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+Git 2.16 Release Notes
+======================
+
+Backward compatibility notes and other notable changes.
+
+ * Use of an empty string as a pathspec element that is used for
+   'everything matches' is now an error.
+
+
+Updates since v2.15
+-------------------
+
+UI, Workflows & Features
+
+ * An empty string as a pathspec element that means "everything"
+   i.e. 'git add ""', is now illegal.  We started this by first
+   deprecating and warning a pathspec that has such an element in
+   2.11 (Nov 2016).
+
+ * A hook script that is set unexecutable is simply ignored.  Git
+   notifies when such a file is ignored, unless the message is
+   squelched via advice.ignoredHook configuration.
+
+ * "git pull" has been taught to accept "--[no-]signoff" option and
+   pass it down to "git merge".
+
+ * The "--push-option=<string>" option to "git push" now defaults to a
+   list of strings configured via push.pushOption variable.
+
+ * "gitweb" checks if a directory is searchable with Perl's "-x"
+   operator, which can be enhanced by using "filetest 'access'"
+   pragma, which now we do.
+
+ * "git stash save" has been deprecated in favour of "git stash push".
+
+ * The set of paths output from "git status --ignored" was tied
+   closely with its "--untracked=<mode>" option, but now it can be
+   controlled more flexibly.  Most notably, a directory that is
+   ignored because it is listed to be ignored in the ignore/exclude
+   mechanism can be handled differently from a directory that ends up
+   to be ignored only because all files in it are ignored.
+
+ * The remote-helper for talking to MediaWiki has been updated to
+   truncate an overlong pagename so that ".mw" suffix can still be
+   added.
+
+ * The remote-helper for talking to MediaWiki has been updated to
+   work with mediawiki namespaces.
+
+ * The "--format=..." option "git for-each-ref" takes learned to show
+   the name of the 'remote' repository and the ref at the remote side
+   that is affected for 'upstream' and 'push' via "%(push:remotename)"
+   and friends.
+
+ * Doc and message updates to teach users "bisect view" is a synonym
+   for "bisect visualize".
+
+ * "git bisect run" that did not specify any command to run used to go
+   ahead and treated all commits to be tested as 'good'.  This has
+   been corrected by making the command error out.
+
+ * The SubmittingPatches document has been converted to produce an
+   HTML version via AsciiDoc/Asciidoctor.
+   (merge 049e64aa50 bc/submitting-patches-in-asciidoc later to maint).
+
+ * We learned to talk to watchman to speed up "git status" and other
+   operations that need to see which paths have been modified.
+
+
+Performance, Internal Implementation, Development Support etc.
+
+ * An earlier update made it possible to use an on-stack in-core
+   lockfile structure (as opposed to having to deliberately leak an
+   on-heap one).  Many codepaths have been updated to take advantage
+   of this new facility.
+
+ * Calling cmd_foo() as if it is a general purpose helper function is
+   a no-no.  Correct two instances of such to set an example.
+
+ * We try to see if somebody runs our test suite with a shell that
+   does not support "local" like bash/dash does.
+
+ * An early part of piece-by-piece rewrite of "git bisect" in C.
+
+ * GSoC to piece-by-piece rewrite "git submodule" in C.
+
+ * Optimize the code to find shortest unique prefix of object names.
+
+ * Pathspec-limited revision traversal was taught not to keep finding
+   unneeded differences once it knows two trees are different inside
+   given pathspec.
+
+ * Conversion from uchar[20] to struct object_id continues.
+
+ * Code cleanup.
+
+ * A single-word "unsigned flags" in the diff options is being split
+   into a structure with many bitfields.
+
+ * TravisCI build updates.
+
+ * Parts of a test to drive the long-running content filter interface
+   has been split into its own module, hopefully to eventually become
+   reusable.
+
+ * Drop (perhaps overly cautious) sanity check before using the index
+   read from the filesystem at runtime.
+
+Also contains various documentation updates and code clean-ups.
