Mercurial Changelog

What's new in Mercurial 6.4.2

Jun 23, 2023

Exceptional bugfix release due to a corruption bug that happens when using clonebundles on repositories with large files.
revlog-split: make sure the self._indexfile attribute is reset (issue6811)

New in Mercurial 6.4.1 (Jun 23, 2023)

New in Mercurial 6.4 (Jun 23, 2023)

New Features:
There is a new internal merge tool called internal:union-other-first.
It works like internal:union but add other side on top of local.
Pullbundles are enabled by default
delta-find: add a way to control the number of bases tested at the same time
changelog-v2: add a configuration to disable rank computation
debug: add an option to display statistic about a bundling operation
debug: add an option to display statistic about a unbundling operation
delta-find: add a delta-reuse policy that blindly accepts incoming deltas
debug: add debug-revlog-stats command
dirstate: add narrow support to verify
verify: also check dirstate
commit: add --draft option to use draft phase
amend: add a --draft option to set phase to draft
debug: add a config to abort update early
rhg: implement checkexec to support weird filesystems
debugshell: allow commands to be specified as a CLI argument
rhg-files: add support for narrow when specifying a revision
rust-narrow: enable narrow support for plain rhg files
Bug Fixes:
Aside from the following (unordered) commits which made it through a manual filter, there are a bunch of typing improvements and fixes, removal of deprecated code and general code cleanup.
lfs: improve an exception message for blob corruption detected on transfer
revlog: use the user facing filename as the display_id for filelogs
rust-status: query fs traversal metadata lazily
shelve: add Shelf.changed_files for resolving changed files in a plugin
demandimport: ensure lazyloaderex sets loader attributes (issue6725)
typing: fix a syntax error in mercurial/cext/bdiff.pyi
cffi: fix a bytes vs str issue on macOS when listing directories
changelog-v2: fix the docket struct
schemes: fix a broken check for drive letter conflicts
worker: avoid reading 1 byte at a time from the OS pipe
rust-narrow: fix loop that never loops
setup: Ensure target directory exists with building rust extension
dirstate: invalidate changes when parent-change fails
dirstate: warn about non-explicitly rolledback parent-change
dirstate: write dirstate on successful exit of changing_parents context
largefile: make sure we hold the lock when updating the second dirstate
dirstate: enforce holding the lock while doing any changes
run-tests: stop ignoring venv-installed packages
transaction: run abort callback in all cases
transaction: quietly rollback if no other changes than temporary files
debugrebuilddirstate: double check that no transaction is open
dirstate: do not write an empty dirstate just for backup
locking: take the wlock for the full hg add duration
locking: take the wlock for the full hg remove duration
locking: take the wlock for the full hg forget duration
locking: take the wlock for the full hg addremove duration
locking: grab the wlock before touching the dirstate in perfdirstatewrite
locking: hold the wlock for the full duration of the "keyword demo"
mq: properly take the wlock during the full qfold operation
dirstate: invalidate the dirstate change on transaction failure
status: fix post status writing
status: fix post status invalidation
dirstate: avoid transaction backup/restore if we do not hold the lock
rollback: explicitly skip dirstate rollback when applicable
dirstate-guard: remove the feature
dirstate: make restorebackup more robust when it is a noop
dirstate: generalize the dirstate's invalidation on transaction abort
dirstate: detect potential fishy transaction patterns while changing
mq: write the dirstate before stripping
dirstate: explicitly backup the datafile
localrepo: enforce a clean dirstate when the transaction open
localrepo: "blindly" do a dirstate backup at the end of the transaction
dirstate: remove the dedicated backup logic
rhg: fix a bug in path_encode
dirstate: invalidate on all exceptions
large-files: make sure we write newly initialized standin file early
dirstate: warn if dirty when starting an edition
dirstate: track that changes are pending in a transaction
dirstate: distinct transaction callback from largefile
automv: lock the repository before searching for renames
dirstate: only reload the dirstate when it may have changed
dirstate: cleanup the _map property cache
status: invalidate dirstate on LockError
dirstate: check that dirstate is clean at the initial context opening
dirstate: have running_status write the dirstate when holding the lock
dirstate: have running_status warn when exiting with a dirty dirstate
narrow: widden the lock context in tracking
narrow: enforce that narrow spec is written within a transaction
transaction: no longer explicitly cache phaseroots
transaction: no longer explicitly cache bookmarks
transaction: use the standard transaction mechanism to backup branch
bundlerepo: handle changegroup induced phase movement in the associated method
bundlerepo: apply phase data stored in the bundle instead of assuming draft
config-item: declare undeclared path suboption
narrow: read pending file when applicable
rust: fix building on macOS (issue6801)
run-tests: fix a crash when using the coverage options
undo-files: also remove the undo.backupfiles
undo-files: cleanup backup when cleaning undos
undo-files: clean existing files up before writing new one
undo-files: cleanup legacy files when applicable
dirstate-v2: fix an incorrect handling of readdir errors
rust: update zstd dependency
rust: upgrade rayon dependency
dirstate: fix the bug in [status] dealing with committed&ignored directories
dirstate: fix a potential traceback when in copy and rename
histedit: fix diff colors
cext: fix for PyLong refactoring in CPython 3.12
py3: fix for Python 3.12 emitting SyntaxWarning on invalid escape sequences
statprof: with Python 3.12, lineno is (more) often None
transaction: properly clean up backup file outside of .hg/store/
transaction: raise on backup restoration error
revlog: improve the robustness of the splitting process
debugdeltachain: stop summing the same chain over and over
url: don't ignore timeout for https connections
py3: fix for Python 3.12 emitting SyntaxWarning on invalid escape sequences
tests: accept a test output change in [tests/test-serve.t]
rust: fix thread cap (for real this time)
dirstate: try refreshing the changelog when parent are unknown
hooks: invalidate the repo after the hooks
Backwards Compatibility Changes:
rust: upgrade supported Rust toolchain version
rust: move all crates in the main workspace to edition 2021
hg-core: upgrade zstd dependency
hg-core: upgrade clap dependency
hg-core: upgrade all remaining dependencies
hg-cpython: upgrade dependencies
rhg: upgrade clap dependency
rhg: upgrade the remainder of the dependencies
Internal API Changes:
Many APIs around the dirstate have been made much stricter with regards to
locking and transaction handling
Some dirstate APIs have been renamed/removed
In both cases, you should get loud complaints in your tests if you do
something wrong.
Miscellaneous:
pullbundle support no longer requires setting a server-side option,
providing a .hg/pullbundles.manifest according to the syntax specified in 'hg help -e clonebundles' is enough.
debug-delta-find: add a --source option
delta-find: add debug information about reuse of cached data
delta-find: set the default candidate chunk size to 10
attr: vendor 22.1.0
configitems: add a default value for "merge-tools.xxx.regappend"
debugrevlog: display total stored information
emitrevision: if we need to compute a delta on the fly, try p1 or p2 first
emitrevision: consider ancestors revision to emit as available base
find-delta: pass the cache-delta usage policy alongside the cache-delta
delta-find: use a smarter object for snapshot caching
delta-find: use sets instead of list in the snapshot cache
delta-find: make sure we only use newer full snapshot as candidate
delta-find: use a single snapshot cache when applying a group to an object
bundleoperation: optionnaly record the remote that produced the bundle
bundle: when forcing acceptance of incoming delta also accept snapshot
bundle: emit full snapshot as is, without doing a redelta
pathutil: slightly faster path audit in the common case
merge: don't pay for pathconflicts if there are none
merge: short-circuit the _checkfs loop upon getting ENOENT
merge: disable the whole filesystem access loop if [_realfs] is false
merge: cache the fs checks made during [_checkunknownfiles]
rust: use logging_timer instead of micro_timer
rust: run cargo clippy
makefile: add cargo clippy to tests if cargo is available
heptapod-ci: add clippy to the CI
convert: use a priority queue for sorting commits, to make sorting faster
delta-find: adjust the default candidate group chunk size
delta-find: declare the "paths..*:pulled-delta-reuse-policy option

New in Mercurial 6.3.1 (Nov 20, 2022)

New in Mercurial 6.3.0 RC 0 (Oct 25, 2022)

New Features:
Bundle: introduce a --exact option
Perf-bundle: add a new command to benchmark bundle creation time
Perf-bundle: accept --rev arguments
Perf-bundle: accept --type argument
Perf-unbundle: add a perf command to time the unbundle operation
Perf: introduce a benchmark for delta-find
Contrib: add support for rhel9
Phase-shelve: Implement a 'shelve.store' experimental config
Debug-delta-find: introduce a quiet mode
Sort-revset: introduce a random variant
Phase: introduce a dedicated requirement for the archived phase
Rebase: add boolean config item rebase.store-source
Rhg: make [rhg status -v] work when it needs no extra output
Rhg: support "!" syntax for disabling extensions
Rhg: add debugrhgsparse command to help figure out bugs in rhg
Rhg: add sparse support
Rhg-status: add support for narrow clones
Templates: add filter to reverse list
Contrib: add pull_logger extension
Revset: handle wdir() in roots()
Revset: handle wdir() in sort(..., -topo)
Rhg: support tweakdefaults
Rhg: parallellize computation of [unsure_is_modified]
Default Format Change:
These changes affect newly created repositories (or new clones) done with Mercurial 6.3.
New Experimental Features:
Bug Fixes:
Shelve: demonstrate that the state is different across platforms (issue6735)
Shelve: in test for trailing whitespace, strip commit (issue6735)
Shelve: remove strip and rely on prior state (issue6735)
Tests: fix http-bad-server expected errors for python 3.10 (issue6643)
Status: let --no-copies override ui.statuscopies
Releasenotes: use re.MULTILINE mode when checking admonitions
Backwards Compatibility Changes:
Chg worker processes will now correctly load per-repository configuration
When given a both a relative --repository path and an alternate working directory via --cwd. A side-effect of this change is that these workers will now return an error if hg cannot find the current working directory, even when a different directory is specified via --cwd.
Phase: rename the requirement for internal-phase from internal-phase to use-internal-phase (see 74fb1842f8b962cf03d7cd5b841dbcf2ae065587)
Internal API Changes:
Miscellaneous:
Sslutil: use proper attribute to select python 3.7+
Typing: suppress a few pyi-errors with more recent pytype
Ci: bump pytype to 2022.03.29
Bundlespec: add documentation about existing option
Subrepo: avoid opening console window for non-native subrepos on Windows
Setup: unconditionally enable the long-paths-support option on Windows
Setup: use the full executable manifest from python.exe
Tests: work around libmagic bug in svn subrepo tests
Packagelib: use python3 by default
Improve hg bisect performance
Perf: properly process formatter option in perf::unbundle
Compare-disco: miscellaneous display improvements
Fsmonitor: better compatibility with newer Pythons
Revlog: finer computation of "issnapshot"
Rhg: don't fallback if strip or rebase are activated
Perf: make perf::bundle compatible before 61ba04693d65
Perf: make perf::bundle compatible down to 5.2
Run-tests: display the time it took to install Mercurial
Mergetools: don't let meld open all changed files on startup
Dirstate-v2: skip evaluation of hgignore regex on cached directories

New in Mercurial 6.2.2 (Oct 3, 2022)

New in Mercurial 6.2.1 (Jul 29, 2022)

New in Mercurial 6.2 (Jul 20, 2022)

New Features:
Introduce a way to auto-upgrade a repo for certain requirements (see hg help config.format)
filemerge: add support for partial conflict resolution by external tool
contrib: add a partial-merge tool for sorted lists (such as Python imports)
revlog: reorder p1 and p2 when p1 is null and p2 is not while respecting issue6528
rhg: add support for ignoring all extensions
completion: install completers to conventional locations
revert: ask user to confirm before tracking new file when interactive
Rust implementation now uses the new dirstate API
sslutil: be less strict about which ciphers are allowed when using --insecure
sslutil: support TLSV1_ALERT_PROTOCOL_VERSION reason code
absorb: make --edit-lines imply --apply-changes
diff: add help text to highlight the ability to do merge diffs
censor: make rhg fall back to python when encountering a censored node
clone: use better names for temp files
debuglock: make the command more useful in non-interactive mode
debugdeltachain: distinct between snapshot and other diffs
debugindex: rename to debugindex debug-revlog-index
Make debug-revlog-index give out more information
sparse: use the rust code even when sparse is present
Bug Fixes:
Python 3 bugfixes
Windows bugfixes
templates: make firstline filter not keep 'v', 'f' and similar
rhg: sort unsupported extensions in error message
Improve performance of all functions that extract the first line of a text
crecord: avoid duplicating lines when reverting noeol->eol change
Some config.path options are now discoverable via config
mail: don't complain about a multi-word email.method
bundlespec: do not overwrite bundlespec value with the config one
bundlespec: do not check for - in the params portion of the bundlespec
bundlespec: handle the presence of obsmarker part
sparse: start moving away from the global variable for detection of usage
rust-changelog: don't skip empty lines when iterating over changeset lines
narrow: support debugupgraderepo
bundle: quick fix to ludicrous performance penalty
followlines: don't put Unicode directly into the .js file (issue6559)
manifest: improve error message in case for tree manifest
revlog: use %d to format int instead of %lu (issue6565)
revlog: use appropriate format char for int ("i" instead of I")
worker: stop relying on garbage collection to release memoryview
worker: implement _blockingreader.readinto() (issue6444)
worker: avoid potential partial write of pickled data
Backwards Compatibility Changes:
Removed Python 2 support: this includes a lot of cleanup in our codebase, automation, testing, etc.
debugindex: rename to debugindex debug-revlog-index
Miscellaneous:
Fix typos and add missing items from documentation
dirstate-tree: optimize HashMap lookups with raw_entry_mut
Rust dependencies have been upgraded
revlog: rank computation is done by Rust when available
Improve discovery test tooling
Audit the number of queries done in discovery
Improved .hgignore of the mercurial-devel repository itself
Improve test coverage of dirstate-v2
rust-requirements: allow loading repos with bookmarksinstore requirement
Various Rust refactorings to help with revlog management
Improve debugability of Rust structs
Improve unit testing of the Rust dirstatemap
Improve robustness of the Rust dirstatemap to corruption
Improve changelog-v2 upgrade system

New in Mercurial 6.1.3 (Jun 4, 2022)

New in Mercurial 6.1.2 (May 6, 2022)

New in Mercurial 6.1.1 (Apr 9, 2022)

New in Mercurial 6.1 (Mar 2, 2022)

New Features:
Added a way of specifying required extensions that prevent Mercurial from starting if they are not found. See hg help config.extensions.
Merge conflict markers have been made clearer (see backwards compatibility below)
Improve detailed error codes
Added a hint about mangled whitespace on bad patch
Explain which order the commits are presented in chistedit
Introduce a dirstate-tracked-hint feature to help automation keep track of changes to tracked files. See hg help config.use-dirstate-tracked-hint.
Shared repositories can be upgraded if the upgrade is specific to the share. For now, this only applies to dirstate-v2 and dirstate-tracked-hint.
When using the narrow extension, non-conflicting changes to files outside of the narrow specification can now be merged.
When cloning a repository using stream-clone, the client can now control the repository format variants to use as long as the stream content does not restrict that variant.
Default Format Change:
These changes affect newly created repositories (or new clones) done with Mercurial 6.1.
The share-safe format variant is now enabled by default. It makes configuration and requirements more consistent across repository and their shares. This introduces a behavior change as shares from a repository using the new format will also use their main repository's configuration. See hg help config.format.use-share-safe for details about the feature and the available options for auto-upgrading existing shares.
New Experimental Features:
The pure Rust version of Mercurial called rhg added support for most common invocations of hg status. See hg help rust.rhg for details on how to try it out.
rhg supports narrow clones and sparse checkouts.
Bug Fixes:
Obsolete revisions are skipped while computing heads. In conjunction with the evolve extension >= 10.5.0, this leads to massive exchange (push/pull) speedups in repositories with a lot of heads and/or obsolete revisions.
Stream-clones now properly advertise all requirements needed. This can result in the stream-clone feature being disabled for some clients using < 6.0.2. A small bugfix patch for these older client is available if necessary.
The --no-check and --no-merge flags now properly overwrite the behavior from commands.update.check
rhg's fallback detection is more robust in general in the presence of more advanced configs
rhg's blackbox now supports milliseconds by default and uses the same ISO 8601 format as the Python implementation
Fix rhg crash on non-generaldelta revlogs
The lfs, largefiles and sparse extensions now correctly take the appropriate lock before writing requirements
The notify extension does not produce errors anymore if a revision is not found
Remove unnecessary and overly strict check for divergence in hg fix
Windows compatibility improvements
Miscellaneous Python 3 and typing improvements
Many other small or internal fixes
Backwards Compatibility Changes:
The use of share-safe, means shares (of new repositories) will also use their main repository's configuration see the Default Format Change section for details.
The fix to stream-clone requirements advertising means some requirements previously (wronly) omitted are now sent. This can confuse client using a Mercurial version < 6.0.2. The client would consider these requirements unsupported even if it actually know them. If you encounter this, either upgrade your client or apply the necessary patch.
The labels passed to merge tools have changed slightly. Merge tools can get labels passed to them if you include $labellocal, $labelbase, and/or $labelother in the merge-tool.<tool name>.args configuration. These labels used to have some space-padding, and truncation to fit within 72 columns. Both the padding and the truncation has been removed.
Some of the text in labels passed to merge tools has changed. For example, in conflicts while running hg histedit, the labels used to be "local", "base", and "histedit". They are now "already edited", "parent of current change", and "current change", respectively.
The computation of namedbranch heads now ignores obsolete revisions. User of the Changeset Evolution feature may see a change in location and numbers of heads of each named branches (and topic).
The remotefilelog extension now requires an appropriate excludepattern for subrepositories.
debugsparse's interface has been reworked to be more flexible. Since it's a debug command it is not actually a breaking change, but it is worth noting here.
Temporary files for merges are now all inside a hgmerge directory instead of at the root of TMPDIR. The corresponding experimental mergetempdirprefix config option has been removed.

New in Mercurial 6.0.3 (Feb 20, 2022)

New in Mercurial 6.0.2 (Feb 3, 2022)

New in Mercurial 6.0.1 (Jan 17, 2022)

New in Mercurial 6.0 (Nov 24, 2021)

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.
New Features:
debugrebuildfncache now has an option to rebuild only the index files
a new bookmarks.mode path option have been introduced to control the
bookmark update strategy during exchange with a peer. See hg help paths for details.
a new bookmarks.mirror option has been introduced. See hg help bookmarks
for details.
more commands support detailed exit codes when config ui.detailed-exit-codes is enabled
Default Format Change:
New Experimental Features:
Major feature: version 2 of the dirstate is available (the first version is as old as Mercurial itself). It allows for much faster working copy inspection (status, diff, commit, update, etc.) and richer information (symlink and exec info on Windows, etc.). The format has been frozen with room for some future evolution and the current implementations (Python, Python + C, Python + Rust or pure Rust) should be compatible with any future change or optimization that the format allows. You can get more information in the internal documentation
Added a new web.full-garbage-collection-rate to control performance. See
de2e04fe4897a554b9ef433167f11ea4feb2e09c for more information
Added a new histedit.later-commits-first option to affect the ordering of commits in chistedit to match the order in hg log -G. It will affect the text-based version before graduating from experimental.
Bug Fixes:
hg fix --working-dir now correctly works when in an uncommitted merge state
Unintentional duplicated calls to hg fix's internals were removed, making it potentially much faster
rhg cat can be called without a revision
rhg cat can be called with the . revision
rhg cat is more robust than before with regards to edge cases. Some still remain like a tag or bookmark that is ambiguous with a nodeid prefix, only nodeids (prefixed or not) are supported as of now.
rhg cat is even faster
rhg (Rust fast-path for hg) now supports the full config list syntax
rhg now parses some corner-cases for revsets correctly
Fixed an fsmonitor on Python 3 during exception handling
Lots of Windows fixes
Lots of miscellaneous other fixes
Removed a CPython-specific compatibility hack to improve support for alternative Python implementations
Added a compatibility fix for Python 3.11
Backwards Compatibility Changes:
Internal API Changes:
The following functions have been removed:
dirstate.normal
dirstate.normallookup
dirstate.otherparent
dirstate.add
dirstate.addfile
dirstate.remove
dirstate.drop
dirstate.dropfile
dirstate.__getitem__
dirstatemap.nonnormalentries
dirstatemap.nonnormalset
dirstatemap.otherparentset
dirstatemap.non_normal_or_other_parent_paths
dirstateitem.dm_nonnormal
dirstateitem.dm_otherparent
dirstateitem.merged_removed
dirstateitem.from_p2
dirstateitem.merged
dirstateitem.new_merged
dirstateitem.new_added
dirstateitem.new_from_p2
dirstateitem.new_possibly_dirty
dirstateitem.new_normal
dirstateitem.from_p2_removed
Miscellaneous:
wireprotov1peer's batchable is now a simple function and not a generator
anymore
The Rust extensions (and by extension the experimental rhg status) only use a tree-based dirstate in-memory, even when using dirstate-v1. See bf8837e3d7cec40fe649c47163a3154dda03fa16 for more details
The Rust minimum supported version is now 1.48.0 in accordance with out policy of keeping up with Debian stable
The test harness plays nicer with the NixOS sandbox
The test harness plays nicer with NetBSD
Improved rpm packaging

New in Mercurial 5.9 (Oct 12, 2021)

New in Mercurial 5.8.0 (Jun 7, 2021)

New Features:
hg purge is now a core command using --confirm by default.
The rev-branch-cache is now updated incrementally whenever changesets are added.
The new options experimental.bundlecompthreads and experimental.bundlecompthreads.<engine> can be used to instruct the compression engines for bundle operations to use multiple threads for compression. The default is single threaded operation. Currently only supported for zstd.
Default Format Change:
These changes affects newly created repositories (or new clone) done with Mercurial 5.8.
The ZSTD compression will now be used by default for new repositories when available. This compression format was introduced in Mercurial 5.0, released in May 2019.
See hg help config.format.revlog-compression for details.
Mercurial installation built with the Rust parts will now use the "persistent nodemap" feature by default. This feature was introduced in Mercurial 5.4 (May 2020). However Mercurial instalation built without the fast Rust implementation will refuse to interract with them by default. This restriction can be lifted through configuration.
See hg help config.format.use-persistent-nodemap for details
New Experimental Features:
There's a new diff.merge config option to show the changes relative to an automerge for merge changesets. This makes it easier to detect and review manual changes performed in merge changesets. It is supported by hg diff --change, hg log -p hg incoming -p, and hg outgoing -p so far.
Bug Fixes:
gracefully recover from inconsistent persistent-nodemap data from disk.
Backwards Compatibility Changes:
In normal repositories, the first parent of a changeset is not null, unless both parents are null (like the first changeset). Some legacy repositories violate this condition. The revlog code will now silentely swap the parents if this condition is tested. This can change the output of hg log when explicitly asking for first or second parent. The changesets "nodeid" are not affected.
Internal API Changes:
changelog.branchinfo is deprecated and will be removed after 5.8. It is superseded by changelogrevision.branchinfo.
Callbacks for revlog.addgroup and the changelog._nodeduplicatecallback hook now get a revision number as argument instead of a node.
revlog.addrevision returns the revision number instead of the node.
nodes.nullid and related constants are being phased out as part of the deprecation of SHA1. Repository instances and related classes provide access via nodeconstants and in some cases nullid attributes.

