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+GIT v1.6.4 Release Notes
+========================
+
+With the next major release, "git push" into a branch that is
+currently checked out will be refused by default.  You can choose
+what should happen upon such a push by setting the configuration
+variable receive.denyCurrentBranch in the receiving repository.
+
+To ease the transition plan, the receiving repository of such a
+push running this release will issue a big warning when the
+configuration variable is missing.  Please refer to:
+
+  http://git.or.cz/gitwiki/GitFaq#non-bare
+  http://thread.gmane.org/gmane.comp.version-control.git/107758/focus=108007
+
+for more details on the reason why this change is needed and the
+transition plan.
+
+For a similar reason, "git push $there :$killed" to delete the branch
+$killed in a remote repository $there, if $killed branch is the current
+branch pointed at by its HEAD, gets a large warning.  You can choose what
+should happen upon such a push by setting the configuration variable
+receive.denyDeleteCurrent in the receiving repository.
+
+
+Updates since v1.6.3
+--------------------
+
+(subsystems)
+
+ * gitweb Perl style clean-up.
+
+ * git-svn updates, including a new --authors-prog option to map author
+   names by invoking an external program, 'git svn reset' to unwind
+   'git svn fetch', support for more than one branches, etc.
+
+(portability)
+
+ * We feed iconv with "UTF-8" instead of "utf8"; the former is
+   understood more widely.  Similarly updated test scripts to use
+   encoding names more widely understood (e.g. use "ISO8850-1" instead
+   of "ISO-8859-1").
+
+ * Various portability fixes/workarounds for different vintages of
+   SunOS, IRIX, and Windows.
+
+ * Git-over-ssh transport on Windows supports PuTTY plink and TortoisePlink.
+
+(performance)
+
+ * Many repeated use of lstat() are optimized out in "checkout" codepath.
+
+ * git-status (and underlying git-diff-index --cached) are optimized
+   to take advantage of cache-tree information in the index.
+
+(usability, bells and whistles)
+
+ * "git add --edit" lets users edit the whole patch text to fine-tune what
+   is added to the index.
+
+ * "git am" accepts StGIT series file as its input.
+
+ * "git bisect skip" skips to a more randomly chosen place in the hope
+   to avoid testing a commit that is too close to a commit that is
+   already known to be untestable.
+
+ * "git cvsexportcommit" learned -k option to stop CVS keywords expansion
+
+ * "git grep" learned -p option to show the location of the match using the
+   same context hunk marker "git diff" uses.
+
+ * https transport can optionally be told that the used client
+   certificate is password protected, in which case it asks the
+   password only once.
+
+ * "git imap-send" is IPv6 aware.
+
+ * "git log --graph" draws graphs more compactly by using horizonal lines
+   when able.
+
+ * "git log --decorate" shows shorter refnames by stripping well-known
+   refs/* prefix.
+
+ * "git push $name" honors remote.$name.pushurl if present before
+   using remote.$name.url.  In other words, the URL used for fetching
+   and pushing can be different.
+
+ * "git send-email" understands quoted aliases in .mailrc files (might
+   have to be backported to 1.6.3.X).
+
+ * "git send-email" can fetch the sender address from the configuration
+   variable "sendmail.from" (and "sendmail.<identity>.from").
+
+ * "git show-branch" can color its output.
+
+ * "add" and "update" subcommands to "git submodule" learned --reference
+   option to use local clone with references.
+
+ * "git submodule update" learned --rebase option to update checked
+   out submodules by rebasing the local changes.
+
+ * "gitweb" can optionally use gravatar to adorn author/committer names.
+
+(developers)
+
+ * A major part of the "git bisect" wrapper has moved to C.
+
+Fixes since v1.6.3
+------------------
+
+All of the fixes in v1.6.3.X maintenance series are included in this
+release, unless otherwise noted.
+
+Here are fixes that this release has, but have not been backported to
+v1.6.3.X series.
+
+ * "git diff-tree -r -t" used to omit new or removed directories from
+   the output.  df533f3 (diff-tree -r -t: include added/removed
+   directories in the output, 2009-06-13) may need to be cherry-picked
+   to backport this fix.
+
+ * The way Git.pm sets up a Repository object was not friendly to callers
+   that chdir around.  It now internally records the repository location
+   as an absolute path when autodetected.
+
+---
+exec >/var/tmp/1
+echo O=$(git describe master)
+O=v1.6.4-rc1-7-gbba0fd2
+git shortlog --no-merges $O..master ^maint