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+Git 2.21 Release Notes
+======================
+
+Backward Compatibility Notes
+----------------------------
+
+ * Historically, the "-m" (mainline) option can only be used for "git
+ cherry-pick" and "git revert" when working with a merge commit.
+ This version of Git no longer warns or errors out when working with
+ a single-parent commit, as long as the argument to the "-m" option
+ is 1 (i.e. it has only one parent, and the request is to pick or
+ revert relative to that first parent). Scripts that relied on the
+ behaviour may get broken with this change.
+
+
+Updates since v2.20
+-------------------
+
+UI, Workflows & Features
+
+ * The "http.version" configuration variable can be used with recent
+ enough versions of cURL library to force the version of HTTP used
+ to talk when fetching and pushing.
+
+ * Small fixes and features for fast-export and fast-import, mostly on
+ the fast-export side has been made.
+
+ * "git push $there $src:$dst" rejects when $dst is not a fully
+ qualified refname and it is not clear what the end user meant. The
+ codepath has been taught to give a clearer error message, and also
+ guess where the push should go by taking the type of the pushed
+ object into account (e.g. a tag object would want to go under
+ refs/tags/).
+
+ * "git checkout [<tree-ish>] path..." learned to report the number of
+ paths that have been checked out of the index or the tree-ish,
+ which gives it the same degree of noisy-ness as the case in which
+ the command checks out a branch. "git checkout -m <pathspec>" to
+ undo conflict resolution gives a similar message.
+
+ * "git quiltimport" learned "--keep-non-patch" option.
+
+ * "git worktree remove" and "git worktree move" refused to work when
+ there is a submodule involved. This has been loosened to ignore
+ uninitialized submodules.
+
+ * "git cherry-pick -m1" was forbidden when picking a non-merge
+ commit, even though there _is_ parent number 1 for such a commit.
+ This was done to avoid mistakes back when "cherry-pick" was about
+ picking a single commit, but is no longer useful with "cherry-pick"
+ that can pick a range of commits. Now the "-m$num" option is
+ allowed when picking any commit, as long as $num names an existing
+ parent of the commit.
+
+ * Update "git multimail" from the upstream.
+
+ * "git p4" update.
+
+ * The "--format=<placeholder>" option of for-each-ref, branch and tag
+ learned to show a few more traits of objects that can be learned by
+ the object_info API.
+
+ * "git rebase -i" learned to re-execute a command given with 'exec'
+ to run after it failed the last time.
+
+ * "git diff --color-moved-ws" updates.
+
+ * Custom userformat "log --format" learned %S atom that stands for
+ the tip the traversal reached the commit from, i.e. --source.
+
+ * "git instaweb" learned to drive http.server that comes with
+ "batteries included" Python installation (both Python2 & 3).
+
+ * A new encoding UTF-16LE-BOM has been invented to force encoding to
+ UTF-16 with BOM in little endian byte order, which cannot be directly
+ generated by using iconv.
+
+ * A new date format "--date=human" that morphs its output depending
+ on how far the time is from the current time has been introduced.
+ "--date=auto:human" can be used to use this new format (or any
+ existing format) when the output is going to the pager or to the
+ terminal, and otherwise the default format.
+
+
+Performance, Internal Implementation, Development Support etc.
+
+ * Code clean-up with optimization for the codepath that checks
+ (non-)existence of loose objects.
+
+ * More codepaths have become aware of working with in-core repository
+ instances other than the default "the_repository".
+
+ * The "strncat()" function is now among the banned functions.
+
+ * Portability updates for the HPE NonStop platform.
+
+ * Earlier we added "-Wformat-security" to developer builds, assuming
+ that "-Wall" (which includes "-Wformat" which in turn is required
+ to use "-Wformat-security") is always in effect. This is not true
+ when config.mak.autogen is in use, unfortunately. This has been
+ fixed by unconditionally adding "-Wall" to developer builds.
+
+ * The loose object cache used to optimize existence look-up has been
+ updated.
+
+ * Flaky tests can now be repeatedly run under load with the
+ "--stress" option.