New in Mercurial 5.7.1 (Jun 7, 2021)

New in Mercurial 5.6.1 (Dec 12, 2020)

New in Mercurial 5.3 (Feb 4, 2020)

New Features:
Windows will process hgrc files in %PROGRAMDATA%Mercurialhgrc.d.
The Phabricator extension will read .arcconfig in the repository root to assign
the phabricator.callsign and phabricator.url properties, if availableThis file will override the settings in the global or user level config files, but is itself overridden by the config file for the repository (issue6243)
Accept explicit -r 'wdir()' when adding new bookmarks (issue6218)
hg import has a new --secret option for committing with the secret phase
New Experimental Features:
The LFS extension adds --no-lfs to the verify, so that it won't attempt to
download missing blobs as part of the process
Bug Fixes:
The indent() template function was documented to not indent empty lines,
but it still indented the first line even if it was emptyIt no longer does that
Avoid setting both parents to the same commit in some cases when evolving a merge (issue6098)
Avoid spurious warnings with hg verify --verbose when there are renames in obsolete revisions (issue6172)
Check for unfinished ops when using the experimental in-memory rebase (issue6214)
Avoid corrupting dirstate if files are modified while the editor is open for an amend (issue6233)
Ensure reviews are posted to Phabricator in topological order, regardless of the order specified on the command line (issue6241)
Backwards Compatibility Changes:
Changed bundled config file location in Windows .exe installers to hgrc.d,
from default.dConsider using the new %PROGRAMDATA%Mercurialhgrc.d directory instead of the installation directory if you need to add custom config files globally
File patterns for the fix configuration are resolved against the repository
root, instead of cwdThis allows filesets to be resolved consistently, regardless of cwd
Internal API Changes:
Matcher instances no longer have a explicitdir propertyConsider
rewriting your code to use repo.wvfs.isdir() and/or ctx.hasdir() insteadAlso, the traversedir property is now also called when only explicitdir used to be calledThat may mean that you can simply remove the use of explicitdir if you were already using traversedir
The revlog.nodemap object have been merged into the revlog.index object.
n in revlog.nodemap becomes revlog.index.has_node(n),
revlog.nodemap[n] becomes revlog.index.rev(n),
revlog.nodemap.get(n) becomes revlog.index.get_rev(n)
copies.duplicatecopies() was renamed to
copies.graftcopies()Its arguments changed from revision numbers to context objectsIt also lost its repo and skip arguments (they should no longer be needed)

New in Mercurial 5.2 (Nov 17, 2019)

Backwards Compatibility Changes:
The infinitepush extension is believed to be unused, and will be deleted at
the end of 2020 unless users contact [email protected].
'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 (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 (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
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)

New in Mercurial 5.1.2 (Oct 4, 2019)

New in Mercurial 5.1 (Aug 3, 2019)

Mercurial 5.1 (2019-08-01):
Regularly scheduled feature release. An 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 (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
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)
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
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
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)

New in Mercurial 5.0.2 (Jul 9, 2019)

New in Mercurial 5.0.1 (Jul 9, 2019)

New in Mercurial 4.9.1 (Mar 19, 2019)

New in Mercurial 4.9 (Mar 19, 2019)

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 (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
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
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
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)
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)
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)

New in Mercurial 4.8.2 (Jan 9, 2019)

New in Mercurial 4.8.1 (Dec 27, 2018)

New in Mercurial 4.8 (Nov 5, 2018)

1.1. 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)
1.2. 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
1.3. 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
1.4. 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)
1.5. 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
1.6. 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
1.7. 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)
1.8. 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)

New in Mercurial 4.8 RC0 (Oct 23, 2018)

commands:
amend: support "history-editing-backup" config option
annotate: pass around full hex node until formatting plain output
annotate: pass in wdir rev and node to formatter (BC)
annotate: rename {line_number} to {lineno} (BC)
bookmark: add an --active flag to display the active bookmark
bookmarks: add explicit option to list bookmarks of the given names
bookmarks: adjust exception type so present(bookmark(.)) works as expected
bookmarks: clarify that opts['rename'] points to an old bookmark to be renamed
bookmarks: convert opts to bytes dict early
bookmarks: parse out --inactive to action early
bookmarks: parse out implicit "add" action early
bookmarks: pass in formatter to printbookmarks() instead of opts (API)
bookmarks: refactor option checking to pick one from --delete/rename/active
bookmarks: reject --delete with --inactive which makes no sense
bookmarks: remove --active in favor of --list
branchmap: close cache file properly
branchmap: explicitly convert file into iterator
branchmap: load branchmap as an iterable
branchmap: pass changelog into branchmap functions
branchmap: strip 'n' read from cache file as before
clone: allow local cloning to create more than one level of directories
commands: adjust metavariables as appropriate
commands: pass include and exclude options to hg.clone()
commands: restore compatibility for "^cmd" registration (issue6005)
commands: support passing depth to hg.clone()
commit: add debug message regarding manifest reuse
commit: try hard to reuse p1 manifest if nothing changed
fileset: extract language processing part to new module (API)
grep: add MULTIREV support to --allfiles flag
grep: rename {line_number} to {lineno} as well (BC)
help: adding a proper declaration for shortlist/basic commands (API)
identify: change {parents} to a list of nodes (BC)
log: fill in pseudo rev and node as wdir() manifest identifiers
log: have changesetformatter fill in wdir() rev and node (BC)
log: make changesetformatter pass in changectx to formatter
log: respect graphshorten on terminal nodes (collapsing o-~ to just o~)
logtoprocess: sends the canonical command name to the subprocess
merge: do not delete untracked files silently (issue5962)
merge: improve interactive one-changed one-deleted message (issue5550)
phases: enforce internal phase support
push: add "remote" to 'repository changed while pushing' messages (issue5971)
resolve: add confirm config option
resolve: add option to warn/abort on -m with unresolved conflict markers
resolve: rename {status} to {mergestatus} to not shadow change status (BC)
resolve: support confirm config option with --unmark flag
resolve: test that we suggest a valid hg command
status: advertise --abort instead of 'update -C .' to abort a merge
status: advertise --abort instead of 'update -C .' to abort graft
status: intersect matcher with narrow matcher instead of filtering afterwards
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)
verify: start to abstract file verification
core:
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: custom filelog to be used with narrow repos
filelog: drop _generaldelta attribute (API)
filelog: drop index attribute (API)
filelog: remove checkhash() (API)
filelog: remove proxies to revlog
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)
filelog: store filename directly on revlog instance
revlog: add a callback "tracking" duplicate node addition
revlog: add a method to retrieve snapshot depth
revlog: add a method to tells whether rev is stored as a snapshot
revlog: add method for obtaining storage info (API)
revlog: add opener option to enable ellipsis flag processor
revlog: allow flag processors to be applied via store options
revlog: also detect intermediate snapshots
revlog: bound number of snapshots in a chain
revlog: catch more specific exception in shortest()
revlog: clear revision cache on hash verification failure
revlog: compute snapshot depth on delta info
revlog: define ellipsis flag processors in core
revlog: do not search for delta for empty content
revlog: don't include trailing nullrev in revlog.revs(stop=len(revlog))
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: ensure intermediate snapshot have decreasing size
revlog: explicitly initialize static variables
revlog: filter out "invalid" delta base candidates
revlog: fix pure nodemap to not access missing index entry
revlog: fix pure version of _partialmatch() to include nullid
revlog: fix size of Python nodetree object
revlog: if the module is initialized more than once, don't leak nullentry
revlog: move censor logic out of censor extension
revlog: move revision verification out of verify
revlog: new API to emit revision data
revlog: obtain the first node at the lowest layer while building pure nodemap
revlog: only consider the span of the delta section
revlog: optimize ancestors() to not check filtered revisions for each
revlog: remove micro-optimization for looking up only nullid
revlog: remove some knowledge of sentinel nullid in index
revlog: reuse cached delta for identical base revision (issue5975)
revlog: rewrite censoring logic
revlog: skip over empty revision when looking for delta base
revlog: store flag processors per revlog
revlog: update pure nodecache start lookup offset on insertion
revlog: use a symbolic constant for the deltas/text ration
revlog: use proper version comparison during verify
revlog: use specialized exception for ambiguous prefix lookup
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 exposing linknode of file revisions
wireprotov2: support response caching
extensions:
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)
largefiles: use a context manager to control the progress bar lifetime
lfs: add repository feature denoting the use of LFS
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)
narrow: add '--import-rules' flag to tracked command
narrow: add a --narrowspec flag to clone command
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: 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: add support for using the vcr library to mock interactions
phabricator: drop support for the legacy phabricator.auth.token config (BC)
rebase: add --stop option to stop rebase at any point (issue5206)
rebase: add test for in-memory merge conflicts
rebase: add test to show --stop moves bookmarks
rebase: call _dorebase() properly
rebase: consolidate check for --abort/--stop/--continue conflicts
rebase: consolidate check for --dry-run/--confirm on abort/stop/continue
rebase: cover restorestatus() by lock to prevent it from being updated
rebase: do not pass in user option to rollback in-memory merge conflict
rebase: do not set internal dryrun flag by --confirm
rebase: expand a long "one-liner"
rebase: explicitly track collapses as fold
rebase: include --stop option in documentation
rebase: raise error for options conflicting with --stop
rebase: skip extinct revisions even if it has no successor in rebase set
rebase: support "history-editing-backup" config option
rebase: turn off inmemory flag on --stop
rebase: use action variable to select things to do
shelve: add an "internal" extra
shelve: drop mention of obsshelve file
shelve: find shelvedctx from bundle even if they are already in the repo
shelve: fix crash on unshelve without .shelve metadata file
shelve: handle shelved node on unfiltered repository
shelve: look for shelved node in the repository before unbundling
shelve: no longer strip internal commit when using internal phase
shelve: rename method for data write/read
shelve: return the shelved node as part of bundle application
shelve: store shelved node in a new data file
shelve: use bundlerepo.instance() to construct a repo object
shelve: use the internal phase when possible
shelve: write metadata file on the fly if they are missing
hgweb:
hgweb: load revcount + 1 entries to fill nextentry in log page (issue5972)
hgweb: show shortlog by default in json output (issue5978)
hgweb: use scmutil.binnode() to translate None to wdir hash (issue5988)
unsorted:
ancestors: actually iterate over ancestors in topological order (issue5979)
changegroup: pass sorted revisions into group() (API)
changegroup: port to emitrevisions() (issue5976)
changegroup: remove reordering control (BC)
changelog: keep track of duplicated node in the transaction adding them
chg: upgrade client to use "setumask2" command
chgserver: add "setumask2" command which uses correct message frame
chgserver: do not send system() back to client if stdio redirected (issue5992)
chgserver: restore pager fds attached within runcommand session
cleanupnodes: drop special casing around prune markers (API)
copies: improve logic of deciding copytracing on based of config options
debugcommands: introduce debugrevlogindex (BC)
debugcommands: use openstorage() in debugdata (BC)
demandimport: instrument python 2 code with trace events
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
exchangev2: support fetching shallow files history
exchangev2: support for calling rawstorefiledata to retrieve raw files
fastannotate: address pyflakes concerns
fastannotate: make the default value for 'fastannotate.useflock' dynamic
fastannotate: pconvert paths from the server for Windows
fastannotate: process files as they arrive
fastannotate: record some TODO items from indygreg's review
fastannotate: rip out specialized support for remotefilelog
fastannotate: use repo.local()
fastannotate: use stringutil.pprint() to dump diffopts to be hashed
fastannotate: write out files from server in a predictable order
formatter: rename {abspath}/{file} to {path}, and drop relative {path} (BC)
fsmonitor: use vfs instead of opener (issue5938)
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
httppeer: log commands for version 2 peer
linelog: add a Python implementation of the linelog datastructure
linelog: fix bytes/str issue in exception raise on Python 3
linelog: fix infinite loop vulnerability
linelog: port to Python 3
linelog: update internal help text
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 shared repo creation
localrepo: support writing shared file (API)
localrepo: use boolean in opener options
localrepo: validate supported requirements in makelocalrepository()
lookup: add option to disambiguate prefix within revset
mail: always fall back to iso-8859-1 if us-ascii won't work (BC)
manifest: add rawsize() proxy (API)
obsolete: fix ValueError when stored note contains ':' char (issue5783)
overlayworkingctx: fix exception in metadata-only inmemory merges (issue5960)
phase: handle phase with no command flag
pref: support negative indexing in perfrevlogrevisions
procutil: compare fd number to see if stdio protection is needed (issue5992)
py3: rename pycompat.getcwd() to encoding.getcwd() (API)
py3: system-stringify file mode in commandserver.py
remotephase: avoid full changelog iteration (issue5964)
remotephase: fast path newheads computation in simple case (issue5964)
rename: quote hg commands in warnings
rust-chg: add callback to handle pager and shell command requests
rust-chg: add state machine to handle "runcommand" request with cHg extension
scmutil: accept multiple predecessors in 'replacements' (API)
scmutil: avoid quadratic membership testing (issue5969)
sparse-revlog: add a test checking revlog deltas for a churning file
sparse-revlog: fix delta validity computation
sparse-revlog: set max delta chain length to on thousand
sqlitestore: support for storing revisions without their parents
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: make all callables optional
storageutil: move metadata parsing and packing from revlog (API)
storageutil: new module for storage primitives (API)
streamclone: don't support stream clone unless repo feature present
streamclone: include obsstore file into stream bundle if client can read it
streamclone: new server config and some API changes for narrow stream clones
streamclone: pass narrowing related info in _walkstreamfiles()
streamclone: reimplement nested context manager
templatekw: add option to include ignored/clean/unknown files in cache
templatekw: deprecate old-style template keyword function (API)
templates: rename "user" to "luser" defined in default map file (API)
tracing: trace command function execution
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)

New in Mercurial 4.7.2 (Oct 19, 2018)

New in Mercurial 4.7.1 (Sep 5, 2018)

New in Mercurial 4.6.1 (Jun 6, 2018)

New in Mercurial 4.6 (Jun 6, 2018)

New Features:
pullbundles:
Pullbundles allow the server to answer client requests using pre-built bundles. This is different from the existing clonebundle feature:
pullbundles can be used for both the initial clone and later pull operations
pullbundles can be used incrementally, i.e. to cover the changes up to the start of the current month as one bundle and the remaining changes as second bundle
the bundle is transferred inline as part of the existing connection without a secondary server
Pullbundles are only used for clients running Mercurial 4.6 as well.
push:
If 'server.streamunbundle' option is enabled, the server will directly apply the changes send by the changes. This avoids potentially large temporary files on the server side. It can also prevent concurrent pushes.
notify extension:
The 'maxdiffstat' option can be used to truncate long file lists similar to 'maxdiff' for the patch part of the email.
hgweb:
hgweb now shows date and user for operations that resulted in obsolete commit(s). For unstable commits, it shows the exact reason why they are considered unstable.
Server: header is now configurable using web.server-header option.
templates:
A new template keyword 'reporoot' which shows the root directory of the current repository. A new template function 'mailmap' which maps author fields based on values in a .mailmap file.
Other notable features:
revset: parse error now shows a hint where the error occurred
templates: parse error now shows a hint where the error occured
forget: new '--dry-run' and '--interactive' flags
copyfile: preserve stat info (mtime, etc.) when doing copies/renames
bundle2 format is documented and can be found using 'hg help internals.bundle2'
Backwards Compatibility Changes:
Support for connecting to Mercurial servers older than 0.9.1 has been removed.
Working-directory commands now respect "-X PATTERN" no matter if PATTERN matches explicitly-specified FILEs. For example, "hg add foo -X foo" no longer add the file "foo".
Support for the experimental manifestv2 format has been removed, as it was never completed and failed to meet expectations.
in output filename passed to archive/cat/export is taken as a start of a template expression.
The HTTP wire protocol server no longer accepts the "cmd" argument to control which command to run via HTTP POST bodies. The "cmd" argument must be specified on the URL query string.
Hgweb no longer reads form data in POST requests from multipart/form-data and application/x-www-form-urlencoded requests. Arguments should be specified as URL path components or in the query string in the URL instead.
Query string shorts in hgweb like "?cs=@" have been removed. Use URLs of the form "/:cmd" instead.
The HTTP client no longer accepts text/plain and application/hg-changegroup Content-Type values as a valid Mercurial command response. These should only be encountered on pre 1.0 Mercurial servers.
Performance Improvements:
hg manifest --all' is likely slower due to changing its implementation to respect storage interface boundaries. If you are impacted by this regression in a meaningful way, please make noise on the development mailing list and it can be dealt with
hg diff' is much faster for larger repositories. 40% improvements have been reported. Other operations using diffs like hgweb also benefit
Bug Fixes:
grep: fixes erroneous output of grep in forward order (issue3885)
dirstate: drop explicit files that shouldn't match (BC) (issue4679)
procutil: rewrite popen() as a subprocess.Popen wrapper (issue4746) (API)
bookmarks: test for exchanging long bookmark names (issue5165)
templater: drop symbols which should be overridden by new 'ctx' (issue5612)
clone: updates the help text for hg clone -{r,b} (issue5654)
bundle: updates the help text for hg bundle (issue5744)
histedit: make histedit's commands accept revsets (issue5746)
releasenotes: replace abort with warning while parsing (issue5775)
context: skip path conflicts by default when clearing unknown file (issue5776)
templatekw: switch most of showlist template keywords to new API (issue5779)
rebase: do not consider extincts for divergence detection (issue5782)
revert: use an exact matcher in interactive diff selection (issue5789)
subrepo: don't attempt to share remote sources (issue5793)
lfs: respect narrowmatcher when testing to add 'lfs' requirement (issue5794)
showconfig: allow multiple section.name selectors (issue5797)
annotate: do not poorly split lines at CR (issue5798)
convert: avoid closing ui.fout in subversion code (issue5807)
setdiscovery: back out changeset 5cfdf6137af8 (issue5809)
fsmonitor: layer on another hack in bser.c for os.stat() compat (issue5811)
notify: access the initial revision on an unfiltered repository (issue5821)
rebase: fix issue 5494 also with --collapse
date: fixed a bug in parsing months like 'Feb 2018', 'Apr 2018'
diffhelper: rename module to avoid conflicts with ancient C module (issue5846)
infinitepush: ensure fileindex bookmarks use '/' separators (issue5840)
import: fix crash on --exact check of empty commit (issue5702)
hgweb: reuse body file object when hgwebdir calls hgweb (issue5851)
debugcolor: fix crash by empty styles (issue5856)
hgweb: discard Content-Type header for 304 responses (issue5844)
hgweb: allow Content-Security-Policy header on 304 responses (issue5844)
paper: don't register click handlers with inline javascript (issue5812)
httppeer: detect redirect to URL without query string (issue5860)
filelog: don't crash on invalid copy metadata (issue5748)
New experimental features:
Each release there are lot of new features added which are hidden under the EXPERIMENTAL tag as the behavior may change in future or the feature is not complete yet. The experimental features added in this cycle are
narrow extension:
Allows to create clones which fetch history data for only a subset of files. This experimental extension is now distributed with Mercurial.
remotenames extension:
Shows remotebookmarks and remotebranches in the UI. This experimental extension is now distributed with Mercurial.
infinitepush extension:
Allows to store some pushes in a remote blob store on the server and to serve commits from remote blob store. The revisions are stored on disk or in everstore, the metadata are stored in sql or on disk. This experimental extension is now distributed with Mercurial.
fix extension:
Allows to rewrite file content in changesets or working copy. For example, automatically applying formatting fixes to modified lines of code. This experimental extension is now distributed with Mercurial.
lfs extension:
An alternative to the largefiles extension, which uses the git-lfs protocol. This experimental extension is now distributed with Mercurial.
API Changes:
Content from mercurial.hgweb.protocol has been moved to mercurial.wireprotoserver.
Content from mercurial.sshserver has been moved into mercurial.wireprotoserver.
sshserver no longers looks for wire protocol command handlers in methods named do_<command>. Use @wireproto.wireprotocommand to declare wire protocol command handler functions.
Log-related utility functions has been renamed as follows:
cmdutil.loglimit -> logcmdutil.getlimit
cmdutil.diffordiffstat -> logcmdutil.diffordiffstat
cmdutil._changesetlabels -> logcmdutil.changesetlabels
cmdutil.changeset_printer -> logcmdutil.changesetprinter - cmdutil.jsonchangeset = logcmdutil.jsonchangeset
cmdutil.changeset_templater -> logcmdutil.changesettemplater
cmdutil.logtemplatespec -> logcmdutil.templatespec
cmdutil.makelogtemplater -> logcmdutil.maketemplater
cmdutil.show_changeset -> logcmdutil.changesetdisplayer
cmdutil.getlogrevs -> logcmdutil.getrevs
cmdutil.getloglinerangerevs -> logcmdutil.getlinerangerevs
cmdutil.displaygraph -> logcmdutil.displaygraph
cmdutil.graphlog -> logcmdutil.graphlog
cmdutil.checkunsupportedgraphflags -> logcmdutil.checkunsupportedgraphflags
cmdutil.graphrevs -> logcmdutil.graphrevs
cmdutil._makenofollowlogfilematcher -> logcmdutil._makenofollowfilematcher
The following deprecated methods have been removed from context, with replacements:
unstable() -> orphan()
bumped() -> phasedivergent()
divergent() -> contentdivergent()
troubled() -> isunstable()
troubles() -> instabilities()
The following deprecated methods have been removed from obsolete, with replacements:
addprecursors() -> _addpredecessors()
obsstore.precursors -> obsstore.predecessors
allprecursors() -> obsutil.allprecursors()
allsuccessors() -> obsutil.allsuccessors()
marker() -> obsutil.marker
getmarkers() -> obsutil.getmarkers()
exclusivemarkers() -> obsutil.exclusivemarkers()
foreground() -> obsutil.foreground()
successorssets() -> obsutil.successorsset()
unstable() -> orphan()
bumped() -> phasedivergent()
divergent() -> contentdivergent()
The following deprecated methods have been removed from obsutil: marker.precnode() and allprecursors(). Use marker.prednode() and allpredecessors() instead.
beginparentchange() and endparentchange() have been replaced by the parentchange context manager.
The deprecated localrepo.walk() has been removed, and replaced by repo[node].walk().
The following deprecated methods have been removed from bookmarks: __setitem__(), __delitem__(), update(), and recordchange(). Use bookmarks.applychanges() instead.
The cmdutil._revertprefetch() hook point for prefetching stored files has been replaced by the command agnostic cmdutil._prefetchfiles(). The new function takes a list of files, instead of a list of lists of files.
sshpeer.sshpeer.__init__ now receives arguments describing an existing connection instead of creating a connection itself.
sshpeer.sshpeer renamed to sshpeer.sshv1peer.
wireproto.pushres and wireproto.pusherr now explicitly track stdio output.
redirect() and restore() have been removed from the wire protocol handler interface. Use mayberedirectstdio() instead.
The _client() method of the wire protocol handler interface has been renamed to client().
Wire protocol command handlers now return a wireprototypes.bytesresponse instead of a raw bytes instance. Protocol handlers will continue handling bytes instances. However, any extensions wrapping wire protocol commands will need to handle the new type.
SSH protocol handler now advertises its name internally as "ssh-v1" instead of "ssh."
File prefetching is now handled by registering a callback with scmutil.fileprefetchhooks.
HTTP protocol handlers now advertises its internal name as "http-v1" instead of "http".
context.basectx no longer implements __int__. Context instances will no longer cast to ints. Consumers should call ctx.rev() instead.
templatekw.showdict() and showlist() are deprecated in favor of new (context, mapping) API. Switch the keyword function to new API and use templatekw.compatdict() and compatlist() instead.
hgweb_mod.perms and wireproto.permissions have been removed. Wire protocol commands should declare their required permissions in the @wireprotocommand decorator.
The WSGI request object no longer exposes a form attribute containing parsed query string data. Use the qsparams attribute instead.
hgweb.hgweb_mod.permhooks no longer take a wsgirequest instance as an argument.
hgweb @webcommand functions must use the new response object passed in via "web.res" to initiate sending of a response. The hgweb WSGI application will no longer start sending the response automatically.
Various helper functions in hgweb.webutil no longer accept a templater instance. Access the templater through the "web" argument instead.
Various functions in hgweb.webutil now take a modern request object instead of "wsgirequest".
webcommand functions now only receive a single argument. The request and templater instances can be accessed via the "req" and "templater" attributes of the first argument. Note that the request object is different from previous Mercurial releases and consumers of the previous "req" 2nd argument will need updating to use the new API.
The old "wsgirequest" class for handling everything WSGI in hgweb has been replaced by separate request and response types. Various high-level functions in the hgweb WSGI applications now receive these new types as arguments instead of the old "wsgirequest" type.
The render(mapping) method of the templater has been renamed to renderdefault(mapping).
httppeer.httppeer.__init__ now takes additional arguments. Instances should be obtained by calling httppeer.instance() or httppeer.makepeer() instead.
The templater is no longer callable. Use templater.generate(t, mapping) instead of templater(t, **pycompat.strkwargs(mapping)).
templatekw._showlist() is deprecated in favor of templateutil._showcompatlist(), which takes context in place of templ.
Several generic string helper functions have been moved to utils.stringutil module.
The util.Abort alias has been removed. Use error.Abort.
merge.update() and merge.applyupdates() now return a class with named attributes instead of a tuple. Switch consumers to access elements by name instead of by offset.
Utility functions related to process/executable management have been moved to utils.procutil module.
localrepo.localrepository.featuresetupfuncs has been renamed to localrepo.featuresetupfuncs.
localrepo.localrepository.filterpats was renamed to localrepo.localrepository._filterpats.
Template filters should declare input data type and/or catch AttributeError, ValueError, TypeError, etc. as needed. See the doc of "registrar.templatefilters" for details.
"wireproto" module no longer re-exports various types used to define responses to wire protocol commands. Access these types from the "wireprototypes" module.
filelog.parsemeta() and filelog.packmeta() have been moved to the revlog module.
procutil.popen() no longer supports text mode I/O.
hook.hook() and hook.runhooks() may return a negative integer to denote that the process was killed by signal.
filelog.filelog is now a standalone class and doesn't inherit from revlog. Instead, it wraps a revlog instance at self._revlog. This change was made in an attempt to formalize storage APIs and prevent revlog implementation details leaking through to callers.
The fp argument is removed from cmdutil.export(). Use cmdutil.exportfile() instead.
cmdutil.export() takes a formatter as an argument.
patch.extract() is now a context manager. Callers no longer have to worry about deleting the temporary file it creates, as the file is tied to the lifetime of the context manager.
The wire protocol peer's iterbatch() for bulk executing commands has been removed. Use peer.commandexecutor() instead.

