Mercurial 2.5正式版发布，有以下特性：

1.1. 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

1.2. 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

1.3. 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

1.4. 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