+
+ * Documentation/Makefile is getting prepared for manpage
+ localization.
+
+ * "git fetch-pack" now can talk the version 2 protocol.
+
+ * sha-256 hash has been added and plumbed through the code to allow
+ building Git with the "NewHash".
+
+ * Debugging help for http transport.
+
+ * "git fetch --deepen=<more>" has been corrected to work over v2
+ protocol.
+
+ * The code to walk tree objects has been taught that we may be
+ working with object names that are not computed with SHA-1.
+
+ * The in-core repository instances are passed through more codepaths.
+
+ * Update the protocol message specification to allow only the limited
+ use of scaled quantities. This is to ensure potential compatibility
+ issues will not get out of hand.
+
+ * Micro-optimize the code that prepares commit objects to be walked
+ by "git rev-list" when the commit-graph is available.
+
+ * "git fetch" and "git upload-pack" learned to send all exchanges over
+ the sideband channel while talking the v2 protocol.
+
+ * The codepath to write out commit-graph has been optimized by
+ following the usual pattern of visiting objects in in-pack order.
+
+ * The codepath to show progress meter while writing out commit-graph
+ file has been improved.
+
+ * Cocci rules have been updated to encourage use of strbuf_addbuf().
+
+ * "git rebase --merge" has been reimplemented by reusing the internal
+ machinery used for "git rebase -i".
+
+ * More code in "git bisect" has been rewritten in C.
+
+ * Instead of going through "git-rebase--am" scriptlet to use the "am"
+ backend, the built-in version of "git rebase" learned to drive the
+ "am" backend directly.
+
+ * The assumption to work on the single "in-core index" instance has
+ been reduced from the library-ish part of the codebase.
+
+ * The test lint learned to catch non-portable "sed" options.
+
+ * "git pack-objects" learned another algorithm to compute the set of
+ objects to send, that trades the resulting packfile off to save
+ traversal cost to favor small pushes.
+
+ * The travis CI scripts have been corrected to build Git with the
+ compiler(s) of our choice.
+
+ * "git submodule update" learned to abort early when core.worktree
+ for the submodule is not set correctly to prevent spreading damage.
+
+ * Test suite has been adjusted to run on Azure Pipeline.
+
+ * Running "Documentation/doc-diff x" from anywhere other than the
+ top-level of the working tree did not show the usage string
+ correctly, which has been fixed.
+
+ * Use of the sparse tool got easier to customize from the command
+ line to help developers.
+
+ * A new target "coverage-prove" to run the coverage test under
+ "prove" has been added.
+
+ * A flakey "p4" test has been removed.
+
+ * The code and tests assume that the system supplied iconv() would
+ always use BOM in its output when asked to encode to UTF-16 (or
+ UTF-32), but apparently some implementations output big-endian
+ without BOM. A compile-time knob has been added to help such
+ systems (e.g. NonStop) to add BOM to the output to increase
+ portability.
+
+
+Fixes since v2.20
+-----------------
+
+ * Updates for corner cases in merge-recursive.
+ (merge cc4cb0902c en/merge-path-collision later to maint).
+
+ * "git checkout frotz" (without any double-dash) avoids ambiguity by
+ making sure 'frotz' cannot be interpreted as a revision and as a
+ path at the same time. This safety has been updated to check also
+ a unique remote-tracking branch 'frotz' in a remote, when dwimming
+ to create a local branch 'frotz' out of a remote-tracking branch
+ 'frotz' from a remote.
+ (merge be4908f103 nd/checkout-dwim-fix later to maint).
+
+ * Refspecs configured with "git -c var=val clone" did not propagate
+ to the resulting repository, which has been corrected.
+ (merge 7eae4a3ac4 sg/clone-initial-fetch-configuration later to maint).
+
+ * A properly configured username/email is required under
+ user.useConfigOnly in order to create commits; now "git stash"
+ (even though it creates commit objects to represent stash entries)
+ command is exempt from the requirement.
+ (merge 3bc2111fc2 sd/stash-wo-user-name later to maint).
+
+ * The http-backend CGI process did not correctly clean up the child
+ processes it spawns to run upload-pack etc. when it dies itself,
+ which has been corrected.