New in Mercurial 4.5.3 (Apr 5, 2018)

New in Mercurial 4.5.2 (Mar 7, 2018)

SECURITY FIXES:
All versions of Mercurial prior to 4.5.2 have vulnerabilities in the HTTP server that allow permissions bypass to: perform writes on repositories that should be read-only and perform reads on repositories that shouldn't allow read access
The nature of the vulnerabilities is:
Wire protocol commands that didn't explicitly declare their permissions had no permissions checking done. The web.{allow-pull, allow-push, deny_read, etc} config options governing access control were never consulted when running these commands. This allowed permissions bypass for impacted commands.
The batch wire protocol command did not list its permission requirements nor did it enforce permissions on individual sub-commands.
Mercurial 4.5.2 fixes these vulnerabilities by:
Performing permissions checking on all wire protocol commands, not just commands that list their permissions.
Checking permissions on sub-commands issued to the batch command.
BACKWARDS COMPATIBILITY CHANGES:
The "batch" wire protocol command now enforces permissions of each invoked sub-command. Wire protocol commands must define their operation type or the "batch" command will assume they can write data and will prevent their execution on HTTP servers unless the HTTP request method is POST, the server is configured to allow pushes, and the (possibly authenticated) HTTP user is authorized to perform a push.
Wire protocol commands not defining their operation type in "wireproto.PERMISSIONS" are now assumed to be used for "push" operations and access control to run those commands is now enforced accordingly.
BUG FIXES:
fileset: don't abort when running copied() on a revision with a removed file
date: fix parsing months
setup: only allow Python 3 from a source checkout (issue5804)
annotate: do not poorly split lines at CR (issue5798)
subrepo: don't attempt to share remote sources (issue5793)
subrepo: activate clone pooling to enable sharing with remote URLs
changegroup: do not delta lfs revisions
revlog: do not use delta for lfs revisions
revlog: resolve lfs rawtext to vanilla rawtext before applying delta

New in Mercurial 4.5 RC (Jan 23, 2018)

NEW FEATURES:
revert --interactive:
The revert command now accepts the flag --interactive to allow reverting only some of the changes to the specified files.
Accessing hidden changesets:
Set config option 'experimental.directaccess = True' to access hidden changesets from read only commands.
githelp extension:
The githelp extension provides the hg githelp command. This command attempts to convert a git command to its Mercurial equivalent. The extension can be useful to Git users new to Mercurial.
Largefiles changes:
largefiles: add a 'debuglfput' command to put largefile into the store
largefiles: add support for 'largefiles://' url scheme
largefiles: allow to run 'debugupgraderepo' on repo with largefiles
largefiles: convert EOL of hgrc before appending to bytes IO
largefiles: explicitly set the source and sink types to 'hg' for lfconvert
largefiles: modernize how capabilities are added to the wire protocol
HGWEB CHANGES:
hgweb now shows more information about commits: phase (if it's not public), obsolescence status (with a short explanation and links to the successors) and instabilities (e.g. orphan, phase-divergent or content-divergent).
Client-side graph code has been simplified by delegating more work to the backend, so /graph page is now more in sync with /log page, visually and feature-wise. Unfortunately, this code change means that 3rd-party themes for 4.5+ are required to have graphentry.tmpl template available (copy it from the base theme if you don't use %include and then reference it in map file) and render entries in graph.tmpl -- look at one of the core themes to see what it needs to look like. JS functions that create graph vertices and edges are now available in Graph.prototype, making it possible to call the original functions from custom theme-specific functions if needed.
Graph now shows different symbols for normal, branch-closing, obsolete and unstable commits, and marks currently checked out commit with a circle around its graph node.
There's also now json-graph API endpoint that can be used for rendering commit graph in 3rd-party applications.
Other Changes:
When interactive revert is run against a revision other than the working directory parent, the diff shown is the diff to <em>apply</em> to the working directory, rather than the diff to <em>discard</em> from the working copy. This is in line with related user experiences with 'git' and appears to be less confusing with 'ui.interface=curses'.
Let 'hg rebase' avoid content-divergence by skipping obsolete changesets (and their descendants) when they are present in the rebase set along with one of their successors but none of their successors is in destination.
A new experimental config flag, 'rebase.experimental.inmemory', makes rebase perform an in-memory merge instead of doing it on-disk in the working copy.
The HGPLAINEXCEPT environment variable can now include color to allow automatic output colorization in otherwise automated environments.
A new unamend command in uncommit extension which undoes the effect of the amend command by creating a new changeset which was there before amend and moving the changes that were amended to the working directory.
A '--abort' flag to merge command to abort the ongoing merge.
An experimental flag '--rev' to 'hg branch' which can be used to change branch of changesets.
bundle2 read I/O significantly improved
bundle2 memory use significantly reduced during read
clonebundle: it is now possible to serve the clonebundle using a git-lfs compatible server.
templatefilters: add slashpath() to convert path separator to slash (issue5572)
A new experimental config flag, 'inline-color-diff', adds within-line color diff capacity
histedit: add support to output nodechanges using formatter to help with editor integrations
BACKWARDS COMPATIBILITY CHANGES:
log --follow-first -rREV, which is deprecated, now follows the first parent of merge revisions from the specified REV just like log --follow -rREV.
log --follow -rREV FILE.. now follows file history across copies and renames.
transaction: register summary callbacks only at start of transaction
hgweb's graph view no longer supports browsers that lack <canvas> support
hgweb: only include graph-related data in jsdata variable on /graph pages
graphlog: add another graph node type, unstable, using character *
remove: print message for each file in verbose mode only while using '-A'
BUG FIXES:
Bookmark, whose name is longer than 255, can again be exchanged again between 4.4+ client and servers (issue5165)
The convert extension works with bzr < 2.6.0 again (issue5733)
Mercurial will now attempt to use hardlinks on NTFS on Windows (issue4580)
The revset x^:: is now correctly parsed as (x^):: instead of being an error (issue5764)
Setting the diff.noprefix configuration option no longer breaks the --stat flag on hg diff (issue5759)
hg outgoing now honors :pushurl paths from hgrc (issue5365)
log: translate column labels at once (issue5750)
patch: improve heuristics to not take the word diff as header (issue1879)
templater: look up symbols/resources as if they were separated (issue5699)
http and ssh: support for emitting extra debug logs about requests as they happen
API CHANGES:
bundlerepo.bundlerepository.bundle and bundlerepo.bundlerepository.bundlefile are now prefixed with an underscore.
Rename bundlerepo.bundlerepository.bundlefilespos to _cgfilespos.
dirstate no longer provides a 'dirs()' method. To test for the existence of a directory in the dirstate, use 'dirstate.hasdir(dirname)'.
mapping does not contain all template resources. use context.resource() in template functions.
text=False|True option is dropped from the vfs interface because of Python 3 compatibility issue. Use util.tonativeeol/fromnativeeol() to convert EOL manually.
wireproto.streamres.__init__ no longer accepts a reader argument. Use the gen argument instead.
exchange.getbundlechunks() now returns a 2-tuple instead of just an iterator.
bundle2 parts are no longer seekable by default
memfilectx: the changectx argument is now mandatory in constructor

New in Mercurial 4.4.2 (Dec 1, 2017)

New in Mercurial 4.4.1 (Nov 8, 2017)

New in Mercurial 4.4 (Nov 6, 2017)

NOTABLE CHANGES:
Control whitespace settings for annotation on hgweb:
annotate URLs on hgweb now accept query string arguments to influence how whitespace changes impact results.
The arguments "ignorews," "ignorewsamount," "ignorewseol," and "ignoreblanklines" now have the same meaning as their [annotate] config section counterparts. Any provided setting overrides the server default.
HTML checkboxes have been added to the paper and gitweb themes to expose current whitespace settings and to easily modify the current view.
Fast, heuristic copy-tracing:
A new fast heuristic algorithm for copytracing which assumes that the files moves are either
renames in the same directory
moves in other directories with same names
You can use this algorithm by setting 'experimental.copytrace=heuristics'. This setting performs full copytracing if both source and destination branches contains non-public changesets only
Other changes:
Estimated time is more accurate with non-linear progress
"hg status -v" can now show unfinished state.
Added '--ignore-space-at-eol' diff option to ignore whitespace differences at line endings.
show: use consistent node length in views
show: decrease minimum displayed hash length from 5 to 4
A new uncommit extension which provides 'hg uncommit' using which one can uncommit part or all of the changeset. This command undoes the effect of a local commit, returning the affected files to their uncommitted state.
hg clone --uncompressed' uses clone bundles when possible
hg annotate --skip' now prints a '*' on lines with skipped revisions
New 'commands.update.check' feature to adjust constraints on when 'hg update' will allow updates with a dirty working copy.
Add an experimental -L/--line-range FILE,FROMLINE:TOLINE option to 'hg log' command to follow the history of files by line range. In combination with -p/--patch option, only diff hunks within specified line range will be displayed. Feedback, especially on UX aspects, is welcome.
Print warning when fsmonitor isn't being used on a large repository
BACKWARDS COMPATIBILITY CHANGES:
The config option for copytrace 'experimental.disablecopytrace' is now replaced with 'experimental.copytrace' which defaults to 'on'. If you need to turn off copytracing, add '[experimental] copytrace = off' to your config.
'hg clone --stream' should now be used instead of --uncompressed. --uncompressed is marked as deprecated and is an alias for --stream. There is no schedule for elimination of --uncompressed.
The 'experimental.updatecheck' name for the new 'commands.update.check' feature is now deprecated, and will be removed after this release.
Mercurial subrepositories are now shared instead of cloned when the parent repository is shared. This prevents dangling subrepository references in the share source. Previously shared repositories with cloned subrepositories will continue to function unchanged.
Push no longer triggers a pushkey hook when updating phases. Use the new 'txnclose-phase' and 'txnclose-phase' hooks instead. (Applies when both server and client use version 4.4 or above).
BUG FIXES:
Core rebase algorithm has been rewritten to be more robust (issue5578, issue5630)
Creating a share of a repository with a Mercurial subrepository will now share the subrepository (issue5675)
PERFORMANCE IMPROVEMENTS:
improved performance when many aliases are defined
API CHANGES:
remove peer.batch(). Replace with peer.iterbatch().
OTHER CHANGES:
@peer.batchable can no longer emit local values
@peer.batchable functions must now yield exactly 2 values
Rename attributes on sshpeer to reflect peer API
peer.peerrepository has been removed. Use repository.peer abstract base class to represent a peer repository.
revset.stringset() now takes 'order' as the last argument.

New in Mercurial 4.3.3 (Oct 2, 2017)

New in Mercurial 4.3.2 (Sep 19, 2017)

New in Mercurial 4.3.1 (Aug 14, 2017)

New in Mercurial 4.2.2 (Jul 6, 2017)

New in Mercurial 4.2.1 (Jun 6, 2017)

New in Mercurial 4.2 RC (May 3, 2017)

Notable changes:
Pager support has been moved into core and is now enabled by default. This is now controlled with the ui.paginate setting.
Note that in 4.2-rc, the ui.paginate option was named pager.enable. The old name has been dropped in the final release. If you had turned pagination off using pager.enable=False, please update your config.
Color support has also been moved into core and is now enabled by default (the ui.color setting now defaults to 'auto').
The new experimental 'show' extension provides a way to view various information about your repository in an ergonomic way. It is deliberately designed for human consumption and not for scripting, so it doesn't carry the same backward compatibility guarantees as other commands. See 'hg help -e show' for more information.
commands:
Pager support has been added to the 'branches', 'files', 'status', 'summary', and 'tags' commands, as well as the '--patch', '--list', and '--stat' options of hg shelve.
bisect: set a blockedtag when running the check command
bookmarks: check HG_PENDING strictly
branches: populate all template keywords in formatter
commandserver: handle backlog before exiting
commandserver: prevent unlinking socket twice
commit: optionally strip quotes from commit template (BC)
diff: add --binary option for git mode diffs
help: add pointer how to narrow list of resolved/unresolved files (issue5469)
pager: advertise the config option in the default hgrc
pager: avoid shell=True on subprocess.Popen for better errors (issue5491)
pager: don't terminate with extreme prejudice on SIGPIPE (BC)
pager: exit cleanly on SIGPIPE (BC)
pager: improve support for various flavors of 'more' on Windows
pager: use less as a fallback on Unix
pull: abort pull --update if config requires destination (issue5528)
serve: add support for Mercurial subrepositories
status: handle more node indicators in buildstatus
status: support commands.status.relative config
update: accept --merge to allow merging across topo branches (issue5125)
verify: fix length check
core:
bundle2: ignore errors seeking a bundle after an exception (issue4784)
checkheads: upgrade the obsolescence postprocessing logic (issue4354)
color: insert color code after every "e[0m" (issue5413)
color: sync text attributes and buffered text output on Windows (issue5508)
config: use "churn" as an example extension
config: drop pager from the recommended extension
context: optimize linkrev adjustment in blockancestors() (issue5538)
crecord: avoid setting non-existing SIGTSTP signal on windows (issue5512)
debian: configure editor and pager to sensible-editor and sensible-pager by default
dispatch: ignore further SIGPIPE while handling KeyboardInterrupt
dispatch: protect against malicious 'hg serve --stdio' invocations (SEC)
dispatch: start profiling earlier
filemerge: optionally strip quotes from merge marker template (BC)
formatter: add support for changeset templating
formatter: support json formatting of long type
graphlog: draw multiple edges towards null node (issue5440)
graphlog: optionally strip quotes from graphnode template (BC)
localrepo: deprecate 'repo.join' in favor of 'repo.vfs.join'
localrepo: deprecate 'repo.opener' (API)
localrepo: deprecate 'wfile'
localrepo: deprecated 'repo.wopener' (API)
match: adding support for matching files inside a directory
packaging: add make target for linux wheels
patch: make diff in git mode respect --text option (issue5510)
plain: ignore [commands] config
profiling: add statprof support for Chrome trace viewer rendering
progress: retry ferr.flush() and .write() on EINTR (issue5532)
py3: stop exporting urlparse from pycompat and util (API)
rcutil: let environ override system configs (BC)
rcutil: let rccomponents return different types of configs (API)
rcutil: move scmutil.*rcpath to rcutil (API)
rcutil: rename rcpath to rccomponents (API)
rcutil: split osrcpath to return default.d paths (API)
record: update help message to use operation instead of "record" (issue5432)
revlog: avoid applying delta chain on cache hit
revset: split language services to revsetlang module (API)
revset: stop supporting plain list as input set (API)
revset: stop supporting predicate that returns plain list (API)
setup: use setuptools on Windows (issue5400)
smartset: move set classes and related functions from revset module (API)
sshpeer: try harder to snag stderr when stdout closes unexpectedly
templatefilter: add support for 'long' to json()
templatekw: have showlist() take mapping dict with no **kwargs expansion (API)
templatekw: make join() escape values of extras (BC) (issue5504)
templater: make pad() strip color codes before computing width (issue5416)
test-profile: allow negative time in JSON output (issue5542)
track-tags: write all tag changes to a file
util: always force line buffered stdout when stdout is a tty (BC)
vfs: extract 'vfs' class and related code to a new 'vfs' module (API)
extensions:
histedit: log the time taken to read in the commands list
histedit: make check for unresolved conflicts explicit (issue5545)
histedit: modify rollup to discard date from the rollup commit (issue4820)
histedit: use safecleanupnode in _aborthistedit (issue5500)
largefiles: add copytostore() fstandin argument to replace readstandin() (API)
largefiles: add lfile argument to updatestandin() for efficiency (API)
largefiles: make copytostore() accept only changectx as the 2nd argument (API)
largefiles: omit updating newly added standin at linear merging
largefiles: remove unused keyword argument of copytostore() (API)
largefiles: replace hashrepofile by hashfile (API)
largefiles: set the extension as enabled locally after a share requiring it
patchbomb: add config knob to generate flags by template (issue5354)
patchbomb: drop internal option for pbranch extension (API)
patchbomb: use modern pager to display -n/--test result (BC)
rebase: abort hg pull --rebase if rebase.requiredest is set (issue5514)
rebase: abort if *any* commit in rebase set is public
rebase: add flag to require destination
rebase: allow aborting if last-message.txt is missing
rebase: allow destination-free continue and abort (issue5513)
rebase: allow rebasing children of wd to wd if a new branch has been set (BC)
rebase: unhide original working directory node as well (issue5219)
shelve: add -n/--name option to unshelve (issue5475)
shelve: add logic to preserve active bookmarks
show: new extension for displaying various repository data
hgweb:
hgweb: add a "patch" query parameter to filelog command
hgweb: do not show "descending" link in followlines UI for filelog heads
hgweb: handle a "descend" query parameter in filelog command
hgweb: handle a "linerange" request parameter in filelog command
hgwebdir: add support for explicit index files
Behavior changes:
commit: optionally strip quotes from commit template (BC)
filemerge: optionally strip quotes from merge marker template (BC)
graphlog: optionally strip quotes from graphnode template (BC)
pager: don't terminate with extreme prejudice on SIGPIPE (BC)
pager: exit cleanly on SIGPIPE (BC)
patchbomb: use modern pager to display -n/--test result (BC)
rcutil: let environ override system configs (BC)
rebase: allow rebasing children of wd to wd if a new branch has been set (BC)
templatekw: make join() escape values of extras (BC) (issue5504)
util: always force line buffered stdout when stdout is a tty (BC)
1.7. Internal API changes
largefiles: add copytostore() fstandin argument to replace readstandin() (API)
largefiles: add lfile argument to updatestandin() for efficiency (API)
largefiles: make copytostore() accept only changectx as the 2nd argument (API)
largefiles: remove unused keyword argument of copytostore() (API)
largefiles: replace hashrepofile by hashfile (API)
localrepo: deprecate 'repo.opener' (API)
localrepo: deprecated 'repo.wopener' (API)
patchbomb: drop internal option for pbranch extension (API)
py3: stop exporting urlparse from pycompat and util (API)
rcutil: let rccomponents return different types of configs (API)
rcutil: move scmutil.*rcpath to rcutil (API)
rcutil: rename rcpath to rccomponents (API)
rcutil: split osrcpath to return default.d paths (API)
revset: split language services to revsetlang module (API)
revset: stop supporting plain list as input set (API)
revset: stop supporting predicate that returns plain list (API)
smartset: move set classes and related functions from revset module (API)
templatekw: have showlist() take mapping dict with no **kwargs expansion (API)
vfs: extract 'vfs' class and related code to a new 'vfs' module (API)

New in Mercurial 4.1.3 (Apr 18, 2017)

New in Mercurial 4.1.2 (Apr 18, 2017)

New in Mercurial 4.1.1 (Mar 3, 2017)

New in Mercurial 4.1 (Mar 3, 2017)

commands:
commands: config option to control bundle compression level
crecord: add an experimental option for space key to move cursor down
crecord: rewrite status line text (BC)
diff: add experimental support for more git-diff extended diff features
graft: support grafting changes to new file in renamed directory (issue5436)
help: show help for disabled extensions (issue5228)
help: update help for 'hg update' which was misleading (issue5427)
merge: fix crash on criss cross merge with dir move and delete (issue5020)
summary: add evolution "troubles" information to summary output
summary: use the same labels as log command in "parent: " line
templates: display evolution "troubles" in command line style
core:
changelog: keep track of file end in appender (issue5444)
dispatch: stop supporting non-use of @command (API)
hook: do not redirect stdout/err/in to ui while running in-process hooks (BC)
httppeer: advertise and support application/mercurial-0.2
localrepo: experimental support for non-zlib revlog compression
manifest: add bundlemanifestlog support
manifest: add unionmanifestlog support
manifest: make revlog verification optional
patch: add experimental config knob for displaying the index header
patch: add similarity config knob in experimental section
patch: add label for coloring the index extended header
patch: add label for coloring the similarity extended header
profiling: make statprof the default profiler (BC)
profiling: use vendored statprof and upstream enhancements (BC)
revlog: REVIDX_EXTSTORED flag
revlog: add clone method
revlog: ensure that flags do not overflow 2 bytes
revlog: flag processor
revlog: inline start() and end() for perf reasons
revlog: make compressed size comparisons consistent
revlog: merge hash checking subfunctions
revlog: move decompress() from module to revlog class (API)
revlog: optimize _chunkraw when startrev==endrev
revlog: pass revlog flags to addrevision
revlog: reorder index accessors to match data structure order
revlog: use compression engine API for compression
revlog: use compression engine APIs for decompression
revset: add regular expression support to 'desc'
revset: make children() not look at p2 if null (issue5439)
run-tests: forward Python USER_BASE from site (issue5425)
server: move cmdutil.service() to new module (API)
templatekw: force noprefix=False to insure diffstat consistency (issue4755)
ui: check EOF of getpass() response read from command-server channel
ui: do not translate empty configsource() to 'none' (API)
ui: factor out ui.load() to create a ui without loading configs (API)
util: compression APIs to support revlog compression and decompression
util: declare wire protocol support of compression engines
wireproto: advertise supported media types and compression formats
wireproto: only advertise HTTP-specific capabilities to HTTP peers (BC)
wireproto: perform chunking and compression at protocol layer (API)
extensions:
convert: add config option to control storing original revision
convert: add config option to copy extra keys from Git commits
convert: config option for git rename limit
convert: config option to control Git committer actions
rebase: calculate ancestors for --base separately (issue5420)
rebase: check for conflicts before continuing
rebase: fail-fast the pull if working dir is not clean (BC)
shelve: allow multiple shelves with --patch and --stat
shelve: choose a legal shelve name when no name is passed (issue5112)
shelve: make --keep option survive user intervention (issue5431)
shelve: make unshelve not crash when there are missing files (issue4176)
hgweb:
hgweb: link to raw-file on annotation page (BC)
hgweb: make log streams compatible with command server
hgweb: restore ascending iteration on revs in filelog web command
hgweb: support Content Security Policy
chg:
chg: send type information via S channel (BC)
chg: support long socket path
chgserver: make S channel support pager request
chgserver: override runcommand
Behavior Changes:
chg: send type information via S channel (BC)
crecord: rewrite status line text (BC)
hgweb: link to raw-file on annotation page (BC)
hook: do not redirect stdout/err/in to ui while running in-process hooks (BC)
profiling: make statprof the default profiler (BC)
profiling: use vendored statprof and upstream enhancements (BC)
rebase: fail-fast the pull if working dir is not clean (BC)
wireproto: only advertise HTTP-specific capabilities to HTTP peers (BC)
Internal API Changes:
bookmarks: make bookmarks.comparebookmarks accept binary nodes (API)
bookmarks: rename 'compare()' to 'comparebookmarks()' (API)
revlog: move decompress() from module to revlog class (API)
server: move cmdutil.service() to new module (API)
ui: do not translate empty configsource() to 'none' (API)
ui: factor out ui.load() to create a ui without loading configs (API)
util: remove compressors dict (API)
util: remove decompressors dict (API)
wireproto: perform chunking and compression at protocol layer (API)
dispatch: stop supporting non-use of @command (API)

