Release Notes

Features and bugfixes in our latest releases. Please see the Download page for links to source and binaries.

Note that Mercurial follows a time-based release plan with major releases every three months and minor (bugfix) releases on the first of every month (see TimeBasedReleasePlan).

{i} Be sure to read the upgrade notes when upgrading.

(See the archive for older versions)

1. Mercurial 5.8 (2021-05-03)

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

2. Mercurial 5.7.1 (2021-03-08)

Regularly scheduled bug fix release.

2.1. commands

2.2. core

2.3. extensions

2.4. unsorted

3. Mercurial 5.7 (2021-01-29)

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

4. Mercurial 5.6.1 (2020-12-03)

Regularly scheduled bug fix release.

4.1. extensions

4.2. unsorted

5. Mercurial 5.6 (2020-11-02)

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

6. Mercurial 5.5.2 (2020-10-02)

Regularly scheduled bug fix release.

6.1. commands

6.2. unsorted

7. Mercurial 5.5.1 (2020-09-01)

Regularly scheduled bug fix release.

7.1. bug fixes

8. Mercurial 5.5 (2020-08-03)

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

9. Mercurial 5.4.2 (2020-07-01)

Regularly scheduled bug fix release.

9.1. extensions

9.2. unsorted

10. Mercurial 5.4.1 (2020-06-15)

Regularly scheduled bug fix release.

10.1. commands

10.2. core

10.3. unsorted

11. Mercurial 5.4 (2020-05-01)

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

12. Mercurial 5.3.2 (2020-04-02)

Regularly scheduled bug fix release.

12.1. unsorted

13. Mercurial 5.3.1 (2020-03-04)

Regularly scheduled bug fix release.

13.1. commands

13.2. extensions

13.3. unsorted

14. Mercurial 5.3 (2020-02-03)

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

15. Mercurial 5.2 (2019-11-05)

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

15.1. Backwards Compatibility Changes

* The infinitepush extension is believed to be unused, and will be deleted at

* 'hg grep' now searches working copy file contents by default. We recognize

15.2. API Changes

* 'mercurial.hg.update*' and 'mercurial.merge.update' now expect a value from

* 'mercurial.hg.updatetotally' is now more thorough about checking its

* 'mercurial.bookmarks.bmstore' no longer has a convenience method for looking

15.3. commands

15.4. core

15.5. extensions

15.6. unsorted

15.7. Behavior Changes

15.8. Internal API Changes

16. Mercurial 5.1.2 (2019-10-02)

Regularly scheduled bug fix release.

16.1. extensions

16.2. tests

17. Mercurial 5.1.1 (2019-09-05)

Regularly scheduled bug fix release.

17.1. commands

17.2. core

17.3. tests

18. Mercurial 5.1 (2019-08-01)

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

18.1. commands

18.2. core

18.3. extensions

18.4. unsorted

18.5. Behavior Changes

18.6. Internal API Changes

19. Mercurial 5.0.2

A regularly scheduled bugfix release.

19.1. commands

19.2. unsorted

20. Mercurial 5.0.1

A regularly scheduled bugfix release.

20.1. commands

20.2. unsorted

21. Mercurial 5.0 (2019-05-01)

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

22. Mercurial 4.9.1 (2019-03-19)

A regularly scheduled bugfix release, late due to vacations and similar disruptions at the regular time.

22.1. commands

22.2. extensions

22.3. unsorted

23. Mercurial 4.9 (2019-02-01)

An overview of new features available. This is a regularly-scheduled quarterly feature release that also contains security fixes.

23.1. security

It was possible to use symlinks and subrepositories to defeat Mercurial's path-checking logic and write files outside a repository. This has been fixed. Users on older versions can either disable subrepositories with [subrepos] allowed=false in their configuration or by ensuring any cloned repositories don't contain malicious symlinks.

23.2. commands

23.3. core

23.4. extensions

23.5. unsorted

23.6. Behavior Changes

23.7. Internal API Changes

24. Mercurial 4.8.2 (2019-01-07)

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

24.1. commands

24.2. core

24.3. extensions

24.4. unsorted

25. Mercurial 4.8.1 (2018-12-04)

A regularly scheduled bugfix release. Some security fixes are included, but all are expected to be low-risk.

25.1. commands

25.2. core

25.3. extensions

25.4. unsorted

26. Mercurial 4.8 (2018-11-02)

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

26.1. commands

26.2. core

26.3. extensions

26.4. hgweb

26.5. chg

26.6. unsorted

26.7. Behavior Changes

26.8. Internal API Changes

27. Mercurial 4.7.2 (2018-10-01)

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

27.1. security

Fix a potential out-of-bounds read in manifest parsing C code.

27.2. core

27.3. unsorted

28. Mercurial 4.7.1 (2018-09-04)

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

28.1. commands

28.2. core

28.3. hgweb

28.4. performance

29. Mercurial 4.7 (2018-08-01)

This is a regularly-scheduled quarterly feature release and has its own release notes page which can be found here Full release notes.

WhatsNew (last edited 2021-05-06 14:58:19 by Herman Tafintsev)