+ (merge 02818a98d7 mk/http-backend-kill-children-before-exit later to maint).
+
+ * "git rev-list --exclude-promisor-objects" had to take an object
+ that does not exist locally (and is lazily available) from the
+ command line without barfing, but the code dereferenced NULL.
+ (merge 4cf67869b2 md/list-lazy-objects-fix later to maint).
+
+ * The traversal over tree objects has learned to honor
+ ":(attr:label)" pathspec match, which has been implemented only for
+ enumerating paths on the filesystem.
+ (merge 5a0b97b34c nd/attr-pathspec-in-tree-walk later to maint).
+
+ * BSD port updates.
+ (merge 4e3ecbd439 cb/openbsd-allows-reading-directory later to maint).
+ (merge b6bdc2a0f5 cb/t5004-empty-tar-archive-fix later to maint).
+ (merge 82cbc8cde2 cb/test-lint-cp-a later to maint).
+
+ * Lines that begin with a certain keyword that come over the wire, as
+ well as lines that consist only of one of these keywords, ought to
+ be painted in color for easier eyeballing, but the latter was
+ broken ever since the feature was introduced in 2.19, which has
+ been corrected.
+ (merge 1f67290450 hn/highlight-sideband-keywords later to maint).
+
+ * "git log -G<regex>" looked for a hunk in the "git log -p" patch
+ output that contained a string that matches the given pattern.
+ Optimize this code to ignore binary files, which by default will
+ not show any hunk that would match any pattern (unless textconv or
+ the --text option is in effect, that is).
+ (merge e0e7cb8080 tb/log-G-binary later to maint).
+
+ * "git submodule update" ought to use a single job unless asked, but
+ by mistake used multiple jobs, which has been fixed.
+ (merge e3a9d1aca9 sb/submodule-fetchjobs-default-to-one later to maint).
+
+ * "git stripspace" should be usable outside a git repository, but
+ under the "-s" or "-c" mode, it didn't.
+ (merge 957da75802 jn/stripspace-wo-repository later to maint).
+
+ * Some of the documentation pages formatted incorrectly with
+ Asciidoctor, which have been fixed.
+ (merge b62eb1d2f4 ma/asciidoctor later to maint).
+
+ * The core.worktree setting in a submodule repository should not be
+ pointing at a directory when the submodule loses its working tree
+ (e.g. getting deinit'ed), but the code did not properly maintain
+ this invariant.
+
+ * With zsh, "git cmd path<TAB>" was completed to "git cmd path name"
+ when the completed path has a special character like SP in it,
+ without any attempt to keep "path name" a single filename. This
+ has been fixed to complete it to "git cmd path\ name" just like
+ Bash completion does.
+
+ * The test suite tried to see if it is run under bash, but the check
+ itself failed under some other implementations of shell (notably
+ under NetBSD). This has been corrected.
+ (merge 54ea72f09c sg/test-bash-version-fix later to maint).
+
+ * "git gc" and "git repack" did not close the open packfiles that
+ they found unneeded before removing them, which didn't work on a
+ platform incapable of removing an open file. This has been
+ corrected.
+ (merge 5bdece0d70 js/gc-repack-close-before-remove later to maint).
+
+ * The code to drive GIT_EXTERNAL_DIFF command relied on the string
+ returned from getenv() to be non-volatile, which is not true, that
+ has been corrected.
+ (merge 6776a84dae kg/external-diff-save-env later to maint).
+
+ * There were many places the code relied on the string returned from
+ getenv() to be non-volatile, which is not true, that have been
+ corrected.
+ (merge 0da0e9268b jk/save-getenv-result later to maint).
+
+ * The v2 upload-pack protocol implementation failed to honor
+ hidden-ref configuration, which has been corrected.
+ (merge e20b4192a3 jk/proto-v2-hidden-refs-fix later to maint).
+
+ * "git fetch --recurse-submodules" may not fetch the necessary commit
+ that is bound to the superproject, which is getting corrected.
+ (merge be76c21282 sb/submodule-recursive-fetch-gets-the-tip later to maint).