New in Mercurial 4.0.2 (Jan 5, 2017)

New in Mercurial 4.0.1 (Dec 2, 2016)

New in Mercurial 4.0 RC (Nov 1, 2016)

commands:
annotate: calculate line count correctly
branchmap: acquires lock before writting the rev branch cache
clone: set default path correctly when doing a clone+share (issue5378)
copy: distinguish "file exists" cases and add a hint (BC)
commit: return 1 for interactive commit with no changes (issue5397)
config: add template support
debugobsolete: add formatter support (issue5134)
files: change documentation to match its behaviour (issue5276)
grep: add formatter support
help: show content for explicitly disabled extension (issue5228)
import: abort instead of crashing when copy source does not exist (issue5375)
import: report directory-relative paths in error messages (issue5224)
log: copy the way of ancestor traversal to --follow matcher (issue5376)
log: preserve topo sort in graph even if additional filter options specified
merge: add conflict labels to merge command
merge: avoid superfluous filemerges when grafting through renames (issue5407)
strip: report both bundle files in case of exception (issue5368)
tag: clarify warning about making a tag on a branch head
version: add formatter support
flags: allow specifying --no-boolean-flag on the command line (BC)
core:
changelog: disable delta chains
copies: make _checkcopies handle copy sequences spanning the TCA (issue4028)
formatter: add function to convert list to appropriate format (issue5217)
lock: show more detail for new-style locks in lock waiting message (issue4752)
revset: do not rewrite ':y' to '0:y' (issue5385)
revset: fix order of nested '_(|int|hex)list' expression (BC)
revset: fix order of nested 'or' expression (BC)
revset: fix order of nested 'range' expression (BC)
revset: make reverse() and sort() no-ops when ordering requirement allows (BC)
revset: support "follow(renamed.py, e22f4f3f06c3)" (issue5334)
templater: provide a termwidth keyword (issue5395)
templater: add inheritance support to style maps
templater: add relpath() to convert repo path to relative path (issue5394)
templater: make pad() evaluate boolean argument (BC)
wireproto: unescape argument names in batch command (BC)
extensions:
journal: properly check for held lock (issue5349)
journal: use fm.formatdate() to pass date tuple in appropriate type (BC)
journal: use fm.formatlist() to pass hashes in appropriate type (BC)
journal: use fm.hexfunc() to get full hash in JSON/template output (BC)
largefiles: fix 'deleted' files sometimes persistently appearing with R status
largefiles: handle that a found standin file doesn't exist when removing it
largefiles: more safe handling of interruptions while updating modifications
largefiles: when setting/clearing x bit on largefiles, don't change other bits
mq: release lock after transaction in qrefresh
mq: take wlock when 'qqueue' is doing write operations
rebase: properly calculate total commits to rebase (issue5347)
rebase: rebase changesets in topo order (issue5370) (BC)
hgweb:
hgweb: avoid line wrap between revision and annotate-info (issue5398)
hgweb: config option to control zlib compression level

New in Mercurial 3.9.2 (Oct 7, 2016)

New in Mercurial 3.9.1 (Oct 7, 2016)

New in Mercurial 3.9 RC (Aug 1, 2016)

COMMANDS:
annotate: handle empty files earlier
annotate: optimize line counting
bookmarks: abort 'push -B .' when no active bookmark
bookmarks: add 'hg pull -B .' for pulling the active bookmark (issue5258)
bookmarks: jettison bmstore's write() method per deprecation policy
bookmarks: make writing files out avoid ambiguity of file stat
commandserver: add new forking server implemented without using SocketServer
commandserver: backport handling of forking server from chgserver
commandserver: manually create file objects from socket
commandserver: send pgid in hello message
commandserver: use SOMAXCONN as queue size of pending connections
patch: allow copy information to be passed in
patch: define full messages for interactive record/revert
pull: add help information about pulling active bookmark
revert: don't backup if no files reverted in interactive mode (issue4793)
revert: use "discard"/"revert" verb when reverting interactively (issue5143)
update: fix bug when update tries to modify folder symlink
CORE:
date: accept broader range of ISO 8601 time specs
revlog: add a fast path for "ambiguous identifier"
templatekw: fix join format of parents keyword (issue5292)
templatekw: fix join format of revset() function
revset: build dict of extra sort options before evaluating set
transaction: turn lack of locking into a hard failure (API)
ui: don't fixup [paths] sub-options
ui: path option to declare which revisions to push by default
ui: provide official way to reset internal state per command
sslutil: allow TLS 1.0 when --insecure is used
sslutil: improve messaging around unsupported protocols (issue5303)
sslutil: work around SSLContext.get_ca_certs bug on Windows (issue5313)
sslutil: abort when unable to verify peer connection (BC)
sslutil: config option to specify TLS protocol version
sslutil: convert socket validation from a class to a function (API)
sslutil: don't access message attribute in exception (issue5285)
sslutil: more robustly detect protocol support
sslutil: move sslkwargs logic into internal function (API)
sslutil: per-host config option to define certificates
sslutil: remove sslkwargs() (API)
sslutil: remove ui from sslkwargs (API)
sslutil: require TLS 1.1+ when supported
sslutil: require serverhostname argument (API)
sslutil: stop checking for web.cacerts=! (BC)
sslutil: support defining cipher list
hg: copy [hostsecurity] options to remote ui instances (issue5305)
demandimport: avoid infinite recursion at actual module importing (issue5304)
rbc: fix superfluous rebuilding from scratch - don't abuse self._rbcnamescount
url: avoid re-issuing incorrect password (issue3210)
util: better handle '-' in version string (issue5302)
packagelib: do not remove packages directory in hggetversion (issue5262)
EXTENSIONS:
histedit: add optional parameter for determining intial editor line
largefiles: check file in the repo store before checking remotely (issue5257)
largefiles: make cloning not ask two times about password (issue4883)
largefiles: makes verify batching stat calls to remote
largefiles: remove additional blank line between methods in localstore
largefiles: remove additional blank lines
largefiles: send statlfile remote calls only for nonexisting locally files
rebase: do not abort if all changesets have equivalents in the destination
rebase: handle successor targets (issue5198)
rebase: introduce a rebaseruntime (RR) class
rebase: make collapsing use explicit logic to decide on the rev to reuse
rebase: pass repo, ui and opts objects to the RR class constructor
rebase: remove sortedstate-related confusion
shelve: make unshelve be able to abort in any case
keyword: avoid traceback when kwdemo is run outside a repo
rebase: turn rebase revs into set before filtering obsolete
extdiff: escape path for docstring (issue5301)
UNSORTED:
atomictempfile: add context manager support
atomictempfile: add read to the supported file operations
bashcompletion: show available command-line switches for aliases
chg: send SIGPIPE to server immediately when pager exits (issue5278)
dispatch: add fail-* family of hooks
dispatch: always load extensions before running shell aliases (issue5230)
dispatch: defer environment variable resolution in alias commands (BC)
dispatch: set ui.insecureconnections when --insecure is used
dispatch: stop setting web.cacerts=! to indicate --insecure
error: make HintException a mix-in class not derived from BaseException (API)
error: make hintable exceptions reject unknown keyword arguments (API)
hgcia: remove hgcia (BC)
journal: add share extension support
journal: add support for seaching by pattern
localrepo: jettison parents() method per deprecation policy (API)
mail: unsupport smtp.verifycert (BC)
py3: shift from future import absolute import to beginning (issue5269)
rollback: add a config knob for entirely disabling the command
subrepo: use unset instead of env -u to fix test on BSDs (issue5229)
templates: add support for filelog webcommand in json style
templates: add support for filerevision webcommand in json style
templates: add support for search webcommand in json style
templates: add support for summary webcommand in json style
update: fix bare --clean to work on new branch (issue5003) (BC)
url: add distribution and version to user-agent request header (BC)
chg: forward SIGINT, SIGHUP to process group

New in Mercurial 3.8.4 (Jul 4, 2016)

New in Mercurial 3.8.3 (Jun 10, 2016)

New in Mercurial 3.8.2 (Jun 2, 2016)

New in Mercurial 3.8.1 (May 3, 2016)

commands:
bookmarks: add 'hg push -B .' for pushing the active bookmark (issue4917)
bookmarks: avoid creating a nested repository during testing
branchmap: check node against changelog instead of repo
commands: add postincoming explicit brev argument (API)
commands: centralize code to update with extra care for non-file components
commit: block amend while histedit is in progress (issue4800)
fileset: replace predicate by filesetpredicate of registrar (API)
graft: suggest the correct tool to continue (not graft)
graft: use single quotes around command hint
log: disable graph styling when HGPLAIN is set (issue5212)
log: fix seen state handling for > 2 parents (issue5174)
log: fix status template to list copy source per dest (issue5155)
merge: minimize conflicts when common base is not shown (issue4447)
pull: activate a bookmark matching with the destination of the update (BC)
pull: deactivate a bookmark not matching with the destination of the update
revert: makes interactive mode ask to forget added files (issue4936)
verify: check directory manifests
verify: check for orphaned dirlogs
verify: include "manifest" prefix in a few more places
verify: move cross-checking of changeset/manifest out of _crosscheckfiles()
verify: show progress while verifying dirlogs
verify: don't init subrepo when missing one is referenced (issue5128) (API)
core:
bdiff: balance recursion to avoid quadratic behavior (issue4704)
bdiff: further restrain potential quadratic performance
hook: report untrusted hooks as failure (issue5110) (BC)
revset: remove useless extpredicate class (API)
revset: make sort() do dumb multi-pass sorting for multiple keys (issue5218)
templater: load and expand aliases by template engine (API) (issue4842)
templater: separate function to create templater from map file (API)
ui: add prompt argument to write (issue5154) (API)
extensions:
convert: keep converted hg parents that are outside convert.hg.revs (BC)
histedit: adds hint how to reorder changesets at editor (issue3766)
histedit: improve error when run on nodes with children (issue5056)
histedit: make histedit aware of obsolescense not stored in state (issue4800)
largefiles: add abstract methods in remotestore class
largefiles: don't access repo.changelog directly in getlfilestoupload
largefiles: don't explicitly list optional parameters that are not used
largefiles: drop partial support for not having a user cache
largefiles: introduce push --lfrev to control which revisions are pushed
largefiles: replace invocation of os.path module by vfs in lfcommands.py
largefiles: specify unit for ui.progress when operating on files
largefiles: use revisions as a ui.progress unit
rebase: 'hg pull --rebase' now update only if there was nothing to rebase
rebase: add potential divergent commit hashes to error message (issue5086)
rebase: adds storing collapse message (issue4792)
rebase: choose default destination the same way as 'hg merge' (BC)
rebase: explicitly test abort from ambiguous destination
rebase: fix crash when rebase aborts while rebasing obsolete revisions
rebase: mention help merge-tools in help
rebase: perform update through the 'update' command
rebase: remove experimental option from 'rebase' config section
rebase: respect checkunknown and checkignored in more cases
rebase: suggest the correct tool to continue (not rebase)
rebase: restrict rebase destination to the pulled set (issue5214)
shelve: adds restoring newly created branch (issue5048) (BC)
shelve: changes getting opts values by get method
shelve: make non bare shelve not saving branch information in bundle
shelve: preserve newly created branch on non-bare shelve in wctx (BC)
shelve: suggest the correct tool to continue (not unshelve)
hgweb:
hgweb: add option to convert encoding of graphdata()
hgweb: add parents to json-log (issue5074)
hgweb: generate last change date for an empty atom-bookmarks feed (issue5022)
unsorted:
blackbox: optionally log event source
bugzilla: do not load style file if template is specified (BC)
bundle: move writebundle() from changegroup.py to bundle2.py (API)
bundle: warn when update to revision existing only in a bundle (issue5004)
bundlerepo: properly handle hidden linkrev in filelog (issue4945)
changelog: add class to represent parsed changelog revisions
changelog: avoid slicing raw data until needed
changelog: backed out changeset 1778770e1982
changelog: backed out changeset 86de91c56355
changelog: lazily parse date/extra field
changelog: lazily parse description
changelog: lazily parse files
changelog: lazily parse manifest node
changelog: lazily parse user
changelog: lazy decode description (API)
changelog: lazy decode user (API)
changelog: parse description last
chg: fallback to original hg for some unsupported commands or flags
chg: forward job control signals to worker process (issue5051)
chg: pass sensitive command line flags to server
chgserver: create new process group after fork (issue5051)
date: reallow negative timestamp, fix for Windows buggy gmtime() (issue2513)
debugrevlog: fix dumping manifest fails on empty first revision (issue5062)
demandimport: blacklist sqlalchemy.events as it has side effects (issue5085)
demandimport: enforce ignore list while processing modules in fromlist
destutil: choose non-closed branch head at first (BC)
dispatch: add wd parameter to _getlocal
dispatch: catch KeyboardInterrupt more broadly
dispatch: factor out command failure handling into a function
dispatch: flush ui before returning from dispatch
dispatch: make cmdalias forward command attributes to function
dispatch: make loading extra information from extension extensible
dispatch: show deprecation warning if command has no attributes (issue5137)
dispatch: store norepo/optionalrepo/inferrepo attributes in function (API)
dispatch: strip command line options like config file options
encoding: add option to escape non-ascii characters in JSON
graphlog: bring back color to node symbol template
graphmod: set default edge styles for ascii graphs (BC)
hg: perform update after pulling during clone with share (issue5103)
http: support sending hgargs via POST body instead of in GET or headers
localrepo: move new repo requirements into standalone function (API)
localrepo: support background closing for wwrite()
mail: retain hostname for sslutil.wrapsocket (issue5203)
match: rename "narrowmatcher" to "subdirmatcher" (API)
mpatch: un-nest the move() method
mpatch: unify mpatchError (issue5182)
notify: do not load style file if template is specified (BC)
record: deprecate the extension
registrar: add templatefilter to mark a function as template filter (API)
registrar: add templatefunc to mark a function as template function (API)
registrar: add templatekeyword to mark a function as template keyword (API)
registrar: remove useless base classes (API)
remove: add progress support
remove: fix --force option help description (issue5177)
remove: queue warnings until after status messages (issue5140) (API)
scmutil: support background closing for write()
serve: add chdir command for --daemon-postexec
serve: rename --daemon-pipefds to --daemon-postexec (BC)
sslutil: require a server hostname when wrapping sockets (API)
streamclone: specify unit for ui.progress when handling data
subrepo: disable localizations when calling Git (issue5176)
templatefilters: drop broken "jsonescape" from filters table (BC)
templatefilters: make json filter be byte-transparent (BC) (issue4926)
templatekw: switch ctx of list expression to rev of {parents} (BC)
test-debugextensions: passes with byte-compilation disabled (issue5147)
testing: expand Hypothesis tests with branch commands
tests: add test for "log -r wdir() -p" (issue4871)
tests: ensure that 'hg update' is disabled during histedit (issue3655)
tests: update test output for test written on stable branch (issue5104)
treemanifest: don't use cp -T, not supported on OS X
update: change default destination to tipmost descendant (issue4673) (BC)
update: check command line before modifying repo
version: verbose list internal and external extension source (issue4731)

New in Mercurial 3.8 RC (Apr 18, 2016)

commands:
bookmarks: add 'hg push -B .' for pushing the active bookmark (issue4917)
bookmarks: avoid creating a nested repository during testing
branchmap: check node against changelog instead of repo
commands: add postincoming explicit brev argument (API)
commands: centralize code to update with extra care for non-file components
commit: block amend while histedit is in progress (issue4800)
fileset: replace predicate by filesetpredicate of registrar (API)
graft: suggest the correct tool to continue (not graft)
graft: use single quotes around command hint
merge: minimize conflicts when common base is not shown (issue4447)
pull: activate a bookmark matching with the destination of the update (BC)
pull: deactivate a bookmark not matching with the destination of the update
revert: makes interactive mode ask to forget added files (issue4936)
verify: check directory manifests
verify: check for orphaned dirlogs
verify: include "manifest" prefix in a few more places
verify: move cross-checking of changeset/manifest out of _crosscheckfiles()
verify: show progress while verifying dirlogs
verify: specify unit for ui.progress when checking files
verify: use similar language for missing manifest and file revisions
core:
hook: report untrusted hooks as failure (issue5110) (BC)
revset: remove useless extpredicate class (API)
templater: load and expand aliases by template engine (API) (issue4842)
templater: separate function to create templater from map file (API)
ui: add prompt argument to write (issue5154) (API)
extensions:
convert: keep converted hg parents that are outside convert.hg.revs (BC)
histedit: adds hint how to reorder changesets at editor (issue3766)
histedit: improve error when run on nodes with children (issue5056)
histedit: make histedit aware of obsolescense not stored in state (issue4800)
largefiles: add abstract methods in remotestore class
largefiles: don't access repo.changelog directly in getlfilestoupload
largefiles: don't explicitly list optional parameters that are not used
largefiles: drop partial support for not having a user cache
largefiles: introduce push --lfrev to control which revisions are pushed
largefiles: replace invocation of os.path module by vfs in lfcommands.py
largefiles: specify unit for ui.progress when operating on files
largefiles: use revisions as a ui.progress unit
rebase: 'hg pull --rebase' now update only if there was nothing to rebase
rebase: add potential divergent commit hashes to error message (issue5086)
rebase: adds storing collapse message (issue4792)
rebase: choose default destination the same way as 'hg merge' (BC)
rebase: explicitly test abort from ambiguous destination
rebase: fix crash when rebase aborts while rebasing obsolete revisions
rebase: mention help merge-tools in help
rebase: perform update through the 'update' command
rebase: remove experimental option from 'rebase' config section
rebase: respect checkunknown and checkignored in more cases
rebase: suggest the correct tool to continue (not rebase)
shelve: adds restoring newly created branch (issue5048) (BC)
shelve: changes getting opts values by get method
shelve: make non bare shelve not saving branch information in bundle
shelve: preserve newly created branch on non-bare shelve in wctx (BC)
shelve: suggest the correct tool to continue (not unshelve)
hgweb:
hgweb: add option to convert encoding of graphdata()
hgweb: add parents to json-log (issue5074)
hgweb: generate last change date for an empty atom-bookmarks feed (issue5022)
unsorted:
blackbox: optionally log event source
bugzilla: do not load style file if template is specified (BC)
bundle: move writebundle() from changegroup.py to bundle2.py (API)
bundle: warn when update to revision existing only in a bundle (issue5004)
bundlerepo: properly handle hidden linkrev in filelog (issue4945)
changelog: add class to represent parsed changelog revisions
changelog: avoid slicing raw data until needed
changelog: backed out changeset 1778770e1982
changelog: backed out changeset 86de91c56355
changelog: lazily parse date/extra field
changelog: lazily parse description
changelog: lazily parse files
changelog: lazily parse manifest node
changelog: lazily parse user
changelog: lazy decode description (API)
changelog: lazy decode user (API)
changelog: parse description last
chg: fallback to original hg for some unsupported commands or flags
chg: forward job control signals to worker process (issue5051)
chg: pass sensitive command line flags to server
chgserver: create new process group after fork (issue5051)
date: reallow negative timestamp, fix for Windows buggy gmtime() (issue2513)
debugrevlog: fix dumping manifest fails on empty first revision (issue5062)
demandimport: blacklist sqlalchemy.events as it has side effects (issue5085)
demandimport: enforce ignore list while processing modules in fromlist
destutil: choose non-closed branch head at first (BC)
dispatch: add wd parameter to _getlocal
dispatch: catch KeyboardInterrupt more broadly
dispatch: factor out command failure handling into a function
dispatch: flush ui before returning from dispatch
dispatch: make cmdalias forward command attributes to function
dispatch: make loading extra information from extension extensible
dispatch: show deprecation warning if command has no attributes (issue5137)
dispatch: store norepo/optionalrepo/inferrepo attributes in function (API)
dispatch: strip command line options like config file options
encoding: add option to escape non-ascii characters in JSON
graphlog: bring back color to node symbol template
graphmod: set default edge styles for ascii graphs (BC)
hg: perform update after pulling during clone with share (issue5103)
http: support sending hgargs via POST body instead of in GET or headers
localrepo: move new repo requirements into standalone function (API)
localrepo: support background closing for wwrite()
mail: retain hostname for sslutil.wrapsocket (issue5203)
match: rename "narrowmatcher" to "subdirmatcher" (API)
mpatch: un-nest the move() method
mpatch: unify mpatchError (issue5182)
notify: do not load style file if template is specified (BC)
record: deprecate the extension
registrar: add templatefilter to mark a function as template filter (API)
registrar: add templatefunc to mark a function as template function (API)
registrar: add templatekeyword to mark a function as template keyword (API)
registrar: remove useless base classes (API)
remove: add progress support
remove: fix --force option help description (issue5177)
remove: queue warnings until after status messages (issue5140) (API)
scmutil: support background closing for write()
serve: add chdir command for --daemon-postexec
serve: rename --daemon-pipefds to --daemon-postexec (BC)
sslutil: require a server hostname when wrapping sockets (API)
streamclone: specify unit for ui.progress when handling data
subrepo: disable localizations when calling Git (issue5176)
templatefilters: drop broken "jsonescape" from filters table (BC)
templatefilters: make json filter be byte-transparent (BC) (issue4926)
templatekw: switch ctx of list expression to rev of {parents} (BC)
test-debugextensions: passes with byte-compilation disabled (issue5147)
testing: expand Hypothesis tests with branch commands
tests: add test for "log -r wdir() -p" (issue4871)
tests: ensure that 'hg update' is disabled during histedit (issue3655)
tests: update test output for test written on stable branch (issue5104)
treemanifest: don't use cp -T, not supported on OS X
update: change default destination to tipmost descendant (issue4673) (BC)
update: check command line before modifying repo
version: verbose list internal and external extension source (issue4731)

New in Mercurial 3.7.3 (Mar 29, 2016)

New in Mercurial 3.7.2 (Mar 2, 2016)

New in Mercurial 3.7.1 (Feb 8, 2016)

