freshlybakedca.ke
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1Git 2.5 Release Notes
2=====================
3
4Updates since v2.4
5------------------
6
7UI, Workflows & Features
8
9 * The bash completion script (in contrib/) learned a few options that
10 "git revert" takes.
11
12 * Whitespace breakages in deleted and context lines can also be
13 painted in the output of "git diff" and friends with the new
14 --ws-error-highlight option.
15
16 * List of commands shown by "git help" are grouped along the workflow
17 elements to help early learners.
18
19 * "git p4" now detects the filetype (e.g. binary) correctly even when
20 the files are opened exclusively.
21
22 * git p4 attempts to better handle branches in Perforce.
23
24 * "git p4" learned "--changes-block-size <n>" to read the changes in
25 chunks from Perforce, instead of making one call to "p4 changes"
26 that may trigger "too many rows scanned" error from Perforce.
27
28 * More workaround for Perforce's row number limit in "git p4".
29
30 * Unlike "$EDITOR" and "$GIT_EDITOR" that can hold the path to the
31 command and initial options (e.g. "/path/to/emacs -nw"), 'git p4'
32 did not let the shell interpolate the contents of the environment
33 variable that name the editor "$P4EDITOR" (and "$EDITOR", too).
34 This release makes it in line with the rest of Git, as well as with
35 Perforce.
36
37 * A new short-hand <branch>@{push} denotes the remote-tracking branch
38 that tracks the branch at the remote the <branch> would be pushed
39 to.
40
41 * "git show-branch --topics HEAD" (with no other arguments) did not
42 do anything interesting. Instead, contrast the given revision
43 against all the local branches by default.
44
45 * A replacement for contrib/workdir/git-new-workdir that does not
46 rely on symbolic links and make sharing of objects and refs safer
47 by making the borrowee and borrowers aware of each other.
48
49 Consider this as still an experimental feature; its UI is still
50 likely to change.
51
52 * Tweak the sample "store" backend of the credential helper to honor
53 XDG configuration file locations when specified.
54
55 * A heuristic we use to catch mistyped paths on the command line
56 "git <cmd> <revs> <pathspec>" is to make sure that all the non-rev
57 parameters in the later part of the command line are names of the
58 files in the working tree, but that means "git grep $str -- \*.c"
59 must always be disambiguated with "--", because nobody sane will
60 create a file whose name literally is asterisk-dot-see. Loosen the
61 heuristic to declare that with a wildcard string the user likely
62 meant to give us a pathspec.
63
64 * "git merge FETCH_HEAD" learned that the previous "git fetch" could
65 be to create an Octopus merge, i.e. recording multiple branches
66 that are not marked as "not-for-merge"; this allows us to lose an
67 old style invocation "git merge <msg> HEAD $commits..." in the
68 implementation of "git pull" script; the old style syntax can now
69 be deprecated (but not removed yet).
70
71 * Filter scripts were run with SIGPIPE disabled on the Git side,
72 expecting that they may not read what Git feeds them to filter.
73 We however treated a filter that does not read its input fully
74 before exiting as an error. We no longer do and ignore EPIPE
75 when writing to feed the filter scripts.
76
77 This changes semantics, but arguably in a good way. If a filter
78 can produce its output without fully consuming its input using
79 whatever magic, we now let it do so, instead of diagnosing it
80 as a programming error.
81
82 * Instead of dying immediately upon failing to obtain a lock, the
83 locking (of refs etc) retries after a short while with backoff.
84
85 * Introduce http.<url>.SSLCipherList configuration variable to tweak
86 the list of cipher suite to be used with libcURL when talking with
87 https:// sites.
88
89 * "git subtree" script (in contrib/) used "echo -n" to produce
90 progress messages in a non-portable way.
91
92 * "git subtree" script (in contrib/) does not have --squash option
93 when pushing, but the documentation and help text pretended as if
94 it did.
95
96 * The Git subcommand completion (in contrib/) no longer lists credential
97 helpers among candidates; they are not something the end user would
98 invoke interactively.
99
100 * The index file can be taught with "update-index --untracked-cache"
101 to optionally remember already seen untracked files, in order to
102 speed up "git status" in a working tree with tons of cruft.
103
104 * "git mergetool" learned to drive WinMerge as a backend.
105
106 * "git upload-pack" that serves "git fetch" can be told to serve
107 commits that are not at the tip of any ref, as long as they are
108 reachable from a ref, with uploadpack.allowReachableSHA1InWant
109 configuration variable.