+
+ * "git rebase" internally runs "checkout" to switch between branches,
+ and the command used to call the post-checkout hook, but the
+ reimplementation stopped doing so, which is getting fixed.
+
+ * "git add -e" got confused when the change it wants to let the user
+ edit is smaller than the previous change that was left over in a
+ temporary file.
+ (merge fa6f225e01 js/add-e-clear-patch-before-stating later to maint).
+
+ * "git p4" failed to update a shelved change when there were moved
+ files, which has been corrected.
+ (merge 7a10946ab9 ld/git-p4-shelve-update-fix later to maint).
+
+ * The codepath to read from the commit-graph file attempted to read
+ past the end of it when the file's table-of-contents was corrupt.
+
+ * The compat/obstack code had casts that -Wcast-function-type
+ compilation option found questionable.
+ (merge 764473d257 sg/obstack-cast-function-type-fix later to maint).
+
+ * An obvious typo in an assertion error message has been fixed.
+ (merge 3c27e2e059 cc/test-ref-store-typofix later to maint).
+
+ * In Git for Windows, "git clone \\server\share\path" etc. that uses
+ UNC paths from command line had bad interaction with its shell
+ emulation.
+
+ * "git add --ignore-errors" did not work as advertised and instead
+ worked as an unintended synonym for "git add --renormalize", which
+ has been fixed.
+ (merge e2c2a37545 jk/add-ignore-errors-bit-assignment-fix later to maint).
+
+ * On a case-insensitive filesystem, we failed to compare the part of
+ the path that is above the worktree directory in an absolute
+ pathname, which has been corrected.
+
+ * Asking "git check-attr" about a macro (e.g. "binary") on a specific
+ path did not work correctly, even though "git check-attr -a" listed
+ such a macro correctly. This has been corrected.
+ (merge 7b95849be4 jk/attr-macro-fix later to maint).
+
+ * "git pack-objects" incorrectly used uninitialized mutex, which has
+ been corrected.
+ (merge edb673cf10 ph/pack-objects-mutex-fix later to maint).
+
+ * "git checkout -b <new> [HEAD]" to create a new branch from the
+ current commit and check it out ought to be a no-op in the index
+ and the working tree in normal cases, but there are corner cases
+ that do require updates to the index and the working tree. Running
+ it immediately after "git clone --no-checkout" is one of these
+ cases that an earlier optimization kicked in incorrectly, which has
+ been fixed.
+ (merge 8424bfd45b bp/checkout-new-branch-optim later to maint).
+
+ * "git diff --color-moved --cc --stat -p" did not work well due to
+ funny interaction between a bug in color-moved and the rest, which
+ has been fixed.
+ (merge dac03b5518 jk/diff-cc-stat-fixes later to maint).
+
+ * When GIT_SEQUENCE_EDITOR is set, the command was incorrectly
+ started when modes of "git rebase" that implicitly uses the
+ machinery for the interactive rebase are run, which has been
+ corrected.
+ (merge 891d4a0313 pw/no-editor-in-rebase-i-implicit later to maint).
+
+ * The commit-graph facility did not work when in-core objects that
+ are promoted from unknown type to commit (e.g. a commit that is
+ accessed via a tag that refers to it) were involved, which has been
+ corrected.
+ (merge 4468d4435c sg/object-as-type-commit-graph-fix later to maint).
+
+ * "git fetch" output cleanup.
+ (merge dc40b24df4 nd/fetch-compact-update later to maint).
+
+ * "git cat-file --batch" reported a dangling symbolic link by
+ mistake, when it wanted to report that a given name is ambiguous.
+
+ * Documentation around core.crlf has been updated.
+ (merge c9446f0504 jk/autocrlf-overrides-eol-doc later to maint).
+
+ * The documentation of "git commit-tree" said that the command
+ understands "--gpg-sign" in addition to "-S", but the command line
+ parser did not know about the longhand, which has been corrected.
+
+ * "git rebase -x $cmd" did not reject multi-line command, even though
+ the command is incapable of handling such a command. It now is
+ rejected upfront.
