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1Git v2.37 Release Notes
2=======================
3
4UI, Workflows & Features
5
6 * "vimdiff[123]" mergetool drivers have been reimplemented with a
7 more generic layout mechanism.
8
9 * "git -v" and "git -h" are now understood as "git --version" and
10 "git --help".
11
12 * The temporary files fed to external diff command are now generated
13 inside a new temporary directory under the same basename.
14
15 * "git log --since=X" will stop traversal upon seeing a commit that
16 is older than X, but there may be commits behind it that is younger
17 than X when the commit was created with a faulty clock. A new
18 option is added to keep digging without stopping, and instead
19 filter out commits with timestamp older than X.
20
21 * "git -c branch.autosetupmerge=simple branch $A $B" will set the $B
22 as $A's upstream only when $A and $B shares the same name, and "git
23 -c push.default=simple" on branch $A would push to update the
24 branch $A at the remote $B came from. Also more places use the
25 sole remote, if exists, before defaulting to 'origin'.
26
27 * A new doc has been added that lists tips for tools to work with
28 Git's codebase.
29
30 * "git remote -v" now shows the list-objects-filter used during
31 fetching from the remote, if available.
32
33 * With the new http.curloptResolve configuration, the CURLOPT_RESOLVE
34 mechanism that allows cURL based applications to use pre-resolved
35 IP addresses for the requests is exposed to the scripts.
36
37 * "git add -i" was rewritten in C some time ago and has been in
38 testing; the reimplementation is now exposed to general public by
39 default.
40
41 * Deprecate non-cone mode of the sparse-checkout feature.
42
43 * Introduce a filesystem-dependent mechanism to optimize the way the
44 bits for many loose object files are ensured to hit the disk
45 platter.
46
47 * The "do not remove the directory the user started Git in" logic,
48 when Git cannot tell where that directory is, is disabled. Earlier
49 we refused to run in such a case.
50
51 * A mechanism to pack unreachable objects into a "cruft pack",
52 instead of ejecting them into loose form to be reclaimed later, has
53 been introduced.
54
55 * Update the doctype written in gitweb output to xhtml5.
56
57 * The "transfer.credentialsInURL" configuration variable controls what
58 happens when a URL with embedded login credential is used on either
59 "fetch" or "push". Credentials are currently only detected in
60 `remote.<name>.url` config, not `remote.<name>.pushurl`.
61
62 * "git revert" learns "--reference" option to use more human-readable
63 reference to the commit it reverts in the message template it
64 prepares for the user.
65
66 * Various error messages that talk about the removal of
67 "--preserve-merges" in "rebase" have been strengthened, and "rebase
68 --abort" learned to get out of a state that was left by an earlier
69 use of the option.
70
71
72Performance, Internal Implementation, Development Support etc.
73
74 * The performance of the "untracked cache" feature has been improved
75 when "--untracked-files=<mode>" and "status.showUntrackedFiles"
76 are combined.
77
78 * "git stash" works better with sparse index entries.
79
80 * "git show :<path>" learned to work better with the sparse-index
81 feature.
82
83 * Introduce and apply coccinelle rule to discourage an explicit
84 comparison between a pointer and NULL, and applies the clean-up to
85 the maintenance track.
86
87 * Preliminary code refactoring around transport and bundle code.
88
89 * "sparse-checkout" learns to work better with the sparse-index
90 feature.
91
92 * A workflow change for translators are being proposed. git.pot is
93 no longer version controlled and it is local responsibility of
94 translators to generate it.
95
96 * Plug the memory leaks from the trickiest API of all, the revision
97 walker.
98
99 * Rename .env_array member to .env in the child_process structure.
100
101 * The fsmonitor--daemon handles even more corner cases when
102 watching filesystem events.
103
104 * A new bug() and BUG_if_bug() API is introduced to make it easier to
105 uniformly log "detect multiple bugs and abort in the end" pattern.
