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#pragma section-numbers 2
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Be sure to read UpgradeNotes and, if relevant, [[API_Changes|API Changes]].

<<TableOfContents>>

(See [[WhatsNew/Archive|archive]] for older versions. New versions will be released according to the [[TimeBasedReleasePlan|time-based release plan]].)

== 1.4 - 2009-11-16 ==		 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 [[UpgradeNotes|upgrade notes]] when [[UpgradingMercurial|upgrading]].

<<TableOfContents(2)>>

(See the [[WhatsNew/Archive|archive]] for older versions)

== Mercurial 6.8 (2024-07-08) to 6.8.1 (2024-08-01) ==
Regularly scheduled major release. An [[Release6.8|overview of new features]] is available.

== Mercurial 6.7 (2024-03-15) to 6.7.4 (2024-06-12) ==
/!\ 6.7.1, 6.7.2 and 6.7.3 are affected with a data loss critcal bug.
 
Regularly scheduled major release. An [[Release6.7|overview of new features]] is available.

== Mercurial 6.6 (2023-11-21) to 6.6.3 (2024-02-12) ==
Regularly scheduled major release. An [[Release6.6|overview of new features]] is available.

== Mercurial 6.5 (2023-07-06) to 6.5.3 (2023-10-06) ==
Regularly scheduled major release. An [[Release6.5|overview of new features]] is available.

== Mercurial 6.4 (2023-03-24) to 6.4.5 (2023-06-22) ==
Regularly scheduled (but very late) major release. An [[Release6.4|overview of new features]] is available.

== Mercurial 6.3 (2022-11-14) to 6.3.3 (2023-03-02) ==
Regularly scheduled major release (delayed for a number of factors). An [[Release6.3|overview of new features]] available.

6.3.1 is an extra release following some upstream Python 3.11 breakage of how regex flags work.

== Mercurial 6.2 (2022-07-11) to 6.2.3 (2022-10-04) ==
Regularly scheduled major release. An [[Release6.2|overview of new features]] available. This is the first Python 3 only version.

== Mercurial 6.1 (2022-03-01) to 6.1.4 (2022-06-16) ==
Regularly scheduled major release. An [[Release6.1|overview of new features]] available. This is the last version to support Python 2.

== Mercurial 6.0 (2021-11-23) to 6.0.3 (2022-02-18) ==
Regularly scheduled feature release. An [[Release6.0|overview of new features]] available. This is a regularly-scheduled quarterly feature release. It was delayed from the usual calendar due to the ongoing effort to make Windows support more robust, especially on Python 3.

== Mercurial 5.9 to 5.9.3 (2021-08-20) ==
Regularly scheduled feature release. An [[Release5.9|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

== Mercurial 5.8 (2021-05-03) ==
Regularly scheduled feature release. An [[Release5.8|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

== Mercurial 5.7.1 (2021-03-08) ==
Regularly scheduled bug fix release.
=== commands ===
 * log: fix handling of root (or empty) path provided by matcher (Bts:issue6478)
 * patch: fix a formatting issue
 * patch: make diff --git to differentiate b/w file is empty or doesn't exists
Line 11: Line 59:

 * 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		  * hooks: introduce a ':run-with-plain' option for hooks

=== extensions ===
 * largefiles: properly pass kwargs into url.open

=== unsorted ===
 * procutil: extend gui test to detect wayland session (Bts:issue6479)
 * rust-status: honor matcher when using the dirstate-only fast-path (Bts:issue6483)
 * tests: add a test to demonstrate a bug in 'hg diff --git' (Bts:issue6486)

== Mercurial 5.7 (2021-01-29) ==
Regularly scheduled feature release. An [[Release5.7|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

== Mercurial 5.6.1 (2020-12-03) ==

Regularly scheduled bug fix release.

=== extensions ===
 * rebase: clear merge state when aborting in-memory merge on dirty working copy

=== unsorted ===
 * crecord: render chunkpad on Windows (Bts:issue6427)
 * diff: do not concatenate immutable bytes while building a/b bodies (Bts:issue6445)

== Mercurial 5.6 (2020-11-02) ==

Regularly scheduled feature release. An [[Release5.6|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

== Mercurial 5.5.2 (2020-10-02) ==

Regularly scheduled bug fix release.

=== commands ===
 * log: fix crash and bad filematcher lookup by -fr'wdir()' PATH

=== unsorted ===
 * hgdemandimport: bypass demandimport for _ast module (Bts:issue6407)
 * hgdemandimport: exclude more sqlalchemy modules
 * strip: with --keep, consider all revs "removed" from the wcp (Bts:issue6270)


== Mercurial 5.5.1 (2020-09-01) ==

Regularly scheduled bug fix release.

=== bug fixes ===
 * keepalive: Do not append _rbuf if _raw_readinto exists (Bts:issue6356)

== Mercurial 5.5 (2020-08-03) ==

Regularly scheduled feature release. An [[Release5.5|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

== Mercurial 5.4.2 (2020-07-01) ==

Regularly scheduled bug fix release.

=== extensions ===
 * rebase: avoid clobbering wdir() with --dry-run or --confirm (Bts:issue6291)

=== unsorted ===
 * curses: do not initialize LC_ALL to user settings (Bts:issue6358)


== Mercurial 5.4.1 (2020-06-15) ==

Regularly scheduled bug fix release.

=== commands ===
 * graft-state: save --base in graft's state, fixing bug with graft --continue
 * graft: fix --base value to be saved in state file

=== core ===
 * dirstate: make sure the dirstate is loaded before the changelog (Bts:issue6303)

=== unsorted ===
 * bash_completion: do not use aliased hg if it sources a script (Bts:issue6308)
 * demandimport: fix compatibility with meta path finders w/o find_spec() method
 * flags: read flag from dirstate/disk for workingcopyctx (Bts:issue5743)
 * fsmonitor: coerce 'clock' variable to byte-string (Bts:issue6321)
 * url: fix a bytes vs str crash in processing proxy headers (Bts:issue6249)


== Mercurial 5.4 (2020-05-01) ==

Regularly scheduled feature release. An [[Release5.4|overview of new features]] available. This is a regularly-scheduled quarterly feature release.



== Mercurial 5.3.2 (2020-04-02) ==

Regularly scheduled bug fix release.

=== unsorted ===
 * discovery: avoid wrong detection of multiple branch heads (Bts:issue6256)
 * gzip: use the stdlib version with python 3 (Bts:issue6284)

== Mercurial 5.3.1 (2020-03-04) ==

Regularly scheduled bug fix release.

=== commands ===
 * branch: make --force work even when specifying revs
 * import: don't ignore '--secret' when '--bypass' is specified

=== extensions ===
 * shelve: fix ordering of merge labels

=== unsorted ===
 * phabricator: fix a phabsend crash when processing a renamed binary
 * remotefilelog-test: glob some flaky output line (Bts:issue6083)
 * remotefilelog: add 'changelog' arg to shallowcg1packer.generate (Bts:issue6269)

== Mercurial 5.3 (2020-02-03) ==

Regularly scheduled feature release. An [[Release5.3|overview of new features]] available. This is a regularly-scheduled quarterly feature release.


== Mercurial 5.2 (2019-11-05) ==

Regularly scheduled feature release. An [[Release5.2|overview of new features]] available. This is a regularly-scheduled quarterly feature release.


=== Backwards Compatibility Changes ===

* The infinitepush extension is believed to be unused, and will be deleted at
  the end of 2020 unless users contact mercurial-devel@mercurial-scm.org.

* 'hg grep' now searches working copy file contents by default. We recognize
  this is a significant change from past behavior, but surveys of large bodies
  of users indicated nobody used (and almost nobody understood) the previous
  no-flags behavior of 'hg grep'. The new behavior aligns with the behavior
  most users expected (including hg's maintainers), which also happens to be
  the behavior of 'git grep'. Given that the old behavior was confusing to the
  point of being unusable, we were comfortable changing this behavior.

=== API Changes ===

* 'mercurial.hg.update*' and 'mercurial.merge.update' now expect a value from
  a set of NAMED_CONSTANTS ('merge.UPDATECHECK_*' constants) rather than a
  collection of magic strings. As of now, the values are the same, but code
  should be prepared for these values to change in the future.

* 'mercurial.hg.updatetotally' is now more thorough about checking its
  'updatecheck' keyword argument. Previously invalid values would have used
  the configured default updatecheck method, but now will raise ValueError.

* 'mercurial.bookmarks.bmstore' no longer has a convenience method for looking
  up changectx instances from a bookmark name. Use
  'repo[repo.bookmarks[name]]' intead of 'repo.bookmarks.changectx(name)'.


=== commands ===
 * amend: add option to update to the current user
 * amend: enable support for closing the branch
 * amend: enable support for using the secret phase
 * bookmarks: actual fix for race condition deleting bookmark
 * bookmarks: remove changectx() method from bmstore (API)
 * branchmap: explicitly warm+write all subsets of the branchmap caches
 * import: add debug messages when parsing data from patch header
 * import: read X-Mercurial-Node email header to determine nodeid
 * log: populate keywords if specified in custom -Tjson(...) or -Tcbor(...)
 * merge: replace magic strings with NAMED_CONSTANTS (API)
 * push: support config option to require revs be specified when running push

=== core ===
 * exchange: abort on pushing bookmarks pointing to secret changesets (Bts:issue6159)
 * exchange: avoid unnecessary conversion of bookmark nodes to hex (API)
 * revlog: add a 'sidedata' parameters to addrevision
 * revlog: add a way to control sidedata changes during revlog.clone
 * revlog: add the appropriate flag is sidedata are passed to 'addrevision'
 * revlog: assign rawtext earlier in '_revisiondata'
 * revlog: avoid caching raw text too early in _revisiondata
 * revlog: deprecate the use of 'revision(..., raw=True)'
 * revlog: drop silly 'raw' parameter to 'rawdata' function
 * revlog: explicitly set revlogv0 in vfs options
 * revlog: introduce a 'sidedata' method
 * revlog: move 'nullid' early return sooner in '_revisiondata'
 * revlog: return sidedata map from '_revisiondata'
 * revlog: stop calling 'basetext' 'rawtext' in _revisiondata
 * revlog: stop using '_processflags' directly
 * revlog: use the new sidedata map return in the sidedata method
 * templatefuncs: account for user's diffopts in diff() (BC)
 * ui: option to preserve the progress bar

=== extensions ===
 * eol: don't fallback to use .hgeol from tip (BC)
 * largefiles: use context manager for setting "lfstatus" on subrepos too
 * rebase: track new nodes when --keep is set
 * unshelve: abort on using --keep and --interactive together
 * unshelve: add abort on using continue and interactive together
 * unshelve: changes how date is set on interactive mode
 * unshelve: create a matcher only if required on creating unshelve ctx
 * unshelve: delete shelvedstate after a successful unshelve --continue
 * unshelve: forget unknown files after a partial unshelve
 * unshelve: handle stripping changesets on interactive mode
 * unshelve: store information about interactive mode in shelvedstate
 * unshelve: unify logic around creating an unshelve changeset