+ (merge c762aada1a pw/rebase-x-sanity-check later to maint).
+
+ * Output from "git help" was not correctly aligned, which has been
+ fixed.
+ (merge 6195a76da4 nd/help-align-command-desc later to maint).
+
+ * The "git submodule summary" subcommand showed shortened commit
+ object names by mechanically truncating them at 7-hexdigit, which
+ has been improved to let "rev-parse --short" scale the length of
+ the abbreviation with the size of the repository.
+ (merge 0586a438f6 sh/submodule-summary-abbrev-fix later to maint).
+
+ * The way the OSX build jobs updates its build environment used the
+ "--quiet" option to "brew update" command, but it wasn't all that
+ quiet to be useful. The use of the option has been replaced with
+ an explicit redirection to the /dev/null (which incidentally would
+ have worked around a breakage by recent updates to homebrew, which
+ has fixed itself already).
+ (merge a1ccaedd62 sg/travis-osx-brew-breakage-workaround later to maint).
+
+ * "git --work-tree=$there --git-dir=$here describe --dirty" did not
+ work correctly as it did not pay attention to the location of the
+ worktree specified by the user by mistake, which has been
+ corrected.
+ (merge c801170b0c ss/describe-dirty-in-the-right-directory later to maint).
+
+ * "git fetch" over protocol v2 that needs to make a second connection
+ to backfill tags did not clear a variable that holds shallow
+ repository information correctly, leading to an access of freed
+ piece of memory.
+
+ * Some errors from the other side coming over smart HTTP transport
+ were not noticed, which has been corrected.
+
+ * Code cleanup, docfix, build fix, etc.
+ (merge 89ba9a79ae hb/t0061-dot-in-path-fix later to maint).
+ (merge d173e799ea sb/diff-color-moved-config-option-fixup later to maint).
+ (merge a8f5a59067 en/directory-renames-nothanks-doc-update later to maint).
+ (merge ec36c42a63 nd/indentation-fix later to maint).
+ (merge f116ee21cd do/gitweb-strict-export-conf-doc later to maint).
+ (merge 112ea42663 fd/gitweb-snapshot-conf-doc-fix later to maint).
+ (merge 1cadad6f65 tb/use-common-win32-pathfuncs-on-cygwin later to maint).
+ (merge 57e9dcaa65 km/rebase-doc-typofix later to maint).
+ (merge b8b4cb27e6 ds/gc-doc-typofix later to maint).
+ (merge 3b3357626e nd/style-opening-brace later to maint).
+ (merge b4583d5595 es/doc-worktree-guessremote-config later to maint).
+ (merge cce99cd8c6 ds/commit-graph-assert-missing-parents later to maint).
+ (merge 0650614982 cy/completion-typofix later to maint).
+ (merge 6881925ef5 rs/sha1-file-close-mapped-file-on-error later to maint).
+ (merge bd8d6f0def en/show-ref-doc-fix later to maint).
+ (merge 1747125e2c cc/partial-clone-doc-typofix later to maint).
+ (merge e01378753d cc/fetch-error-message-fix later to maint).
+ (merge 54e8c11215 jk/remote-insteadof-cleanup later to maint).
+ (merge d609615f48 js/test-git-installed later to maint).
+ (merge ba170517be ja/doc-style-fix later to maint).
+ (merge 86fb1c4e77 km/init-doc-typofix later to maint).
+ (merge 5cfd4a9d10 nd/commit-doc later to maint).
+ (merge 9fce19a431 ab/diff-tree-doc-fix later to maint).
+ (merge 2e285e7803 tz/gpg-test-fix later to maint).
+ (merge 5427de960b kl/pretty-doc-markup-fix later to maint).
+ (merge 3815f64b0d js/mingw-host-cpu later to maint).
+ (merge 5fe81438b5 rj/sequencer-sign-off-header-static later to maint).
+ (merge 18a4f6be6b nd/fileno-may-be-macro later to maint).