106
107
108Fixes since v2.36
109-----------------
110
111 * "git submodule update" without pathspec should silently skip an
112 uninitialized submodule, but it started to become noisy by mistake.
113 (merge 4f1ccef87c gc/submodule-update-part2 later to maint).
114
115 * "diff-tree --stdin" has been broken for about a year, but 2.36
116 release broke it even worse by breaking running the command with
117 <pathspec>, which in turn broke "gitk" and got noticed. This has
118 been corrected by aligning its behaviour to that of "log".
119 (merge f8781bfda3 jc/diff-tree-stdin-fix later to maint).
120
121 * Regression fix for 2.36 where "git name-rev" started to sometimes
122 reference strings after they are freed.
123 (merge 45a14f578e rs/name-rev-fix-free-after-use later to maint).
124
125 * "git show <commit1> <commit2>... -- <pathspec>" lost the pathspec
126 when showing the second and subsequent commits, which has been
127 corrected.
128 (merge 5cdb38458e jc/show-pathspec-fix later to maint).
129
130 * "git fast-export -- <pathspec>" lost the pathspec when showing the
131 second and subsequent commits, which has been corrected.
132 (merge d1c25272f5 rs/fast-export-pathspec-fix later to maint).
133
134 * "git format-patch <args> -- <pathspec>" lost the pathspec when
135 showing the second and subsequent commits, which has been
136 corrected.
137 (merge 91f8f7e46f rs/format-patch-pathspec-fix later to maint).
138
139 * "git clone --origin X" leaked piece of memory that held value read
140 from the clone.defaultRemoteName configuration variable, which has
141 been plugged.
142 (merge 6dfadc8981 jc/clone-remote-name-leak-fix later to maint).
143
144 * Get rid of a bogus and over-eager coccinelle rule.
145 (merge 08bdd3a185 jc/cocci-xstrdup-or-null-fix later to maint).
146
147 * The path taken by "git multi-pack-index" command from the end user
148 was compared with path internally prepared by the tool without first
149 normalizing, which lead to duplicated paths not being noticed,
150 which has been corrected.
151 (merge 11f9e8de3d ds/midx-normalize-pathname-before-comparison later to maint).
152
153 * Correct choices of C compilers used in various CI jobs.
154 (merge 3506cae04f ab/cc-package-fixes later to maint).
155
156 * Various cleanups to "git p4".
157 (merge 4ff0108d9e jh/p4-various-fixups later to maint).
158
159 * The progress meter of "git blame" was showing incorrect numbers
160 when processing only parts of the file.
161 (merge e5f5d7d42e ea/progress-partial-blame later to maint).
162
163 * "git rebase --keep-base <upstream> <branch-to-rebase>" computed the
164 commit to rebase onto incorrectly, which has been corrected.
165 (merge 9e5ebe9668 ah/rebase-keep-base-fix later to maint).
166
167 * Fix a leak of FILE * in an error codepath.
168 (merge c0befa0c03 kt/commit-graph-plug-fp-leak-on-error later to maint).
169
170 * Avoid problems from interaction between malloc_check and address
171 sanitizer.
172 (merge 067109a5e7 pw/test-malloc-with-sanitize-address later to maint).
173
174 * The commit summary shown after making a commit is matched to what
175 is given in "git status" not to use the break-rewrite heuristics.
176 (merge 84792322ed rs/commit-summary-wo-break-rewrite later to maint).
177
178 * Update a few end-user facing messages around EOL conversion.
179 (merge c970d30c2c ah/convert-warning-message later to maint).
180
181 * Trace2 documentation updates.
182 (merge a6c80c313c js/trace2-doc-fixes later to maint).
183
184 * Build procedure fixup.
185 (merge 1fbfd96f50 mg/detect-compiler-in-c-locale later to maint).
186
187 * "git pull" without "--recurse-submodules=<arg>" made
188 submodule.recurse take precedence over fetch.recurseSubmodules by
189 mistake, which has been corrected.
