Availability of Mercurial 5.5.2 Windows installers using Python 3

Gregory Szorc gregory.szorc at gmail.com
Mon Oct 5 01:54:57 EDT 2020

The Mercurial Project has been generating Windows installers for using
Python 3 since the 5.4 release. However, we haven't officially advertised
these installers on www.mercurial-scm.org/ because there have been major
issues with them (notably TLS/SSL not working reliably).

I'm very pleased to report that I've just published what I believe to be
working Python 3 Windows installers for Mercurial 5.5.2! These installers
are now being advertised on www.mercurial-scm.org/:


These installers are also the first Mercurial installers to use Python
3.8[.6]: previous Python 3 Windows installers were using Python 3.7.

These installers were made possible through various new features and bug
fixes in PyOxidizer, my personal project to build a modern tool to help
package and distribution Python applications.
https://phab.mercurial-scm.org/D9148 contains more details.

Please let me know by replying and/or filing bugs on
https://bz.mercurial-scm.org/ if you run into any issues with these
installers, as a stable/pleasant Mercurial on Python 3 on Windows is a
blocker to us dropping Python 2.7 support and modernizing Mercurial's
technical underpinnings. The 5.6 release is planned for around November 1
and any reported issues that may impact Python 2.7 removal are likely to
get attention.

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