110
111 * "git cat-file --batch(-check)" learned the "--follow-symlinks"
112 option that follows an in-tree symbolic link when asked about an
113 object via extended SHA-1 syntax, e.g. HEAD:RelNotes that points at
114 Documentation/RelNotes/2.5.0.txt. With the new option, the command
115 behaves as if HEAD:Documentation/RelNotes/2.5.0.txt was given as
116 input instead.
117
118 Consider this as still an experimental and incomplete feature:
119
120 - We may want to do the same for in-index objects, e.g.
121 asking for :RelNotes with this option should give
122 :Documentation/RelNotes/2.5.0.txt, too
123
124 - "git cat-file --follow-symlinks blob HEAD:RelNotes"
125 may also be something we want to allow in the future.
126
127 * "git send-email" learned the alias file format used by the sendmail
128 program (in a simplified form; we obviously do not feed pipes).
129
130 * Traditionally, external low-level 3-way merge drivers are expected
131 to produce their results based solely on the contents of the three
132 variants given in temporary files named by %O, %A and %B on their
133 command line. Additionally allow them to look at the final path
134 (given by %P).
135
136 * "git blame" learned blame.showEmail configuration variable.
137
138 * "git apply" cannot diagnose a patch corruption when the breakage is
139 to mark the length of the hunk shorter than it really is on the
140 hunk header line "@@ -l,k +m,n @@"; one special case it could is
141 when the hunk becomes no-op (e.g. k == n == 2 for two-line context
142 patch output), and it learned to do so in this special case.
143
144 * Add the "--allow-unknown-type" option to "cat-file" to allow
145 inspecting loose objects of an experimental or a broken type.
146
147 * Many long-running operations show progress eye-candy, even when
148 they are later backgrounded. Hide the eye-candy when the process
149 is sent to the background instead.
150 (merge a4fb76c lm/squelch-bg-progress later to maint).
151
152
153Performance, Internal Implementation, Development Support etc.
154
155 * "unsigned char [20]" used throughout the code to represent object
156 names are being converted into a semi-opaque "struct object_id".
157 This effort is expected to interfere with other topics in flight,
158 but hopefully will give us one extra level of abstraction in the
159 end, when completed.
160
161 * for_each_ref() callback functions were taught to name the objects
162 not with "unsigned char sha1[20]" but with "struct object_id".
163
164 * Catch a programmer mistake to feed a pointer not an array to
165 ARRAY_SIZE() macro, by using a couple of GCC extensions.
166
167 * Some error messages in "git config" were emitted without calling
168 the usual error() facility.
169
170 * When "add--interactive" splits a hunk into two overlapping hunks
171 and then let the user choose only one, it sometimes feeds an
172 incorrect patch text to "git apply". Add tests to demonstrate
173 this.
174
175 I have a slight suspicion that this may be
176 cf. <7vtzf77wjp.fsf@gitster.siamese.dyndns.org> coming back
177 and biting us (I seem to have said "let's run with this and see
178 what happens" back then).
179
180 * More line-ending tests.
181
182 * An earlier rewrite to use strbuf_getwholeline() instead of fgets(3)
183 to read packed-refs file revealed that the former is unacceptably
184 inefficient. It has been optimized by using getdelim(3) when
185 available.
186
187 * The refs API uses ref_lock struct which had its own "int fd", even
188 though the same file descriptor was in the lock struct it contains.
189 Clean-up the code to lose this redundant field.
190
191 * There was a dead code that used to handle "git pull --tags" and
192 show special-cased error message, which was made irrelevant when
193 the semantics of the option changed back in Git 1.9 days.
194 (merge 19d122b pt/pull-tags-error-diag later to maint).
195
196 * Help us to find broken test script that splits the body part of the
197 test by mistaken use of wrong kind of quotes.
198 (merge d93d5d5 jc/test-prereq-validate later to maint).
199
200 * Developer support to automatically detect broken &&-chain in the
201 test scripts is now turned on by default.
202 (merge 92b269f jk/test-chain-lint later to maint).
203
204 * Error reporting mechanism used in "refs" API has been made more
205 consistent.
206
207 * "git pull" has more test coverage now.
208
209 * "git pull" has become more aware of the options meant for
210 underlying "git fetch" and then learned to use parse-options
211 parser.
212
213 * Clarify in the Makefile a guideline to decide use of USE_NSEC.
214
215Also contains various documentation updates and code clean-ups.