=== unsorted ===
 * automation: add a command to submit to a Try server
 * automation: support and use Debian Buster by default
 * changelog: make copies related function return None or a valid value
 * continue: added support for transplant
 * copies: remove existing copy info from the changeset on amend (BC)
 * demandimport: explicitly declare '_session' at the module level
 * discovery: replace "heads" by "changesets" in a output note (BC)
 * fastannotate: remove support for flock() locking
 * fix: warn when a fixer doesn't have a configured command
 * flagprocessors: deprecate _processflags
 * flagprocessors: have the read transform function return side data (API)
 * flagprocessors: writetransform function take side data as parameter (API)
 * flagutil: move REVIDX_KNOWN_FLAGS source of truth in flagutil (API)
 * flagutil: move addflagprocessor to the new module (API)
 * flagutil: move insertflagprocessor to the new module (API)
 * format: format commands.py, which recently regressed
 * grep: enable all-files by default (BC)
 * hg: have 'updatetotally' more thoroughly check updatecheck argument (API)
 * infinitepush: mark extension as likely to be deleted
 * narrow: don't hexify paths and double-hexify known nodes on wire (BC)
 * narrow: drop server support for widening using the getbundle command (BC)
 * notify: add option for deterministic message-id generation
 * py3: prevent comparison with None in curses histedit (Bts:issue6196)
 * python-zstandard: apply big-endian fix (Bts:issue6188)
 * remotefilelog: reduce probability of race-condition in remotefilelog tests
 * rust-dirstate-status: add call to rust-fast path for 'dirstate.status'
 * rust-dirstate-status: rust-cpython bindings for 'dirstate.status'
 * rust-dirstate-status: use fast-path even with fsmonitor and sparse extensions
 * rust-discovery: optionally don't randomize at all, for tests
 * sidedata: introduce a new requirement to protect the feature
 * split: handle partial commit of renames when doing split or record (Bts:issue5723)
 * sshserver: flush stream after command dispatch
 * test: allow different result for zstd compression (Bts:issue6188)
 * transplant: added support for --stop flag
 * uncommit: add options to update to the current user or current date
 * uncommit: add support to modify the commit message and date
 * uncommit: drop the hyphen from --current-user and --current-date
 * uncommit: enable support for adding a note
 * uncommit: make -D/--date and -U/--user mutually exclusive

=== Behavior Changes ===

 * copies: remove existing copy info from the changeset on amend (BC)
 * discovery: replace "heads" by "changesets" in a output note (BC)
 * eol: don't fallback to use .hgeol from tip (BC)
 * grep: enable all-files by default (BC)
 * narrow: don't hexify paths and double-hexify known nodes on wire (BC)
 * narrow: drop server support for widening using the getbundle command (BC)
 * templatefuncs: account for user's diffopts in diff() (BC)

=== Internal API Changes ===

 * bookmarks: remove changectx() method from bmstore (API)
 * exchange: avoid unnecessary conversion of bookmark nodes to hex (API)
 * flagprocessors: have the read transform function return side data (API)
 * flagprocessors: writetransform function take side data as parameter (API)
 * flagutil: move REVIDX_KNOWN_FLAGS source of truth in flagutil (API)
 * flagutil: move addflagprocessor to the new module (API)
 * flagutil: move insertflagprocessor to the new module (API)
 * hg: have 'updatetotally' more thoroughly check updatecheck argument (API)
 * merge: replace magic strings with NAMED_CONSTANTS (API)


== Mercurial 5.1.2 (2019-10-02) ==

Regularly scheduled bug fix release.

=== extensions ===
 * phabricator: don't abort if property writing fails during amending

=== tests ===
 * test: allow different result for zstd compression (Bts:issue6188)


== Mercurial 5.1.1 (2019-09-05) ==

Regularly scheduled bug fix release.

=== commands ===
 * bookmarks: actual fix for race condition deleting bookmark

=== core ===
 * exchange: abort on pushing bookmarks pointing to secret changesets (Bts:issue6159)
 * python-zstandard: apply big-endian fix (Bts:issue6188)
 * fncache: make debugrebuildfncache not fail on broken fncache

=== tests ===
 * various test runner fixes
 * fixed use of `tr --delete` for tr(1) portability


== Mercurial 5.1 (2019-08-01) ==

Regularly scheduled feature release. An [[Release5.1|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

=== commands ===
 * bookmark: also make bookmark cache depends of the changelog
 * bookmarks: actual fix for race condition deleting bookmark
 * bookmarks: actually trigger the race deleting bookmark in the test
 * bookmarks: backout the attempt to fix the delete race
 * bookmarks: keep bookmarks in .hg/store if new config set
 * bookmarks: use context manager when writing files
 * bookmarks: use correct store for "ambiguity check"
 * branch: abort if closing branch from a non-branchhead cset
 * branchcache: store the maximum tip in a variable inside for loop
 * commands: drop support for legacy ^cmd registration (API)
 * commit: add --force-close-branch flag to close a non-head changeset
 * commit: add a check if it is trying to close an already closed branch head
 * commit: add ability to print file status after each successful invocation
 * commit: allow --interactive to work again when naming a directory (Bts:issue6131)
 * commit: improve the files field of changelog for merges
 * commit: make the error message more specific while aborting branch closing
 * commit: respect --no-edit in combination with --amend
 * graft: moved abortgraft and readgraft to cmdutil
 * help: check if a subtopic exists and raise an error if it doesn't (Bts:issue6145)
 * log: add config for making 'hg log -G' always topo-sorted
 * log: flag topo-sorted set as such
 * log: pass getcopies() function instead of getrenamed() to displayer (API)
 * merge: disallow merge abort in case of an unfinished operation (Bts:issue6160)
 * patch: use a short, fixed-size message for last line of prompt (Bts:issue6158)
 * push: added clear warning message when pushing closed branches(Bts:issue6080)
 * tags: avoid double-reversing a list
 * verify: also check full manifest validity during verify runs
 * verify: introduce a notion of "level"
 * verify: introduce an experimental --full flag

=== core ===
 * docs: man page and HTML help now order commands categorically, instead of alphabetically
 * minirst: support subsubsubsubsections (header level 5) with marker `''''`
 * revlog: add the option to track the expected compression upper bound
 * revlog: speed up isancestor
 * templatekw: make {file_*} compare to both merge parents (Bts:issue4292)
 * templater: drop support for old style keywords (API)
 * util: make util.dirs() and util.finddirs() include root directory (API)

=== extensions ===
 * largefiles: make last line of prompts <40 english chars (Bts:issue6158)
 * mq: fix for merge detection methods
 * rebase: fix in-memory rebasing of copy of empty file
 * rebase: tweak description of inmemory working even w/ dirty working dir
 * shelve: modify help text on --interactive
 * unshelve: add interactive mode
 * unshelve: add space to help
 * unshelve: changed Corruptedstate error msg from ui.warn to error.Abort
 * unshelve: mark unshelve interactive as experimental

=== unsorted ===
 * abort: added support for graft
 * abort: added support for histedit
 * abort: added support for merge
 * abort: added support for rebase
 * abort: added support for unshelve
 * automation: initial support for running Linux tests
 * bisect: do not crash with rewritten commits
 * blackbox: disable extremely verbose logging (Bts:issue6110)
 * catapipe: add support for COUNTER events
 * changelog: define changelogrevision.p[12]copies for null revision
 * changelog: fix handling of empty copy entries in changeset
 * changelog: optionally store added and removed files in changeset extras
 * continue: added support for rebase
 * continue: added support for unshelve
 * copies: filter invalid copies only at end of pathcopies() (Bts:issue6163)
 * copies: follow copies across merge base without source file (Bts:issue6163)
 * debugrevlog: fix average size computation for empty data (Bts:issue6167)
 * drawdag: don't crash when writing copy info to changesets
 * extdata: avoid crashing inside subprocess when we get a revset parse error
 * extensions: drop support for extsetup() without 'ui' argument (API)
 * filemerge: make last line of prompts <40 english chars (Bts:issue6158)
 * graphmod: remove support for graph lines mixing parent/grandparent styles (BC)
 * manifest: avoid corruption by dropping removed files with pure (Bts:issue5801)
 * match: remove unused `match.__iter__` implementation (API)
 * match: use `''` instead of '.' for root directory (API)
 * procutil: allow callers of runbgcommand to assume the process starts
 * remotefilelog: check if RFL is enabled in getrenamedfn() override
 * remotefilelog: handle copies in changesets in getrenamedfn() override
 * remotefilelog: log when we're about to fetch files
 * remotefilelog: tell runbgcommand to not block on child process startup
 * root: add support for -Tformatter option
 * sslutil: add support for SSLKEYLOGFILE to wrapsocket
 * sslutil: fsencode path returned by certifi (Bts:issue6132)
 * statecheck: added support for STATES
 * subrepos: make last line of prompts <40 english chars (Bts:issue6158)
 * tests: make the grep pattern in remotefilelog-gcrepack portable (Bts:issue6122)
 * tests: work around libressl being different about error strings (Bts:issue6122)
 * tracing: add support for emitting counters
 * worker: support parallelization of functions with return values
 * zsh: enable completion support for chg as well

=== Behavior Changes ===

 * graphmod: remove support for graph lines mixing parent/grandparent styles (BC)

=== Internal API Changes ===

 * commands: drop support for legacy ^cmd registration (API)
 * extensions: drop support for extsetup() without 'ui' argument (API)
 * log: pass getcopies() function instead of getrenamed() to displayer (API)
 * match: remove unused `match.__iter__` implementation (API)
 * match: use `''` instead of '.' for root directory (API)
 * templater: drop support for old style keywords (API)
 * util: make util.dirs() and util.finddirs() include root directory (API)


== Mercurial 5.0.2 ==

A regularly scheduled bugfix release.

=== commands ===
 * Help fixes on hg mv and hg cp

=== unsorted ===
 * debugrevlog: fix average size computation for empty data (Bts:issue6167)
 * Fix an obscure data corruption bug with musl libc (and presumably others). See [[https://www.mercurial-scm.org/repo/hg-committed/rev/97ada9b8d51b the fix]] for more details.


== Mercurial 5.0.1 ==

A regularly scheduled bugfix release.

=== commands ===
 * bookmark: also make bookmark cache depends of the changelog
 * commit: allow --interactive to work again when naming a directory (Bts:issue6131)

=== unsorted ===
 * manifest: avoid corruption by dropping removed files with pure (Bts:issue5801)
 * sslutil: fsencode path returned by certifi (Bts:issue6132)

== Mercurial 5.0 (2019-05-01) ==

An [[Release5.0|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

== Mercurial 4.9.1 (2019-03-19) ==

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

=== commands ===
 * record: prevent commits that don't pick up dirty subrepo changes (Bts:issue6102)

=== extensions ===
 * rebase: add missing dashes in help text

=== unsorted ===
 * subrepo: avoid false unsafe path detection on Windows
 * test-https: add some more known failure messages of client certs (Bts:issue6030)


== Mercurial 4.9 (2019-02-01) ==

An [[Release4.9|overview of new features]] available. This is a regularly-scheduled quarterly feature release that also contains security fixes.

=== 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.