+ (merge 99e9ab54ab kd/t0028-octal-del-is-377-not-777 later to maint).
diff --git a/Documentation/RelNotes/2.22.0.txt b/Documentation/RelNotes/2.22.0.txt
new file mode 100644
index 0000000000..d7d230e539
--- /dev/null
+++ b/Documentation/RelNotes/2.22.0.txt
@@ -0,0 +1,269 @@
+Git 2.22 Release Notes
+======================
+
+Updates since v2.21
+-------------------
+
+UI, Workflows & Features
+
+ * "git checkout --no-overlay" can be used to trigger a new mode of
+ checking out paths out of the tree-ish, that allows paths that
+ match the pathspec that are in the current index and working tree
+ and are not in the tree-ish.
+
+ * The %(trailers) formatter in "git log --format=..." now allows to
+ optionally pick trailers selectively by keyword, show only values,
+ etc.
+
+ * Four new configuration variables {author,committer}.{name,email}
+ have been introduced to override user.{name,email} in more specific
+ cases.
+
+ * Command-line completion (in contrib/) learned to tab-complete the
+ "git submodule absorbgitdirs" subcommand.
+
+ * "git branch" learned a new subcommand "--show-current".
+
+ * Output from "diff --cc" did not show the original paths when the
+ merge involved renames. A new option adds the paths in the
+ original trees to the output.
+
+ * The command line completion (in contrib/) has been taught to
+ complete more subcommand parameters.
+
+ * The final report from "git bisect" used to show the suspected
+ culprit using a raw "diff-tree", with which there is no output for
+ a merge commit. This has been updated to use a more modern and
+ human readable output that still is concise enough.
+
+ * "git rebase --rebase-merges" replaces its old "--preserve-merges"
+ option; the latter is now marked as deprecated.
+
+ * Error message given while cloning with --recurse-submodules has
+ been updated.
+
+ * The completion helper code now pays attention to repository-local
+ configuration (when available), which allows --list-cmds to honour
+ a repository specific setting of completion.commands, for example.
+
+ * "git mergetool" learned to offer Sublime Merge (smerge) as one of
+ its backends.
+
+
+Performance, Internal Implementation, Development Support etc.
+
+ * The diff machinery, one of the oldest parts of the system, which
+ long predates the parse-options API, uses fairly long and complex
+ handcrafted option parser. This is being rewritten to use the
+ parse-options API.
+
+ * The implementation of pack-redundant has been updated for
+ performance in a repository with many packfiles.
+
+ * A more structured way to obtain execution trace has been added.
+
+ * "git prune" has been taught to take advantage of reachability
+ bitmap when able.
+
+ * The command line parser of "git commit-tree" has been rewritten to
+ use the parse-options API.
+
+ * Suggest GitGitGadget instead of submitGit as a way to submit
+ patches based on GitHub PR to us.
+
+ * The test framework has been updated to help developers by making it
+ easier to run most of the tests under different versions of
+ over-the-wire protocols.
+
+ * Dev support update to make it easier to compare two formatted
+ results from our documentation.
+
+ * The scripted "git rebase" implementation has been retired.
+
+ * "git multi-pack-index verify" did not scale well with the number of
+ packfiles, which is being improved.
+
+ * "git stash" has been rewritten in C.
+
+ * The "check-docs" Makefile target to support developers has been
+ updated.
+
+ * The tests have been updated not to rely on the abbreviated option
+ names the parse-options API offers, to protect us from an
+ abbreviated form of an option that used to be unique within the
+ command getting non-unique when a new option that share the same
+ prefix is added.
+
+
+Fixes since v2.21
+-----------------
+
+ * "git prune-packed" did not notice and complain against excess
+ arguments given from the command line, which now it does.
+ (merge 9b0bd87ed2 rj/prune-packed-excess-args later to maint).
+
+ * Split-index fix.
+ (merge 6e37c8ed3c nd/split-index-null-base-fix later to maint).
+
+ * "git diff --no-index" may still want to access Git goodies like
+ --ext-diff and --textconv, but so far these have been ignored,
+ which has been corrected.
+ (merge 287ab28bfa jk/diff-no-index-initialize later to maint).
+
+ * Unify RPC code for smart http in protocol v0/v1 and v2, which fixes
+ a bug in the latter (lack of authentication retry) and generally
+ improves the code base.
