Release Notes

Features and bugfixes in our latest releases.

Be sure to read the upgrade notes when upgrading.

(See archive for older versions.)

1. 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)

2. Mercurial 1.8 (2011-03-01)

2.1. 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

2.2. Subrepos

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

2.3. Windows

• Numerous robustness improvements for quirks in Windows file handling

• Now uses the native ctypes module rather than PyWin32

2.4. Extensions

• eol: filter aliases for compatibility with win32text

• mq: --exact option for qpush

• mq: various robustness improvements
• progress: remaining time estimates

3. 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

4. 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

5. 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)

6. 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

7. 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)

8. Mercurial 1.7 (2010-11-01)

8.1. 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)

8.2. 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)

8.3. 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)

8.4. 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

8.5. 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)

8.6. 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

8.7. contrib

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

8.8. Windows

• 64-bit Inno Setup installer

• handle spaces in path to Python (issue2074)

9. 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

10. 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)

11. 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

12. 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

13. Mercurial 1.6 (2010-07-01)

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

13.1. 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

13.2. 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

13.3. Help

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

13.4. 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

14. See also

• Upgrade notes describe possible compatibility issues

• Advice on upgrading Mercurial

• Archive of older release notes

• Our time-based release plan

• API Changes for developers of third-party extensions

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