=== commands ===
 * archive: use manifest.matches() to simplify and speed up matching
 * branch: allow changing branch of merge commits with --rev
 * branches: add -r option to show branch name(s) of a given rev (Bts:issue5948)
 * graft: abort if --date/user specified with --currentdate/currentuser (BC)
 * graft: introduce --base option for using custom base revision while merging
 * help: add internals.extensions topic
 * help: show advanced, experimental and deprecated extensions with --verbose
 * log: fix line wrap on diffstat with -G/--graph (Bts:issue5800)
 * merge: make local file storage in the .hg/merge directory extensible
 * pull: fix inconsistent view of bookmarks during pull (Bts:issue4700)
 * push: add --publish flag to change phase of pushed changesets
 * push: config option to control behavior when pushing to a publishing server
 * resolve: fix mark-check when a file was deleted on one side (Bts:issue6020)
 * tags: cache 'repo.changelog' access when checking tags nodes
 * update: fix edge-case with update.atomic-file and read-only files

=== core ===
 * revlog: always enable generaldelta on version 2 revlogs
 * revlog: make sure we never use sparserevlog without general delta (Bts:issue6056)
 * revset: enforce "%d" to be interpreted as literal revision number (API) (BC)
 * revset: introduce an API that avoids 'formatspec' input serialization
 * revsets: make bookmark/named('re:nonexistent') not abort (Bts:issue6018) (BC)
 * templatekw: deprecate p1rev/p2rev/p1node/p2node in favor of p1/p2
 * templatekw: fix crash on multiple latesttags resolution at wdir (Bts:issue6055)
 * templater: check invalid use of list expression properly (Bts:issue5920)
 * transaction: display data about why the transaction failed to rollback
 * ui: add config knob to redirect status messages to stderr (API)
 * ui: remove unreachable branches and function calls from write() (Bts:issue6059)
 * vfs: also audit rename
 * wireproto: in batch queries, support queries with immediate responses

=== extensions ===
 * absorb: don't prompt to apply changes when there are none to apply
 * amend: add -D/--currentdate option
 * amend: add config option to update time to current in hg amend (Bts:issue5828)
 * blackbox: add configitem for format of log timestamps
 * bookflow: new extension for bookmark-based branching
 * convert: don't drop commits that are empty in the source when using --filemap
 * extensions: deprecate extsetup without a 'ui' argument (API)
 * extensions: import the exthelper class from evolve 980565468003 (API)
 * fix: add a config to abort when a fixer tool fails
 * fix: add extra field to fixed revisions to avoid creating obsolescence cycles
 * fix: add suboption for configuring execution order of tools
 * histedit: add rewrite.update-timestamp support to fold and mess
 * histedit: add warning message on editing tagged commits (Bts:issue4017)
 * histedit: drop unused constructor arguments (API)
 * histedit: fix --continue and --abort when curses is enabled
 * histedit: import chistedit curses UI from hg-experimental
 * lfs: improve the hints for common errors in the Batch API
 * logtoprocess: drop support for ui.log() call with invalid msg arguments (BC)
 * logtoprocess: leverage procutil.shellenviron() to stringify variables (BC)
 * narrow: don't resurrect old commits when narrowing (don't strip obsmarkers)
 * narrow: drop the bundle2 capability since we have server capabilities (BC)
 * phabricator: teach {phabreview} to work without --amend
 * phabricator: warn if unable to amend, instead of aborting after posting
 * remotefilelog: fix {file_copies} template keyword
 * remotefilelog: import pruned-down remotefilelog extension from hg-experimental
 * sparse: don't enable on clone if it was a narrow clone
 * strip: compute bookmark target only if we have bookmark to move

=== unsorted ===
 * changegroup: add a option to create bundle with full snapshot only
 * changegroup: allow to force delta to be against p1
 * commandserver: add IPC channel to teach repository path on command finished
 * commandserver: add config knob for various logging options
 * commandserver: add experimental option to use separate message channel
 * commandserver: send raw progress information to message channel
 * filecache: unimplement `__set__`() and `__delete__`() (API)
 * http: allow 'auth.prefix' to have a username consistent with the URI
 * match: support rooted globs in hgignore
 * merge-tools: when calling external merge tool, describe the resolve inputs
 * mergetools: adjust Beyond Compare config on Mac/Linux
 * obsutil: fix the Bts:issue5686
 * progress: deprecate ui.progress()
 * rust-cpython: binding for !AncestorsIterator
 * rust-cpython: binding for !LazyAncestors
 * rust-cpython: bindings for !MissingAncestors
 * sparse-revlog: disable sparse-revlog if config disable general-delta
 * sparse-revlog: enabled by default
 * storage: update sqlitestore to use the new 'deltamode' parameter
 * store: raise !ProgrammingError if unable to decode a storage path
 * subrepo: extend path auditing test to include more weird patterns (SEC)
 * subrepo: prohibit variable expansion on creation of hg subrepo (SEC)
 * subrepo: reject potentially unsafe subrepo paths (BC) (SEC)

=== Behavior Changes ===

 * graft: abort if --date/user specified with --currentdate/currentuser (BC)
 * logtoprocess: drop support for ui.log() call with invalid msg arguments (BC)
 * logtoprocess: leverage procutil.shellenviron() to stringify variables (BC)
 * narrow: drop the bundle2 capability since we have server capabilities (BC)
 * revset: enforce "%d" to be interpreted as literal revision number (API) (BC)
 * revsets: make bookmark/named('re:nonexistent') not abort (Bts:issue6018) (BC)
 * subrepo: reject potentially unsafe subrepo paths (BC) (SEC)

=== Internal API Changes ===

 * extensions: deprecate extsetup without a 'ui' argument (API)
 * extensions: import the exthelper class from evolve 980565468003 (API)
 * filecache: unimplement `__set__`() and `__delete__`() (API)
 * histedit: drop unused constructor arguments (API)
 * revset: enforce "%d" to be interpreted as literal revision number (API) (BC)
 * ui: add config knob to redirect status messages to stderr (API)


== Mercurial 4.8.2 (2019-01-07) ==

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

=== commands ===
 * update: do not pass in user revspec as default destination (Bts:issue6044)

=== core ===
 * match: fix assertion for fileset with no context (Bts:issue6046)
 * revlog: catch delta base value under -1
 * revlog: catch revlog corruption in index_baserev
 * server: always close http socket if responding with an error (Bts:issue6033)
 * vfs: ensure closewrapbase fh doesn't escape by entering context manager

=== extensions ===
 * phabricator: properly encode boolean types in the request body

=== unsorted ===
 * windows: ensure mixedfilemodewrapper fd doesn't escape by entering context mgr
 * worker: do not swallow exception occurred in main process


== 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.

=== commands ===
 * commandserver: get around ETIMEDOUT raised by selectors2
 * graft: do not try to skip rev derived from ancestor more than once (Bts:issue6024)
 * verify: provide unit to ui.makeprogress()

=== core ===
 * revlog: fix out-of-bounds access by negative parents read from revlog (SEC)

=== extensions ===
 * rebase: abort in-mem rebase if there's a dirty merge state
 * rebase: fix dir/file conflict detection when using in-mem merge
 * rebase: fix path auditing to audit path relative to repo root (Bts:issue5818)
 * rebase: preserve working copy when redoing in-mem rebase on disk

=== unsorted ===
 * tests: stabilize test-inherit-mode.t on FreeBSD and macOS (Bts:issue6026)


== Mercurial 4.8 (2018-11-02) ==

An [[Release4.8|overview of new features]] available. This is a regularly-scheduled quarterly feature release.

=== commands ===
 * add: add a label for messages about added files
 * addremove: add labels for messages about added and removed files
 * annotate: pass in wdir rev and node to formatter (BC)
 * annotate: rename {line_number} to {lineno} (BC)
 * bookmarks: add explicit option to list bookmarks of the given names
 * bookmarks: pass in formatter to printbookmarks() instead of opts (API)
 * clone: allow local cloning to create more than one level of directories
 * debugcommands: introduce debugrevlogindex (BC)
 * debugcommands: use openstorage() in debugdata (BC)
 * grep: add MULTIREV support to --allfiles flag
 * grep: rename {line_number} to {lineno} as well (BC)
 * grep: search all commits in allfiles mode
 * help: adding a proper declaration for shortlist/basic commands (API)
 * help: adding support for command categories
 * identify: change {parents} to a list of nodes (BC)
 * identify: show remote bookmarks in 'hg id url -Tjson -B'
 * log: have changesetformatter fill in wdir() rev and node (BC)
 * log: respect graphshorten on terminal nodes (collapsing o-~ to just o~)
 * merge: improve interactive one-changed one-deleted message (Bts:issue5550)
 * phase: explicitly exclude secret phase and above
 * phase: expose a '_phase(idx)' revset
 * phase: handle phase with no command flag
 * phase: report number of non-public changeset alongside the new range
 * push: add "remote" to 'repository changed while pushing' messages (Bts:issue5971)
 * remove: add a label for messages about removed files
 * rename: return error status if any rename/copy failed
 * resolve: add a flag for the default behavior of re-merging
 * resolve: add config to make hg resolve not re-merge by default
 * resolve: add confirm config option
 * resolve: add option to warn/abort on -m with unresolved conflict markers
 * resolve: graduate resolve.mark-check from experimental, add docs
 * resolve: rename {status} to {mergestatus} to not shadow change status (BC)
 * status: advertise --abort instead of 'update -C .' to abort a merge
 * status: advertise --abort instead of 'update -C .' to abort graft
 * status: remove "morestatus" message from formatter data (BC)
 * status: rename {copy} to {source} for compatibility with {file_copies} (BC)
 * verify: make output less confusing (Bts:issue5924)

=== core ===
 * context: drop compatibility for 'context.descendant' (API)
 * context: move logic from `changectx.__init__` to `localrepo.__getitem__` (API)
 * context: remove unused overlayfilectx (API)
 * dispatch: don't show list of commands on bogus command
 * dispatch: making all hg abortions be output with a specific label
 * dispatch: show a short error message when invalid global option given
 * exchange: support declaring pull depth
 * exchange: support defining narrow file patterns for pull
 * filelog: add a hasnode() method (API)
 * filelog: drop _generaldelta attribute (API)
 * filelog: drop index attribute (API)
 * filelog: remove checkhash() (API)
 * filelog: remove revdiff() (API)
 * filelog: remove version attribute (API)
 * filelog: stop proxying "opener" (API)
 * filelog: stop proxying _addrevision() (API)
 * filelog: stop proxying checksize() (API)
 * filelog: stop proxying compress() (API)
 * filelog: stop proxying datafile (API)
 * filelog: stop proxying deltaparent() (API)
 * filelog: stop proxying flags() (API)
 * filelog: stop proxying headrevs() (API)
 * filelog: stop proxying rawsize() (API)
 * filelog: stop proxying start(), end(), and length() (API)
 * localrepo: add repository feature when repo can be stream cloned
 * localrepo: add requirement when narrow files creation option present
 * localrepo: automatically load lfs extension when required (BC)
 * localrepo: define "features" on repository instances (API)
 * localrepo: define storage backend in creation options (API)
 * localrepo: move repo creation logic out of `localrepository.__init__` (API)
 * localrepo: pass ui to newreporequirements() (API)
 * localrepo: support marking repos as having shallow file storage
 * localrepo: support writing shared file (API)
 * pager: do not enable when TERM=dumb
 * repository: establish API for emitting revision deltas
 * revlog: add method for obtaining storage info (API)
 * revlog: drop !LookupError alias (API)
 * revlog: drop !RevlogError alias (API)
 * revlog: drop compatibility for 'revlog.descendant' (API)
 * revlog: drop emitrevisiondeltas() and associated functionality (API)
 * revlog: drop some more error aliases (API)
 * revlog: new API to emit revision data
 * revlog: reuse cached delta for identical base revision (Bts:issue5975)
 * revset: expand bookmark(.) to the active bookmark
 * revsetlang: fix position of '-' in spaceless 'a-b' expressions
 * streamclone: don't support stream clone unless repo feature present
 * streamclone: include obsstore file into stream bundle if client can read it
 * templatefuncs: add truncate parameter to pad
 * templatekw: add experimental {status} keyword
 * templatekw: deprecate old-style template keyword function (API)
 * templates: rename "user" to "luser" defined in default map file (API)
 * tracing: new module to make tracing events in hg easier
 * tracing: trace command function execution
 * transaction: make entries a private attribute (API)
 * transaction: remember original len(repo) instead of tracking added revs (API)
 * util: make timedcm require the label (API)
 * wireprotov2: add bookmarks to "changesetdata" command
 * wireprotov2: add phases to "changesetdata" command
 * wireprotov2: client support for advertising redirect targets
 * wireprotov2: client support for following content redirects
 * wireprotov2: define and implement "changesetdata" command
 * wireprotov2: define and implement "filedata" command
 * wireprotov2: define and implement "filesdata" command
 * wireprotov2: define and implement "manifestdata" command
 * wireprotov2: server support for sending content redirects
 * wireprotov2: support response caching