+
+
+Fixes since v2.15
+-----------------
+
+ * "auto" as a value for the columnar output configuration ought to
+   judge "is the output consumed by humans?" with the same criteria as
+   "auto" for coloured output configuration, i.e. either the standard
+   output stream is going to tty, or a pager is in use.  We forgot the
+   latter, which has been fixed.
+
+ * The experimental "color moved lines differently in diff output"
+   feature was buggy around "ignore whitespace changes" edges, whihch
+   has been corrected.
+
+ * Instead of using custom line comparison and hashing functions to
+   implement "moved lines" coloring in the diff output, use the pair
+   of these functions from lower-layer xdiff/ code.
+
+ * Some codepaths did not check for errors when asking what branch the
+   HEAD points at, which have been fixed.
+
+ * "git commit", after making a commit, did not check for errors when
+   asking on what branch it made the commit, which has been correted.
+
+ * "git status --ignored -u" did not stop at a working tree of a
+   separate project that is embedded in an ignored directory and
+   listed files in that other project, instead of just showing the
+   directory itself as ignored.
+
+ * A broken access to object databases in recent update to "git grep
+   --recurse-submodules" has been fixed.
+
+ * A recent regression in "git rebase -i" that broke execution of git
+   commands from subdirectories via "exec" insn has been fixed.
+
+ * A (possibly flakey) test fix.
+
+ * "git check-ref-format --branch @{-1}" bit a "BUG()" when run
+   outside a repository for obvious reasons; clarify the documentation
+   and make sure we do not even try to expand the at-mark magic in
+   such a case, but still call the validation logic for branch names.
+
+ * "git fetch --recurse-submodules" now knows that submodules can be
+   moved around in the superproject in addition to getting updated,
+   and finds the ones that need to be fetched accordingly.
+
+ * Command line completion (in contrib/) update.
+
+ * Description of blame.{showroot,blankboundary,showemail,date}
+   configuration variables have been added to "git config --help".
+
+ * After an error from lstat(), diff_populate_filespec() function
+   sometimes still went ahead and used invalid data in struct stat,
+   which has been fixed.
+
+ * UNC paths are also relevant in Cygwin builds and they are now
+   tested just like Mingw builds.
+
+ * Correct start-up sequence so that a repository could be placed
+   immediately under the root directory again (which was broken at
+   around Git 2.13).
+
+ * The credential helper for libsecret (in contrib/) has been improved
+   to allow possibly prompting the end user to unlock secrets that are
+   currently locked (otherwise the secrets may not be loaded).
+
+ * MinGW updates.
+
+ * Error checking in "git imap-send" for empty response has been
+   improved.
+   (merge 618ec81abb rs/imap-send-next-arg-fix later to maint).
+
+ * Recent update to the refs infrastructure implementation started
+   rewriting packed-refs file more often than before; this has been
+   optimized again for most trivial cases.
+   (merge 7c6bd25c7d mh/avoid-rewriting-packed-refs later to maint).
+
+ * Some error messages did not quote filenames shown in it, which have
+   been fixed.
+
+ * "git rebase -i" recently started misbehaving when a submodule that
+   is configured with 'submodule.<name>.ignore' is dirty; this has
+   been corrected.
+
+ * Building with NO_LIBPCRE1_JIT did not disable it, which has been fixed.
+
+ * We used to add an empty alternate object database to the system
+   that does not help anything; it has been corrected.
+
+ * Doc update around use of "format-patch --subject-prefix" etc.
+   (merge f6be7edcac ad/submitting-patches-title-decoration later to maint).
+
+ * A fix for an ancient bug in "git apply --ignore-space-change" codepath.
+   (merge 6ce15ce576 rs/apply-fuzzy-match-fix later to maint).
+
+ * Other minor doc, test and build updates and code cleanups.
+   (merge f4e45cb3eb ma/bisect-leakfix later to maint).
+   (merge 4da72644b7 ma/reduce-heads-leakfix later to maint).