New in Mercurial 3.7 (Feb 4, 2016)

commands:
merge: don't try to merge subrepos twice (issue4988)
pull: advance current active bookmark at pull --update correctly
templater: abort if infinite recursion detected while evaluation (issue4758)
annotate: add missing period to help
annotate: mention that -n is suppressed in help
backout: disable --merge with --no-commit (issue4874)
bookmark: deprecate 'bmstore.write' method
bookmarks: hoist getbkfile out of bmstore class
bookmarks: make _readactive safe when readlines raises ENOENT
branch: reword help text
clone: move bookmarks and checkouts before pull help
clonebundles: improve BUNDLESPEC documentation
clonebundles: remove advertisement of feature
commands.summary: switch to mergestate.read()
commands: inline definition of localrepo.parents() and drop the method (API)
commands: make backout acquire locks before processing
commands: make commit acquire locks before processing (issue4368)
commands: use context manager for opened bundle file
commandserver: drop tell() and seek() from channels (issue5049)
commandserver: reset state of progress bar per command
commit: add a way to return more information from the chunkselector
commit: add amend mode for crecord commit -i
commit: add some help examples (issue4963)
commit: adjust the quoting in the examples to be Windows friendly
commit: fix rest syntax of examples
commit: make commit acquire store lock before processing for consistency
commit: preserve extra when amending with commit --amend
fileset: add missing() predicate (issue4925)
fileset: use set instead of list to mark predicates for efficiency (API)
graft: clarify in help that '-r' is not just optional
graft: copy extra (except branch) when copying changesets
graft: hook afterresolvedstates
graft: improve --continue abort message
help: fix quoting for bundle1 options
import: add word to help text
import: limit scope of msg in tryimportone
import: reorder help text
log: speed up single file log with hidden revs (issue4747)
log: add 'hg log' example for full hashes
log: help provide sort by date example
log: mention ordering
log: speed up hg log
merge.graft: add option to keep second parent
merge: add options to warn or ignore on colliding unknown files
merge: move almost all change/delete conflicts to resolve phase (BC) (API)
merge: refuse update/merge if there are unresolved conflicts (BC)
mergestate: raise structured exception for unsupported merge records
patch: disable nobinary when HGPLAIN=1
pull: make a single call to obsstore.add (issue5006)
pull: return 255 value on update failure (issue4948) (BC)
push: specify default-push and default as fallback paths
status: back out changeset 89f49813526c
status: change + back out == clean (API)
status: revert + flag-change == modified
summary: add troubles list to the output of hg summary
summary: mention graft
summary: print unstable, bumped and divergent as unconditionally plural
tags: mention --quiet switch in help (issue4920)
verify: add a hook that can let extensions manipulate file lists
verify: clean up weird error/warning lists
verify: get rid of some unnecessary local variables
verify: move checklog() onto class
verify: move exc() function onto class
verify: remove unreachable code to reraise KeyboardInterrupt
core:
context: don't use util.cachefunc due to cycle creation (issue5043)
context: use a the nofsauditor when matching file in history (issue4749)
parsers: check results of PyInt_FromLong (issue4771)
repoview: fix corrupted hiddencache crash Mercurial (issue5042)
revlog: avoid string slice when decompressing u* chunks
revlog: clarify which revision is added to 'tested' when using cached delta
revlog: don't consider nullrev when choosing delta base
revlog: improve documentation
revlog: make calls to _isgooddelta() consistent
revlog: make clearcaches() more effective
revlog: return offset from _chunkraw()
revsetbenchmarks: support benchmarking changectx loading
ui: optionally ignore sub-options from configitems()
ui: support declaring path push urls as sub-options
util: disable floating point stat times (issue4836)
wireproto: config options to disable bundle1
wireproto: support disabling bundle1 only if repo is generaldelta
extensions:
crecord: fix help bar display issue (issue5063)
histedit: add progress support
histedit: explain basics of histedit commands
histedit: pick an appropriate base changeset by default (BC)
largefiles: actions will now always have a file - drop check
largefiles: fall back to the original for change/delete conflicts
largefiles: fix commit of missing largefiles
largefiles: make prompt order deterministic
largefiles: specify where .orig files are kept
largefiles: use a context manager in _getfile
largefiles: use util.readfile in lfconvert
largefiles: use util.readfile in overrides
largefiles: fix an explicit largefile commit after a remove (issue4969)
largefiles: prevent committing a missing largefile
mq: check for reserved patch name with qimport -r (issue5033)
mq: let the user choose where .orig files are kept
rebase: add date parameter to concludenode function
rebase: better error message when rebased changes are all in destination
rebase: create a new variable to make the next patch more legible
rebase: hook afterresolvedstates
rebase: only clear rebase status after the rebase transaction has completed
rebase: pass date parameter to concludenode
rebase: prevent creating divergence
rebase: propagate extra dict from rebase source changeset
rebase: remove extra "if" from check of collapsing named branches
rebase: better way to detect non-detaching revisions (issue5044)
rebase: restore help for rebase w/o args (issue5059)
shelve: choose where .orig file locations are kept
shelve: execute checkunfinished inside wlock scope
shelve: hook afterresolvedstates
shelve: lowercase flag description
shelve: permit shelves to contain unknown files
shelve: remove redundant acquisition of wlock for sub commands of unshelve
shelve: switch to mergestate.read()
shelve: use a context manager for file I/O in listcmd
shelve: widen wlock scope of shelve for consistency while processing
shelve: widen wlock scope of unshelve for consistency while processing
unshelve: add -k as short form of --keep
unshelve: add support for custom merge tools
unshelve: shed spurious space
hgweb:
hgweb: eliminate duck-typing to select hgweb or hgwebdir by command option
hgweb: load server settings from --web-conf (issue4699)
hgweb: make sure command options are set to all ui objects
hgweb: support rendering a sub-topic
hgweb: support rendering sub-topic indexes
hgweb: update canvas.width before dynamically redrawing graph (issue2683)
unsorted:
addrevision: only use the incoming base if it is a good delta (issue4975)
backout: commit changeset by default (BC)
backout: fix --no-commit option (issue5054)
batchget: add support for backing up files
builddeb: add --distid option to specify Distributor ID
changegroup: introduce cg3, which has support for exchanging treemanifests
changelog: add a new method to get files modified by a changeset
checkunknownfiles: make control flow clearer
crecord: edit during hg crecord should preserve cursor position (issue5041)
debugignore: find out why a file is being ignored (issue4856)
demandimport: add support for PyPy
demandimport: don't enable when running under PyPy
destutil: use scmutil.revrange for desthistedit (issue5001)
diff: don't crash when merged-in addition was removed (issue4786)
discovery: properly filter changeset in 'peer.known' (issue4982)
dispatch: copy inferrepo attribute to alias commands
dispatch: report similar names consistently
dispatch: use print function
dispatch: use versiontuple()
dockerrpm: fix CentOS 5 RPMs (issue4977)
encoding: handle UTF-16 internal limit with fromutf8b (issue5031)
encoding: re-escape U+DCxx characters in toutf8b input (issue4927)
error: add a structured exception for unsupported merge records
extdiff: correctly handle deleted subrepositories (issue3153)
extdiff: use @command decorator to set up diff commands
filemerge: add a 'leave unresolved' option to change/delete prompts
filemerge: add a 'leave unresolved' option to regular prompts
filemerge: add support for change/delete conflicts to the ':local' merge tool
filemerge: add support for change/delete conflicts to the ':other' merge tool
filemerge: add support for change/delete conflicts to the ':prompt' tool
filemerge: default change/delete conflicts to 'leave unresolved' (BC)
filemerge: default regular prompts to 'leave unresolved' (BC)
graphlog: make node symbol templatable by ui.graphnodetemplate option
graphlog: rename glog function
hghave: support HGMODULEPOLICY for pure
localrepo: don't reference transaction from hook closure (issue5043)
lsprof: support PyPy (issue4573)
mac: fix percent-encoding of non-utf-8 characters (issue4999)
match: add option to return line and lineno from readpattern
mercurial: pass ui to extensions.load (issue5007)
mercurial: support loading modules from zipimporter
paths: do not process default-push as pushurl of default path (issue5000)
posix: work around "posix" systems without os.link available (issue4974)
run-tests: skip threading for a single test (issue5040)
scmutil: support background file closing
sslutil: fix reversed logic (issue5034)
streamclone: use backgroundfilecloser (issue4889)
streamclone: use context manager for writing files
streamclone: use read()
templates: make earlycommands and othercommands optional
templates: use canvaswidth instead of fixed width for canvas (issue2683)
test-extension: do not depend on demandimport (issue5012)
unionrepo: fix wrong rev being checked in iscensored (issue5024)
webcommands: get correct parents when comparing a removed file (issue4962)
webcommands: stop using ersatz if-else ternary operator for rename variable
webcommands: test that fctx is not None in filediff()
zeroconf: access repo on hgweb_mod properly (issue5036)

New in Mercurial 3.6.3 (Jan 4, 2016)

New in Mercurial 3.6.2 (Jan 4, 2016)

New in Mercurial 3.6.1 (Nov 11, 2015)

New in Mercurial 3.6 (Nov 11, 2015)

commands:
bookmark: do not crash when active bookmark is forward and --date is used
bookmarks: don't deactivate on no-op update (issue4901)
clone: fix updaterev to update to latest branch changeset (issue4528)
clonebundles: support for seeding clones from pre-generated bundles
commit: abort when a committemplate is not changed (BC)
help: distinguish sections when multiple match (issue4802)
help: pass around ui to doc loader (API)
help: pass around ui to rewriter hooks (API)
merge: perform all premerges before any merges (BC)
merge: abort on file/directory case folding collisions (issue4892)
phases: return zero for no-op operations (issue4751) (BC)
resolve: perform all premerges before performing any file merges (BC)
core:
cmdutil: make in-memory changes visible to external editor (issue4378)
cmdutil: stop tryimportone from using dirstateguard (BC)
context: don't hex encode all unknown 20 char revision specs (issue4890)
dirstate: batch calls to statfiles (issue4878)
parsers: fix infinite loop or out-of-bound read in fm1readmarkers (issue4888)
revlog: add an aggressivemergedelta option
revlog: change generaldelta delta parent heuristic
revset: do not fall through to revspec for literal: branch (issue4838)
revsets: makes follow() supports file patterns (issue4757) (BC)
templater: add new docheader/footer components for XML (issue4135)
templater: create string unescape helper (issue4798)
templater: do not pre-evaluate generator keyword at runsymbol (issue4868)
templater: introduce {latesttag()} function to match a pattern (issue4184)
templater: switch ctx of list expression to rev of revset() (BC)
ui: change default path fallback mechanism (issue4796)
util: use tuple accessor to get accurate st_mtime value (issue4836)
wireproto: properly parse false boolean args (BC)
extensions:
histedit: use one editor when multiple folds happen in a row (issue3524) (BC)
largefiles: better handling of merge of largefiles that are not available
mq: generate patch names from first line of description
rebase: avoid losing branch commits with --keepbranch (issue4835)
rebase: fix warning about ignoring tool option on rebase continue (issue4698)
rebase: fix wrong 'no changes to commit' when using --collapse
rebase: on abort delete rebase state file no matter what
rebase: properly abort when destination is public (issue4896)
rebase: properly handle chains of markers with missing nodes
shelve: bundle using bundle2 if repository is general delta (issue4862)
shelve: delete shelve statefile on any exception during abort
shelve: restore shelved dirstate explicitly after aborting transaction
shelve: restore unshelved dirstate explicitly after aborting transaction
hgweb:
hgweb: consume generator inside context manager (issue4756)
hgweb: ensure both foreground and background colors are specified (issue4872)
hgweb: overwrite cwd to resolve file patterns relative to repo (issue4568)
unsorted:
builddeb: actually run make when building the deb (issue4778)
buildrpm: mkdir -p two needed directories (issue4779)
bundle2: don't try to recover from a GeneratorExit (issue4785)
bundle: extend the format of --type to support version and compression
debian: install bash completion as hg and not mercurial (issue4900)
debian: install hgk as part of mercurial-common (issue4829)
dispatch: error out on invalid -R path even if optionalrepo (issue4805) (BC)
dispatch: stop warning about EPIPE in --debug mode
graphmod: compute slow revset query once prior to reachableroots (issue4782)
highlight: add highlightfiles config option which takes a fileset (issue3005)
highlight: add option to prevent content-only based fallback
highlight: exit early on textual and unknown files (issue3005)
incoming: request a bundle2 when possible (BC)
localrepo: recreate phasecache if changelog was modified (issue4855)
lock: loop a finite number of times in trylock (issue4787)
mercurial: add debugextensions command (issue4676)
minirst: don't treat top level item as children of last item (issue4803)
notify: fix fromauthor setting for 'incoming' hook type (issue4194)
posix: shellquote do not require quoting for "+" (issue4818)
reachableroots: verify integer range of heads argument (issue4775)
revpair: restrict odd-range handling to top-level x:y expression (issue4774)
revrange: drop old-style parser in favor of revset (API)
test-merge-tools: include /usr/sbin in path for sysctl (issue4813)
traceback: allow providing a local support contact point
treemanifest: rework lazy-copying code (issue4840)
windows: read all global config files, not just the first (issue4491) (BC)
worker: restore old countcpus code (issue4869)

New in Mercurial 3.5.2 (Oct 2, 2015)

New in Mercurial 3.5.1 (Oct 2, 2015)

New in Mercurial 3.5 (Aug 1, 2015)

Commands:
bookmark: informs of failure to upgrade a bookmark
bookmark: remove the "touch changelog" hack
bookmarks: abort the whole push if bookmarks fails to update (BC)
bookmarks: change bookmark within a transaction
bookmarks: clear active bookmark on non-linear update
bookmarks: mark internal-only config option
bookmarks: mark internal-only option
bookmarks: name label for active bookmark correctly
bookmarks: remove unused updatecurrentbookmark function (API)
bookmarks: rename bookmarkcurrent to activebookmark (API)
bookmarks: rename current to active in variables and comments
bookmarks: rename readcurrent to readactive (API)
bookmarks: rename setcurrent to activate (API)
bookmarks: rename unsetcurrent to deactivate (API)
bookmarks: simplify iscurrent to isactivewdirparent (API)
bookmarks: use try/except/finally
branch: don't warn about branches if repository has multiple branches already
commands: use the optional badfn argument when building a matcher
commands: use try/except/finally
commit: add ui.allowemptycommit config option
commit: avoid match.files() in conditions
commit: improve --close-branch documentation
commit: mark internal-only option
commit: no longer allow empty commit with the 'force' argument (API)
config: give it an includepaths option for looking for config files
files: recurse into subrepos automatically with an explicit path
import-checker: add xargs like mode
import-checker: don't treat modules as relative one if not found
import-checker: exclude mercurial packages installed into the system path
import-checker: loop to get list of locally defined modules at first
import: cross-reference patch.fuzz option from 'hg help import'
import: cross-reference ui.patch option from 'hg help import'
import: use ui.allowemptycommit to allow empty commits
log: add a status template
patch: add 'extra' argument to makememctx
patch: add fuzz config flag (issue4697)
phases: abort the whole push if phases fail to update (BC)
phases: fix bug where native phase computation wasn't called
phases: really fix native phase computation
pull: allow a generic way to pass parameters to the pull operation
pull: document the race condition with bookmark name
pull: only list remote bookmarks if -B is used to populate pulled heads
pull: only prefetch bookmarks when using bundle1
pull: prevent race condition in bookmark update when using -B (issue4689)
pull: skip pulling remote bookmarks with bundle1 if a value already exist
pull: skip pulling remote bookmarks with bundle2 if a value already exists
push: catch and process PushkeyFailed error
push: make pushkey part advisory
push: only say we are trying to push obsmarkers when we actually try
revert: fix edition of newly added file during --interactive
summary: add a phase line (draft, secret) to the output
summary: move the parents phase marker to commit line (issue4688)
tags: support reading tags cache without populating
tags: support setting hgtags fnodes cache entries
tags: use try/except/finally
verify: check the subrepository references in .hgsubstate
verify: clarify misleading fncache message
Core:
dirstate: ensure mv source is marked deleted when walking icasefs (issue4760)
ignore: fix include: rules depending on current directory (issue4759)
parsers: fix buffer overflow by invalid parent revision read from revlog
revlog: add support for a callback whenever revisions are added
revlog: raise an exception earlier if an entry is too large (issue4675)
revset: fix a crash in parents() when 'wdir()' is in the set
revset: fix iteration over ordered addset composed of non-ordered operands
revset: gratuitous formating fix in keyword
revset: improves time complexity of 'roots(xxx)'
revset: port extra() to support keyword arguments
revset: reduce nesting of chained 'or' operations (issue4624)
revsetbenchmarks: fix argument parsing
revsetbenchmarks: improve error output in case of failure
revsetbenchmarks: improve revision printing
revsetbenchmarks: support combining variants with "+"
templater: do not reevaluate rawstring as template (BC)
templater: remove noop calls of parsestring(s, quoted=False) (API)
templater: rename parsestring() to unquotestring() (API)
templater: take any string literals as template, but not for rawstring (BC)
templater: tokenize decimal integer literal (issue4638) (BC)
wireproto: correctly escape batched args and responses (issue4739)
Extensions:
convert: add config option for disabling ancestor parent checks
convert: add support for specifying multiple revs
convert: allow customizing git remote prefix
convert: apply the appropriate phases to the destination (issue4165)
convert: fix bug with converting the same commit twice
convert: handle copies when converting from Perforce (issue4744)
convert: handle deleted files when converting from Perforce (issue4743)
convert: handle deleted files when converting from Perforce (issue4743)
convert: improve support for unusual .gitmodules
convert: support incremental conversion with hg subrepos
convert: support multiple specifed revs in git source
convert: use 'default' for specifying branch name in branchmap (issue4753)
convert: when converting from Perforce use original local encoding by default (BC)
extdiff: allow modifications in subrepos to be copied back
highlight: produce correct markup when there's a blank line just before EOF
histedit: abort rather than edit a public changeset (issue4704)
histedit: mark defaultrev option experimental
largefiles: allow the archiving of largefiles to be disabled
largefiles: avoid match.files() in conditions
largefiles: ignore hidden changesets with 'verify --large --lfa'
largefiles: pass in whole matcher to getstandinmatcher()
largefiles: restore the original converter class after lfconvert --to-normal
largefiles: use the convert extension for 'lfconvert --to-normal'
largefiles: use the optional badfn argument when building a matcher
largefiles: use try/except/finally
mq: ban \r and \n in patch names (issue4711)
mq: tweak config reading to make check-config happy
mq: use the optional badfn argument when building a matcher
mq: use ui.allowemptycommit to allow empty commits
rebase: add short -k option for --keep
rebase: remove extraneous blank at the end of file
shelve: allow --patch and --stat without --list for a single shelf
shelve: always backup shelves instead of deleting them
shelve: keep old backups if timestamp can't decide exact order of them
shelve: make maxbackup doc check-config friendly
shelve: omit incorrect 'commit' suggestion at 'hg shelve -i'
shelve: only keep the latest N shelve backups
shelve: refactor allowables to specify sets of valid operations
shelve: use try/except/finally
transplant: restore dirstate correctly at unexpected failure
Hgweb:
hgweb: don't dereference symbolic revision in paper & coal style (issue2296)
paper: show branch/tags/bookmarks when blaming (issue3559)
paper: show branch/tags/bookmarks when browsing (issue3559)
paper: show branch/tags/bookmarks when comparing (issue3559)
paper: show branch/tags/bookmarks when diffing (issue3559)
paper: show branch/tags/bookmarks when viewing (issue3559)
Unsorted:
archive: drop the leading '.' path component from the prefix (issue4634)
archive: fix changesincelatesttag with wdir()
archive: support 'wdir()'
bufferedinputpipe: remove N^2 computation of buffer length (issue4735)
bundle2: fix type of experimental option
bundle2: pull bookmark the old way if no bundle2 listkeys support (issue4701)
canonpath: fix infinite recursion
censor: make various path forms available like other Mercurial commands
censor: mark experimental option
changegroup: compute seen files as changesets are added (issue4750)
changelog: change input type of index_get_parents
changelog: fix bug in heads computation
changelog: move index_get_parents function up
changelog: update read pending documentation
check-commit: catch both patterns of double empty lines
check-commit: print limit when user has a too-long summary
check-config: add config option checker
crecord: fix issue when backgrounding editor would leave artefact
demandimport: alias builtin as builtins
demandimport: define a 'deactivated' context manager
demandimport: support importing builtins for Python 3
devel: rename 'all' to 'all-warnings' (BC)
dispatch: add support for python-flamegraph[0] profiling
dispatch: disable demandimport for the --debugger option
email: fix config default value inconsistency
exchange: support transferring .hgtags fnodes mapping
extdiff: add support for subrepos
filemerge: mark internal-only config option
formatter: add template support
formatter: mark developer options
generaldelta: mark experimental reordering option
hg: support for auto sharing stores when cloning
hgewb: disable progress when serving (issue4582)
hghave: allow adding customized features at runtime
http2: mark experimental and developer options
localrepo: eliminate requirements class variable (API)
localrepo: kill off sopener (API)
localrepo: mark format options
mail: pass ui to sslutil.wrapsocket() even if verifycert is off (issue4713)
match: add an optional constructor parameter for a bad() override
match: add optional warn argument
match: introduce boolean prefix() method
match: resolve filesets in subrepos for commands given the '-S' argument
parser: factor out function that parses right-hand side of prefix/infix ops
parser: fill invalid infix and suffix actions by None
parser: reorder infix/suffix handling to be similar to prefix/primary flow
parser: resolve ambiguity where both prefix and primary actions are defined
parser: separate actions for primary expression and prefix operator
parser: take suffix action if no infix action is defined
pathutil: hint if a path is root relative instead of cwd relative (issue4663)
phase: default to current revision if no rev is provided (issue4666)
profiler: mark developer-only config option
progress: deprecate the progress extension
progress: mark experimental option
progress: respect ui.quiet (issue4726)
revrange: build balanced tree of addsets from revisions (issue4565)
run-tests: introduce PYTHON3 boolean constant (issue4668)
run-tests: move all open-coded sys.version_info checks to PYTHON3 (issue4668)
run-tests: move unicode-to-bytes operations on paths to a helper (issue4667)
run-tests: prefer PYTHON3 constant to many version_info checks (issue4668)
run-tests: replace open-coded .decode()s on paths with a helper (issue4667)
scmutil: add an optional parameter to matcher factories for a bad() override
scmutil: use the optional badfn argument when building a matcher
setup.py: drop compatibility with Python 2.4 and 2.5 (BC)
setup: hide octal literals inside strings so they're portable (issue4554)
sshpeer: break "OutOfBandError" feature for ssh (BC)
sshpeer: run the ssh command unbuffered
ssl: prompt passphrase of client key file via ui.getpass() (issue4648)
subrepo: mark internal-only option
templatekw: display active bookmark more consistently (issue4552) (BC)
test-discovery: disable bundle2 for legacy test (issue4610)
bookmarks: abort the whole push if bookmarks fails to update (BC)
phases: abort the whole push if phases fail to update (BC)
templater: do not reevaluate rawstring as template (BC)
templater: take any string literals as template, but not for rawstring (BC)
templater: tokenize decimal integer literal (issue4638) (BC)
bookmarks: remove unused updatecurrentbookmark function (API)
bookmarks: rename bookmarkcurrent to activebookmark (API)
bookmarks: rename readcurrent to readactive (API)
bookmarks: rename setcurrent to activate (API)
bookmarks: rename unsetcurrent to deactivate (API)
bookmarks: simplify iscurrent to isactivewdirparent (API)
commit: no longer allow empty commit with the 'force' argument (API)
templater: remove noop calls of parsestring(s, quoted=False) (API)
templater: rename parsestring() to unquotestring() (API)

New in Mercurial 3.4.2 (Jul 20, 2015)

New in Mercurial 3.4.1 (Jun 10, 2015)

New in Mercurial 3.4 RC (May 2, 2015)