=== extensions ===
 * absorb: import extension from Facebook's hg-experimental
 * absorb: print '{rev}:' as a prefix to the hash
 * absorb: print summary of changesets affected
 * absorb: prompt user to accept absorb changes by default
 * amend: support "history-editing-backup" config option
 * closehead: fix close-head -r listification
 * commitextras: work nicely with other extensions
 * convert: fix a file descriptor leak
 * extension: add a summary of total loading time per extension
 * extensions: add detailed loading information
 * extensions: new closehead module for closing arbitrary heads
 * fastannotate: initial import from Facebook's hg-experimental
 * fastannotate: make the default value for 'fastannotate.useflock' dynamic
 * fix: add a monkey-patchable point after all new revisions have been committed
 * fix: compute changed lines lazily to make whole-file fixer tools faster
 * fix: determine fixer tool failure by exit code instead of stderr
 * fix: pull out flag definitions to make them re-usable from extensions
 * fsmonitor: use vfs instead of opener (Bts:issue5938)
 * journal: do not pass in repolookuperror string to template (BC)
 * journal: unify template name for "nodes" (BC)
 * largefiles: automatically load largefiles extension when required (BC)
 * lfs: add repository feature denoting the use of LFS
 * lfs: autoload the extension when cloning from repo with lfs enabled
 * lfs: consult the narrow matcher when extracting pointers from ctx (Bts:issue5794)
 * lfs: don't add extension to hgrc after clone or share (BC)
 * lfs: don't add extension to hgrc after conversion (BC)
 * logtoprocess: connect all fds to /dev/null to avoid bad interaction with pager
 * logtoprocess: define $HG for children processes
 * narrow: add '--import-rules' flag to tracked command
 * narrow: add a --narrowspec flag to clone command
 * narrow: add narrow and ellipses as server capabilities
 * narrow: add server logic to send cg while widening without ellipsis
 * narrow: check for servers' narrow support before doing anything (BC)
 * narrow: drop support for remote expansion (BC)
 * narrow: introduce a config option to check if narrow is enabled or not
 * narrow: move .hg/narrowspec to .hg/store/narrowspec (BC)
 * narrow: move support for 'hg verify' into core
 * narrow: the first version of narrow_widen wireprotocol command
 * narrow: validate spec files are well-formed during clone (BC)
 * patchbomb: allow using HGHOSTNAME to force a hostname
 * phabricator: drop support for the legacy phabricator.auth.token config (BC)
 * phabricator: mark extension as experimental for now
 * rebase: add --stop option to stop rebase at any point (Bts:issue5206)
 * rebase: don't try to prune obsolete changeset already in the destination
 * rebase: explicitly track collapses as fold
 * rebase: skip extinct revisions even if it has no successor in rebase set
 * rebase: support "history-editing-backup" config option
 * remotenames: add names argument to remotenames revset
 * share: allow more than one level of directories to be created
 * shelve: add an "internal" extra
 * shelve: fix crash on unshelve without .shelve metadata file
 * shelve: use the internal phase when possible
 * sqlitestore: file storage backend using SQLite
 * strip: ignore orphaned internal changesets while computing safe strip roots
Line 24: Line 830:

 * 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 [[http://docutils.sourceforge.net/rst.html|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: many improvements, this should now be quite stable
 * 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 [[subrepos|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 [[ShareExtension|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 [[http://cia.vc/|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 ([[http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2942|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 [[MergeToolConfiguration|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		  * hgweb: add error template to json so it won't crash
 * hgweb: map Abort to 403 error to report inaccessible path for example
 * hgweb: show shortlog by default in json output (Bts:issue5978)
 * hgweb: use scmutil.binnode() to translate None to wdir hash (Bts:issue5988)

=== chg ===
 * chgserver: add "setumask2" command which uses correct message frame
 * chgserver: restore pager fds attached within runcommand session
 * rust-chg: add Client extensions to run cHg-specific requests
 * rust-chg: add callback to handle pager and shell command requests

=== unsorted ===
 * ancestors: actually iterate over ancestors in topological order (Bts:issue5979)
 * bundle2: graduate bundle2.stream option from experimental to server section
 * changegroup: pass sorted revisions into group() (API)
 * changegroup: port to emitrevisions() (Bts:issue5976)
 * changegroup: remove reordering control (BC)
 * changegroup: restore default node ordering (Bts:issue6001)
 * cleanupnodes: drop special casing around prune markers (API)
 * commands: restore compatibility for "^cmd" registration (Bts:issue6005)
 * copies: improve logic of deciding copytracing on based of config options
 * crecord: make nextsametype() check that parent item exists (Bts:issue6009)
 * crecord: make enter move cursor down to the next item of the same type
 * delta: skip "empty delta" optimisation for non-general case (Bts:issue6006)
 * error: introduce !StorageError
 * filemerge: add config knob to check capabilities of internal merge tools
 * filemerge: show warning if chosen tool has no binary files capability
 * fileset: extract language processing part to new module (API)
 * fileset: optimize 'x and not y' to 'x - y'
 * fileset: roughly adjust weights of functions
 * formatter: remove experimental marker from -T option
 * formatter: rename {abspath}/{file} to {path}, and drop relative {path} (BC)
 * global: replace most uses of !RevlogError with !StorageError (API)
 * hg: allow extra arguments to be passed to repo creation (API)
 * httppeer: expose capabilities for each command
 * index: drop support for negative indexes into the index
 * index: handle index[-1] as nullid more explicitly
 * linelog: fix infinite loop vulnerability
 * lookup: add option to disambiguate prefix within revset
 * mail: always fall back to iso-8859-1 if us-ascii won't work (BC)
 * mail: modernize check for Python-with-TLS
 * manifest: add rawsize() proxy (API)
 * meld: enable auto-merge
 * mergetool: warn if ui.merge points to nonexistent tool
 * narrowspec: limit patterns to path: and rootfilesin: (BC)
 * narrowspec: use sparse.parseconfig() to parse narrowspec file (BC)
 * obsolete: fix !ValueError when stored note contains ':' char (Bts:issue5783)
 * overlayworkingctx: fix exception in metadata-only inmemory merges (Bts:issue5960)
 * phase: add an archived phase
 * phases: add an internal phases
 * pullreport: issue a message about "extinct" pulled changesets
 * py3: rename pycompat.getcwd() to encoding.getcwd() (API)
 * revisions: allow "x123" to refer to nodeid prefix "123"
 * scmutil: accept multiple predecessors in 'replacements' (API)
 * shortest: never emit 0-length prefix even if unique
 * shortest: use 'x' prefix to disambiguate from revnum if configured
 * sparse-revlog: only refine delta candidates in the sparse case (Bts:issue6006)
 * statprof: fix indent level of fp.write() (Bts:issue6004)
 * statprof: update the name as the i increases (Bts:issue6003)
 * storageutil: consistently raise !LookupError (API)
 * storageutil: implement file identifier resolution method (BC)
 * storageutil: move metadata parsing and packing from revlog (API)
 * storageutil: new module for storage primitives (API)
 * url: allow to configure timeout on http connection

=== Behavior Changes ===

 * annotate: pass in wdir rev and node to formatter (BC)
 * annotate: rename {line_number} to {lineno} (BC)
 * changegroup: remove reordering control (BC)
 * debugcommands: introduce debugrevlogindex (BC)
 * debugcommands: use openstorage() in debugdata (BC)
 * formatter: rename {abspath}/{file} to {path}, and drop relative {path} (BC)
 * grep: rename {line_number} to {lineno} as well (BC)
 * identify: change {parents} to a list of nodes (BC)
 * journal: do not pass in repolookuperror string to template (BC)
 * journal: unify template name for "nodes" (BC)
 * largefiles: automatically load largefiles extension when required (BC)
 * lfs: don't add extension to hgrc after clone or share (BC)
 * lfs: don't add extension to hgrc after conversion (BC)
 * localrepo: automatically load lfs extension when required (BC)
 * log: have changesetformatter fill in wdir() rev and node (BC)
 * mail: always fall back to iso-8859-1 if us-ascii won't work (BC)
 * narrow: check for servers' narrow support before doing anything (BC)
 * narrow: drop support for remote expansion (BC)
 * narrow: move .hg/narrowspec to .hg/store/narrowspec (BC)
 * narrow: validate spec files are well-formed during clone (BC)
 * narrowspec: limit patterns to path: and rootfilesin: (BC)
 * narrowspec: use sparse.parseconfig() to parse narrowspec file (BC)
 * phabricator: drop support for the legacy phabricator.auth.token config (BC)
 * resolve: rename {status} to {mergestatus} to not shadow change status (BC)
 * status: remove "morestatus" message from formatter data (BC)
 * status: rename {copy} to {source} for compatibility with {file_copies} (BC)
 * storageutil: implement file identifier resolution method (BC)

=== Internal API Changes ===

 * bookmarks: pass in formatter to printbookmarks() instead of opts (API)
 * changegroup: pass sorted revisions into group() (API)
 * cleanupnodes: drop special casing around prune markers (API)
 * context: drop compatibility for 'context.descendant' (API)
 * context: move logic from `changectx.__init__` to `localrepo.__getitem__` (API)
 * context: remove unused overlayfilectx (API)
 * filelog: add a hasnode() method (API)
 * filelog: drop _generaldelta attribute (API)
 * filelog: drop index attribute (API)
 * filelog: remove checkhash() (API)
 * filelog: remove revdiff() (API)
 * filelog: remove version attribute (API)
 * filelog: stop proxying "opener" (API)
 * filelog: stop proxying _addrevision() (API)
 * filelog: stop proxying checksize() (API)
 * filelog: stop proxying compress() (API)
 * filelog: stop proxying datafile (API)
 * filelog: stop proxying deltaparent() (API)
 * filelog: stop proxying flags() (API)
 * filelog: stop proxying headrevs() (API)
 * filelog: stop proxying rawsize() (API)
 * filelog: stop proxying start(), end(), and length() (API)
 * fileset: extract language processing part to new module (API)
 * global: replace most uses of !RevlogError with !StorageError (API)
 * help: adding a proper declaration for shortlist/basic commands (API)
 * hg: allow extra arguments to be passed to repo creation (API)
 * localrepo: define "features" on repository instances (API)
 * localrepo: define storage backend in creation options (API)
 * localrepo: move repo creation logic out of `localrepository.__init__` (API)
 * localrepo: pass ui to newreporequirements() (API)
 * localrepo: support writing shared file (API)
 * manifest: add rawsize() proxy (API)
 * py3: rename pycompat.getcwd() to encoding.getcwd() (API)
 * revlog: add method for obtaining storage info (API)
 * revlog: drop !LookupError alias (API)
 * revlog: drop !RevlogError alias (API)
 * revlog: drop compatibility for 'revlog.descendant' (API)
 * revlog: drop emitrevisiondeltas() and associated functionality (API)
 * revlog: drop some more error aliases (API)
 * scmutil: accept multiple predecessors in 'replacements' (API)
 * storageutil: consistently raise !LookupError (API)
 * storageutil: move metadata parsing and packing from revlog (API)
 * storageutil: new module for storage primitives (API)
 * templatekw: deprecate old-style template keyword function (API)
 * templates: rename "user" to "luser" defined in default map file (API)
 * transaction: make entries a private attribute (API)
 * transaction: remember original len(repo) instead of tracking added revs (API)
 * util: make timedcm require the label (API)

== Mercurial 4.7.2 (2018-10-01) ==
This is a regularly-scheduled bugfix release containing following fixes:

=== security ===

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

=== core ===
 * various minor correctness fixes in revsets for commonancestors() and similar

=== unsorted ===
 * chgserver: do not send system() back to client if stdio redirected (Bts:issue5992)
 * procutil: compare fd number to see if stdio protection is needed (Bts:issue5992)

== Mercurial 4.7.1 (2018-09-04) ==

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

=== commands ===
 * merge: do not delete untracked files silently (Bts:issue5962)

=== core ===
 * revlog: fix descendant deprecated method

=== hgweb ===
 * hgweb: load revcount + 1 entries to fill nextentry in log page (Bts:issue5972)

=== performance ===
 * remotephase: avoid full changelog iteration (Bts:issue5964)
 * remotephase: fast path newheads computation in simple case (Bts:issue5964)
 * scmutil: avoid quadratic membership testing (Bts:issue5969)
 * sparse-revlog: fix delta validity computation

== 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 [[Release4.7|Full release notes]].