+ (merge a97d00799a jt/http-auth-proto-v2-fix later to maint).
+
+ * The include file compat/bswap.h has been updated so that it is safe
+ to (accidentally) include it more than once.
+ (merge 33aa579a55 jk/guard-bswap-header later to maint).
+
+ * The set of header files used by "make hdr-check" unconditionally
+ included sha256/gcrypt.h, even when it is not used, causing the
+ make target to fail. We now skip it when GCRYPT_SHA256 is not in
+ use.
+ (merge f23aa18e7f rj/hdr-check-gcrypt-fix later to maint).
+
+ * The Makefile uses 'find' utility to enumerate all the *.h header
+ files, which is expensive on platforms with slow filesystems; it
+ now optionally uses "ls-files" if working within a repository,
+ which is a trick similar to how all sources are enumerated to run
+ ETAGS on.
+ (merge 92b88eba9f js/find-lib-h-with-ls-files-when-possible later to maint).
+
+ * "git rebase" that was reimplemented in C did not set ORIG_HEAD
+ correctly, which has been corrected.
+ (merge cbd29ead92 js/rebase-orig-head-fix later to maint).
+
+ * Dev support.
+ (merge f545737144 js/stress-test-ui-tweak later to maint).
+
+ * CFLAGS now can be tweaked when invoking Make while using
+ DEVELOPER=YesPlease; this did not work well before.
+ (merge 6d5d4b4e93 ab/makefile-help-devs-more later to maint).
+
+ * "git fsck --connectivity-only" omits computation necessary to sift
+ the objects that are not reachable from any of the refs into
+ unreachable and dangling. This is now enabled when dangling
+ objects are requested (which is done by default, but can be
+ overridden with the "--no-dangling" option).
+ (merge 8d8c2a5aef jk/fsck-doc later to maint).
+
+ * On platforms where "git fetch" is killed with SIGPIPE (e.g. OSX),
+ the upload-pack that runs on the other end that hangs up after
+ detecting an error could cause "git fetch" to die with a signal,
+ which led to a flakey test. "git fetch" now ignores SIGPIPE during
+ the network portion of its operation (this is not a problem as we
+ check the return status from our write(2)s).
+ (merge 143588949c jk/no-sigpipe-during-network-transport later to maint).
+
+ * A recent update broke "is this object available to us?" check for
+ well-known objects like an empty tree (which should yield "yes",
+ even when there is no on-disk object for an empty tree), which has
+ been corrected.
+ (merge f06ab027ef jk/virtual-objects-do-exist later to maint).
+
+ * The setup code has been cleaned up to avoid leaks around the
+ repository_format structure.
+ (merge e8805af1c3 ma/clear-repository-format later to maint).
+
+ * "git config --type=color ..." is meant to replace "git config --get-color"
+ but there is a slight difference that wasn't documented, which is
+ now fixed.
+ (merge cd8e7593b9 jk/config-type-color-ends-with-lf later to maint).
+
+ * When the "clean" filter can reduce the size of a huge file in the
+ working tree down to a small "token" (a la Git LFS), there is no
+ point in allocating a huge scratch area upfront, but the buffer is
+ sized based on the original file size. The convert mechanism now
+ allocates very minimum and reallocates as it receives the output
+ from the clean filter process.
+ (merge 02156ab031 jh/resize-convert-scratch-buffer later to maint).
+
+ * "git rebase" uses the refs/rewritten/ hierarchy to store its
+ intermediate states, which inherently makes the hierarchy per
+ worktree, but it didn't quite work well.
+ (merge b9317d55a3 nd/rewritten-ref-is-per-worktree later to maint).
+
+ * "git log -L<from>,<to>:<path>" with "-s" did not suppress the patch
+ output as it should. This has been corrected.
+ (merge 05314efaea jk/line-log-with-patch later to maint).
+
+ * "git worktree add" used to do a "find an available name with stat
+ and then mkdir", which is race-prone. This has been fixed by using
+ mkdir and reacting to EEXIST in a loop.