Commands:
annotate: add option to annotate working-directory files
annotate: always prepare ancestry context of base fctx (issue4600)
annotate: always adjust linkrev before walking down to parents (issue4623)
annotate: prepare ancestry context of workingfilectx
bookmarks: add incoming() to replace diff() for incoming bookmarks
bookmarks: add outgoing() to replace diff() for outgoing bookmarks
bookmarks: check @pathalias suffix before available @number for efficiency
bookmarks: enhance test of showing detail about incoming/outgoing bookmarks
bookmarks: prevent divergent bookmark from being updated unexpectedly
bookmarks: reuse @number bookmark, if it refers changeset referred remotely
bookmarks: rewrite comparing bookmarks in commands.summary() by compare()
bookmarks: show detailed status about incoming/outgoing bookmarks
clone: add progress support to hardlink clones (issue3059)
commands.import: accept a prefix option
commands.push: abort when revisions evaluate to empty set (BC)
commands: add ui.statuscopies config knob
debuginstall: expand the editor path before searching for it (issue4380)
files: split reusable implementation into cmdutil for subrepo support
files: use ctx object to access dirstate
graft: allow creating sibling grafts
graft: record intermediate grafts in extras
log: display closing-branch nodes as "_" (BC)
log: fix --follow null parent not to include revision 0
log: make -fr show complete history from the given revs
log: prefer 'wctx' over 'pctx' for working context
patch.internalpatch: accept a prefix parameter
patch.internalpatch: add a default value for prefix
patch: rename pathstrip to pathtransform
pull: print "pulling from foo" before accessing the other repo
push: acquire local 'wlock' if "pushback" is expected (BC) (issue4596)
resolve: silence warning of unknown pats for -l/--list (BC)
revert: evaluate filesets against working directory (issue4497)
revert: fix --interactive on local modification (issue4576)
revert: stop marking files clean after interactive revert (issue4592)
revert: accept just -I/-X without paths or -a/-i (issue4592)
revert: apply normallookup on reverted file if size isn't changed (issue4583)
revert: restore the ability to revert across case only renames (issue4481)
status: add relative directory help text (issue3835)
Core:
bundle2: capture transaction rollback message output (issue4614)
bundle2: disable ouput capture unless we use http (issue4613 issue4615)
changelog: fix readpending if no pending data exist (issue4609)
dirstate: fix order of initializing nf vs f
filelog: allow censored files to contain padding data
merge: run update hook after the last wlock release
pushkey: flush pending data before running a pre-pushkey hook (issue4607)
repoview: improve compute staticblockers perf
revlog: _addrevision creates full-replace deltas based on censored revisions
revlog: add "iscensored()" to revlog public API
revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
revlog: in addgroup, reject ill-formed deltas based on censored nodes
revlog: make converting from inline to non-line work after a strip
revlog: special case expanding full-replacement deltas received by exchange
subrepo: don't write .hgsubstate lines with empty subrepo state (issue4622)
subrepo: update the help text to account for diff -I/-X gitsubrepo support
tags: establish a separate and shared cache of .hgtags filenodes
tags: change format of tags cache files
tags: have a different cache file per filter level
ui: disable revsetaliases in plain mode (BC)
util: add progress callback support to copyfiles
windows: make shellquote() quote any path containing '\' (issue4629)
Extensions:
color: be more conservative about setting ANSI mode on Windows (BC)
color: fix crash in cmd.exe
color: omit terminfo/win32 warning if non-interactive (issue4543)
color: support a different color mode when the pager is active
convert: adjust progress bar for octopus merges (issue4169)
histedit: add --edit-plan option to histedit
histedit: allow histedit --continue when not on a descendant (BC)
histedit: fix preventing strips during histedit
histedit: fix style of new error message
histedit: improve roll action integration with fold
histedit: fix rollup prompting for a commit message (issue4606)
largefiles: don't crash when cloning to a remote repo
largefiles: don't mangle filesets when fixing up the log matcher
largefiles: always consider updatelfiles 'checked' parameter set
largefiles: avoid infinite recursive call of openlfdirstate in overriderevert
largefiles: don't create chain of contains calls
largefiles: don't prefix standin patterns with '.hglf' when logging
largefiles: don't warn when reverting a forgotten largefile
largefiles: extract and reuse 'standin' variable in overriderevert()
largefiles: for update -C, only update largefiles when necessary
largefiles: handle logging from outside the repo
largefiles: introduce lfutil.findstorepath()
largefiles: override cmdutil.revert() instead of comands.revert()
largefiles: report the source of copied/moved largefiles in status -C
largefiles: set the extension as enabled locally after a clone requiring it
largefiles: teach log to handle patterns
largefiles: update _subdirlfs() comment
largefiles: use common function to build content of .hg_archival.txt
largefiles: use lfutil.findstorepath() when verifying a local repo
largefiles: use the core file copy logic to validate the destination path
largefiles: use the share source as the primary local store (issue4471)
mq: avoid silent failure when single patch doesn't apply (issue4604)
rebase: don't forward "source" argument to rebase (issue4633)
rebase: restore bookmark state on abort
record: edit patch of newly added files (issue4304)
record: fix adding new file with record from within a subdir (issue4626)
record: fix record with change on moved file crashes (issue4619)
shelve: acquire lock in the right order
shelve: add interactive mode
shelve: add interactive mode command line option
Hgweb:
hgweb: resurrect tag on diffline to fix rendering in monoblue style
hgweb: use introrev() for finding parents (issue4506)
json: implement {bookmarks} template
json: implement {branches} template
json: implement {changeset} template
json: implement {comparison} template
json: implement {fileannotate} template
json: implement {filediff} template
json: implement {helptopics} template
json: implement {help} template
json: implement {manifest} template
json: implement {shortlog} and {changelog} templates
json: implement {tags} template
Unsorted:
archive: change the default prefix to '' from None
archive: look for first visible revision to build repo identity (issue4591)
bundle2-localpeer: properly propagate the server output on error (issue4594)
bundle2-wireproto: properly propagate the server output on error (issue4594)
changeset_printer: display p1rev:p1node with "+" suffix for workingctx
check-commit: be more picky about detection of wrong bug tag
check-commit: check capitalization in summary lines
churn: deprecate -t option in favour of -T
crecord: fix another underbar
crecord: fix underbar style for orig_stdout
devel-warn: add a prefix to all messages ("devel-warn: ")
dirs._addpath: don't mutate Python strings after exposing them (issue4589)
dispatch: consolidate formatting of ParseErrors
dispatch: offer near-edit-distance suggestions for {file,rev}set functions
dispatch: offer suggestions of similar-named commands
extensions: support callbacks after another extension loads
get-with-headers: support parsing and pretty printing JSON
graphlog: do not bypass commands.log so that -fr works
graphlog: move comment and flag denoting revs might be unsorted
graphlog: remove too early return from getgraphlogrevs() for empty repo
lazymanifest: fix memory leak in lmiter_iterentriesnext() after 3d485727e45e
lazymanifest: fix pure hg iterkeys()
linkrev: fix issue with annotate of working copy
manifestv2: add support for reading new manifest format
manifestv2: add support for writing new manifest format
obsolete: avoid infinite loop from obs-cycle in divergence (issue4126)
record: add interactive option to the commit command
record: allow editing new files (issue4304)
record_curses: fix ui bug for newly added file
revbranchcache: add test for when the cache is not writable
revbranchcache: move out of branchmap onto localrepo
revbranchcache: populate cache incrementally
revbranchcache: store repo on the object
revbranchcache: write cache even during read operations
revrange: don't parse revset aliases as hash prefixes (issue4553)
rollback: clear resolve state (issue4593)
ssl: resolve symlink before checking for Apple python executable (issue4588)
ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
strip: properly clear resolve state with --keep (issue4593)
subrepo: add 'cat' support for git subrepos
subrepo: add basic support to hgsubrepo for the files command
subrepo: add include/exclude support for diffing git subrepos
subrepo: add status support for ignored and clean files in git subrepos
subrepo: change arguments of abstractsubrepo.init (API)
subrepos: support adding files in git subrepos
test-convert-git: show insane progress bar with octopus merge (issue4169)
test-histedit-edit.t: demonstrate qnew fails during a histedit (issue4366)
test-https: enable dummycert test only if Apple python is used (issue4500)
test-shelve: be more lenient about whitespace (issue4124)
tests: add test showing tags cache drops filtered heads (issue4550)
tests: handle deleted .hg directory (git 2.2.0 and higher) (issue4585)
trydiff: join filename with prefix only once
unbundle: acquire 'wlock' when processing bundle2 (BC) (issue4596)
webcommands: define a dict of available commands
webcommands: define web commands using a decorator
color: be more conservative about setting ANSI mode on Windows (BC)
commands.push: abort when revisions evaluate to empty set (BC)
histedit: allow histedit --continue when not on a descendant (BC)
log: display closing-branch nodes as "_" (BC)
push: acquire local 'wlock' if "pushback" is expected (BC) (issue4596)
resolve: silence warning of unknown pats for -l/--list (BC)
ssl: set explicit symbol "!" to web.cacerts to disable SSL verification (BC)
unbundle: acquire 'wlock' when processing bundle2 (BC) (issue4596)
subrepo: change arguments of abstractsubrepo.init (API)

New in Mercurial 3.3.3 (Apr 10, 2015)

New in Mercurial 3.3.2 (Mar 3, 2015)

New in Mercurial 3.3.1 (Mar 3, 2015)

New in Mercurial 3.3 (Mar 2, 2015)

commands:
add: add back forgotten files even when not matching exactly (BC)
addremove: add back forgotten files (BC)
addremove: add support for the -S flag
addremove: print relative paths when called with -I/-X (BC)
addremove: support addremove with explicit paths in subrepos
backout: add --commit option
commit: abort if --addremove is specified, but fails
commit: remove reverse search for copy source when not in parent (issue4476)
commit: propagate --addremove to subrepos if -S is specified (issue3759)
graft: show more useful status information while grafting
core:
bundles: do not overwrite existing backup bundles (BC)
osx: patch .pax.gz files in pkg bundles so they extract as root (issue4081)
revset: handle hidden linkrev for file missing for head (issue4490)
revset: allow rev(-1) to indicate null revision (BC)
revset: fix ancestors(null) to include null revision (issue4512)
subrepo: don't abort in add when non-hg subrepos are present (issue4513)
cmdserver: use given streams as pipe channels like other commands
extensions: only check compatibility against major and minor versions (BC)
https: support tls sni (server name indication) for https urls (issue3090)
ignore: resolve ignore files relative to repo root (issue4473) (BC)
linkrev: handle filtered linkrev with no visible children (issue4307)
linkrev: also adjust linkrev when bootstrapping annotate (issue4305)
linkrev: use the right manifest content when adjusting linrev (issue4499)
memctx: calculate manifest correctly with newly-removed files (issue4470)
memctx: fix manifest for removed files (issue4470)
obsstore: disable garbage collection during initialization (issue4456)
subrepo: support remove with explicit paths in subrepos
subrepo: add full revert support for git subrepos
subrepo: add partial diff support for git subrepos
subrepo: add status support for ignored files in git subrepos
win32: remove Mercurial.ini file from Inno Setup installer (issue4435)
hgweb:
hgweb: allow viewing diffs against p1 or p2 for merge commits (issue3904)
extensions:
color: add support for colorizing git subrepo diffs
color: add missing 'dim' in _effects
convert: on svn failure, note libsvn version (issue4043)
convert: replace revision references in messages if they are >= short hashes
convert: handle LookupError in mercurial_source.lookuprev()
extdiff: reintroduce backward compatibility with manual quoting of parameters
histedit: add a test to show that issue4251 is fixed (issue4251)
largefiles: fix commit of a directory with no largefile changes (issue4330)
largefiles: use 'default' path for pulling largefiles, not 'default-push'
largefiles: enable subrepo support for add, forget, remove
largefiles: show progress when checking standin hashes in outgoing changesets
mq: smarter handling of plain headers
patchbomb: don't honor whitespace and format-changing diffopts (BC)
rebase: show more useful status information while rebasing
rebase: ensure rebase revision remains visible (issue4504)
extdiff: avoid unexpected quoting arguments for external tools (issue4463)
highlight: ignore Unicode's extra linebreaks (issue4291)
record: don't honor format-changing diffopts (issue4459)
share: add option to share bookmarks
transplant: properly skip empty changeset (issue4423)

New in Mercurial 3.3 RC (Jan 19, 2015)

commands:
bookmark: read pending data when appropriate
bookmarks: factor out bookmark file opening for easier extensibility
bookmarks: factor out repository lookup from writing bookmarks file
branchcache: add debug output whenever cache files use truncate
branchcache: introduce revbranchcache for caching of revision branch names
branchcache: make _rbcrevslen handling more safe
branches: deprecate -a
branchmap: add seek() to end of file before calling tell() on append open()
branchmap: use revbranchcache when updating branch map
commit: abort if --addremove is specified, but fails
commit: propagate --addremove to subrepos if -S is specified (issue3759)
graft: drop cset description from empty commit message
graft: give helpful warning for empty grafts
graft: show hashes in user-facing messages
graft: show more useful status information while grafting
graft: use a real conflict for the tests
help: suggest '-v -e' to get built-in aliases for extensions (issue4461)
log: use namespace logname and colorname
log: use new namespaces api to display names
patch: add a new function to initialize diffopts by feature
patch: rename diffopts to diffallopts
patchbomb: don't honor whitespace and format-changing diffopts (BC)
push: elevate phase transaction to cover entire operation
push: send highest changegroup format supported by both side
status: cache dirstate status in _dirstatestatus()
status: don't list files as both clean and deleted
status: don't list files as both removed and deleted
status: don't override _buildstatus() in workingcommitctx
core:
filelog: fix backwards comment for 'backrevref'
filelog: remove trailing "form feed" character
filelog: use censored revlog flag bit to quickly check if a node is censored
revlog: add a method to get missing revs incrementally
revlog: add config variable for limiting delta-chain length
revlog: add flags argument to _addrevision, update callers use default flags
revlog: bound based on the length of the compressed deltas
revlog: cache chain info after calculating it for a rev (issue4452)
revlog: compute length of compressed deltas along with chain length
revlog: define censored flag for revlogng index
revlog: increase I/O bound to 4x the amount of data consumed
revlog: make a predicate clearer with parens
revlog: store fulltext when compressed delta is bigger than it
revlog: switch findmissing* methods to incrementalmissingrevs
revlog: verify censored flag when hashing added revision fulltext
revset-filelog: handle hidden linkrev for file missing for head (issue4490)
transaction: allow generating files with a suffix
transaction: support cache file in backupentries
transaction: support for callbacks during abort
transaction: use the right location when cleaning up backup file (issue4479)
extensions:
color: add support for colorizing git subrepo diffs
convert: on svn failure, note libsvn version (issue4043)
histedit: add a test to show that issue4251 is fixed (issue4251)
largefiles: align the output messages for a removed file with core methods
largefiles: align the output messages for an added file with core methods
largefiles: avoid printing messages while rebasing by "_lfstatuswriters"
largefiles: avoid printing messages while transplanting by "_lfstatuswriters"
largefiles: avoid redundant "updatelfiles" invocation in "overridetransplant"
largefiles: convert addlargefiles() to vfs
largefiles: don't clobber merge action message with user message
largefiles: don't duplicate 'actions' into 'actionbyfile'
largefiles: don't pop largefile-specific arguments to the add command
largefiles: don't print files as both large and normal in addremove dryruns
largefiles: don't rehash largefiles in updatelfiles if standin hash changed
largefiles: don't unnecessarily sort merge action lists
largefiles: don't use 'r' action for normal file that doesn't exist
largefiles: don't use 'r' action for standin that doesn't exist
largefiles: drop the override for 'fetch'
largefiles: drop the unfiltered repo usage in overridepurge()
largefiles: eliminate a duplicate message when removing files in verbose mode
largefiles: enable subrepo support for add
largefiles: enable subrepo support for forget
largefiles: enable subrepo support for remove
largefiles: ensure that the standin files are available in getlfilestoupload()
largefiles: factor out procedures to update lfdirstate for post-committing
largefiles: factor out procedures to update standins for pre-committing
largefiles: fix unused import
largefiles: get function to write status messages via "getstatuswriter()"
largefiles: introduce "_lfcommithooks" to abstract pre-committing procedures
largefiles: introduce "_lfstatuswriters" to customize status reporting
largefiles: look at unfiltered().lfstatus to allow status() to be filtered
largefiles: make linear update set unsure largefiles normal if unchanged
largefiles: pass a matcher instead of a raw file list to removelargefiles()
largefiles: properly sync lfdirstate after removing largefiles
largefiles: put same 'action' object back in 'newglist'
largefiles: return the list of added files from addlargefiles()
largefiles: rewrite merge code using dictionary with entry per file
largefiles: shortcircuit status code also for non-matching patterns
largefiles: show progress when checking standin hashes in outgoing changesets
largefiles: simplify check for lack of path arguments
largefiles: split the creation of a normal matcher out of its install method
largefiles: start by finding files of interest
largefiles: update comments to refer to the right overridden method
largefiles: update standins only at the 1st commit of "hg rebase --continue"
largefiles: update standins only at the 1st commit of "transplant --continue"
largefiles: use clearer debug messages in actions
largefiles: wrap "rebase.rebase" for functions using it directly
mq: drop updateheader - inserthgheader and insertplainheader is enough
mq: smarter handling of plain headers
rebase: add a 'revtodo' constant
rebase: always store rev in state, also when collapsing
rebase: clarify comment about merge ancestor when rebasing merges
rebase: clarify naming of variables holding node hashes - don't call them rev
rebase: handle revtodo as a special value when storing/restoring state
rebase: improve debug messages while processing the list of rebases
rebase: show more useful status information while rebasing
rebase: show warning when rebase creates no changes to commit
rebase: use '>= 0' to know is a revision was rebased
hgweb:
hgweb: allow viewing diffs against p1 or p2 for merge commits (issue3904)
unsorted:
add: add back forgotten files even when not matching exactly (BC)
add: pass options via keyword args
addremove: add back forgotten files (BC)
addremove: add support for the -S flag
addremove: print relative paths when called with -I/-X (BC)
addremove: support addremove with explicit paths in subrepos
backout: add --commit option
bundle2-push: provide transaction to reply unbundler
bundles: do not overwrite existing backup bundles (BC)
changegroup: introduce "raw" versions of some commands
changelog: handle writepending in the transaction
changelog: register changelog.i.a as a temporary file
changelog: rely on transaction for finalization
changelog: rework the delayupdate mechanism
cmdserver: use given streams as pipe channels like other commands
copyfile: allow optional hardlinking
debugrevlog: fix computing chain length in debugrevlog -d
diff: add a --noprefix option
dispatch: only check compatibility against major and minor versions (BC)
extdiff: avoid unexpected quoting arguments for external tools (issue4463)
filectx: fix annotate to not directly instantiate filectx
generate-working-copy-states: accept depth arguments on command line
getbundle: send highest changegroup format supported by both side
graphlog: add a way to test the 'groupbranchiter' function
groupbranchiter: allow callers to select the first branch
groupbranchiter: support for non-contiguous revsets
hg.clone: set 'stream' depending on whether --pull was requested or not
hghave: we now support Python 2.7.9's ssl for https
hgk: forward command output to ui.fout consistently
highlight: ignore Unicode's extra linebreaks (issue4291)
https: support tls sni (server name indication) for https urls (issue3090)
ignore: resolve ignore files relative to repo root (issue4473) (BC)
linkrev-filelog: handle filtered linkrev with no visible children (issue4307)
linkrev: also adjust linkrev when bootstrapping annotate (issue4305)
linkrev: use the right manifest content when adjusting linrev (issue4499)
manifest: add optional recording of clean entries to diff
memctx: calculate manifest correctly with newly-removed files (issue4470)
memctx: fix manifest for removed files (issue4470)
obsstore: disable garbage collection during initialization (issue4456)
readmarkers: use unpacker for fixed header
record: don't honor format-changing diffopts (issue4459)
remove: support remove with explicit paths in subrepos
share: add option to share bookmarks
share: fix source repo lookup on Windows
subrepo: add full revert support for git subrepos
subrepo: add partial diff support for git subrepos
subrepo: add revert support without backup for git subrepos
subrepo: add status support for ignored files in git subrepos
subrepo: fix git subrepo ui argument
tests: adapt glob pattern to fix test with NetBSD's sh(1) (issue4484)
tests: run 'cvs init' only on non-existent directories (issue4482)
transplant: properly skip empty changeset (issue4423)
win32: fix win32 installers generation
win32: remove Mercurial.ini file from Inno Setup installer (issue4435)

New in Mercurial 3.2.4 (Jan 5, 2015)

New in Mercurial 3.2.3 (Dec 19, 2014)

New in Mercurial 3.2.2 (Dec 10, 2014)

New in Mercurial 3.2.1 (Nov 12, 2014)

New in Mercurial 3.2 (Nov 3, 2014)

commands:
amend: abort early if no username is configured with evolve enabled (issue4211)
amend: fix amending rename commit with diverged topologies (issue4405)
annotate: rewrite long short-circuit statement by if-elif-else
bookmark: make the search for divergent names more robust
bookmarks: allow pushkey if new equals current
bookmarks: explicitly track identical bookmarks
bookmarks: fix divergent bookmark path normalization
bookmarks: inform transaction-related hooks that some bookmarks were moved
branches: include active, closed and current flags in template output
clone: copy '.hg/bookmarks' during copy clone
clone: explicitly push bookmarks when cloning from local to remote
clone: fix copying bookmarks in uncompressed clones (issue4430)
clone: for local clones, copy branchcache from the right location (issue4286)
clone: for local clones, copy over filtered branchcaches as well (issue4286)
clone: properly mark branches closed with --uncompressed (issue4428)
clone: provide sample username = config entry in .hg/hgrc (issue4359)
commit: correctly check commit mutability during commit --amend
commit: add customizable committemplate config
config: give more fine-tuned sample hgrcs to this command
config: highlight parse error caused by leading spaces (issue3214)
files: add new command unifying locate and manifest functionality
graft: allow regrafting ancestors with --force (issue3220)
graft: make --force apply across continues (issue3220)
help: document that default hgweb style is called paper (issue4373)
help: update help for hgweb template and style (issue4373)
import: let --exact 'work' with --no-commit (issue4376)
locate: deprecate in favor of files
log: allow patterns with -f
log: do not hide the public phase in debug mode (BC)
log: rewrite default template to use labels (issue2866)
log: show phase in hg log -v with the phase template
merge-tools: add a 'premerge=keep-merge3' config option
merge: use bid merge by default (BC)
merge: support three labels when using conflict markers
parents: deprecate the parents commands
pull: perform bookmark updates in the transaction
push: update bookmarks within the remote lock
push: wrap local phase movement in a transaction
pushbookmark: do not attempt to update bookmarks if the push failed (BC)
status: make 'hg status --rev' faster when there are deleted files
tag: properly abort if an unknown or ignored .hgtags is present
core:
alias: expand "$@" as list of parameters quoted individually (BC) (issue4200)
dirstate: add exception when calling setparent without begin/end (API)
dirstate: wrap setparent calls with begin/endparentchange (issue4353)
hook: protect commit hooks against stripping of temporary commit (issue4422)
i18n: detect UI language without POSIX-style locale variable on Windows (BC)
localrepo: remove the 'pull' method (API)
localrepo: remove the 'push' method (API)
posix: implement readpipe using non-blocking I/O (issue4336)
revset: fix O(2^n) perf regression in addset
revset: have rev() drop out-of-range or filtered rev explicitly (issue4396)
setdiscovery: limit the size of all sample (issue4411)
ssl: only support TLS (BC)
ssl: only use the dummy cert hack if using an Apple Python (issue4410)
templater: fix ifcontains when list is a string (issue4399)
extensions:
convert: add support for deterministic progress bar on scanning phase
convert: add support to detect git renames and copies
eol: fix crash when handling removed files
histedit: add "roll" command to fold commit data and drop message (issue4256)
largefiles: add examination of exec bit in "hg status --rev REV" case
largefiles: keep largefiles from colliding with normal one during linear merge
largefiles: restore R status of removed largefiles correctly at "hg rollback"
largefiles: restore standins from non branch-tip parent at rollback correctly
largefiles: unlink standins not known to the restored dirstate at rollback
mq: write '# Parent ' lines with two spaces like export does (BC)
mq: write headers for new HG patches in the same order as export (BC)
shelve: don't delete "." when rebase is a no-op (issue4398)
hgweb:
hgweb: disable SSLv3 serving (BC)
hgweb: refresh repository using URL not path (issue4323)

New in Mercurial 3.1.2 (Oct 2, 2014)

New in Mercurial 3.1.1 (Sep 15, 2014)

New in Mercurial 3.1 (Aug 8, 2014)

New in Mercurial 3.1 RC (Aug 2, 2014)

backout: accept '--edit' like other commands creating new changeset
bash_completion: add -l|--list support for shelve
bookmarks: avoid deleting primary bookmarks on rebase
bookmarks: improve the bookmark help (issue4244)
branch: add debug message for branch cache write failure
bugzilla: stop trying to cache setup across hook invocation
build: initial support for in-tree autobuilding recipes
buildrpm: include release version in .tar.gz name
bundle2: add pushkey support
bundle2: fix bundle2 pulling all revs on empty pulls
commit: make commit message shown in text editor customizable by template
config: allow 'user' in .hgrc ui section (issue3169)
convert: detect removal of ".gitmodules" at git source revisions correctly
convert: drastically speed up git conversions
convert: mercurial source: convert global tags only - not local tags
convert: only consider shamap revisions converted if they still exists
convert: update the transplant, rebase and graft references in 'extra'
diff: add nobinary config to suppress git-style binary diffs
discovery: if a push would create a new head, mention the bookmark name if any
filemerge: add internal:tagmerge merge tool
filemerge: use 'basic' as the default of '[ui] mergemarkers' for safety
filemerge: use non-minimal conflict marker regions (BC)
gpg: accept '--edit' like other commands creating new changeset
graft: customize graft conflict markers (BC)
help: always show command help with -h (issue4240)
help: suggest keyword search when no topic is found
histedit: respect revsetalias entries (issue4311)
import: add --partial flag to create a changeset despite failed hunks
largefiles: avoid unnecessary creation of .hg/largefiles when opening lfdirstate
largefiles: include largefiles when doing log on a directory (issue4241)
largefiles: show also how many data entities are outgoing at "hg outgoing"
largefiles: use "normallookup", if "mtime" of standin is unset
log: allow revset for --follow to be lazily evaluated
log: do not use exact matcher for --patch --follow without file (issue4319)
log: make --patch --follow work inside a subdirectory
make: add a basic osx mpkg target
merge: add conflict marker formatter (BC)
merge: define conflict marker labels in filemerge()
mergetools.hgrc: add minimal configuration for editmerge
packaging: move output directory from build/ to packages/
pager: add attend- option
patchbomb: includes series information in the header
pull: when remote supports it, pull phase data alongside changesets
purge: add options for deleting only files or only directories
push: use bundle2 to push phases when available
qfold: allow to specify '--message/'--logfile' and '--edit' at the same time
qimport: record imported revs incrementally (issue3874)
qrefresh: allow to specify '--message/'--logfile' and '--edit' at the same time
rebase: specify custom conflict marker labels for rebase (BC)
resolve: abort when not applicable (BC)
resolve: don't abort resolve -l even when no merge is in progress
resolve: print message when no unresolved files remain (issue4214)
resolve: print warning when no work performed (issue4208)
revset: maintain ordering when subtracting from a baseset (issue4289)
revset: optimize baseset.sub (issue4313)
setup: fixed for Pythons which don't have a CFLAGS
setup: make Xcode 5.1 check less specific
shelve: accept '--edit' like other commands creating new changeset
strip: drop -b/--backup option (BC)
strip: remove bookmarks after strip succeed (issue4295)
templatefilter: add splitlines function
templatekw: add 'currentbookmark' keyword to show current bookmark easily
templatekw: add 'subrepos' keyword to show updated subrepositories
templater: introduce startswith function
templater: introduce word function
templates: escape NUL bytes in jsonescape (issue4303)
update: introduce --tool for controlling the merge tool
update: show message when a bookmark is activated by update
update: specify custom conflict markers for update (BC)
update: when deactivating a bookmark, print a message
version: show enabled extensions (issue4209)
version: don't traceback if no extensions to list (issue4312)
vim: use try catch in vim plugin to avoid conflicts