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.

Contents

  1. Mercurial 6.8 (2024-07-08) to 6.8.1 (2024-08-01)
  2. Mercurial 6.7 (2024-03-15) to 6.7.4 (2024-06-12)
  3. Mercurial 6.6 (2023-11-21) to 6.6.3 (2024-02-12)
  4. Mercurial 6.5 (2023-07-06) to 6.5.3 (2023-10-06)
  5. Mercurial 6.4 (2023-03-24) to 6.4.5 (2023-06-22)
  6. Mercurial 6.3 (2022-11-14) to 6.3.3 (2023-03-02)
  7. Mercurial 6.2 (2022-07-11) to 6.2.3 (2022-10-04)
  8. Mercurial 6.1 (2022-03-01) to 6.1.4 (2022-06-16)
  9. Mercurial 6.0 (2021-11-23) to 6.0.3 (2022-02-18)
  10. Mercurial 5.9 to 5.9.3 (2021-08-20)
  11. Mercurial 5.8 (2021-05-03)
  12. Mercurial 5.7.1 (2021-03-08)
  13. Mercurial 5.7 (2021-01-29)
  14. Mercurial 5.6.1 (2020-12-03)
  15. Mercurial 5.6 (2020-11-02)
  16. Mercurial 5.5.2 (2020-10-02)
  17. Mercurial 5.5.1 (2020-09-01)
  18. Mercurial 5.5 (2020-08-03)
  19. Mercurial 5.4.2 (2020-07-01)
  20. Mercurial 5.4.1 (2020-06-15)
  21. Mercurial 5.4 (2020-05-01)
  22. Mercurial 5.3.2 (2020-04-02)
  23. Mercurial 5.3.1 (2020-03-04)
  24. Mercurial 5.3 (2020-02-03)
  25. Mercurial 5.2 (2019-11-05)
  26. Mercurial 5.1.2 (2019-10-02)
  27. Mercurial 5.1.1 (2019-09-05)
  28. Mercurial 5.1 (2019-08-01)
  29. Mercurial 5.0.2
  30. Mercurial 5.0.1
  31. Mercurial 5.0 (2019-05-01)
  32. Mercurial 4.9.1 (2019-03-19)
  33. Mercurial 4.9 (2019-02-01)
  34. Mercurial 4.8.2 (2019-01-07)
  35. Mercurial 4.8.1 (2018-12-04)
  36. Mercurial 4.8 (2018-11-02)
  37. Mercurial 4.7.2 (2018-10-01)
  38. Mercurial 4.7.1 (2018-09-04)
  39. Mercurial 4.7 (2018-08-01)

(See the archive for older versions)

1. Mercurial 6.8 (2024-07-08) to 6.8.1 (2024-08-01)

Regularly scheduled major release. An overview of new features is available.

2. Mercurial 6.7 (2024-03-15) to 6.7.4 (2024-06-12)

/!\ 6.7.1, 6.7.2 and 6.7.3 are affected with a data loss critcal bug.

Regularly scheduled major release. An overview of new features is available.

3. Mercurial 6.6 (2023-11-21) to 6.6.3 (2024-02-12)

Regularly scheduled major release. An overview of new features is available.

4. Mercurial 6.5 (2023-07-06) to 6.5.3 (2023-10-06)

Regularly scheduled major release. An overview of new features is available.

5. Mercurial 6.4 (2023-03-24) to 6.4.5 (2023-06-22)

Regularly scheduled (but very late) major release. An overview of new features is available.

6. Mercurial 6.3 (2022-11-14) to 6.3.3 (2023-03-02)

Regularly scheduled major release (delayed for a number of factors). An overview of new features available.

6.3.1 is an extra release following some upstream Python 3.11 breakage of how regex flags work.

7. Mercurial 6.2 (2022-07-11) to 6.2.3 (2022-10-04)

Regularly scheduled major release. An overview of new features available. This is the first Python 3 only version.

8. Mercurial 6.1 (2022-03-01) to 6.1.4 (2022-06-16)

Regularly scheduled major release. An overview of new features available. This is the last version to support Python 2.

9. Mercurial 6.0 (2021-11-23) to 6.0.3 (2022-02-18)

Regularly scheduled feature release. An overview of new features available. This is a regularly-scheduled quarterly feature release. It was delayed from the usual calendar due to the ongoing effort to make Windows support more robust, especially on Python 3.

10. Mercurial 5.9 to 5.9.3 (2021-08-20)

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

11. Mercurial 5.8 (2021-05-03)

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

12. Mercurial 5.7.1 (2021-03-08)

Regularly scheduled bug fix release.

12.1. commands

  • log: fix handling of root (or empty) path provided by matcher (issue6478)

  • patch: fix a formatting issue
  • patch: make diff --git to differentiate b/w file is empty or doesn't exists

12.2. core

  • hooks: introduce a ':run-with-plain' option for hooks

12.3. extensions

  • largefiles: properly pass kwargs into url.open

12.4. unsorted

  • procutil: extend gui test to detect wayland session (issue6479)

  • rust-status: honor matcher when using the dirstate-only fast-path (issue6483)

  • tests: add a test to demonstrate a bug in 'hg diff --git' (issue6486)

13. Mercurial 5.7 (2021-01-29)

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

14. Mercurial 5.6.1 (2020-12-03)

Regularly scheduled bug fix release.

14.1. extensions

  • rebase: clear merge state when aborting in-memory merge on dirty working copy

14.2. unsorted

  • crecord: render chunkpad on Windows (issue6427)

  • diff: do not concatenate immutable bytes while building a/b bodies (issue6445)

15. Mercurial 5.6 (2020-11-02)

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

16. Mercurial 5.5.2 (2020-10-02)

Regularly scheduled bug fix release.

16.1. commands

  • log: fix crash and bad filematcher lookup by -fr'wdir()' PATH

16.2. unsorted

  • hgdemandimport: bypass demandimport for _ast module (issue6407)

  • hgdemandimport: exclude more sqlalchemy modules

  • strip: with --keep, consider all revs "removed" from the wcp (issue6270)

17. Mercurial 5.5.1 (2020-09-01)

Regularly scheduled bug fix release.

17.1. bug fixes

  • keepalive: Do not append _rbuf if _raw_readinto exists (issue6356)

18. Mercurial 5.5 (2020-08-03)

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

19. Mercurial 5.4.2 (2020-07-01)

Regularly scheduled bug fix release.

19.1. extensions

  • rebase: avoid clobbering wdir() with --dry-run or --confirm (issue6291)

19.2. unsorted

  • curses: do not initialize LC_ALL to user settings (issue6358)

20. Mercurial 5.4.1 (2020-06-15)

Regularly scheduled bug fix release.

20.1. commands

  • graft-state: save --base in graft's state, fixing bug with graft --continue
  • graft: fix --base value to be saved in state file

20.2. core

  • dirstate: make sure the dirstate is loaded before the changelog (issue6303)

20.3. unsorted

  • bash_completion: do not use aliased hg if it sources a script (issue6308)

  • demandimport: fix compatibility with meta path finders w/o find_spec() method

  • flags: read flag from dirstate/disk for workingcopyctx (issue5743)

  • fsmonitor: coerce 'clock' variable to byte-string (issue6321)

  • url: fix a bytes vs str crash in processing proxy headers (issue6249)

21. Mercurial 5.4 (2020-05-01)

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

22. Mercurial 5.3.2 (2020-04-02)

Regularly scheduled bug fix release.

22.1. unsorted

  • discovery: avoid wrong detection of multiple branch heads (issue6256)

  • gzip: use the stdlib version with python 3 (issue6284)

23. Mercurial 5.3.1 (2020-03-04)

Regularly scheduled bug fix release.

23.1. commands

  • branch: make --force work even when specifying revs
  • import: don't ignore '--secret' when '--bypass' is specified

23.2. extensions

  • shelve: fix ordering of merge labels

23.3. unsorted

  • phabricator: fix a phabsend crash when processing a renamed binary

  • remotefilelog-test: glob some flaky output line (issue6083)

  • remotefilelog: add 'changelog' arg to shallowcg1packer.generate (issue6269)

24. Mercurial 5.3 (2020-02-03)

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

25. Mercurial 5.2 (2019-11-05)

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

25.1. 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

  • this is a significant change from past behavior, but surveys of large bodies of users indicated nobody used (and almost nobody understood) the previous no-flags behavior of 'hg grep'. The new behavior aligns with the behavior most users expected (including hg's maintainers), which also happens to be the behavior of 'git grep'. Given that the old behavior was confusing to the point of being unusable, we were comfortable changing this behavior.

25.2. API Changes

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

  • a set of NAMED_CONSTANTS ('merge.UPDATECHECK_*' constants) rather than a collection of magic strings. As of now, the values are the same, but code should be prepared for these values to change in the future.

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

  • 'updatecheck' keyword argument. Previously invalid values would have used

    the configured default updatecheck method, but now will raise ValueError.

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

  • up changectx instances from a bookmark name. Use 'repo[repo.bookmarks[name]]' intead of 'repo.bookmarks.changectx(name)'.

25.3. commands

  • amend: add option to update to the current user
  • amend: enable support for closing the branch
  • amend: enable support for using the secret phase
  • bookmarks: actual fix for race condition deleting bookmark
  • bookmarks: remove changectx() method from bmstore (API)
  • branchmap: explicitly warm+write all subsets of the branchmap caches
  • import: add debug messages when parsing data from patch header
  • import: read X-Mercurial-Node email header to determine nodeid
  • log: populate keywords if specified in custom -Tjson(...) or -Tcbor(...)
  • merge: replace magic strings with NAMED_CONSTANTS (API)
  • push: support config option to require revs be specified when running push

25.4. core

  • exchange: abort on pushing bookmarks pointing to secret changesets (issue6159)

  • exchange: avoid unnecessary conversion of bookmark nodes to hex (API)
  • revlog: add a 'sidedata' parameters to addrevision
  • revlog: add a way to control sidedata changes during revlog.clone
  • revlog: add the appropriate flag is sidedata are passed to 'addrevision'
  • revlog: assign rawtext earlier in '_revisiondata'
  • revlog: avoid caching raw text too early in _revisiondata
  • revlog: deprecate the use of 'revision(..., raw=True)'
  • revlog: drop silly 'raw' parameter to 'rawdata' function
  • revlog: explicitly set revlogv0 in vfs options
  • revlog: introduce a 'sidedata' method
  • revlog: move 'nullid' early return sooner in '_revisiondata'
  • revlog: return sidedata map from '_revisiondata'
  • revlog: stop calling 'basetext' 'rawtext' in _revisiondata
  • revlog: stop using '_processflags' directly
  • revlog: use the new sidedata map return in the sidedata method
  • templatefuncs: account for user's diffopts in diff() (BC)
  • ui: option to preserve the progress bar

