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[thirdparty/git.git] / Documentation / RelNotes / 2.20.0.txt
1 Git Release Notes
2 =================
3
4 Backward Compatibility Notes
5 ----------------------------
6
7 * "git branch -l <foo>" used to be a way to ask a reflog to be
8 created while creating a new branch, but that is no longer the
9 case. It is a short-hand for "git branch --list <foo>" now.
10
11 * "git push" into refs/tags/* hierarchy is rejected without getting
12 forced, but "git fetch" (misguidedly) used the "fast forwarding"
13 rule used for the refs/heads/* hierarchy; this has been corrected,
14 which means some fetches of tags that did not fail with older
15 version of Git will fail without "--force" with this version.
16
17 * "git help -a" now gives verbose output (same as "git help -av").
18 Those who want the old output may say "git help --no-verbose -a"..
19
20 * "git cpn --help", when "cpn" is an alias to, say, "cherry-pick -n",
21 reported only the alias expansion of "cpn" in earlier versions of
22 Git. It now runs "git cherry-pick --help" to show the manual page
23 of the command, while sending the alias expansion to the standard
24 error stream.
25
26 * "git send-email" learned to grab address-looking string on any
27 trailer whose name ends with "-by". This is a backward-incompatible
28 change. Adding "--suppress-cc=misc-by" on the command line, or
29 setting sendemail.suppresscc configuration variable to "misc-by",
30 can be used to disable this behaviour.
31
32
33 Updates since v2.19
34 -------------------
35
36 UI, Workflows & Features
37
38 * Running "git clone" against a project that contain two files with
39 pathnames that differ only in cases on a case insensitive
40 filesystem would result in one of the files lost because the
41 underlying filesystem is incapable of holding both at the same
42 time. An attempt is made to detect such a case and warn.
43
44 * "git checkout -b newbranch [HEAD]" should not have to do as much as
45 checking out a commit different from HEAD. An attempt is made to
46 optimize this special case.
47
48 * "git rev-list --stdin </dev/null" used to be an error; it now shows
49 no output without an error. "git rev-list --stdin --default HEAD"
50 still falls back to the given default when nothing is given on the
51 standard input.
52
53 * Lift code from GitHub to restrict delta computation so that an
54 object that exists in one fork is not made into a delta against
55 another object that does not appear in the same forked repository.
56
57 * "git format-patch" learned new "--interdiff" and "--range-diff"
58 options to explain the difference between this version and the
59 previous attempt in the cover letter (or after the three-dashes as
60 a comment).
61
62 * "git mailinfo" used in "git am" learned to make a best-effort
63 recovery of a patch corrupted by MUA that sends text/plain with
64 format=flawed option.
65 (merge 3aa4d81f88 rs/mailinfo-format-flowed later to maint).
66
67 * The rules used by "git push" and "git fetch" to determine if a ref
68 can or cannot be updated were inconsistent; specifically, fetching
69 to update existing tags were allowed even though tags are supposed
70 to be unmoving anchoring points. "git fetch" was taught to forbid
71 updates to existing tags without the "--force" option.
72
73 * "git multi-pack-index" learned to detect corruption in the .midx
74 file it uses, and this feature has been integrated into "git fsck".
75
76 * Generation of (experimental) commit-graph files have so far been
77 fairly silent, even though it takes noticeable amount of time in a
78 meaningfully large repository. The users will now see progress
79 output.
80
81 * The minimum version of Windows supported by Windows port of Git is
82 now set to Vista.
83
84 * The completion script (in contrib/) learned to complete a handful of
85 options "git stash list" command takes.
86
87 * The completion script (in contrib/) learned that "git fetch
88 --multiple" only takes remote names as arguments and no refspecs.
89
90 * "git status" learns to show progress bar when refreshing the index
91 takes a long time.
92 (merge ae9af12287 nd/status-refresh-progress later to maint).
93
94 * "git help -a" and "git help -av" give different pieces of
95 information, and generally the "verbose" version is more friendly
96 to the new users. "git help -a" by default now uses the more
97 verbose output (with "--no-verbose", you can go back to the
98 original). Also "git help -av" now lists aliases and external
99 commands, which it did not used to.
100
101 * Unlike "grep", "git grep" by default recurses to the whole tree.
