserver: make S channel support pager request
 * chgserver: override runcommand

=== Behavior Changes ===
 * chg: send type information via S channel (BC)
 * crecord: rewrite status line text (BC)
 * hgweb: link to raw-file on annotation page (BC)
 * hook: do not redirect stdout/err/in to ui while running in-process hooks (BC)
 * profiling: make statprof the default profiler (BC)
 * profiling: use vendored statprof and upstream enhancements (BC)
 * rebase: fail-fast the pull if working dir is not clean (BC)
 * wireproto: only advertise HTTP-specific capabilities to HTTP peers (BC)

=== Internal API Changes ===
 * bookmarks: make bookmarks.comparebookmarks accept binary nodes (API)
 * bookmarks: rename 'compare()' to 'comparebookmarks()' (API)
 * revlog: move decompress() from module to revlog class (API)
 * server: move cmdutil.service() to new module (API)
 * ui: do not translate empty configsource() to 'none' (API)
 * ui: factor out ui.load() to create a ui without loading configs (API)
 * util: remove compressors dict (API)
 * util: remove decompressors dict (API)
 * wireproto: perform chunking and compression at protocol layer (API)
 * dispatch: stop supporting non-use of @command (API)

== Mercurial 4.0.2 (2017-01-04) ==
This is a regularly-scheduled bugfix release.

 * demandimport: do not raise ImportError for unknown item in fromlist
 * posix: make poll() restart on interruption by signal (Bts:issue5452)
 * hgweb: add missing slash to file log url in rss style

== Mercurial 4.0.1 (2016-12-1) ==
This is a regularly-scheduled bugfix release.

 * hgweb: cache fctx.parents() in annotate command (Bts:issue5414)
 * vfs, scmutil: ignore EPERM at os.utime, which avoids ambiguity (Bts:issue5418)

== Mercurial 4.0 (2016-11-1) ==
An [[Release4.0|overview of new features]] available. This is a regularly-scheduled quarterly feature release. Unlike other 4.0 software releases, this is simply 3.9 + .1, so it should be the usual pain-free upgrade.

=== commands ===
 * annotate: calculate line count correctly
 * branchmap: acquires lock before writting the rev branch cache
 * clone: set default path correctly when doing a clone+share (Bts:issue5378)
 * copy: distinguish "file exists" cases and add a hint (BC)
 * commit: return 1 for interactive commit with no changes (Bts:issue5397)
 * config: add template support
 * debugobsolete: add formatter support (Bts:issue5134)
 * files: change documentation to match its behaviour (Bts:issue5276)
 * grep: add formatter support
 * help: show content for explicitly disabled extension (Bts:issue5228)
 * import: abort instead of crashing when copy source does not exist (Bts:issue5375)
 * import: report directory-relative paths in error messages (Bts:issue5224)
 * log: copy the way of ancestor traversal to --follow matcher (Bts:issue5376)
 * log: preserve topo sort in graph even if additional filter options specified
 * merge: add conflict labels to merge command
 * merge: avoid superfluous filemerges when grafting through renames (Bts:issue5407)
 * strip: report both bundle files in case of exception (Bts:issue5368)
 * tag: clarify warning about making a tag on a branch head
 * version: add formatter support
 * flags: allow specifying --no-boolean-flag on the command line (BC)

=== core ===
 * changelog: disable delta chains
 * copies: make _checkcopies handle copy sequences spanning the TCA (Bts:issue4028)
 * formatter: add function to convert list to appropriate format (Bts:issue5217)
 * lock: show more detail for new-style locks in lock waiting message (Bts:issue4752)
 * revset: do not rewrite ':y' to '0:y' (Bts:issue5385)
 * revset: fix order of nested '_(|int|hex)list' expression (BC)
 * revset: fix order of nested 'or' expression (BC)
 * revset: fix order of nested 'range' expression (BC)
 * revset: make reverse() and sort() no-ops when ordering requirement allows (BC)
 * revset: support "follow(renamed.py, e22f4f3f06c3)" (Bts:issue5334)
 * templater: provide a termwidth keyword (Bts:issue5395)
 * templater: add inheritance support to style maps
 * templater: add relpath() to convert repo path to relative path (Bts:issue5394)
 * templater: make pad() evaluate boolean argument (BC)
 * wireproto: unescape argument names in batch command (BC)

=== extensions ===
 * journal: properly check for held lock (Bts:issue5349)
 * journal: use fm.formatdate() to pass date tuple in appropriate type (BC)
 * journal: use fm.formatlist() to pass hashes in appropriate type (BC)
 * journal: use fm.hexfunc() to get full hash in JSON/template output (BC)
 * largefiles: fix 'deleted' files sometimes persistently appearing with R status
 * largefiles: handle that a found standin file doesn't exist when removing it
 * largefiles: more safe handling of interruptions while updating modifications
 * largefiles: when setting/clearing x bit on largefiles, don't change other bits
 * mq: release lock after transaction in qrefresh
 * mq: take wlock when 'qqueue' is doing write operations
 * rebase: properly calculate total commits to rebase (Bts:issue5347)
 * rebase: rebase changesets in topo order (Bts:issue5370) (BC)

=== hgweb ===
 * hgweb: avoid line wrap between revision and annotate-info (Bts:issue5398)
 * hgweb: config option to control zlib compression level

Diff for "WhatsNew/Archive"

What's New Archive

Mercurial 4.6.2 (2018-07-03)

Mercurial 4.6.1 (2018-06-06)

Security Fixes

Bug Fixes

Mercurial 4.6 (2018-05-06)

New Features

pullbundles

push

notify extension

hgweb

templates

Other notable features

Backwards Compatibility Changes

Performance Improvements

Bug Fixes

New experimental features

narrow extension

remotenames extension

infinitepush extension

fix extension

lfs extension

API Changes

Mercurial 4.5.3 (2018-04-04)

Bug Fixes

Mercurial 4.5.1 / 4.5.2 (2018-03-06)

Security Fixes

Backwards Compatibility Changes

Bug Fixes

Mercurial 4.5 (2018-02-01)

New Features

revert --interactive

Accessing hidden changesets

githelp extension

Largefiles changes

hgweb changes

Other Changes

Backwards Compatibility Changes

Bug Fixes

API Changes

Mercurial 4.4.2 (2017-12-01)

Notable changes

Stricter command option parsing

Bug fixes

Performance improvements

Mercurial 4.4.1 (2017-11-07)

Notable changes

Mercurial 4.4 (2017-11-01)

Notable changes

Control whitespace settings for annotation on hgweb

Fast, heuristic copy-tracing

Other changes

Backwards Compatibility Changes

Bug Fixes

Performance Improvements

API Changes

remove peer.batch()

Other Changes

Mercurial 4.3.3 (2017-10-01)

Mercurial 4.3.2 (2017-09-18)

Mercurial 4.3 / 4.3.1 (2017-08-10)

Notable changes

CVE-2017-1000115

CVE-2017-1000116

Mercurial 4.2.3 (2017-08-10)

Mercurial 4.2.2 (2017-07-05)

Mercurial 4.2.1 (2017-6-4)

Mercurial 4.2 (2017-5-2)

Notable changes

commands

core

extensions

hgweb

Behavior changes

Internal API changes

Mercurial 4.1.3 (2017-4-18)

Mercurial 4.1.2 (2017-4-3)

Mercurial 4.1.1 (2017-3-2)

Mercurial 4.1 (2017-2-1)