25.5. extensions

  • eol: don't fallback to use .hgeol from tip (BC)
  • largefiles: use context manager for setting "lfstatus" on subrepos too
  • rebase: track new nodes when --keep is set
  • unshelve: abort on using --keep and --interactive together
  • unshelve: add abort on using continue and interactive together
  • unshelve: changes how date is set on interactive mode
  • unshelve: create a matcher only if required on creating unshelve ctx
  • unshelve: delete shelvedstate after a successful unshelve --continue
  • unshelve: forget unknown files after a partial unshelve
  • unshelve: handle stripping changesets on interactive mode
  • unshelve: store information about interactive mode in shelvedstate
  • unshelve: unify logic around creating an unshelve changeset

25.6. unsorted

  • automation: add a command to submit to a Try server
  • automation: support and use Debian Buster by default
  • changelog: make copies related function return None or a valid value
  • continue: added support for transplant
  • copies: remove existing copy info from the changeset on amend (BC)
  • demandimport: explicitly declare '_session' at the module level
  • discovery: replace "heads" by "changesets" in a output note (BC)
  • fastannotate: remove support for flock() locking
  • fix: warn when a fixer doesn't have a configured command
  • flagprocessors: deprecate _processflags
  • flagprocessors: have the read transform function return side data (API)
  • flagprocessors: writetransform function take side data as parameter (API)
  • flagutil: move REVIDX_KNOWN_FLAGS source of truth in flagutil (API)
  • flagutil: move addflagprocessor to the new module (API)
  • flagutil: move insertflagprocessor to the new module (API)
  • format: format commands.py, which recently regressed
  • grep: enable all-files by default (BC)
  • hg: have 'updatetotally' more thoroughly check updatecheck argument (API)
  • infinitepush: mark extension as likely to be deleted
  • narrow: don't hexify paths and double-hexify known nodes on wire (BC)
  • narrow: drop server support for widening using the getbundle command (BC)
  • notify: add option for deterministic message-id generation

  • py3: prevent comparison with None in curses histedit (issue6196)

  • python-zstandard: apply big-endian fix (issue6188)

  • remotefilelog: reduce probability of race-condition in remotefilelog tests
  • rust-dirstate-status: add call to rust-fast path for 'dirstate.status'
  • rust-dirstate-status: rust-cpython bindings for 'dirstate.status'
  • rust-dirstate-status: use fast-path even with fsmonitor and sparse extensions
  • rust-discovery: optionally don't randomize at all, for tests
  • sidedata: introduce a new requirement to protect the feature

  • split: handle partial commit of renames when doing split or record (issue5723)

  • sshserver: flush stream after command dispatch

  • test: allow different result for zstd compression (issue6188)

  • transplant: added support for --stop flag
  • uncommit: add options to update to the current user or current date
  • uncommit: add support to modify the commit message and date
  • uncommit: drop the hyphen from --current-user and --current-date
  • uncommit: enable support for adding a note
  • uncommit: make -D/--date and -U/--user mutually exclusive

25.7. Behavior Changes

  • copies: remove existing copy info from the changeset on amend (BC)
  • discovery: replace "heads" by "changesets" in a output note (BC)
  • eol: don't fallback to use .hgeol from tip (BC)
  • grep: enable all-files by default (BC)
  • narrow: don't hexify paths and double-hexify known nodes on wire (BC)
  • narrow: drop server support for widening using the getbundle command (BC)
  • templatefuncs: account for user's diffopts in diff() (BC)

25.8. Internal API Changes

  • bookmarks: remove changectx() method from bmstore (API)
  • exchange: avoid unnecessary conversion of bookmark nodes to hex (API)
  • flagprocessors: have the read transform function return side data (API)
  • flagprocessors: writetransform function take side data as parameter (API)
  • flagutil: move REVIDX_KNOWN_FLAGS source of truth in flagutil (API)
  • flagutil: move addflagprocessor to the new module (API)
  • flagutil: move insertflagprocessor to the new module (API)
  • hg: have 'updatetotally' more thoroughly check updatecheck argument (API)
  • merge: replace magic strings with NAMED_CONSTANTS (API)

26. Mercurial 5.1.2 (2019-10-02)

Regularly scheduled bug fix release.

26.1. extensions

  • phabricator: don't abort if property writing fails during amending

26.2. tests

  • test: allow different result for zstd compression (issue6188)

27. Mercurial 5.1.1 (2019-09-05)

Regularly scheduled bug fix release.

27.1. commands

  • bookmarks: actual fix for race condition deleting bookmark

27.2. core

  • exchange: abort on pushing bookmarks pointing to secret changesets (issue6159)

  • python-zstandard: apply big-endian fix (issue6188)

  • fncache: make debugrebuildfncache not fail on broken fncache

27.3. tests

  • various test runner fixes

  • fixed use of tr --delete for tr(1) portability

28. Mercurial 5.1 (2019-08-01)

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

28.1. commands

  • bookmark: also make bookmark cache depends of the changelog
  • bookmarks: actual fix for race condition deleting bookmark
  • bookmarks: actually trigger the race deleting bookmark in the test
  • bookmarks: backout the attempt to fix the delete race
  • bookmarks: keep bookmarks in .hg/store if new config set
  • bookmarks: use context manager when writing files
  • bookmarks: use correct store for "ambiguity check"
  • branch: abort if closing branch from a non-branchhead cset
  • branchcache: store the maximum tip in a variable inside for loop
  • commands: drop support for legacy ^cmd registration (API)
  • commit: add --force-close-branch flag to close a non-head changeset
  • commit: add a check if it is trying to close an already closed branch head
  • commit: add ability to print file status after each successful invocation

  • commit: allow --interactive to work again when naming a directory (issue6131)

  • commit: improve the files field of changelog for merges
  • commit: make the error message more specific while aborting branch closing
  • commit: respect --no-edit in combination with --amend
  • graft: moved abortgraft and readgraft to cmdutil

  • help: check if a subtopic exists and raise an error if it doesn't (issue6145)

  • log: add config for making 'hg log -G' always topo-sorted
  • log: flag topo-sorted set as such
  • log: pass getcopies() function instead of getrenamed() to displayer (API)

  • merge: disallow merge abort in case of an unfinished operation (issue6160)

  • patch: use a short, fixed-size message for last line of prompt (issue6158)

  • push: added clear warning message when pushing closed branches(issue6080)

  • tags: avoid double-reversing a list
  • verify: also check full manifest validity during verify runs
  • verify: introduce a notion of "level"
  • verify: introduce an experimental --full flag

28.2. core

  • docs: man page and HTML help now order commands categorically, instead of alphabetically

  • minirst: support subsubsubsubsections (header level 5) with marker ''''

  • revlog: add the option to track the expected compression upper bound
  • revlog: speed up isancestor

  • templatekw: make {file_*} compare to both merge parents (issue4292)

  • templater: drop support for old style keywords (API)
  • util: make util.dirs() and util.finddirs() include root directory (API)

28.3. extensions

  • largefiles: make last line of prompts <40 english chars (issue6158)

  • mq: fix for merge detection methods
  • rebase: fix in-memory rebasing of copy of empty file
  • rebase: tweak description of inmemory working even w/ dirty working dir
  • shelve: modify help text on --interactive
  • unshelve: add interactive mode
  • unshelve: add space to help
  • unshelve: changed Corruptedstate error msg from ui.warn to error.Abort
  • unshelve: mark unshelve interactive as experimental

28.4. unsorted

  • abort: added support for graft
  • abort: added support for histedit
  • abort: added support for merge
  • abort: added support for rebase
  • abort: added support for unshelve
  • automation: initial support for running Linux tests
  • bisect: do not crash with rewritten commits

  • blackbox: disable extremely verbose logging (issue6110)

  • catapipe: add support for COUNTER events
  • changelog: define changelogrevision.p[12]copies for null revision
  • changelog: fix handling of empty copy entries in changeset
  • changelog: optionally store added and removed files in changeset extras
  • continue: added support for rebase
  • continue: added support for unshelve

  • copies: filter invalid copies only at end of pathcopies() (issue6163)

  • copies: follow copies across merge base without source file (issue6163)

  • debugrevlog: fix average size computation for empty data (issue6167)

  • drawdag: don't crash when writing copy info to changesets
  • extdata: avoid crashing inside subprocess when we get a revset parse error
  • extensions: drop support for extsetup() without 'ui' argument (API)

  • filemerge: make last line of prompts <40 english chars (issue6158)

  • graphmod: remove support for graph lines mixing parent/grandparent styles (BC)

  • manifest: avoid corruption by dropping removed files with pure (issue5801)

  • match: remove unused match.__iter__ implementation (API)

  • match: use '' instead of '.' for root directory (API)

  • procutil: allow callers of runbgcommand to assume the process starts
  • remotefilelog: check if RFL is enabled in getrenamedfn() override
  • remotefilelog: handle copies in changesets in getrenamedfn() override
  • remotefilelog: log when we're about to fetch files
  • remotefilelog: tell runbgcommand to not block on child process startup
  • root: add support for -Tformatter option
  • sslutil: add support for SSLKEYLOGFILE to wrapsocket

  • sslutil: fsencode path returned by certifi (issue6132)

  • statecheck: added support for STATES

  • subrepos: make last line of prompts <40 english chars (issue6158)

  • tests: make the grep pattern in remotefilelog-gcrepack portable (issue6122)

  • tests: work around libressl being different about error strings (issue6122)

  • tracing: add support for emitting counters
  • worker: support parallelization of functions with return values
  • zsh: enable completion support for chg as well

28.5. Behavior Changes

  • graphmod: remove support for graph lines mixing parent/grandparent styles (BC)

28.6. Internal API Changes

  • commands: drop support for legacy ^cmd registration (API)
  • extensions: drop support for extsetup() without 'ui' argument (API)
  • log: pass getcopies() function instead of getrenamed() to displayer (API)

  • match: remove unused match.__iter__ implementation (API)

  • match: use '' instead of '.' for root directory (API)

  • templater: drop support for old style keywords (API)
  • util: make util.dirs() and util.finddirs() include root directory (API)

29. Mercurial 5.0.2

A regularly scheduled bugfix release.

29.1. commands

  • Help fixes on hg mv and hg cp

29.2. unsorted

30. Mercurial 5.0.1

A regularly scheduled bugfix release.

30.1. commands

  • bookmark: also make bookmark cache depends of the changelog

  • commit: allow --interactive to work again when naming a directory (issue6131)

30.2. unsorted

  • manifest: avoid corruption by dropping removed files with pure (issue5801)

  • sslutil: fsencode path returned by certifi (issue6132)

31. Mercurial 5.0 (2019-05-01)

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

32. Mercurial 4.9.1 (2019-03-19)

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

32.1. commands

  • record: prevent commits that don't pick up dirty subrepo changes (issue6102)

32.2. extensions

  • rebase: add missing dashes in help text

32.3. unsorted

  • subrepo: avoid false unsafe path detection on Windows

  • test-https: add some more known failure messages of client certs (issue6030)

33. 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.

33.1. 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.