102 The command learned "git grep --recursive" option, so that "git
103 grep --no-recursive" can serve as a synonym to setting the
104 max-depth to 0.
105
106 * When pushing into a repository that borrows its objects from an
107 alternate object store, "git receive-pack" that responds to the
108 push request on the other side lists the tips of refs in the
109 alternate to reduce the amount of objects transferred. This
110 sometimes is detrimental when the number of refs in the alternate
111 is absurdly large, in which case the bandwidth saved in potentially
112 fewer objects transferred is wasted in excessively large ref
113 advertisement. The alternate refs that are advertised are now
114 configurable with a pair of configuration variables.
115
116 * "git cmd --help" when "cmd" is aliased used to only say "cmd is
117 aliased to ...". Now it shows that to the standard error stream
118 and runs "git $cmd --help" where $cmd is the first word of the
119 alias expansion.
120
121 * The documentation of "git gc" has been updated to mention that it
122 is no longer limited to "pruning away crufts" but also updates
123 ancillary files like commit-graph as a part of repository
124 optimization.
125
126 * "git p4 unshelve" improvements.
127
128 * The logic to select the default user name and e-mail on Windows has
129 been improved.
130 (merge 501afcb8b0 js/mingw-default-ident later to maint).
131
132 * The "rev-list --filter" feature learned to exclude all trees via
133 "tree:0" filter.
134
135 * "git send-email" learned to grab address-looking string on any
136 trailer whose name ends with "-by"; --suppress-cc=misc-by on the
137 command line, or setting sendemail.suppresscc configuration
138 variable to "misc-by", can be used to disable this behaviour.
139
140 * Developer builds now uses -Wunused-function compilation option.
141
142 * One of our CI tests to run with "unusual/experimental/random"
143 settings now also uses commit-graph and midx.
144
145 * "git mergetool" learned to take the "--[no-]gui" option, just like
146 "git difftool" does.
147
148 * "git rebase -i" learned a new insn, 'break', that the user can
149 insert in the to-do list. Upon hitting it, the command returns
150 control back to the user.
151
152 * New "--pretty=format:" placeholders %GF and %GP that show the GPG
153 key fingerprints have been invented.
154
155 * On platforms with recent cURL library, http.sslBackend configuration
156 variable can be used to choose a different SSL backend at runtime.
157 The Windows port uses this mechanism to switch between OpenSSL and
158 Secure Channel while talking over the HTTPS protocol.
159
160 * "git send-email" learned to disable SMTP authentication via the
161 "--smtp-auth=none" option, even when the smtp username is given
162 (which turns the authentication on by default).
163
164 * A fourth class of configuration files (in addition to the
165 traditional "system wide", "per user in the $HOME directory" and
166 "per repository in the $GIT_DIR/config") has been introduced so
167 that different worktrees that share the same repository (hence the
168 same $GIT_DIR/config file) can use different customization.
169
170 * A pattern with '**' that does not have a slash on either side used
171 to be an invalid one, but the code now treats such double-asterisks
172 the same way as two normal asterisks that happen to be adjacent to
173 each other.
174 (merge e5bbe09e88 nd/wildmatch-double-asterisk later to maint).
175
176 * The "--no-patch" option, which can be used to get a high-level
177 overview without the actual line-by-line patch difference shown, of
178 the "range-diff" command was earlier broken, which has been
179 corrected.
180
181 * The recently merged "rebase in C" has an escape hatch to use the
182 scripted version when necessary, but it hasn't been documented,
183 which has been corrected.
184
185
186 Performance, Internal Implementation, Development Support etc.
187
188 * When there are too many packfiles in a repository (which is not
189 recommended), looking up an object in these would require
190 consulting many pack .idx files; a new mechanism to have a single
191 file that consolidates all of these .idx files is introduced.
192
193 * "git submodule update" is getting rewritten piece-by-piece into C.
194
195 * The code for computing history reachability has been shuffled,
196 obtained a bunch of new tests to cover them, and then being
197 improved.
198
199 * The unpack_trees() API used in checking out a branch and merging
200 walks one or more trees along with the index. When the cache-tree
201 in the index tells us that we are walking a tree whose flattened
202 contents is known (i.e. matches a span in the index), as linearly
203 scanning a span in the index is much more efficient than having to
204 open tree objects recursively and listing their entries, the walk
205 can be optimized, which has been done.
