This is a scheduled bugfix release.
* checknlink: return False if .hgtmp file preexists (issue2517)
* commit: search both parents for missing copy revision (issue2484)
* context: walk both parents for workingctx.ancestors()
* convert/svn: fix changed files list upon directory replacements
* hgwebdir: fix incorrect index generation for invalid paths (issue2023)
* keyword: copy: when copied source is a symlink, follow it
* mq: ignore subrepos (issue2499)
* rebase: support --detach when null is common ancestor
* subrepo: fix removing read-only svn files on Windows
* subrepo: handle missing subrepo spec file as removed
* subrepo: prune empty directories when removing svn subrepo
* subrepo: use subprocess directly to avoid python 2.6 bug
* util: do not crash on revisions with negative timestamp (issue2513)
* util: do not recurse in makedirs if name is '' (issue2528)
* win32mbcs: use extsetup() to wrap functions only once
* wix: add support for x64 native MSI packages