33.2. commands

  • archive: use manifest.matches() to simplify and speed up matching
  • branch: allow changing branch of merge commits with --rev

  • branches: add -r option to show branch name(s) of a given rev (issue5948)

  • graft: abort if --date/user specified with --currentdate/currentuser (BC)
  • graft: introduce --base option for using custom base revision while merging
  • help: add internals.extensions topic
  • help: show advanced, experimental and deprecated extensions with --verbose

  • log: fix line wrap on diffstat with -G/--graph (issue5800)

  • merge: make local file storage in the .hg/merge directory extensible

  • pull: fix inconsistent view of bookmarks during pull (issue4700)

  • push: add --publish flag to change phase of pushed changesets
  • push: config option to control behavior when pushing to a publishing server

  • resolve: fix mark-check when a file was deleted on one side (issue6020)

  • tags: cache 'repo.changelog' access when checking tags nodes
  • update: fix edge-case with update.atomic-file and read-only files

33.3. core

  • revlog: always enable generaldelta on version 2 revlogs

  • revlog: make sure we never use sparserevlog without general delta (issue6056)

  • revset: enforce "%d" to be interpreted as literal revision number (API) (BC)
  • revset: introduce an API that avoids 'formatspec' input serialization

  • revsets: make bookmark/named('re:nonexistent') not abort (issue6018) (BC)

  • templatekw: deprecate p1rev/p2rev/p1node/p2node in favor of p1/p2

  • templatekw: fix crash on multiple latesttags resolution at wdir (issue6055)

  • templater: check invalid use of list expression properly (issue5920)

  • transaction: display data about why the transaction failed to rollback
  • ui: add config knob to redirect status messages to stderr (API)

  • ui: remove unreachable branches and function calls from write() (issue6059)

  • vfs: also audit rename
  • wireproto: in batch queries, support queries with immediate responses

33.4. extensions

  • absorb: don't prompt to apply changes when there are none to apply
  • amend: add -D/--currentdate option

  • amend: add config option to update time to current in hg amend (issue5828)

  • blackbox: add configitem for format of log timestamps
  • bookflow: new extension for bookmark-based branching
  • convert: don't drop commits that are empty in the source when using --filemap
  • extensions: deprecate extsetup without a 'ui' argument (API)
  • extensions: import the exthelper class from evolve 980565468003 (API)
  • fix: add a config to abort when a fixer tool fails
  • fix: add extra field to fixed revisions to avoid creating obsolescence cycles
  • fix: add suboption for configuring execution order of tools
  • histedit: add rewrite.update-timestamp support to fold and mess

  • histedit: add warning message on editing tagged commits (issue4017)

  • histedit: drop unused constructor arguments (API)
  • histedit: fix --continue and --abort when curses is enabled
  • histedit: import chistedit curses UI from hg-experimental
  • lfs: improve the hints for common errors in the Batch API
  • logtoprocess: drop support for ui.log() call with invalid msg arguments (BC)
  • logtoprocess: leverage procutil.shellenviron() to stringify variables (BC)
  • narrow: don't resurrect old commits when narrowing (don't strip obsmarkers)
  • narrow: drop the bundle2 capability since we have server capabilities (BC)
  • phabricator: teach {phabreview} to work without --amend
  • phabricator: warn if unable to amend, instead of aborting after posting
  • remotefilelog: fix {file_copies} template keyword
  • remotefilelog: import pruned-down remotefilelog extension from hg-experimental
  • sparse: don't enable on clone if it was a narrow clone
  • strip: compute bookmark target only if we have bookmark to move

33.5. unsorted

  • changegroup: add a option to create bundle with full snapshot only
  • changegroup: allow to force delta to be against p1
  • commandserver: add IPC channel to teach repository path on command finished
  • commandserver: add config knob for various logging options
  • commandserver: add experimental option to use separate message channel
  • commandserver: send raw progress information to message channel

  • filecache: unimplement __set__() and __delete__() (API)

  • http: allow 'auth.prefix' to have a username consistent with the URI
  • match: support rooted globs in hgignore
  • merge-tools: when calling external merge tool, describe the resolve inputs
  • mergetools: adjust Beyond Compare config on Mac/Linux

  • obsutil: fix the issue5686

  • progress: deprecate ui.progress()

  • rust-cpython: binding for AncestorsIterator

  • rust-cpython: binding for LazyAncestors

  • rust-cpython: bindings for MissingAncestors

  • sparse-revlog: disable sparse-revlog if config disable general-delta
  • sparse-revlog: enabled by default
  • storage: update sqlitestore to use the new 'deltamode' parameter

  • store: raise ProgrammingError if unable to decode a storage path

  • subrepo: extend path auditing test to include more weird patterns (SEC)
  • subrepo: prohibit variable expansion on creation of hg subrepo (SEC)
  • subrepo: reject potentially unsafe subrepo paths (BC) (SEC)

33.6. Behavior Changes

  • graft: abort if --date/user specified with --currentdate/currentuser (BC)
  • logtoprocess: drop support for ui.log() call with invalid msg arguments (BC)
  • logtoprocess: leverage procutil.shellenviron() to stringify variables (BC)
  • narrow: drop the bundle2 capability since we have server capabilities (BC)
  • revset: enforce "%d" to be interpreted as literal revision number (API) (BC)

  • revsets: make bookmark/named('re:nonexistent') not abort (issue6018) (BC)

  • subrepo: reject potentially unsafe subrepo paths (BC) (SEC)

33.7. Internal API Changes

  • extensions: deprecate extsetup without a 'ui' argument (API)
  • extensions: import the exthelper class from evolve 980565468003 (API)

  • filecache: unimplement __set__() and __delete__() (API)

  • histedit: drop unused constructor arguments (API)
  • revset: enforce "%d" to be interpreted as literal revision number (API) (BC)
  • ui: add config knob to redirect status messages to stderr (API)

34. Mercurial 4.8.2 (2019-01-07)

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

34.1. commands

  • update: do not pass in user revspec as default destination (issue6044)

34.2. core

  • match: fix assertion for fileset with no context (issue6046)

  • revlog: catch delta base value under -1
  • revlog: catch revlog corruption in index_baserev

  • server: always close http socket if responding with an error (issue6033)

  • vfs: ensure closewrapbase fh doesn't escape by entering context manager

34.3. extensions

  • phabricator: properly encode boolean types in the request body

34.4. unsorted

  • windows: ensure mixedfilemodewrapper fd doesn't escape by entering context mgr
  • worker: do not swallow exception occurred in main process

35. 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.

35.1. commands

  • commandserver: get around ETIMEDOUT raised by selectors2

  • graft: do not try to skip rev derived from ancestor more than once (issue6024)

  • verify: provide unit to ui.makeprogress()

35.2. core

  • revlog: fix out-of-bounds access by negative parents read from revlog (SEC)

35.3. extensions

  • rebase: abort in-mem rebase if there's a dirty merge state
  • rebase: fix dir/file conflict detection when using in-mem merge

  • rebase: fix path auditing to audit path relative to repo root (issue5818)

  • rebase: preserve working copy when redoing in-mem rebase on disk

35.4. unsorted

  • tests: stabilize test-inherit-mode.t on FreeBSD and macOS (issue6026)

36. Mercurial 4.8 (2018-11-02)

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

36.1. commands

  • add: add a label for messages about added files
  • addremove: add labels for messages about added and removed files
  • annotate: pass in wdir rev and node to formatter (BC)
  • annotate: rename {line_number} to {lineno} (BC)
  • bookmarks: add explicit option to list bookmarks of the given names
  • bookmarks: pass in formatter to printbookmarks() instead of opts (API)
  • clone: allow local cloning to create more than one level of directories
  • debugcommands: introduce debugrevlogindex (BC)
  • debugcommands: use openstorage() in debugdata (BC)
  • grep: add MULTIREV support to --allfiles flag
  • grep: rename {line_number} to {lineno} as well (BC)
  • grep: search all commits in allfiles mode
  • help: adding a proper declaration for shortlist/basic commands (API)
  • help: adding support for command categories
  • identify: change {parents} to a list of nodes (BC)
  • identify: show remote bookmarks in 'hg id url -Tjson -B'
  • log: have changesetformatter fill in wdir() rev and node (BC)

  • log: respect graphshorten on terminal nodes (collapsing o-~ to just o~)

  • merge: improve interactive one-changed one-deleted message (issue5550)

  • phase: explicitly exclude secret phase and above
  • phase: expose a '_phase(idx)' revset
  • phase: handle phase with no command flag
  • phase: report number of non-public changeset alongside the new range

  • push: add "remote" to 'repository changed while pushing' messages (issue5971)

  • remove: add a label for messages about removed files
  • rename: return error status if any rename/copy failed
  • resolve: add a flag for the default behavior of re-merging
  • resolve: add config to make hg resolve not re-merge by default
  • resolve: add confirm config option
  • resolve: add option to warn/abort on -m with unresolved conflict markers
  • resolve: graduate resolve.mark-check from experimental, add docs
  • resolve: rename {status} to {mergestatus} to not shadow change status (BC)
  • status: advertise --abort instead of 'update -C .' to abort a merge
  • status: advertise --abort instead of 'update -C .' to abort graft
  • status: remove "morestatus" message from formatter data (BC)
  • status: rename {copy} to {source} for compatibility with {file_copies} (BC)

  • verify: make output less confusing (issue5924)

36.2. core

  • context: drop compatibility for 'context.descendant' (API)

  • context: move logic from changectx.__init__ to localrepo.__getitem__ (API)

  • context: remove unused overlayfilectx (API)
  • dispatch: don't show list of commands on bogus command
  • dispatch: making all hg abortions be output with a specific label
  • dispatch: show a short error message when invalid global option given
  • exchange: support declaring pull depth
  • exchange: support defining narrow file patterns for pull
  • filelog: add a hasnode() method (API)
  • filelog: drop _generaldelta attribute (API)
  • filelog: drop index attribute (API)
  • filelog: remove checkhash() (API)
  • filelog: remove revdiff() (API)
  • filelog: remove version attribute (API)
  • filelog: stop proxying "opener" (API)
  • filelog: stop proxying _addrevision() (API)
  • filelog: stop proxying checksize() (API)
  • filelog: stop proxying compress() (API)
  • filelog: stop proxying datafile (API)
  • filelog: stop proxying deltaparent() (API)
  • filelog: stop proxying flags() (API)
  • filelog: stop proxying headrevs() (API)
  • filelog: stop proxying rawsize() (API)
  • filelog: stop proxying start(), end(), and length() (API)
  • localrepo: add repository feature when repo can be stream cloned
  • localrepo: add requirement when narrow files creation option present
  • localrepo: automatically load lfs extension when required (BC)
  • localrepo: define "features" on repository instances (API)
  • localrepo: define storage backend in creation options (API)

  • localrepo: move repo creation logic out of localrepository.__init__ (API)

  • localrepo: pass ui to newreporequirements() (API)
  • localrepo: support marking repos as having shallow file storage
  • localrepo: support writing shared file (API)
  • pager: do not enable when TERM=dumb
  • repository: establish API for emitting revision deltas
  • revlog: add method for obtaining storage info (API)

  • revlog: drop LookupError alias (API)

  • revlog: drop RevlogError alias (API)

  • revlog: drop compatibility for 'revlog.descendant' (API)
  • revlog: drop emitrevisiondeltas() and associated functionality (API)
  • revlog: drop some more error aliases (API)
  • revlog: new API to emit revision data

  • revlog: reuse cached delta for identical base revision (issue5975)

  • revset: expand bookmark(.) to the active bookmark
  • revsetlang: fix position of '-' in spaceless 'a-b' expressions
  • streamclone: don't support stream clone unless repo feature present
  • streamclone: include obsstore file into stream bundle if client can read it
  • templatefuncs: add truncate parameter to pad
  • templatekw: add experimental {status} keyword
  • templatekw: deprecate old-style template keyword function (API)
  • templates: rename "user" to "luser" defined in default map file (API)
  • tracing: new module to make tracing events in hg easier
  • tracing: trace command function execution
  • transaction: make entries a private attribute (API)
  • transaction: remember original len(repo) instead of tracking added revs (API)
  • util: make timedcm require the label (API)
  • wireprotov2: add bookmarks to "changesetdata" command
  • wireprotov2: add phases to "changesetdata" command
  • wireprotov2: client support for advertising redirect targets
  • wireprotov2: client support for following content redirects
  • wireprotov2: define and implement "changesetdata" command
  • wireprotov2: define and implement "filedata" command
  • wireprotov2: define and implement "filesdata" command
  • wireprotov2: define and implement "manifestdata" command
  • wireprotov2: server support for sending content redirects
  • wireprotov2: support response caching