206
207 * When creating a thin pack, which allows objects to be made into a
208 delta against another object that is not in the resulting pack but
209 is known to be present on the receiving end, the code learned to
210 take advantage of the reachability bitmap; this allows the server
211 to send a delta against a base beyond the "boundary" commit.
212
213 * spatch transformation to replace boolean uses of !hashcmp() to
214 newly introduced oideq() is added, and applied, to regain
215 performance lost due to support of multiple hash algorithms.
216
217 * Fix a bug in which the same path could be registered under multiple
218 worktree entries if the path was missing (for instance, was removed
219 manually). Also, as a convenience, expand the number of cases in
220 which --force is applicable.
221
222 * Split Documentation/config.txt for easier maintenance.
223 (merge 6014363f0b nd/config-split later to maint).
224
225 * Test helper binaries clean-up.
226 (merge c9a1f4161f nd/test-tool later to maint).
227
228 * Various tests have been updated to make it easier to swap the
229 hash function used for object identification.
230 (merge ae0c89d41b bc/hash-independent-tests later to maint).
231
232 * Update fsck.skipList implementation and documentation.
233 (merge 371a655074 ab/fsck-skiplist later to maint).
234
235 * An alias that expands to another alias has so far been forbidden,
236 but now it is allowed to create such an alias.
237
238 * Various test scripts have been updated for style and also correct
239 handling of exit status of various commands.
240
241 * "gc --auto" ended up calling exit(-1) upon error, which has been
242 corrected to use exit(1). Also the error reporting behaviour when
243 daemonized has been updated to exit with zero status when stopping
244 due to a previously discovered error (which implies there is no
245 point running gc to improve the situation); we used to exit with
246 failure in such a case.
247
248 * Various codepaths in the core-ish part learned to work on an
249 arbitrary in-core index structure, not necessarily the default
250 instance "the_index".
251 (merge b3c7eef9b0 nd/the-index later to maint).
252
253 * Code clean-up in the internal machinery used by "git status" and
254 "git commit --dry-run".
255 (merge 73ba5d78b4 ss/wt-status-committable later to maint).
256
257 * Some environment variables that control the runtime options of Git
258 used during tests are getting renamed for consistency.
259 (merge 4231d1ba99 bp/rename-test-env-var later to maint).
260
261 * A new extension to the index file has been introduced, which allows
262 the index file to be read in parallel for performance.
263
264 * The oidset API was built on top of the oidmap API which in turn is
265 on the hashmap API. Replace the implementation to build on top of
266 the khash API and gain performance.
267
268 * Over some transports, fetching objects with an exact commit object
269 name can be done without first seeing the ref advertisements. The
270 code has been optimized to exploit this.
271
272 * In a partial clone that will lazily be hydrated from the
273 originating repository, we generally want to avoid "does this
274 object exist (locally)?" on objects that we deliberately omitted
275 when we created the clone. The cache-tree codepath (which is used
276 to write a tree object out of the index) however insisted that the
277 object exists, even for paths that are outside of the partial
278 checkout area. The code has been updated to avoid such a check.
279
280 * To help developers, an EditorConfig file that attempts to follow
281 the project convention has been added.
282 (merge b548d698a0 bc/editorconfig later to maint).
283
284 * The result of coverage test can be combined with "git blame" to
285 check the test coverage of code introduced recently with a new
286 'coverage-diff' tool (in contrib/).
287 (merge 783faedd65 ds/coverage-diff later to maint).
288
289 * An experiment to fuzz test a few areas, hopefully we can gain more
290 coverage to various areas.
291
292 * More codepaths are moving away from hardcoded hash sizes.
293
294 * The way the Windows port figures out the current directory has been
295 improved.
296
297 * The way DLLs are loaded on the Windows port has been improved.
298
299 * Some tests have been reorganized and renamed; "ls t/" now gives a
300 better overview of what is tested for these scripts than before.
301
302 * "git rebase" and "git rebase -i" have been reimplemented in C.
303
304 * Windows port learned to use nano-second resolution file timestamps.