216
217
218Fixes since v2.4
219----------------
220
221Unless otherwise noted, all the fixes since v2.4 in the maintenance
222track are contained in this release (see the maintenance releases'
223notes for details).
224
225 * Git 2.4 broke setting verbosity and progress levels on "git clone"
226 with native transports.
227 (merge 822f0c4 mh/clone-verbosity-fix later to maint).
228
229 * "git add -e" did not allow the user to abort the operation by
230 killing the editor.
231 (merge cb64800 jk/add-e-kill-editor later to maint).
232
233 * Memory usage of "git index-pack" has been trimmed by tens of
234 per-cent.
235 (merge f0e7f11 nd/slim-index-pack-memory-usage later to maint).
236
237 * "git rev-list --objects $old --not --all" to see if everything that
238 is reachable from $old is already connected to the existing refs
239 was very inefficient.
240 (merge b6e8a3b jk/still-interesting later to maint).
241
242 * "hash-object --literally" introduced in v2.2 was not prepared to
243 take a really long object type name.
244 (merge 1427a7f jc/hash-object later to maint).
245
246 * "git rebase --quiet" was not quite quiet when there is nothing to
247 do.
248 (merge 22946a9 jk/rebase-quiet-noop later to maint).
249
250 * The completion for "log --decorate=" parameter value was incorrect.
251 (merge af16bda sg/complete-decorate-full-not-long later to maint).
252
253 * "filter-branch" corrupted commit log message that ends with an
254 incomplete line on platforms with some "sed" implementations that
255 munge such a line. Work it around by avoiding to use "sed".
256 (merge df06201 jk/filter-branch-use-of-sed-on-incomplete-line later to maint).
257
258 * "git daemon" fails to build from the source under NO_IPV6
259 configuration (regression in 2.4).
260 (merge d358f77 jc/daemon-no-ipv6-for-2.4.1 later to maint).
261
262 * Some time ago, "git blame" (incorrectly) lost the convert_to_git()
263 call when synthesizing a fake "tip" commit that represents the
264 state in the working tree, which broke folks who record the history
265 with LF line ending to make their project portable across platforms
266 while terminating lines in their working tree files with CRLF for
267 their platform.
268 (merge 4bf256d tb/blame-resurrect-convert-to-git later to maint).
269
270 * We avoid setting core.worktree when the repository location is the
271 ".git" directory directly at the top level of the working tree, but
272 the code misdetected the case in which the working tree is at the
273 root level of the filesystem (which arguably is a silly thing to
274 do, but still valid).
275 (merge 84ccad8 jk/init-core-worktree-at-root later to maint).
276
277 * "git commit --date=now" or anything that relies on approxidate lost
278 the daylight-saving-time offset.
279 (merge f6e6362 jc/epochtime-wo-tz later to maint).
280
281 * Access to objects in repositories that borrow from another one on a
282 slow NFS server unnecessarily got more expensive due to recent code
283 becoming more cautious in a naive way not to lose objects to pruning.
284 (merge ee1c6c3 jk/prune-mtime later to maint).
285
286 * The codepaths that read .gitignore and .gitattributes files have been
287 taught that these files encoded in UTF-8 may have UTF-8 BOM marker at
288 the beginning; this makes it in line with what we do for configuration
289 files already.
290 (merge 27547e5 cn/bom-in-gitignore later to maint).
291
292 * a few helper scripts in the test suite did not report errors
293 correctly.
294 (merge de248e9 ep/fix-test-lib-functions-report later to maint).
295
296 * The default $HOME/.gitconfig file created upon "git config --global"
297 that edits it had incorrectly spelled user.name and user.email
298 entries in it.
299 (merge 7e11052 oh/fix-config-default-user-name-section later to maint).
300
301 * "git cat-file bl $blob" failed to barf even though there is no
302 object type that is "bl".
303 (merge b7994af jk/type-from-string-gently later to maint).
304
305 * The usual "git diff" when seeing a file turning into a directory
306 showed a patchset to remove the file and create all files in the
307 directory, but "git diff --no-index" simply refused to work. Also,
308 when asked to compare a file and a directory, imitate POSIX "diff"
309 and compare the file with the file with the same name in the
310 directory, instead of refusing to run.
311 (merge 0615173 jc/diff-no-index-d-f later to maint).
312
313 * "git rebase -i" moved the "current" command from "todo" to "done" a
314 bit too prematurely, losing a step when a "pick" did not even start.
315 (merge 8cbc57c ph/rebase-i-redo later to maint).