New in Mercurial 3.0.2 (Jul 19, 2014)

New in Mercurial 3.0.1 (Jul 2, 2014)

New in Mercurial 3.0 (May 2, 2014)

Core features:
cat: support explicit paths in subrepos
cmdserver: allow starting server without repository
clone: abort if default destination has no meaningful name (BC)
clone: put streaming clones in a transaction
color: add debugcolor command (issue4094)
color: allow color keywords to be used directly in template
commands: add -T as alternative to --template
commands: hg debuginstall checks missing templates (issue4151)
commit: --edit/-e allows editing commit message supplied through other means
config: add initial implementation of --edit (with --global and --local flags)
debuginstall: add Python information to debuginstall output (issue4128)
demandimport: support HGDEMANDIMPORT=disable to disable demandimport
hgweb: add metadata to atom and rss feed entries
http: reuse authentication info after the first failed request (issue3567)
log: change implementation to use graphlog code
push: provide a hint when no paths are configured (issue3692)
require: provide a link to a wiki page as well as suggesting upgrade
revset: new implementation with incremental evaluation
revset: try to handle hyphenated symbols if lookup callback is available
revset: add 'only()' revset
sshpeer: only print out 'running ssh' messages in debug mode (BC)
template: add ifcontains template function
template: add pad function for padding output
template: add revset() template function
template: add shortest(node) template function
template: add flexible -T option
win32: improve the performance of win32.unlink() over CIFS
Extension features:
blackbox: log events related to branch cache
convert: avoid updating tags when there is nothing new
convert: compare tags from all heads instead of just one
convert: replace old sha1s in the description
extensions: mark win32text deprecated
extensions: remove interhg
extensions: remove the inotify extension (BC)
histedit: select the lowest rev when looking for a root in a revset (BC)
journal: report parsing errors on recover/rollback (issue4172)
qimport: allow importing URLs
Fixes:
backout: don't limit ancestry check to a single ancestor
backout: improve confusing 'cannot backout change on a different branch' abort
caches: invalidate store caches when lock is taken
cmdserver: forcibly use L channel to read password input (issue3161)
cmdserver: reload mq on each runcommand request to avoid corruption
diff: use second filename for --stat reporting on git patches (issue4221)
dirstate: report bad subdirectories as match.bad, not just a warning (BC)
extensions: use normpath to allow trailing '\' on Windows (issue4187)
fncache: clean up fncache during strips
largefiles: changed overridelog to work with graphlog
largefiles: don't prompt when one side of merge was changed but didn't change
largefiles: remove directories emptied after their files are moved (issue3515)
parsers: fail fast if Python has wrong minor version (issue4110)
phases: apply publishing enforcement for "serve" source
revlog: deal with chunk ranges over 2G on Windows (issue4215)
setup.py: fix C extension compilation issue with OS X 10.9 and Xcode 5.1
subrepo: check return code for git push (issue4223)
Experimental features:
bundle2: experimental support for bundle2
merge: experimental implementation of bid merge
merge: tell when .ancestor picks one of multiple common ancestors heads

New in Mercurial 2.9.2 (Apr 18, 2014)

New in Mercurial 2.9.1 (Mar 4, 2014)

New in Mercurial 2.9 (Feb 3, 2014)

New in Mercurial 2.8.2 (Jan 3, 2014)

New in Mercurial 2.8.1 (Dec 11, 2013)

New in Mercurial 2.8 (Dec 2, 2013)

New in Mercurial 2.8 RC (Oct 22, 2013)

9mail: new script to add support for Plan 9 upas/marshal email wrapper
addremove: don't do full walks
convert: introduce hg.revs to replace hg.startrev and --rev with a revset
convert: update source shamap when using filemap, just as when not using filemap
factotum: clean up keychain for multiple hg repository authentication
get-with-headers: don't block indefinitely if the server had an internal error
hgweb: add revset syntax support to search
hgweb: always run search when a query is entered (BC)
hgweb: show full date in rfc822 format in tooltips at shortlog page
histedit: abort if there are multiple roots in "--outgoing" revisions
httpconnection: properly inject ssl_wrap_socket into httpclient (issue4038)
log: make file log slow path usable on large repos
merge: let the user choose to merge, keep local or keep remote subrepo revisions
mq: extract strip function as its standalone extension (issue3824)
mq: look for modified subrepos when checking for local changes
paper: add infinite scrolling to graph by calling ajaxScrollInit at the page
paper: call ajaxScrollInit in shortlog
patch: Fix nullid for binary git diffs (issue4054)
plan9: update util.py for cpython 2.7 build
progress: stop getting stuck in a nested topic during a long inner step
proxy: allow wildcards in the no proxy list (issue1821)
pull: for pull --update with failed update, print hint if any
rebase: handle bookmarks matching revset function names (issue3950)
rebase: preserve active bookmark when not at head (issue3813)
rebase: preserve metadata from grafts of changes (issue4001)
rebase: preserve working directory parent (BC)
rebase: remove bailifchanged check from pullrebase (BC)
shelve: add a shelve extension to save/restore working changes
sslutil: add a config knob to support TLS (default) or SSLv23 (BC) (issue4038)
templatefilters: add short format for age formatting
templater: support using templates with non-standard names from map file
ui: send password prompts to stderr again (issue4056)
update: add error message for dirty non-linear update with no rev

New in Mercurial 2.7.2 (Oct 3, 2013)

New in Mercurial 2.7.1 (Sep 6, 2013)

New in Mercurial 2.7 RC (Aug 2, 2013)

This release contains an important fix for a merge ancestor calculation regression in the 2.6 series:
ancestor: decrement ninteresting correctly (issue3984)
bookmarks: allow bookmark command to take multiple arguments
bookmarks: pull --update updates to active bookmark if it moved (issue4007)
bookmarks: update only proper bookmarks on push -r/-B (issue 3973)
changegroup: fix fastpath during commit
checklink: work around sshfs brain-damage (issue3636)
churn: split email aliases from the right
commands: add checks for unfinished operations (issue3955)
commit: enable --secret option
convert: catch empty origpaths in svn gettags (issue3941)
convert: fix bad conversion of copies when hg.startrev is specified
convert: handle changeset sorting errors without traceback (issue3961)
hgweb: fix incorrect way to count revisions in log (issue3977)
hgweb: run search instead of showing wrong error for ambigious identifier
histedit: don't clobber working copy on --abort if not on histedit cset
histedit: refuse to edit history that contains merges (issue3962)
import: cut commit messages at --- unconditionally (issue2148)
largefiles: overridematch() should replace the file path instead of extending (issue3934)
log: add a log style that is default+phase (issue3436)
paper: add line wrapping switch to file source view
paper: code selection without line numbers in file source view
paper: highlight line which is linked to in source view
progress: respect HGPLAIN
rebase: allow aborting when descendants detected
rebase: continue abort without strip for immutable csets (issue3997)
rebase: don't clobber wd on --abort when we've updated away (issue4009)
revert: make backup when unforgetting a file (issue3423)
revlog: handle hidden revs in _partialmatch (issue3979)
rollback: mark as deprecated
splicemap: improve error handling when parsing (issue2084)
splicemap: support paths with spaces in splicemap (issue3844)
sslutil: force SSLv3 on Python 2.6 and later (issue3905)
summary: augment output with info from extensions
templater: add strip function with chars as an extra argument
log: show style list when unknown style specified
tip: deprecate the tip command
update: add tracking of interrupted updates (issue3113)
worker: check problem state correctly (issue3982)
worker: properly report errors from worker processes (issue3982)

New in Mercurial 2.6.3 (Jul 2, 2013)

New in Mercurial 2.6.2 (Jun 3, 2013)

New in Mercurial 2.6.1 (Jun 3, 2013)

New in Mercurial 2.6 RC (May 2, 2013)

addremove: improve performance
amend: support amending merge changesets (issue3778)
ancestor: a new algorithm that is faster for nodes near tip
annotate: increase refcount of each revision correctly (issue3841)
applyupdates: assign variable before we try to use it (issue3855)
archive: raise error.Abort if the file pattern matches no files
bash_completion: allow remove to complete normal files
blackbox: new extension
bookmarks: don't allow integers as bookmark/branch/tag names
bookmarks: allow (re-)activating a bookmark on the current changeset
bookmarks: allow moving a bookmark forward to a descendant
bookmarks: moving the active bookmark deactivates it
bookmarks: fix bug that activated a bookmark even with -r passed
bookmarks: resolve divergent bookmark when moving across a branch
bookmarks: resolve divergent bookmarks when moving active bookmark forward
commit: allow closing "non-head" changesets
commit: show active bookmark in commit editor helper text
config: discard "%unset" values defined in the other files read in previously
convert/git: catch errors from modern git-ls-remote (issue3428)
convert: add closesort algorithm to mercurial sources
dates: support 'today' and 'yesterday' in parsedate (issue3764)
destroyed: invalidate phraserevs cache in all case (issue3858)
diff: fix binary file removals in git mode
dirstate: performance improvements
dispatch: exit with status 1 for an InterventionRequired exception (BC)
dispatch: print 'abort:' when a pre-command hook fails (BC)
export: clobber files with -o (BC) (issue3652)
export: export working directory parent by default
export: show 'Date' header in a format that also is readable for humans
extensions: obsolete and remove interhg extension
filesets: add eol predicate
grep: use re2 if possible
hgk: add support for phases
hgk: don't use fixed format for dates
hgk: update backgroud colour when Ttk is available
hgweb: generate HTML documentation
hgweb: teach archive how to download a specific directory or file
histedit: allow "-" as a command file
histedit: handle multiple spaces between action and hash (issue3893)
histedit: make "hg histedit" sensitive to branch in URL
histedit: properly handle --continue on empty fold
histedit: support editing of the first commit (issue3767)
httppeer: avoid large dumps when we don't see an hgweb repo
icasefs: rewrite case-folding collision detection (issue3452)
import: don't rollback on failed import --exact (issue3616)
largefiles: don't cache largefiles for pulled heads by default
largefiles: improve reuse of HTTP connections
largefiles: introduce lfpull command for pulling missing largefiles
largefiles: introduce pull --lfrev option
largefiles: introduce pulled() revset expression for use in --lfrev
largefiles: quiet (and document) undefined name errors (issue3886)
largefiles: stat all largefiles in one batch before downloading
largefiles: use repo.wwrite for writing standins (issue3909)
log: fix behavior with empty repositories (issue3497)
merge: apply non-interactive working dir updates in parallel
mergetools: avoid losing the merged version with meld
mergetools: vimdiff issues a warning explaining how to abort
mq: comply with filtering when injecting fake tags (issue3812)
mq: do not inherit settings form base repo in mqrepo (Fixes issue2358)
outgoing: fix possible filtering crash in outgoing (issue3814)
pager: catch ctrl-c on exit (issue3834)
date: understand "now" as a shortcut for the current time
parsers: a C implementation of the new ancestors algorithm
pull: list bookmarks before pulling changesets (issue3873)
push: make locking of source optional (issue3684)
rebase: check no-op before checking phase (issue3891)
rebase: fix --collapse when a file was added then removed
record: abort on malformed patches instead of crashing
revset: change ancestor to accept 0 or more arguments (issue3750)
revset: don't abort when regex to tag() matches nothing (issue3850)
sadclown: another test failure eluded bos
scheme: don't crash on invalid URLs
scmutil: rewrite dirs in C, use if available
setup: make error message for missing Python headers more helpful
smtp: use 465 as default port for SMTPS
smtp: verify the certificate of the SMTP server for STARTTLS/SMTPS
sshpeer: store subprocess so it cleans up correctly
sslutil: abort if peer certificate is not verified for secure use
subrepo: clone of git sub-repository creates incorrect git branch (issue3870)
subrepo: do not push mercurial subrepos whose store is clean
subrepo: fix exception on revert when "all" option is omitted
summary: make "incoming" information sensitive to branch in URL (issue3830)
summary: make "outgoing" information sensitive to branch in URL (issue3829)
summary: show active bookmark even if not at current changeset
tags: update tag type only if tag node is updated (issue3911)
templatekw: add default styles for hybrid types (issue3887)
templater: add get() function to access dict element (e.g. extra)
unionrepo: read-only operations on a union of two localrepos
win32: use explicit path to "python.exe" only if it exists

New in Mercurial 2.5.4 (Apr 5, 2013)

New in Mercurial 2.5.3 (Apr 3, 2013)

New in Mercurial 2.5.2 (Mar 7, 2013)

New in Mercurial 2.5.1 (Mar 7, 2013)

New in Mercurial 2.5 (Feb 2, 2013)

Core features:
branchmap: improved performances
bundle: add revset expression to show bundle contents (issue3487)
dirstate: implement unix statfiles in C
hgweb: add (Atom) subscribe links to the repository index
hgweb: add "URL breadcrumbs"
hgweb: add branches RSS and Atom feeds
hgweb: secret changeset are excluded from html view (3614 )
serve: use chunked encoding in hgweb responses
pathencode: implement both basic and hashed encoding in C
subrepo: append subrepo path to subrepo error messages
validate: check for spurious incoming filelog entries
hgweb: allow hgweb's archive to recurse into subrepos
Changeset Evolution:
Major progress toward ChangesetEvolution were done.
hidden changesets are now properly ignored by all commands
a global --hidden flag is added to give access to hidden changesets
rewriting a changeset but not its descendants is now allowed; this leaves unstable changeset behind
we now detect *divergent* changesets. The third and last kind of obsolescence related troubles. divergent() revset is added
a troubled() revset have been added
branchmap for of *visible* and *served* changeset are now cached on disk. This is a major performance improvements
performance improvements of most evolution related algorithm
Extension features:
color: add template label function
convert: add config option to use the local time zone
convert: add support for converting git submodule (issue3528)
hgk: use Ttk instead of plain Tk
inotify: don't fall over just because of a dangling symlink
largefiles: fix revert removing a largefile from a merge
largefiles: fix update from a merge with removed files
largefiles: make log match largefiles in the non-standin location too
largefiles: make update with backup files in .hglf slightly less broken
largefiles: rename 'admin' to more descriptive 'lfstoredir
rebase: performance improvements
rebase: rebase set with multiple roots are now handled by the --rev option
record: use patch.diffopts to account for user diffopts
share: always set default path to work with subrepos (issue3518)
zsh_completion: add completion of branch names
Fixes:
commands: 'hg bookmark NAME' should work even with ui.strict=True
copies: do not track backward copies, only renames (issue3739)
destroyed: keep the filecache in sync with __dict__ (issue3335, issue3693, issue3743)
grep: don't search past the end of the searched string
hgweb: properly returns 404 for unknown revision (instead of 500)
histedit: proper phase conservation (issue3724)
histedit: prevents obsolescence cycle (issue3681)
hook: disable demandimport before importing hooks
mq: don't fail when removing a patch without patch file from series file
mq: fix qpop of working directory parent patch when not at qtip
zeroconf: use port from server instead of picking port from config (issue3746)
update: update to current bookmark if it moved out from under us (issue3682)
bookmarks: show active bookmark even if not at working dir
largefiles: let wirestore._stat return stats as expected by remotestore verify
largefiles: adapt verify to batched remote statlfile (issue3780)
largefiles: don't allow corruption to propagate after detection
largefiles: don't verify largefile hashes on servers when processing statlfile
largefiles: allow use of urls with #revision
largefiles: fix commit when using relative paths from subdirectory
largefiles: fix cat when using relative paths from subdirectory
histedit: prevent parent guessed via --outgoing from being a revset (issue3770)
rebase: delete divergent bookmarks on destination (issue3685)
hgwebdir: use web.prefix when creating url breadcrumbs (issue3790)
subrepo: allow skipping courtesy phase sync (issue3781)
merge: .hgsubstate is special as merge destination, not as merge source
merge: improved handling of symlinks

New in Mercurial 2.4.2 (Jan 3, 2013)

New in Mercurial 2.4.1 (Dec 4, 2012)

New in Mercurial 2.4 (Nov 2, 2012)

Core features:
amend: support for ChangesetEvolution if enabled
bookmarks: deactivate current bookmark if no name is given
bookmarks: teach the -r option to use revsets
bookmarks: disallow bookmarks named 'tip', '.', or 'null'
clone: substantial speedup to clone on repo with a lots of heads (issue3378)
clone: activate bookmark specified with --updaterev
clone: update to @ bookmark if it exists
log: substantial speedup for untracked files (issue1340)
revsets: add branchpoint() function
resolve: commit the changes after each item resolve (issue3638)
subrepo, hghave: use "svn --version --quiet" to determine version number
subrepo: setting LC_MESSAGES only works if LC_ALL is empty or unset
templatefilters: add parameterized date method
templatefilters: add parameterized fill function
templatefilters: avoid traceback caused by bogus date input (issue3344)
templatekw: add p1rev, p1node, p2rev, p2node keywords
templatekw: add parent1, parent1node, parent2, parent2node keywords
templater: abort when a template filter raises an exception (issue2987)
templater: add if/ifeq conditionals
templater: add sub() function
templating: make new-style templating features work with command line lists
bookmarks: take ChangesetEvolution into account when updating (issue3561)
speedup various operation related to ChangesetEvolution
add detection of changeset bumped by ChangesetEvolution
Extension features:
color: add additional changeset.phase label to log.changeset and log.parent
color: enabled color support for export command (issue1507)
color: support for all grep fields
contrib: add a commit synthesizer for reproducing scaling problems
histedit: refuse to edit public changeset
histedit: replaces patching logic by merges
histedit: support for ChangesetEvolution if enabled
largefiles: always create the cache and standin directories when cloning
largefiles: distinguish "no remote repo" from "no files to upload" (issue3651)
largefiles: fix a traceback in lfconvert if a largefile is missing (issue3519)
mq: improve qqueue message with patches applied (issue3036)
mq: update bookmarks during qrefresh
notify: support revset selection for subscriptions
rebase: support for ChangesetEvolution if enabled
record: checks for valid username before starting recording process (issue3456)
record: fix display of non-ASCII names in chunk selection
Fixes:
amend: fix incompatibity between logfile and message option (issue3675)
amend: wrap all commit operations in a single transaction
bookmarks: abort when incompatible options are used (issue3663)
bookmarks: avoid redundant creation/assignment of "validdests" in "validdest()"
bookmarks: check bookmark format during rename (issue3662)
bookmarks: when @ bookmark diverges, don't double the @ sign (BC)
bookmark: prevent crashing when a successor is unknown locally (issue3680)
clone: activate @ bookmark if updating to it
clone: don't %-escape the default destination (issue3145)
clone: make sure to use "@" as bookmark and "default" as branch (issue3677) (BC)
clone: print bookmark name when clone activates a bookmark
commands: don't infer repo for commands like update (issue2748)
convert: normalize paths in filemaps (issue3612)
dirstate: handle large dates and times with masking (issue2608)
dirstate: handle dangling junctions on windows (issue2579)
filemerge: use util.shellquote when calling merge (issue3581)
hgweb: make the escape filter remove null characters (issue2567)
http2: make it possible to connect w/o ssl on port 443
icasefs: make case-folding collision detection as deletion aware (issue3648)
largefiles: don't copy largefiles from working dir to the store while converting
largefiles: respect the rev when reading standins in copytostore() (issue3630)
largefiles: use 'default' instead of 'default-push' when pulling (issue3584)
mq: fix qrefresh case sensitivity (issue3271)
patchbomb: respect --in-reply-to for all mails if no intro message is sent
remove: don't return error on directories with tracked files
revset: accept @ in unquoted symbols (issue3686)
scmutil: add mustaudit delegation to filtervfs (issue3673)
subrepo: only do clean update when overwrite is set (issue3276)
subrepo: subrepo isolation, pass baseui when cloning a new subrepo (issue2904)
update: check for missing files with --check (issue3595) (BC)
url: use open and not url.open for local files (issue3624)
verify: fix all doubled-slash sites (issue3665)
wireproto: fix pushkey hook failure and output on remote http repo

New in Mercurial 2.3.2 (Oct 3, 2012)

New in Mercurial 2.3.1 (Sep 5, 2012)

New in Mercurial 2.3 (Aug 7, 2012)

Core features:
help: add --keyword (-k) for searching help
hgweb: side-by-side comparison functionality
log: support --graph without graphlog extension
push: accept revset argument for --rev
merge: bookmarks will no longer automatically merge with unnamed heads or other bookmarks. Instead it picks heads with diverging bookmarks.
introduce ChangesetsObsolescence concept (experimental)
bookmarks: allow existing remote bookmarks to become heads when pushing
bookmarks: pull new bookmarks from remote by default (backward incompatible change)
bookmarks: delete divergent bookmarks on merge
bisect: set HG_NODE when runing a command
graft: allow -r to specify revisions
graft: implement --log (issue3438)
graft: remark on empty graft
hooks: print out more information when loading a python hook fails
identity: show trailing '+' for dirty subrepos (issue2839)
incoming/outgoing: handle --graph in core
merge: warn about file deleted in one branch and renamed in other (issue3074)
Mercurial can now identify third-party extensions as sources of tracebacks
outgoing: accept revset argument for --rev
performance improvement on branchy repo: incrementaly update branchcache
performance improvement on huge file tree: add a C function to pack the dirstate
performance improvement for huge .hgignore: process regex with re2 bindings if available
revset: add "diff" field to "matching" predicate
revset: add "converted" predicate to find converted changesets
revset: add "origin" and "destination" predicates, to get graft, transplant or rebase origins or destinations.
revset: add "extra" predicate to match changesets extra fields (issue2767)
revset: add pattern matching to "bookmarks/branch/extra/tag/user" predicated
Extension features:
acl: use of "!" prefix in user or group names
children: mark extension as deprecated
convert/svn: handle non-local svn destination paths (issue3142)
convert: accept Subversion 'file:///c:/svnrepo' syntax on Windows
fetch: mark extension as deprecated
graphlog: feature is now into core
histedit: new extension for interactive history editing
hg-ssh: add read-only flag
largefiles: add --all-largefiles flag to pull and clone (issue3188)
largefiles: improve performance by batching statlfile requests when pushing a
largefiles repo (issue3386)
largefiles: no longer attempt to clone all largefiles to non-local destinations
largefiles: optimize performance when updating (issue3440)
largefiles: support revsets for cat, outgoing --large and revert
mq: introduce qpush/qpop/qgoto --keep-changes
strip: introduce -B option to remove a bookmark
rebase: allow collapsing branches in place (issue3111)
rebase: make --dest understand revsets
rebase: drop the infamous --detach option: rebase now behave with --source and --rev as expectable. It may no longer add second parent to rebased changeset (backward compatible change)
transplant: handle non-empty patches doing nothing (issue2806)
transplant: manually transplant pullable changesets with --log
Fixes:
bisect: fix O(n**2) behaviour (issue3382)
bookmarks: fix push of moved bookmark when creating new branch heads
case insensitive file system can no longer be confused by -R on (issue2167)
copies: one fix related to directory rename detection (issue3511)
convert: check for failed svn import in debugsvnlog and abort cleanly
convert: ignore svn:executable for subversion targets without exec bit support
convert: keep branch switching merges with ancestors (issue3340)
convert: make filemap renames consistently override revision renames
debugrevlog: fix a bug with empty repository (issue3537)
graphlog: don't truncate template value at last \n
httprepo: ensure Content-Type header exists when pushing data
largefiles: fix a traceback when addremove follows a remove (issue3507)
largefiles: fix a traceback when archiving a subrepo in a subrepo
largefiles: fix addremove when largefile is missing (issue3227)
largefiles: fix addremove with -R option
largefiles: fix exception hack for i18n (issue3197)
largefiles: fix path handling for cp/mv (issue3516)
largefiles: archive -S now store largefiles instead of standins
largefiles: fix hg addremove when already removed largefile exists (issue3364)
merge: do not warn about copy and rename in the same transaction (issue2113)
mq: add ".hgsubstate" to patch target list only if it is not listed up yet
mq: create patch file after commit to import diff of ".hgsubstate" at qrefresh
pager: work around bug in python 2.4's subprocess module (issue3533):
revlog: zlib.error are no longer sent to the user (issue3424)
tag: don't allow tagging the null revision (issue1915)