305
306 * The overly large Documentation/config.txt file have been split into
307 million little pieces. This potentially allows each individual piece
308 included into the manual page of the command it affects more easily.
309
310 * Replace three string-list instances used as look-up tables in "git
311 fetch" with hashmaps.
312
313 * Unify code to read the author-script used in "git am" and the
314 commands that use the sequencer machinery, e.g. "git rebase -i".
315
316 * In preparation to the day when we can deprecate and remove the
317 "rebase -p", make sure we can skip and later remove tests for
318 it.
319
320 * The history traversal used to implement the tag-following has been
321 optimized by introducing a new helper.
322
323 * The helper function to refresh the cached stat information in the
324 in-core index has learned to perform the lstat() part of the
325 operation in parallel on multi-core platforms.
326
327 * The code to traverse objects for reachability, used to decide what
328 objects are unreferenced and expendable, have been taught to also
329 consider per-worktree refs of other worktrees as starting points to
330 prevent data loss.
331
332 * "git add" needs to internally run "diff-files" equivalent, and the
333 codepath learned the same optimization as "diff-files" has to run
334 lstat(2) in parallel to find which paths have been updated in the
335 working tree.
336
337 * The procedure to install dependencies before testing at Travis CI
338 is getting revamped for both simplicity and flexibility, taking
339 advantage of the recent move to the vm-based environment.
340
341 * The support for format-patch (and send-email) by the command-line
342 completion script (in contrib/) has been simplified a bit.
343
344 * The revision walker machinery learned to take advantage of the
345 commit generation numbers stored in the commit-graph file.
346
347 * The codebase has been cleaned up to reduce "#ifndef NO_PTHREADS".
348
349 * The way -lcurl library gets linked has been simplified by taking
350 advantage of the fact that we can just ask curl-config command how.
351
352 * Various functions have been audited for "-Wunused-parameter" warnings
353 and bugs in them got fixed.
354
355 * A sanity check for start-up sequence has been added in the config
356 API codepath.
357
358 * The build procedure to link for fuzzing test has been made
359 customizable with a new Makefile variable.
360
361 * The way "git rebase" parses and forwards the command line options
362 meant for underlying "git am" has been revamped, which fixed for
363 options with parameters that were not passed correctly.
364
365
366 Fixes since v2.19
367 -----------------
368
369 * "git interpret-trailers" and its underlying machinery had a buggy
370 code that attempted to ignore patch text after commit log message,
371 which triggered in various codepaths that will always get the log
372 message alone and never get such an input.
373 (merge 66e83d9b41 jk/trailer-fixes later to maint).
374
375 * Malformed or crafted data in packstream can make our code attempt
376 to read or write past the allocated buffer and abort, instead of
377 reporting an error, which has been fixed.
378
379 * "git rebase -i" did not clear the state files correctly when a run
380 of "squash/fixup" is aborted and then the user manually amended the
381 commit instead, which has been corrected.
382 (merge 10d2f35436 js/rebase-i-autosquash-fix later to maint).
383
384 * When fsmonitor is in use, after operation on submodules updates
385 .gitmodules, we lost track of the fact that we did so and relied on
386 stale fsmonitor data.
387 (merge 43f1180814 bp/mv-submodules-with-fsmonitor later to maint).
388
389 * Fix for a long-standing bug that leaves the index file corrupt when
390 it shrinks during a partial commit.
391 (merge 6c003d6ffb jk/reopen-tempfile-truncate later to maint).
392
393 * Further fix for O_APPEND emulation on Windows
394 (merge eeaf7ddac7 js/mingw-o-append later to maint).
395
396 * A corner case bugfix in "git rerere" code.
397 (merge ad2bf0d9b4 en/rerere-multi-stage-1-fix later to maint).
398
399 * "git add ':(attr:foo)'" is not supported and is supposed to be
400 rejected while the command line arguments are parsed, but we fail
401 to reject such a command line upfront.
402 (merge 84d938b732 nd/attr-pathspec-fix later to maint).
403
404 * Recent update broke the reachability algorithm when refs (e.g.
405 tags) that point at objects that are not commit were involved,
406 which has been fixed.
407
408 * "git rebase" etc. in Git 2.19 fails to abort when given an empty
409 commit log message as result of editing, which has been corrected.