316
317 * The connection initiation code for "ssh" transport tried to absorb
318 differences between the stock "ssh" and Putty-supplied "plink" and
319 its derivatives, but the logic to tell that we are using "plink"
320 variants were too loose and falsely triggered when "plink" appeared
321 anywhere in the path (e.g. "/home/me/bin/uplink/ssh").
322 (merge baaf233 bc/connect-plink later to maint).
323
324 * We have prepended $GIT_EXEC_PATH and the path "git" is installed in
325 (typically "/usr/bin") to $PATH when invoking subprograms and hooks
326 for almost eternity, but the original use case the latter tried to
327 support was semi-bogus (i.e. install git to /opt/foo/git and run it
328 without having /opt/foo on $PATH), and more importantly it has
329 become less and less relevant as Git grew more mainstream (i.e. the
330 users would _want_ to have it on their $PATH). Stop prepending the
331 path in which "git" is installed to users' $PATH, as that would
332 interfere the command search order people depend on (e.g. they may
333 not like versions of programs that are unrelated to Git in /usr/bin
334 and want to override them by having different ones in /usr/local/bin
335 and have the latter directory earlier in their $PATH).
336 (merge a0b4507 jk/git-no-more-argv0-path-munging later to maint).
337
338 * core.excludesfile (defaulting to $XDG_HOME/git/ignore) is supposed
339 to be overridden by repository-specific .git/info/exclude file, but
340 the order was swapped from the beginning. This belatedly fixes it.
341 (merge 099d2d8 jc/gitignore-precedence later to maint).
342
343 * There was a commented-out (instead of being marked to expect
344 failure) test that documented a breakage that was fixed since the
345 test was written; turn it into a proper test.
346 (merge 66d2e04 sb/t1020-cleanup later to maint).
347
348 * The "log --decorate" enhancement in Git 2.4 that shows the commit
349 at the tip of the current branch e.g. "HEAD -> master", did not
350 work with --decorate=full.
351 (merge 429ad20 mg/log-decorate-HEAD later to maint).
352
353 * The ref API did not handle cases where 'refs/heads/xyzzy/frotz' is
354 removed at the same time as 'refs/heads/xyzzy' is added (or vice
355 versa) very well.
356 (merge c628edf mh/ref-directory-file later to maint).
357
358 * Multi-ref transaction support we merged a few releases ago
359 unnecessarily kept many file descriptors open, risking to fail with
360 resource exhaustion. This is for 2.4.x track.
361 (merge 185ce3a mh/write-refs-sooner-2.4 later to maint).
362
363 * "git bundle verify" did not diagnose extra parameters on the
364 command line.
365 (merge 7886cfa ps/bundle-verify-arg later to maint).
366
367 * Various documentation mark-up fixes to make the output more
368 consistent in general and also make AsciiDoctor (an alternative
369 formatter) happier.
370 (merge d0258b9 jk/asciidoc-markup-fix later to maint).
371 (merge ad3967a jk/stripspace-asciidoctor-fix later to maint).
372 (merge 975e382 ja/tutorial-asciidoctor-fix later to maint).
373
374 * The code to read pack-bitmap wanted to allocate a few hundred
375 pointers to a structure, but by mistake allocated and leaked memory
376 enough to hold that many actual structures. Correct the allocation
377 size and also have it on stack, as it is small enough.
378 (merge 599dc76 rs/plug-leak-in-pack-bitmaps later to maint).
379
380 * The pull.ff configuration was supposed to override the merge.ff
381 configuration, but it didn't.
382 (merge db9bb28 pt/pull-ff-vs-merge-ff later to maint).
383
384 * "git pull --log" and "git pull --no-log" worked as expected, but
385 "git pull --log=20" did not.
386 (merge 5061a44 pt/pull-log-n later to maint).
387
388 * "git rerere forget" in a repository without rerere enabled gave a
389 cryptic error message; it should be a silent no-op instead.
390 (merge 0544574 jk/rerere-forget-check-enabled later to maint).
391
392 * "git rebase -i" fired post-rewrite hook when it shouldn't (namely,
393 when it was told to stop sequencing with 'exec' insn).
394 (merge 141ff8f mm/rebase-i-post-rewrite-exec later to maint).
395
396 * Clarify that "log --raw" and "log --format=raw" are unrelated
397 concepts.
398 (merge 92de921 mm/log-format-raw-doc later to maint).
399
400 * Make "git stash something --help" error out, so that users can
401 safely say "git stash drop --help".
402 (merge 5ba2831 jk/stash-options later to maint).