190 (merge 5819417365 gc/pull-recurse-submodules later to maint).
191
192 * "git bisect" was too silent before it is ready to start computing
193 the actual bisection, which has been corrected.
194 (merge f11046e6de cd/bisect-messages-from-pre-flight-states later to maint).
195
196 * macOS CI jobs have been occasionally flaky due to tentative version
197 skew between perforce and the homebrew packager. Instead of
198 failing the whole CI job, just let it skip the p4 tests when this
199 happens.
200 (merge f15e00b463 cb/ci-make-p4-optional later to maint).
201
202 * A bit of test framework fixes with a few fixes to issues found by
203 valgrind.
204 (merge 7c898554d7 ab/valgrind-fixes later to maint).
205
206 * "git archive --add-file=<path>" picked up the raw permission bits
207 from the path and propagated to zip output in some cases, without
208 normalization, which has been corrected (tar output did not have
209 this issue).
210 (merge 6a61661967 jc/archive-add-file-normalize-mode later to maint).
211
212 * "make coverage-report" without first running "make coverage" did
213 not produce any meaningful result, which has been corrected.
214 (merge 96ddfecc5b ep/coverage-report-wants-test-to-have-run later to maint).
215
216 * The "--current" option of "git show-branch" should have been made
217 incompatible with the "--reflog" mode, but this was not enforced,
218 which has been corrected.
219 (merge 41c64ae0e7 jc/show-branch-g-current later to maint).
220
221 * "git fetch" unnecessarily failed when an unexpected optional
222 section appeared in the output, which has been corrected.
223 (merge 7709acf7be jt/fetch-peek-optional-section later to maint).
224
225 * The way "git fetch" without "--update-head-ok" ensures that HEAD in
226 no worktree points at any ref being updated was too wasteful, which
227 has been optimized a bit.
228 (merge f7400da800 os/fetch-check-not-current-branch later to maint).
229
230 * "git fetch --recurse-submodules" from multiple remotes (either from
231 a remote group, or "--all") used to make one extra "git fetch" in
232 the submodules, which has been corrected.
233 (merge 0353c68818 jc/avoid-redundant-submodule-fetch later to maint).
234
235 * With a recent update to refuse access to repositories of other
236 people by default, "sudo make install" and "sudo git describe"
237 stopped working, which has been corrected.
238 (merge 6b11e3d52e cb/path-owner-check-with-sudo-plus later to maint).
239
240 * The tests that ensured merges stop when interfering local changes
241 are present did not make sure that local changes are preserved; now
242 they do.
243 (merge 4b317450ce jc/t6424-failing-merge-preserve-local-changes later to maint).
244
245 * Some real problems noticed by gcc 12 have been fixed, while false
246 positives have been worked around.
247
248 * Update the version of FreeBSD image used in Cirrus CI.
249 (merge c58bebd4c6 pb/use-freebsd-12.3-in-cirrus-ci later to maint).
250
251 * The multi-pack-index code did not protect the packfile it is going
252 to depend on from getting removed while in use, which has been
253 corrected.
254 (merge 4090511e40 tb/midx-race-in-pack-objects later to maint).
255
256 * Teach "git repack --geometric" work better with "--keep-pack" and
257 avoid corrupting the repository when packsize limit is used.
258 (merge 66731ff921 tb/geom-repack-with-keep-and-max later to maint).
259
260 * The documentation on the interaction between "--add-file" and
261 "--prefix" options of "git archive" has been improved.
262 (merge a75910602a rs/document-archive-prefix later to maint).
263
264 * A git subcommand like "git add -p" spawns a separate git process
265 while relaying its command line arguments. A pathspec with only
266 negative elements was mistakenly passed with an empty string, which
267 has been corrected.
268 (merge b02fdbc80a jc/all-negative-pathspec later to maint).
269
270 * With a more targeted workaround in http.c in another topic, we may
271 be able to lift this blanket "GCC12 dangling-pointer warning is
272 broken and unsalvageable" workaround.