410 (merge a3ec9eaf38 en/sequencer-empty-edit-result-aborts later to maint).
411
412 * The code to backfill objects in lazily cloned repository did not
413 work correctly, which has been corrected.
414 (merge e68302011c jt/lazy-object-fetch-fix later to maint).
415
416 * Update error messages given by "git remote" and make them consistent.
417 (merge 5025425dff ms/remote-error-message-update later to maint).
418
419 * "git update-ref" learned to make both "--no-deref" and "--stdin"
420 work at the same time.
421 (merge d345e9fbe7 en/update-ref-no-deref-stdin later to maint).
422
423 * Recently added "range-diff" had a corner-case bug to cause it
424 segfault, which has been corrected.
425 (merge e467a90c7a tg/range-diff-corner-case-fix later to maint).
426
427 * The recently introduced commit-graph auxiliary data is incompatible
428 with mechanisms such as replace & grafts that "breaks" immutable
429 nature of the object reference relationship. Disable optimizations
430 based on its use (and updating existing commit-graph) when these
431 incompatible features are in use in the repository.
432 (merge 829a321569 ds/commit-graph-with-grafts later to maint).
433
434 * The mailmap file update.
435 (merge 255eb03edf jn/mailmap-update later to maint).
436
437 * The code in "git status" sometimes hit an assertion failure. This
438 was caused by a structure that was reused without cleaning the data
439 used for the first run, which has been corrected.
440 (merge 3e73cc62c0 en/status-multiple-renames-to-the-same-target-fix later to maint).
441
442 * "git fetch $repo $object" in a partial clone did not correctly
443 fetch the asked-for object that is referenced by an object in
444 promisor packfile, which has been fixed.
445
446 * A corner-case bugfix.
447 (merge c5cbb27cb5 sm/show-superproject-while-conflicted later to maint).
448
449 * Various fixes to "diff --color-moved-ws".
450
451 * A partial clone that is configured to lazily fetch missing objects
452 will on-demand issue a "git fetch" request to the originating
453 repository to fill not-yet-obtained objects. The request has been
454 optimized for requesting a tree object (and not the leaf blob
455 objects contained in it) by telling the originating repository that
456 no blobs are needed.
457 (merge 4c7f9567ea jt/non-blob-lazy-fetch later to maint).
458
459 * The codepath to support the experimental split-index mode had
460 remaining "racily clean" issues fixed.
461 (merge 4c490f3d32 sg/split-index-racefix later to maint).
462
463 * "git log --graph" showing an octopus merge sometimes miscounted the
464 number of display columns it is consuming to show the merge and its
465 parent commits, which has been corrected.
466 (merge 04005834ed np/log-graph-octopus-fix later to maint).
467
468 * "git range-diff" did not work well when the compared ranges had
469 changes in submodules and the "--submodule=log" was used.
470
471 * The implementation of run_command() API on the UNIX platforms had a
472 bug that caused a command not on $PATH to be found in the current
473 directory.
474 (merge f67b980771 jk/run-command-notdot later to maint).
475
476 * A mutex used in "git pack-objects" were not correctly initialized
477 and this caused "git repack" to dump core on Windows.
478 (merge 34204c8166 js/pack-objects-mutex-init-fix later to maint).
479
480 * Under certain circumstances, "git diff D:/a/b/c D:/a/b/d" on
481 Windows would strip initial parts from the paths because they
482 were not recognized as absolute, which has been corrected.
483 (merge ffd04e92e2 js/diff-notice-has-drive-prefix later to maint).
484
485 * The receive.denyCurrentBranch=updateInstead codepath kicked in even
486 when the push should have been rejected due to other reasons, such
487 as it does not fast-forward or the update-hook rejects it, which
488 has been corrected.
489 (merge b072a25fad jc/receive-deny-current-branch-fix later to maint).
490
491 * The logic to determine the archive type "git archive" uses did not
492 correctly kick in for "git archive --remote", which has been
493 corrected.
494
495 * "git repack" in a shallow clone did not correctly update the
496 shallow points in the repository, leading to a repository that
497 does not pass fsck.
498 (merge 5dcfbf564c js/shallow-and-fetch-prune later to maint).
499
500 * Some codepaths failed to form a proper URL when .gitmodules record
501 the URL to a submodule repository as relative to the repository of
502 superproject, which has been corrected.