36.3. extensions

  • absorb: import extension from Facebook's hg-experimental
  • absorb: print '{rev}:' as a prefix to the hash
  • absorb: print summary of changesets affected
  • absorb: prompt user to accept absorb changes by default
  • amend: support "history-editing-backup" config option
  • closehead: fix close-head -r listification
  • commitextras: work nicely with other extensions
  • convert: fix a file descriptor leak
  • extension: add a summary of total loading time per extension
  • extensions: add detailed loading information
  • extensions: new closehead module for closing arbitrary heads
  • fastannotate: initial import from Facebook's hg-experimental
  • fastannotate: make the default value for 'fastannotate.useflock' dynamic
  • fix: add a monkey-patchable point after all new revisions have been committed
  • fix: compute changed lines lazily to make whole-file fixer tools faster
  • fix: determine fixer tool failure by exit code instead of stderr
  • fix: pull out flag definitions to make them re-usable from extensions

  • fsmonitor: use vfs instead of opener (issue5938)

  • journal: do not pass in repolookuperror string to template (BC)
  • journal: unify template name for "nodes" (BC)
  • largefiles: automatically load largefiles extension when required (BC)
  • lfs: add repository feature denoting the use of LFS
  • lfs: autoload the extension when cloning from repo with lfs enabled

  • lfs: consult the narrow matcher when extracting pointers from ctx (issue5794)

  • lfs: don't add extension to hgrc after clone or share (BC)
  • lfs: don't add extension to hgrc after conversion (BC)
  • logtoprocess: connect all fds to /dev/null to avoid bad interaction with pager
  • logtoprocess: define $HG for children processes
  • narrow: add '--import-rules' flag to tracked command
  • narrow: add a --narrowspec flag to clone command
  • narrow: add narrow and ellipses as server capabilities
  • narrow: add server logic to send cg while widening without ellipsis
  • narrow: check for servers' narrow support before doing anything (BC)
  • narrow: drop support for remote expansion (BC)
  • narrow: introduce a config option to check if narrow is enabled or not
  • narrow: move .hg/narrowspec to .hg/store/narrowspec (BC)
  • narrow: move support for 'hg verify' into core
  • narrow: the first version of narrow_widen wireprotocol command
  • narrow: validate spec files are well-formed during clone (BC)
  • patchbomb: allow using HGHOSTNAME to force a hostname
  • phabricator: drop support for the legacy phabricator.auth.token config (BC)
  • phabricator: mark extension as experimental for now

  • rebase: add --stop option to stop rebase at any point (issue5206)

  • rebase: don't try to prune obsolete changeset already in the destination
  • rebase: explicitly track collapses as fold
  • rebase: skip extinct revisions even if it has no successor in rebase set
  • rebase: support "history-editing-backup" config option
  • remotenames: add names argument to remotenames revset
  • share: allow more than one level of directories to be created
  • shelve: add an "internal" extra
  • shelve: fix crash on unshelve without .shelve metadata file
  • shelve: use the internal phase when possible
  • sqlitestore: file storage backend using SQLite
  • strip: ignore orphaned internal changesets while computing safe strip roots

36.4. hgweb

  • hgweb: add error template to json so it won't crash
  • hgweb: map Abort to 403 error to report inaccessible path for example

  • hgweb: show shortlog by default in json output (issue5978)

  • hgweb: use scmutil.binnode() to translate None to wdir hash (issue5988)

36.5. chg

  • chgserver: add "setumask2" command which uses correct message frame
  • chgserver: restore pager fds attached within runcommand session
  • rust-chg: add Client extensions to run cHg-specific requests
  • rust-chg: add callback to handle pager and shell command requests

36.6. unsorted

  • ancestors: actually iterate over ancestors in topological order (issue5979)

  • bundle2: graduate bundle2.stream option from experimental to server section
  • changegroup: pass sorted revisions into group() (API)

  • changegroup: port to emitrevisions() (issue5976)

  • changegroup: remove reordering control (BC)

  • changegroup: restore default node ordering (issue6001)

  • cleanupnodes: drop special casing around prune markers (API)

  • commands: restore compatibility for "^cmd" registration (issue6005)

  • copies: improve logic of deciding copytracing on based of config options

  • crecord: make nextsametype() check that parent item exists (issue6009)

  • crecord: make enter move cursor down to the next item of the same type

  • delta: skip "empty delta" optimisation for non-general case (issue6006)

  • error: introduce StorageError

  • filemerge: add config knob to check capabilities of internal merge tools
  • filemerge: show warning if chosen tool has no binary files capability
  • fileset: extract language processing part to new module (API)
  • fileset: optimize 'x and not y' to 'x - y'
  • fileset: roughly adjust weights of functions
  • formatter: remove experimental marker from -T option
  • formatter: rename {abspath}/{file} to {path}, and drop relative {path} (BC)

  • global: replace most uses of RevlogError with StorageError (API)

  • hg: allow extra arguments to be passed to repo creation (API)
  • httppeer: expose capabilities for each command
  • index: drop support for negative indexes into the index
  • index: handle index[-1] as nullid more explicitly
  • linelog: fix infinite loop vulnerability
  • lookup: add option to disambiguate prefix within revset
  • mail: always fall back to iso-8859-1 if us-ascii won't work (BC)
  • mail: modernize check for Python-with-TLS
  • manifest: add rawsize() proxy (API)
  • meld: enable auto-merge
  • mergetool: warn if ui.merge points to nonexistent tool
  • narrowspec: limit patterns to path: and rootfilesin: (BC)
  • narrowspec: use sparse.parseconfig() to parse narrowspec file (BC)

  • obsolete: fix ValueError when stored note contains ':' char (issue5783)

  • overlayworkingctx: fix exception in metadata-only inmemory merges (issue5960)

  • phase: add an archived phase
  • phases: add an internal phases
  • pullreport: issue a message about "extinct" pulled changesets
  • py3: rename pycompat.getcwd() to encoding.getcwd() (API)
  • revisions: allow "x123" to refer to nodeid prefix "123"
  • scmutil: accept multiple predecessors in 'replacements' (API)
  • shortest: never emit 0-length prefix even if unique
  • shortest: use 'x' prefix to disambiguate from revnum if configured

  • sparse-revlog: only refine delta candidates in the sparse case (issue6006)

  • statprof: fix indent level of fp.write() (issue6004)

  • statprof: update the name as the i increases (issue6003)

  • storageutil: consistently raise LookupError (API)

  • storageutil: implement file identifier resolution method (BC)
  • storageutil: move metadata parsing and packing from revlog (API)
  • storageutil: new module for storage primitives (API)
  • url: allow to configure timeout on http connection

36.7. Behavior Changes

  • annotate: pass in wdir rev and node to formatter (BC)
  • annotate: rename {line_number} to {lineno} (BC)
  • changegroup: remove reordering control (BC)
  • debugcommands: introduce debugrevlogindex (BC)
  • debugcommands: use openstorage() in debugdata (BC)
  • formatter: rename {abspath}/{file} to {path}, and drop relative {path} (BC)
  • grep: rename {line_number} to {lineno} as well (BC)
  • identify: change {parents} to a list of nodes (BC)
  • journal: do not pass in repolookuperror string to template (BC)
  • journal: unify template name for "nodes" (BC)
  • largefiles: automatically load largefiles extension when required (BC)
  • lfs: don't add extension to hgrc after clone or share (BC)
  • lfs: don't add extension to hgrc after conversion (BC)
  • localrepo: automatically load lfs extension when required (BC)
  • log: have changesetformatter fill in wdir() rev and node (BC)
  • mail: always fall back to iso-8859-1 if us-ascii won't work (BC)
  • narrow: check for servers' narrow support before doing anything (BC)
  • narrow: drop support for remote expansion (BC)
  • narrow: move .hg/narrowspec to .hg/store/narrowspec (BC)
  • narrow: validate spec files are well-formed during clone (BC)
  • narrowspec: limit patterns to path: and rootfilesin: (BC)
  • narrowspec: use sparse.parseconfig() to parse narrowspec file (BC)
  • phabricator: drop support for the legacy phabricator.auth.token config (BC)
  • resolve: rename {status} to {mergestatus} to not shadow change status (BC)
  • status: remove "morestatus" message from formatter data (BC)
  • status: rename {copy} to {source} for compatibility with {file_copies} (BC)
  • storageutil: implement file identifier resolution method (BC)

36.8. Internal API Changes

  • bookmarks: pass in formatter to printbookmarks() instead of opts (API)
  • changegroup: pass sorted revisions into group() (API)
  • cleanupnodes: drop special casing around prune markers (API)
  • context: drop compatibility for 'context.descendant' (API)

  • context: move logic from changectx.__init__ to localrepo.__getitem__ (API)

  • context: remove unused overlayfilectx (API)
  • filelog: add a hasnode() method (API)
  • filelog: drop _generaldelta attribute (API)
  • filelog: drop index attribute (API)
  • filelog: remove checkhash() (API)
  • filelog: remove revdiff() (API)
  • filelog: remove version attribute (API)
  • filelog: stop proxying "opener" (API)
  • filelog: stop proxying _addrevision() (API)
  • filelog: stop proxying checksize() (API)
  • filelog: stop proxying compress() (API)
  • filelog: stop proxying datafile (API)
  • filelog: stop proxying deltaparent() (API)
  • filelog: stop proxying flags() (API)
  • filelog: stop proxying headrevs() (API)
  • filelog: stop proxying rawsize() (API)
  • filelog: stop proxying start(), end(), and length() (API)
  • fileset: extract language processing part to new module (API)

  • global: replace most uses of RevlogError with StorageError (API)

  • help: adding a proper declaration for shortlist/basic commands (API)
  • hg: allow extra arguments to be passed to repo creation (API)
  • localrepo: define "features" on repository instances (API)
  • localrepo: define storage backend in creation options (API)

  • localrepo: move repo creation logic out of localrepository.__init__ (API)

  • localrepo: pass ui to newreporequirements() (API)
  • localrepo: support writing shared file (API)
  • manifest: add rawsize() proxy (API)
  • py3: rename pycompat.getcwd() to encoding.getcwd() (API)
  • revlog: add method for obtaining storage info (API)

  • revlog: drop LookupError alias (API)

  • revlog: drop RevlogError alias (API)

  • revlog: drop compatibility for 'revlog.descendant' (API)
  • revlog: drop emitrevisiondeltas() and associated functionality (API)
  • revlog: drop some more error aliases (API)
  • scmutil: accept multiple predecessors in 'replacements' (API)

  • storageutil: consistently raise LookupError (API)

  • storageutil: move metadata parsing and packing from revlog (API)
  • storageutil: new module for storage primitives (API)
  • templatekw: deprecate old-style template keyword function (API)
  • templates: rename "user" to "luser" defined in default map file (API)
  • transaction: make entries a private attribute (API)
  • transaction: remember original len(repo) instead of tracking added revs (API)
  • util: make timedcm require the label (API)

37. Mercurial 4.7.2 (2018-10-01)

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

37.1. security

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

37.2. core

  • various minor correctness fixes in revsets for commonancestors() and similar

37.3. unsorted

  • chgserver: do not send system() back to client if stdio redirected (issue5992)

  • procutil: compare fd number to see if stdio protection is needed (issue5992)

38. Mercurial 4.7.1 (2018-09-04)

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

38.1. commands

  • merge: do not delete untracked files silently (issue5962)

38.2. core

  • revlog: fix descendant deprecated method

38.3. hgweb

  • hgweb: load revcount + 1 entries to fill nextentry in log page (issue5972)

38.4. performance

  • remotephase: avoid full changelog iteration (issue5964)

  • remotephase: fast path newheads computation in simple case (issue5964)

  • scmutil: avoid quadratic membership testing (issue5969)

  • sparse-revlog: fix delta validity computation

39. 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 2024-10-28 15:33:56 by RaphaelGomes)