New in Mercurial 2.2.3 (Jul 2, 2012)

New in Mercurial 2.2.2 (Jun 2, 2012)

addremove: document default similarity behavior (issue3429)
alias: inherit command optionalrepo flag (issue3298)
amend: preserve extra dict (issue3430)
bisect: save current state before running a command
bugzilla: fix transport initialization on python 2.4
build: fix hgrc manpage building with docutils 0.9
bundle: make bundles more portable (isue3441)
changelog: ensure that nodecache is valid (issue3428)
hg-ssh: exit with 255 instead of -1 on error
hgweb: fix filediff base calculation
largefiles: fix "hg status dir" missing regular files (issue3421)
largefiles: fix deletion of multiple missing largefiles (issue3329)
largefiles: follow normal codepath for addremove if non-largefiles repo (issue3249)
largefiles: in putlfile, ensure tempfile's directory exists prior to creation
largefiles: use wlock for lfconvert (issue3444)
localrepo: clear _filecache earlier to really force reloading (issue3462)
match: make 'match.files()' return list object always
mq: add --no-backup for qpush/qpop/qgoto
mq: backup local changes in qpop --force (issue3433)
mq: backup local changes in qpush --force
mq: qimport need wlock for --push - do that after releasing lock
osutil: handle deletion race with readdir/stat (issue3463)
pager: check if signal.SIGPIPE exists
pager: preserve Hg's exit code (and fix Windows support) (issue3225)
pager: remove quiet flag
paper, monoblue: link correctly to lines in annotate view
parsers: fix refcount bug on corrupt index
patch: fix segfault against unified diffs which start line is zero
patch: keep patching after missing copy source (issue3480)
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
revpair: handle odd ranges (issue3474)
revset: explicitely tag alias arguments for expansion
revset: fix infinite alias expansion detection
revset: fix traceback for bogus revisions in id(rev)
revset: make matching() preserve input revision order
scmutil: seen.union should be seen.update (issue3476)
subrepo: do not traceback on .hgsubstate parsing errors
subrepo: ignore blank lines in .hgsubstate (issue3424)
tag: run commit hook when lock is released (issue3344)
templater: handle SyntaxError when parsing ui.logtemplate
util: fix bad variable use in bytecount introduced by f0f7f3fab315
win32: fix encoding handling for registry strings (issue3467)

New in Mercurial 2.2.1 (May 4, 2012)

New in Mercurial 2.2 (May 2, 2012)

Core features:
commit: add --amend option
fileset: add "subrepo" fileset symbol
graft: add --dry-run support (issue3362)
hgweb: add support for branch width and color settings
hgweb: add block numbers to diff regions and related links
hgweb: support multi-level repository indexes by enabling descend and collapse
merge: improve performance with lots of unknown files
parsers: incrementally parse the revlog index in C
plan9: add support for plan9
push/pull: improve performance for partial transfers
push: decompress in larger chunks for better performance on the server
clone: add server config option to prefer uncompressed clone
revert: add support for reverting subrepos
revset: add "matching" keyword
store: speed up read and write of large fncache files
ui: optionally quiesce ssl verification warnings on python 2.5
Extension features:
bugzilla: add xmlrpcemail submission for Bugzilla 3.6 email interface
bugzilla: allow change comment to mark bugs fixed
bugzilla: extract optional hours from commit message and update bug time
bugzilla: modify access interface to include new bug states
graphlog: add all log options to glog command
patchbomb: add --body flag to send patches as inline message body text
record: allow splitting of hunks by manually editing patches
transplant: permit merge changesets via --parent
Fixes:
alias: fix shell alias documentation (issue3374)
archive: make it work with svn subrepos (issue3308)
branchmap: server should not advertise secret changeset in branchmap (Issue3303)
clone: always close source repository (issue2491)
commit: abort on merge with missing files (BC)
config: discard UTF-8 BOM if found
convert/bzr: convert all branches (issue3229) (BC)
convert/bzr: expect unicode metadata, encode in UTF-8 (issue3232)
convert/bzr: handle empty bzr repositories (issue3233)
convert/bzr: ignore nested repos when listing branches (issue3254)
convert/svn: do not try converting empty head revisions (issue3347)
convert/svn: make svn sink work with svn 1.7
convert: support non-annotated tags in git backend
dirstate: preserve path components case on renames (issue3402)
export: catch exporting empty revsets (issue3353)
icasefs: make case-folding collision detection rename aware (issue3370)
inotify: catch SignalInterrupt during shutdown (issue3351)
journal: use tryread helper to backup files (issue3375)
largefiles: fix cat for largefiles (issue3352)
largefiles: fix status -S reporting of subrepos (issue3231)
largefiles: hide .hglf/ prefix for largefiles in hgweb
largefiles: notice dirty large files in a subrepo
largefiles: only update changed largefiles when transplanting
largefiles: optimize update speed by only updating changed largefiles
localrepo: add setparents() to adjust dirstate copies (issue3407)
mdiff: fix diff header generation for files with spaces (issue3357)
merge: check for untracked files more precisely (issue3400)
merge: fix unknown file merge detection for case-folding systems
patch: be more tolerant with "Parent" header (issue3356)
patch: be more tolerant with EOLs in binary diffs (issue2870)
patch: fix patch hunk/metdata synchronization (issue3384)
phase: when phase cannot be reduced, hint at --force and return 1 (BC)
posix: disable cygwin's symlink emulation (BC)
posix: ignore execution bit in cygwin (issue3301)
pure/osutil: use Python's msvcrt module (issue3380)
rebase: preserve mq series order, guarded patches (issue2849)
rebase: skip resolved but emptied revisions
revset: fix O(n**2) behaviour of bisect() (issue3381)
revset: fix adds/modifies/removes and patterns (issue3403)
revset: fix alias substitution recursion (issue3240)
subrepo/svn: abort on commit with missing file (issue3029)
subrepo/svn: fix checked out rev number retrieval (issue2968)
subrepo: fix default implementation of forget() (issue3404)
subrepo: rewrite handling of subrepo state at commit (issue2403)
templates/filters: extracting the user portion of an email address (BC)
transplant: do not rollback on patching error (issue3379)
update: fix case-collision with a clean wd and no --clean
update: make --check abort with dirty subrepos
update: use normal update path with --check (issue2450)
wireprotocol: use visibleheads as reference while unbundling (issue 3303)

New in Mercurial 2.1.2 (Apr 4, 2012)

New in Mercurial 2.1.1 (Mar 3, 2012)

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

New in Mercurial 2.1 (Feb 3, 2012)

Major features:
Changesets now have a phase attribute, which tracks what changesets are safe to modify (see Phases)
Core changes:
annotate: support diff whitespace filtering flags (issue3030)
bookmarks: automatically advance bookmark on bare update (BC) (issue2894)
bookmarks: shadow divergent bookmarks of foo with foo@n
copies: improved copy detection for diff and status
hooks: new priority specifier to control ordering
id: add command line options for handling ssh and https urls
push: propagate --new-branch and --ssh options when pushing subrepos
revset: add remote() predicate to lookup remote revisions
subrepo: support explicit add and forget of files in subrepos
Extension changes:
bugzilla: make XMLRPC interface support http and https access
largefiles: add --normal option to hg add (issue3061)
notify: add option for writing to mbox
rebase: add a "D" short option for detach
rebase: allow --detach when --rev is used
win32mbcs: allow win32mbcs extension to be enabled on cygwin platform
mq: add secret phase setting
Bug fixes:
hgcia: fix diffstat support
largefiles: add error checking to tags conversion (issue3092)
largefiles: add tests for uncovered codepaths (issue3092)
largefiles: check if largefile could be found when archiving (issue3193)
largefiles: correctly download new largefiles when merging
largefiles: correctly handle dirstate status when rebasing
largefiles: correctly handle newly added largefile on other side of merge
largefiles: display remote errors from putlfile (issue3123) (issue3149)
largefiles: don't reference uninitialized variable (issue3092)
largefiles: fix caching largefiles from an aliased repo (issue3212)
largefiles: fix confusion upon removal of added largefile (issue3176)
largefiles: fix inappropriate locking (issue3182)
largefiles: fix output of hg summary (issue3060)
largefiles: cache new largefiles for new heads when pulling
largefiles: implement addremove (issue3064)
largefiles: optimize performance of status on largefiles repos (issue3136)
largefiles: optimize status when files are specified (issue3144)
largefiles: remove empty directories upon update (issue3202)
largefiles: fix addremove when no largefiles are specified
largefiles: fix revert on missing largefile (issue3217)
largefiles: fix transplant for all cases (issue3192)
mail: use quoted-printable for mime encoding to avoid too long lines (issue3075)
merge: give a special message for internal:merge failure (issue3105)
rebase: reinstate old-style rev spec support for the source and base (issue3181)
ssh: quote remote paths (issue2983)
sslutil: abort properly if no certificate received for https connection
sslutil: show fingerprint when cacerts validation fails
status: support revsets with --change
subrepo: avoid syncing bookmarks twice on clone (issue3191)
tag: invalidate tag cache immediately after adding new tag (issue3210)
util: don't encode ':' in url paths
bundlerepo: try to find containing repo on creation (issue1812)
convert: subversion convert abort on revision not found (issue3205)
discovery: fix regression when checking heads for pre 1.4 client (issue3218)
merge: defer symlink flag merging to filemerge (issue3200)
patch: a little bit more robust line counting on diff --stat (issue3183)
push: return 1 if no changes found (issue3228)
qpush: avoid trying to manage existing history (issue2218)
revsets: include the correct first ancestor change for follow(file)
revsets: filesets now work correctly inside of revsets

New in Mercurial 2.0.2 (Feb 3, 2012)

New in Mercurial 2.0.1 (Feb 3, 2012)

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

New in Mercurial 2.0 (Nov 2, 2011)

Major features:
New core graft command (similar to transplant extension)
New largefiles extension
Core changes:
commit: abort when there are uncommitted subrepos, use the -S option to recurse
help: most commands now have usage examples with help -v
import: add --edit switch
revset: add more keywords for bisection
revert: introduce short option -C for --no-backup
log: add new 'bisect' style that prints the bisection status
hgweb: add a "web/logoimg" setting to customize the web logo image
subrepo: pull revisions on demand when archiving hg subrepos
Extension changes:
color: add styles for tags
convert: added bookmarks support in filemap
eol: add new eol.fix-trailing-newline setting
eol: eol.only-consistent can now be specified in .hgeol
export: add %m to file format string (first line of the commit message)
mq: make qqueue print current queue name
rebase: add --edit switch
rebase: add --rev option to rebase
rebase: allow rebase on ancestor
share: introduce unshare command
transplant: add --edit option
Bug fixes:
alias: don't shadow commands that we only partially matched (issue2993) (BC)
commit: suppress spurious new head message for duplicate commit (issue2893)
contrib: some support for named branches in zsh_completion (issue2988)
progress: add a changedelay to prevent parallel topics from flapping (issue2698)
rebase: allow rebase to ancestor (issue3010)
rollback: avoid unsafe rollback when not at tip (issue2998)
subrepo: fix git branch tracking logic (issue2920)
subrepo: fix repo relative path calculation for root directories (issue3033)
summary: show bookmarks separate from tags and note active mark (issue2892)
util: wrap lines with multi-byte characters correctly (issue2943)
verify: filter messages about missing null manifests (issue2900)
wireproto: do not call pushkey module directly (issue3041)
auth: fix realm handling with Python < 2.4.3 (issue2739)
diffstat: be more picky when marking file as 'binary' (issue2816)
dirstate: don't fail when dropping a not-tracked file (issue3080)
grep: correct handling of matching lines without line ending (issue3050)
hgweb: fix dynamic date calculation not working under Safari
mq: avoid data loss upon qfold + qmv (issue3058)
setup: set whole env for running hg even if .hg doesn't exist (issue3073)
windows: recompute flags when committing a merge (issue1802)
windows: sanity-check symlink placeholders

New in Mercurial 1.9.3 (Oct 3, 2011)

New in Mercurial 1.9.2 (Aug 27, 2011)

New in Mercurial 1.9.1 (Aug 2, 2011)

New in Mercurial 1.9.0 (Jul 2, 2011)

Major features:
New fileset file matching support
Improved remote changeset discovery
New command server mode to improve application integration
Experimental generaldelta storage scheme
Experimental new http client library
Command changes:
HGPLAIN: allow exceptions to plain mode, like i18n, via HGPLAINEXCEPT
manifest: add new option --all
aliases: add positional arguments to non-shell aliases
add: introduce a warning message for non-portable filenames (issue2756)
add: notify when adding a file that would cause a case-folding collision
bisect: new command to extend the bisect range (issue2690)
bookmarks: allow deactivating current bookmark with -i
bundle: update current bookmark to most recent revision on current branch
diff: make diff -c aware of revision sets
help: add -c/--command flag to only show command help (issue2799)
help: add -e/--extension switch to display extension help text
help: move hgignore man page into built-in help (issue2769)
http: correctly handle redirects from http to https
identify: list bookmarks for remote repositories
import: add --bypass option
paths: Add support for -q/--quiet
pushkey: add hooks for pushkey/listkeys
revset: add aliases
revset: add ^ and ~ operators from parentrevspec extension
revset: add a revset command to get bisect state
revset: add desc(string) to search in commit messages
revset: add follow(filename) to follow a filename's history across copies
revset: introduce filelog() to emulate log's fast path
revset: add a last() function
Web changes:
add bookmarks listing to raw style and summary pages
support alternate logo url
add base link to file log for paper and coal styles (issue2452)
paper, coal: display diffstat on the changeset page
elapsed time calculation dynamic (javascript)
provide diffstat and summary on the changeset page
Extension changes:
hgcia: handle URL like in notify (issue2406)
rebase: add -m/--message to rebase --collapse (issue2389)
Updating hgext.extdiff to use revsets
bash_completion: enable alias auto-complete
bugzilla: add XMLRPC interface
color: add support for terminfo-based attributes and color
convert/mtn: add support for using monotone's "automate stdio" when available
convert/svn: stop using svn bindings when pushing to svn
convert: add bookmark support for hg and git backends
convert: add svnrev, svnpath and svnuuid template keywords
extdiff: add repository root as a variable
graphlog: support more log command features with revsets
keyword: convert a verbatim block to a field list
keyword: offer additional datefilters when the extension is enabled
mq: add a 'mq()' revset predicate that returns applied mq csets
notify: send changesets on 'outgoing' hook, updated doc
progress: add speed format
rebase: add --tool argument for specifying merge tool
rebase: allow for rebasing descendants onto ancestors on different named branches
record: add an option to backup all wc modifications
record: add qrefresh -i/--interactive
record: add white space diff options
record: alias qrecord to qnew -i/--interactive
Bug fixes:
bookmarks: allow create/move bookmark without making it current (issue2788)
bookmarks: do not forward merged bookmark (issue1877)
changegroup: do not count closed new heads (issue2697)
config: handle comment lines in continuations (issue2854)
dispatch: propagate ui command options to the local ui (issue2523)
eol: make the hook check all new heads, not only tip (issue2666)
grep: don't print data from binary files for matches (issue2614)
http: report unexpected unparsable push responses (issue2777)
httprepo: handle large lengths by bypassing the len() operator
httprepo: long arguments support (issue2126)
httprepo: proper handling of invalid responses without content-type (issue2019)
httprepo: send URL redirection notices to stderr (issue2828)
localrepo: don't add deleted files to list of modified/added files (issue2761)
localrepo: ignore tags to unknown nodes (issue2750)
merge: drop resolve state for mergers with identical contents (issue2680)
patch: do not patch unknown files (issue752)
path_auditor: check filenames for basic platform validity (issue2755)
rebase: don't mark file as removed if missing in parent's manifest (issue2725)
rebase: preserve mq series order after rebasing (issue2849)
rebase: restore mq guards after rebasing (issue2107)
revset: report a parse error if a revset is not parsed completely (issue2654)
scmutil: improve path calculation for install-relative RC files (issue2841)
set NOT_CONTENT_INDEXED on .hg dir (issue2694)
sslutil: fall back to commonName when no dNSName in subjectAltName (issue2798)
subrepo: be more careful with deletions of .hgsub and .hgsubstate (issue2844)
subrepo: make stdin for svn a pipe for non-interactive use (issue2759)
subrepo: svn abort now depends on exit code (issue2833)
subrepo: be smarter about what's an absolute path (issue2808)
svn subrepo: attempt work around obstructed checkouts (issue2752)
svn subrepos: work around checkout obstructions (issue2752)
tags: catch more corruption during cache parsing (issue2779)
util: add Mac-specific check whether we're in a GUI session (issue2553)

New in Mercurial 1.8.4 (Jun 2, 2011)

New in Mercurial 1.8.3 (May 2, 2011)

New in Mercurial 1.8.2 (Apr 2, 2011)

New in Mercurial 1.8.1 (Mar 11, 2011)

New in Mercurial 1.8.0 (Mar 2, 2011)

New in Mercurial 1.7.5 (Feb 2, 2011)

New in Mercurial 1.7.4 (Feb 2, 2011)

New in Mercurial 1.7.3 (Jan 3, 2011)

New in Mercurial 1.7.2 (Dec 2, 2010)

New in Mercurial 1.7.1 (Nov 16, 2010)

New in Mercurial 1.7.0 (Nov 2, 2010)

1.1. Core:
filelog: improve cmp performances (issue2273)
patch: don't strip '#' lines from patch descriptions (issue2417)
patch: when native patching fails (ui.patch is not set), don't retry with an external tool
setup/hg: always load Mercurial from where it was installed.
setup: user-friendly error message if Python headers are missing
store: new unsupported and experimental parentdelta format (see UpgradeNotes)
store: encode first period or space in filenames (issue1713)
url: expand environment variables in [auth] settings (issue2328)
url: check validity (notBefore/notAfter) using OpenSSL (issue2407)
1.2. Commands:
addremove: use similarity 100 by default
alias: add support for shell command aliases starting with '!' (see [alias] in hgrc(5))
backout: add --tool argument for specifying merge tool
backout: backout linearly by default instead of branching and merging (use --merge to get the former behaviour)
dispatch: properly handle relative path aliases used with -R (issue2376)
init: expand destination url as a configured paths
log: do not --follow file that is deleted and recreated later (issue732)
merge: don't detect copies as "divergent renames", make error message more helpful
merge: add --tool argument to merge and resolve
merge: handle no file parent in backwards merge (issue2364)
tags: do not fail if tags.cache is corrupted (issue2444)
templater: add "hex" filter and "children" keywords (see hg help templating)
1.3. Subrepos:
support remapping of subrepository source paths (see [subpaths] in hgrc(5))
make add, diff, incoming, outgoing and status commands recurse into subrepos with --subrepos/-S
subrepo: add support for 'hg archive'
subrepo: fix status check on SVN subrepos (issue2445)
1.4. Revsets:
add id() and rev() to allow explicit references to changes by hash or rev (see hg help revsets)
add min() function to complement max()
add present() function to avoid lookup errors on possibly missing changesets
rename tagged() to tag() and allow it to take an optional tag name
strip: add revsets support
add revsets support to bisect and update (issue1993)
bookmarks: add a bookmark([name]) revset for referencing bookmarks
transplant: add a transplanted(set) revset to get transplanted revisions
1.5. hgweb:
add a help view for accessing the built-in documentation (see help link in hg serve)
let HTTPS serve use more compatible but less secure encryption
support very simple caching model (issue1845)
1.6. Extensions:
color: better support for branches and mq guards
convert: handle closed branch heads in hg-hg conversion (issue2185)
convert: support darcs changelogs with bytes 0x7F-0xFF (issue2411)
convert: deprecate --authors in preference for --authormap
graphlog: support header and footer templates when using styles (issue2395)
keyword: do not expand at all during diff
keyword: support copy and rename
mq: extend support for the --mq argument to extension commands
mq: save qrefresh message for easy recovery in case it fails (issue2062)
mq: support hg qimport --existing --name renametothis thatexistingpatch, fix --force case on Windows
mq/qqueue: support renaming of active queue
mq/qqueue: add --purge option to delete a queue and its patches
pager: add global --pager= option
patchbomb: add --confirm option to show series details and ask for confirmation
patchbomb: let diffstat prompt only once with complete summary
progress: support rebase and patchbomb
rebase: re-add patches to mq repo after rebase
strip: add --keep flag to avoid modifying working directory during strip
strip: rename --nobackup option to --no-backup (issue2377)
strip: support stripping multiple revisions
1.7. contrib:
mergetools.hgrc: add vimdiff
zsh completion: support bookmarks and patchbomb extensions
zsh completion: add qpush --move option
1.8. Windows:
64-bit Inno Setup installer
handle spaces in path to Python (issue2074)

New in Mercurial 1.6.4 (Oct 2, 2010)

New in Mercurial 1.6.3 (Oct 2, 2010)

New in Mercurial 1.6.2 (Aug 3, 2010)

New in Mercurial 1.6.1 (Aug 3, 2010)

New in Mercurial 1.6.0 (Jul 2, 2010)

New in Mercurial 1.5.4 (Jun 2, 2010)

New in Mercurial 1.5.3 (May 14, 2010)

New in Mercurial 1.5.2 (May 3, 2010)

New in Mercurial 1.5.1 (Apr 2, 2010)

New in Mercurial 1.5 (Mar 6, 2010)

New in Mercurial 1.4.3 (Feb 2, 2010)

New in Mercurial 1.4.2 (Jan 4, 2010)

New in Mercurial 1.4.1 (Jan 4, 2010)

New in Mercurial 1.4 (Jan 4, 2010)

New in Mercurial 1.3.1 (Jan 4, 2010)

New in Mercurial 1.3 (Jan 4, 2010)

Major Changes:
experimental support for sub-repositories
Python 2.3 is no longer supported; now requires Python 2.4-2.6
Commands:
merge: add -P/--preview option
update: don't unlink added files when -C/--clean is specified
update: added -c/--check option to abort on local changes
update: allow merges going backwards
push: improved handling of named branches
branches/heads: add a -c/--closed option to show closed branches
help: new extensions topic
General:
add patch.eol config setting to work with cross-platform patches
fixed support for SSL through proxies
add ability to load hooks from arbitrary Python modules
hide passwords for HTTP repositories in error and log output
fix Python 2.6 support in the Windows installer
add mechanism for specifying HTTP authentication details in hgrc
prompts and choices are now shown even in non-interactive mode
performance improvements, especially on Windows
much improved zsh completion
improved Danish, Japanese, Italian and simplified Chinese translations
new German, French, Greek, Brazilian Portuguese and traditional Chinese translations
Web interface
read configuration: data from webdir configs
add branches page to hgweb
pluggable templater engine support
refresh hgwebdir configuration periodically
let web.encoding override ui.encoding setting
deal with dicts/lists like webdir config paths
Extensions:
experimental share extension
the alias extension has been moved into core
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