503 (merge e0a862fdaf sb/submodule-url-to-absolute later to maint).
504
505 * "git fetch" over protocol v2 into a shallow repository failed to
506 fetch full history behind a new tip of history that was diverged
507 before the cut-off point of the history that was previously fetched
508 shallowly.
509
510 * The command line completion machinery (in contrib/) has been
511 updated to allow the completion script to tweak the list of options
512 that are reported by the parse-options machinery correctly.
513 (merge 276b49ff34 nd/completion-negation later to maint).
514
515 * Operations on promisor objects make sense in the context of only a
516 small subset of the commands that internally use the revisions
517 machinery, but the "--exclude-promisor-objects" option were taken
518 and led to nonsense results by commands like "log", to which it
519 didn't make much sense. This has been corrected.
520 (merge 669b1d2aae md/exclude-promisor-objects-fix later to maint).
521
522 * The "container" mode of TravisCI is going away. Our .travis.yml
523 file is getting prepared for the transition.
524 (merge 32ee384be8 ss/travis-ci-force-vm-mode later to maint).
525
526 * Our test scripts can now take the '-V' option as a synonym for the
527 '--verbose-log' option.
528 (merge a5f52c6dab sg/test-verbose-log later to maint).
529
530 * A regression in Git 2.12 era made "git fsck" fall into an infinite
531 loop while processing truncated loose objects.
532 (merge 18ad13e5b2 jk/detect-truncated-zlib-input later to maint).
533
534 * "git ls-remote $there foo" was broken by recent update for the
535 protocol v2 and stopped showing refs that match 'foo' that are not
536 refs/{heads,tags}/foo, which has been fixed.
537 (merge 6a139cdd74 jk/proto-v2-ref-prefix-fix later to maint).
538
539 * Additional comment on a tricky piece of code to help developers.
540 (merge 0afbe3e806 jk/stream-pack-non-delta-clarification later to maint).
541
542 * A couple of tests used to leave the repository in a state that is
543 deliberately corrupt, which have been corrected.
544 (merge aa984dbe5e ab/pack-tests-cleanup later to maint).
545
546 * The submodule support has been updated to read from the blob at
547 HEAD:.gitmodules when the .gitmodules file is missing from the
548 working tree.
549 (merge 2b1257e463 ao/submodule-wo-gitmodules-checked-out later to maint).
550
551 * "git fetch" was a bit loose in parsing responses from the other side
552 when talking over the protocol v2.
553
554 * "git rev-parse --exclude=* --branches --branches" (i.e. first
555 saying "add only things that do not match '*' out of all branches"
556 and then adding all branches, without any exclusion this time")
557 worked as expected, but "--exclude=* --all --all" did not work the
558 same way, which has been fixed.
559 (merge 5221048092 ag/rev-parse-all-exclude-fix later to maint).
560
561 * "git send-email --transfer-encoding=..." in recent versions of Git
562 sometimes produced an empty "Content-Transfer-Encoding:" header,
563 which has been corrected.
564 (merge 3c88e46f1a al/send-email-auto-cte-fixup later to maint).
565
566 * The interface into "xdiff" library used to discover the offset and
567 size of a generated patch hunk by first formatting it into the
568 textual hunk header "@@ -n,m +k,l @@" and then parsing the numbers
569 out. A new interface has been introduced to allow callers a more
570 direct access to them.
571 (merge 5eade0746e jk/xdiff-interface later to maint).
572
573 * Pathspec matching against a tree object were buggy when negative
574 pathspec elements were involved, which has been fixed.
575 (merge b7845cebc0 nd/tree-walk-path-exclusion later to maint).
576
577 * "git merge" and "git pull" that merges into an unborn branch used
578 to completely ignore "--verify-signatures", which has been
579 corrected.
580 (merge 01a31f3bca jk/verify-sig-merge-into-void later to maint).
581
582 * "git rebase --autostash" did not correctly re-attach the HEAD at times.
583
584 * "rev-parse --exclude=<pattern> --branches=<pattern>" etc. did not
585 quite work, which has been corrected.
586 (merge 9ab9b5df0e ra/rev-parse-exclude-glob later to maint).