273 (merge 419141e495 cb/buggy-gcc-12-workaround later to maint).
274
275 * A misconfigured 'branch..remote' led to a bug in configuration
276 parsing.
277 (merge f1dfbd9ee0 gc/zero-length-branch-config-fix later to maint).
278
279 * "git -c diff.submodule=log range-diff" did not show anything for
280 submodules that changed in the ranges being compared, and
281 "git -c diff.submodule=diff range-diff" did not work correctly.
282 Fix this by including the "--submodule=short" output
283 unconditionally to be compared.
284
285 * In Git 2.36 we revamped the way how hooks are invoked. One change
286 that is end-user visible is that the output of a hook is no longer
287 directly connected to the standard output of "git" that spawns the
288 hook, which was noticed post release. This is getting corrected.
289 (merge a082345372 ab/hooks-regression-fix later to maint).
290
291 * Updating the graft information invalidates the list of parents of
292 in-core commit objects that used to be in the graft file.
293
294 * "git show-ref --heads" (and "--tags") still iterated over all the
295 refs only to discard refs outside the specified area, which has
296 been corrected.
297 (merge c0c9d35e27 tb/show-ref-optim later to maint).
298
299 * Remove redundant copying (with index v3 and older) or possible
300 over-reading beyond end of mmapped memory (with index v4) has been
301 corrected.
302 (merge 6d858341d2 zh/read-cache-copy-name-entry-fix later to maint).
303
304 * Sample watchman interface hook sometimes failed to produce
305 correctly formatted JSON message, which has been corrected.
306 (merge 134047b500 sn/fsmonitor-missing-clock later to maint).
307
308 * Use-after-free (with another forget-to-free) fix.
309 (merge 323822c72b ab/remote-free-fix later to maint).
310
311 * Remove a coccinelle rule that is no longer relevant.
312 (merge b1299de4a1 jc/cocci-cleanup later to maint).
313
314 * Other code cleanup, docfix, build fix, etc.
315 (merge e6b2582da3 cm/reftable-0-length-memset later to maint).
316 (merge 0b75e5bf22 ab/misc-cleanup later to maint).
317 (merge 52e1ab8a76 ea/rebase-code-simplify later to maint).
318 (merge 756d15923b sg/safe-directory-tests-and-docs later to maint).
319 (merge d097a23bfa ds/do-not-call-bug-on-bad-refs later to maint).
320 (merge c36c27e75c rs/t7812-pcre2-ws-bug-test later to maint).
321 (merge 1da312742d gf/unused-includes later to maint).
322 (merge 465b30a92d pb/submodule-recurse-mode-enum later to maint).
323 (merge 82b28c4ed8 km/t3501-use-test-helpers later to maint).
324 (merge 72315e431b sa/t1011-use-helpers later to maint).
325 (merge 95b3002201 cg/vscode-with-gdb later to maint).
326 (merge fbe5f6b804 tk/p4-utf8-bom later to maint).
327 (merge 17f273ffba tk/p4-with-explicity-sync later to maint).
328 (merge 944db25c60 kf/p4-multiple-remotes later to maint).
329 (merge b014cee8de jc/update-ozlabs-url later to maint).
330 (merge 4ec5008062 pb/ggg-in-mfc-doc later to maint).
331 (merge af845a604d tb/receive-pack-code-cleanup later to maint).
332 (merge 2acf4cf001 js/ci-gcc-12-fixes later to maint).
333 (merge 05e280c0a6 jc/http-clear-finished-pointer later to maint).
334 (merge 8c49d704ef fh/transport-push-leakfix later to maint).
335 (merge 1d232d38bd tl/ls-tree-oid-only later to maint).
336 (merge db7961e6a6 gc/document-config-worktree-scope later to maint).
337 (merge ce18a30bb7 fs/ssh-default-key-command-doc later to maint).