403
404 * The clean/smudge interface did not work well when filtering an
405 empty contents (failed and then passed the empty input through).
406 It can be argued that a filter that produces anything but empty for
407 an empty input is nonsense, but if the user wants to do strange
408 things, then why not?
409 (merge f6a1e1e jh/filter-empty-contents later to maint).
410
411 * Communication between the HTTP server and http_backend process can
412 lead to a dead-lock when relaying a large ref negotiation request.
413 Diagnose the situation better, and mitigate it by reading such a
414 request first into core (to a reasonable limit).
415 (merge 636614f jk/http-backend-deadlock later to maint).
416
417 * "git clean pathspec..." tried to lstat(2) and complain even for
418 paths outside the given pathspec.
419 (merge 838d6a9 dt/clean-pathspec-filter-then-lstat later to maint).
420
421 * Recent "git prune" traverses young unreachable objects to safekeep
422 old objects in the reachability chain from them, which sometimes
423 caused error messages that are unnecessarily alarming.
424 (merge ce4e7b2 jk/squelch-missing-link-warning-for-unreachable later to maint).
425
426 * The configuration reader/writer uses mmap(2) interface to access
427 the files; when we find a directory, it barfed with "Out of memory?".
428 (merge 9ca0aaf jk/diagnose-config-mmap-failure later to maint).
429
430 * "color.diff.plain" was a misnomer; give it 'color.diff.context' as
431 a more logical synonym.
432 (merge 8dbf3eb jk/color-diff-plain-is-context later to maint).
433
434 * The setup code used to die when core.bare and core.worktree are set
435 inconsistently, even for commands that do not need working tree.
436 (merge fada767 jk/die-on-bogus-worktree-late later to maint).
437
438 * Recent Mac OS X updates breaks the logic to detect that the machine
439 is on the AC power in the sample pre-auto-gc script.
440 (merge c54c7b3 pa/auto-gc-mac-osx later to maint).
441
442 * "git commit --cleanup=scissors" was not careful enough to protect
443 against getting fooled by a line that looked like scissors.
444 (merge fbfa097 sg/commit-cleanup-scissors later to maint).
445
446 * "Have we lost a race with competing repack?" check was too
447 expensive, especially while receiving a huge object transfer
448 that runs index-pack (e.g. "clone" or "fetch").
449 (merge 0eeb077 jk/index-pack-reduce-recheck later to maint).
450
451 * The tcsh completion writes a bash scriptlet but that would have
452 failed for users with noclobber set.
453 (merge 0b1f688 af/tcsh-completion-noclobber later to maint).
454
455 * "git for-each-ref" reported "missing object" for 0{40} when it
456 encounters a broken ref. The lack of object whose name is 0{40} is
457 not the problem; the ref being broken is.
458 (merge 501cf47 mh/reporting-broken-refs-from-for-each-ref later to maint).
459
460 * Various fixes around "git am" that applies a patch to a history
461 that is not there yet.
462 (merge 6ea3b67 pt/am-abort-fix later to maint).
463
464 * "git fsck" used to ignore missing or invalid objects recorded in reflog.
465 (merge 19bf6c9 mh/fsck-reflog-entries later to maint).
466
467 * "git format-patch --ignore-if-upstream A..B" did not like to be fed
468 tags as boundary commits.
469 (merge 9b7a61d jc/do-not-feed-tags-to-clear-commit-marks later to maint).
470
471 * "git fetch --depth=<depth>" and "git clone --depth=<depth>" issued
472 a shallow transfer request even to an upload-pack that does not
473 support the capability.
474 (merge eb86a50 me/fetch-into-shallow-safety later to maint).
475
476 * "git rebase" did not exit with failure when format-patch it invoked
477 failed for whatever reason.
478 (merge 60d708b cb/rebase-am-exit-code later to maint).
479
480 * Fix a small bug in our use of umask() return value.
481 (merge 3096b2e jk/fix-refresh-utime later to maint).
482
483 * An ancient test framework enhancement to allow color was not
484 entirely correct; this makes it work even when tput needs to read
485 from the ~/.terminfo under the user's real HOME directory.
486 (merge d5c1b7c rh/test-color-avoid-terminfo-in-original-home later to maint).
487
488 * A minor bugfix when pack bitmap is used with "rev-list --count".
489 (merge c8a70d3 jk/rev-list-no-bitmap-while-pruning later to maint).
490
491 * "git config" failed to update the configuration file when the
492 underlying filesystem is incapable of renaming a file that is still
493 open.