587
588 * When editing a patch in a "git add -i" session, a hunk could be
589 made to no-op. The "git apply" program used to reject a patch with
590 such a no-op hunk to catch user mistakes, but it is now updated to
591 explicitly allow a no-op hunk in an edited patch.
592 (merge 22cb3835b9 js/apply-recount-allow-noop later to maint).
593
594 * The URL to an MSDN page in a comment has been updated.
595 (merge 2ef2ae2917 js/mingw-msdn-url later to maint).
596
597 * "git ls-remote --sort=<thing>" can feed an object that is not yet
598 available into the comparison machinery and segfault, which has
599 been corrected to check such a request upfront and reject it.
600
601 * When "git bundle" aborts due to an empty commit ranges
602 (i.e. resulting in an empty pack), it left a file descriptor to an
603 lockfile open, which resulted in leftover lockfile on Windows where
604 you cannot remove a file with an open file descriptor. This has
605 been corrected.
606 (merge 2c8ee1f53c jk/close-duped-fd-before-unlock-for-bundle later to maint).
607
608 * Code cleanup, docfix, build fix, etc.
609 (merge 96a7501aad ts/doc-build-manpage-xsl-quietly later to maint).
610 (merge b9b07efdb2 tg/conflict-marker-size later to maint).
611 (merge fa0aeea770 sg/doc-trace-appends later to maint).
612 (merge d64324cb60 tb/void-check-attr later to maint).
613 (merge c3b9bc94b9 en/double-semicolon-fix later to maint).
614 (merge 79336116f5 sg/t3701-tighten-trace later to maint).
615 (merge 801fa63a90 jk/dev-build-format-security later to maint).
616 (merge 0597dd62ba sb/string-list-remove-unused later to maint).
617 (merge db2d36fad8 bw/protocol-v2 later to maint).
618 (merge 456d7cd3a9 sg/split-index-test later to maint).
619 (merge 7b6057c852 tq/refs-internal-comment-fix later to maint).
620 (merge 29e8dc50ad tg/t5551-with-curl-7.61.1 later to maint).
621 (merge 55f6bce2c9 fe/doc-updates later to maint).
622 (merge 7987d2232d jk/check-everything-connected-is-long-gone later to maint).
623 (merge 4ba3c9be47 dz/credential-doc-url-matching-rules later to maint).
624 (merge 4c399442f7 ma/commit-graph-docs later to maint).
625 (merge fc0503b04e ma/t1400-undebug-test later to maint).
626 (merge e56b53553a nd/packobjectshook-doc-fix later to maint).
627 (merge c56170a0c4 ma/mailing-list-address-in-git-help later to maint).
628 (merge 6e8fc70fce rs/sequencer-oidset-insert-avoids-dups later to maint).
629 (merge ad0b8f9575 mw/doc-typofixes later to maint).
630 (merge d9f079ad1a jc/how-to-document-api later to maint).
631 (merge b1492bf315 ma/t7005-bash-workaround later to maint).
632 (merge ac1f98a0df du/rev-parse-is-plumbing later to maint).
633 (merge ca8ed443a5 mm/doc-no-dashed-git later to maint).
634 (merge ce366a8144 du/get-tar-commit-id-is-plumbing later to maint).
635 (merge 61018fe9e0 du/cherry-is-plumbing later to maint).
636 (merge c7e5fe79b9 sb/strbuf-h-update later to maint).
637 (merge 8d2008196b tq/branch-create-wo-branch-get later to maint).
638 (merge 2e3c894f4b tq/branch-style-fix later to maint).
639 (merge c5d844af9c sg/doc-show-branch-typofix later to maint).
640 (merge 081d91618b ah/doc-updates later to maint).
641 (merge b84c783882 jc/cocci-preincr later to maint).
642 (merge 5e495f8122 uk/merge-subtree-doc-update later to maint).
643 (merge aaaa881822 jk/uploadpack-packobjectshook-fix later to maint).
644 (merge 3063477445 tb/char-may-be-unsigned later to maint).
645 (merge 8c64bc9420 sg/test-rebase-editor-fix later to maint).
646 (merge 71571cd7d6 ma/sequencer-do-reset-saner-loop-termination later to maint).
647 (merge 9a4cb8781e cb/notes-freeing-always-null-fix later to maint).