+ (merge 7af01f2367 ms/worktree-add-atomic-mkdir later to maint).
+
+ * Build update for SHA-1 with collision detection.
+ (merge 07a20f569b jk/sha1dc later to maint).
+
+ * Build procedure has been fixed around use of asciidoctor instead of
+ asciidoc.
+ (merge 185f9a0ea0 ma/asciidoctor-fixes later to maint).
+
+ * remote-http transport did not anonymize URLs reported in its error
+ messages at places.
+ (merge c1284b21f2 js/anonymize-remote-curl-diag later to maint).
+
+ * Error messages given from the http transport have been updated so
+ that they can be localized.
+ (merge ed8b4132c8 js/remote-curl-i18n later to maint).
+
+ * "git init" forgot to read platform-specific repository
+ configuration, which made Windows port to ignore settings of
+ core.hidedotfiles, for example.
+
+ * A corner-case object name ambiguity while the sequencer machinery
+ is working (e.g. "rebase -i -x") has been fixed.
+
+ * "git format-patch" did not diagnose an error while opening the
+ output file for the cover-letter, which has been corrected.
+ (merge 2fe95f494c jc/format-patch-error-check later to maint).
+
+ * "git checkout -f <branch>" while the index has an unmerged path
+ incorrectly left some paths in an unmerged state, which has been
+ corrected.
+
+ * A corner case bug in the refs API has been corrected.
+ (merge d3322eb28b jk/refs-double-abort later to maint).
+
+ * Unicode update.
+ (merge 584b62c37b bb/unicode-12 later to maint).
+
+ * dumb-http walker has been updated to share more error recovery
+ strategy with the normal codepath.
+
+ * A buglet in configuration parser has been fixed.
+ (merge 19e7fdaa58 nd/include-if-wildmatch later to maint).
+
+ * The documentation for "git read-tree --reset -u" has been updated.
+ (merge b5a0bd694c nd/read-tree-reset-doc later to maint).
+
+ * Code cleanup, docfix, build fix, etc.
+ (merge 11f470aee7 jc/test-yes-doc later to maint).
+ (merge 90503a240b js/doc-symref-in-proto-v1 later to maint).
+ (merge 5c326d1252 jk/unused-params later to maint).
+ (merge 68cabbfda3 dl/doc-submodule-wo-subcommand later to maint).
+ (merge 9903623761 ab/receive-pack-use-after-free-fix later to maint).
+ (merge 1ede45e44b en/merge-options-doc later to maint).
+ (merge 3e14dd2c8e rd/doc-hook-used-in-sample later to maint).
+ (merge c271dc28fd nd/no-more-check-racy later to maint).
+ (merge e6e15194a8 yb/utf-16le-bom-spellfix later to maint).
+ (merge bb101aaf0c rd/attr.c-comment-typofix later to maint).
+ (merge 716a5af812 rd/gc-prune-doc-fix later to maint).
+ (merge 50b206371d js/untravis-windows later to maint).
+ (merge dbf47215e3 js/rebase-recreate-merge later to maint).
+ (merge 56cb2d30f8 dl/reset-doc-no-wrt-abbrev later to maint).
+ (merge 64eca306a2 ja/dir-rename-doc-markup-fix later to maint).
+ (merge af91b0230c dl/ignore-docs later to maint).
+ (merge 59a06e947b ra/t3600-test-path-funcs later to maint).
+ (merge e041d0781b ar/t4150-remove-cruft later to maint).
+ (merge 8d75a1d183 ma/asciidoctor-fixes-more later to maint).
+ (merge 74cc547b0f mh/pack-protocol-doc-fix later to maint).
+ (merge ed31851fa6 ab/doc-misc-typofixes later to maint).
+ (merge a7256debd4 nd/checkout-m-doc-update later to maint).
+ (merge 3a9e1ad78d jt/t5551-protocol-v2-does-not-have-half-auth later to maint).
+ (merge 0b918b75af sg/t5318-cleanup later to maint).
+ (merge 68ed71b53c cb/doco-mono later to maint).
+ (merge a34dca2451 nd/interpret-trailers-docfix later to maint).