494 (merge 7a64592 kb/config-unmap-before-renaming later to maint).
495
496 * Avoid possible ssize_t to int truncation.
497 (merge 6c8afe4 mh/strbuf-read-file-returns-ssize-t later to maint).
498
499 * When you say "!<ENTER>" while running say "git log", you'd confuse
500 yourself in the resulting shell, that may look as if you took
501 control back to the original shell you spawned "git log" from but
502 that isn't what is happening. To that new shell, we leaked
503 GIT_PAGER_IN_USE environment variable that was meant as a local
504 communication between the original "Git" and subprocesses that was
505 spawned by it after we launched the pager, which caused many
506 "interesting" things to happen, e.g. "git diff | cat" still paints
507 its output in color by default.
508
509 Stop leaking that environment variable to the pager's half of the
510 fork; we only need it on "Git" side when we spawn the pager.
511 (merge 124b519 jc/unexport-git-pager-in-use-in-pager later to maint).
512
513 * Abandoning an already applied change in "git rebase -i" with
514 "--continue" left CHERRY_PICK_HEAD and confused later steps.
515 (merge 0e0aff4 js/rebase-i-clean-up-upon-continue-to-skip later to maint).
516
517 * We used to ask libCURL to use the most secure authentication method
518 available when talking to an HTTP proxy only when we were told to
519 talk to one via configuration variables. We now ask libCURL to
520 always use the most secure authentication method, because the user
521 can tell libCURL to use an HTTP proxy via an environment variable
522 without using configuration variables.
523 (merge 5841520 et/http-proxyauth later to maint).
524
525 * A fix to a minor regression to "git fsck" in v2.2 era that started
526 complaining about a body-less tag object when it lacks a separator
527 empty line after its header to separate it with a non-existent body.
528 (merge 84d18c0 jc/fsck-retire-require-eoh later to maint).
529
530 * Code cleanups and documentation updates.
531 (merge 0269f96 mm/usage-log-l-can-take-regex later to maint).
532 (merge 64f2589 nd/t1509-chroot-test later to maint).
533 (merge d201a1e sb/test-bitmap-free-at-end later to maint).
534 (merge 05bfc7d sb/line-log-plug-pairdiff-leak later to maint).
535 (merge 846e5df pt/xdg-config-path later to maint).
536 (merge 1154aa4 jc/plug-fmt-merge-msg-leak later to maint).
537 (merge 319b678 jk/sha1-file-reduce-useless-warnings later to maint).
538 (merge 9a35c14 fg/document-commit-message-stripping later to maint).
539 (merge bbf431c ps/doc-packfile-vs-pack-file later to maint).
540 (merge 309a9e3 jk/skip-http-tests-under-no-curl later to maint).
541 (merge ccd593c dl/branch-error-message later to maint).
542 (merge 22570b6 rs/janitorial later to maint).
543 (merge 5c2a581 mc/commit-doc-grammofix later to maint).
544 (merge ce41720 ah/usage-strings later to maint).
545 (merge e6a268c sb/glossary-submodule later to maint).
546 (merge ec48a76 sb/submodule-doc-intro later to maint).
547 (merge 14f8b9b jk/clone-dissociate later to maint).
548 (merge 055c7e9 sb/pack-protocol-mention-smart-http later to maint).
549 (merge 7c37a5d jk/make-fix-dependencies later to maint).
550 (merge fc0aa39 sg/merge-summary-config later to maint).
551 (merge 329af6c pt/t0302-needs-sanity later to maint).
552 (merge d614f07 fk/doc-format-patch-vn later to maint).
553 (merge 72dbb36 sg/completion-commit-cleanup later to maint).
554 (merge e654eb2 es/utf8-stupid-compiler-workaround later to maint).
555 (merge 34b935c es/osx-header-pollutes-mask-macro later to maint).
556 (merge ab7fade jc/prompt-document-ps1-state-separator later to maint).
557 (merge 25f600e mm/describe-doc later to maint).
558 (merge 83fe167 mm/branch-doc-updates later to maint).
559 (merge 75d2e5a ls/hint-rev-list-count later to maint).
560 (merge edc8f71 cb/subtree-tests-update later to maint).
561 (merge 5330e6e sb/p5310-and-chain later to maint).
562 (merge c4ac525 tb/checkout-doc later to maint).
563 (merge e479c5f jk/pretty-encoding-doc later to maint).
564 (merge 7e837c6 ss/clone-guess-dir-name-simplify later to maint).