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1Git 2.25 Release Notes
2======================
3
4Updates since v2.24
5-------------------
6
7Backward compatibility notes
8
9
10UI, Workflows & Features
11
12 * A tutorial on object enumeration has been added.
13
14 * The branch description ("git branch --edit-description") has been
15 used to fill the body of the cover letters by the format-patch
16 command; this has been enhanced so that the subject can also be
17 filled.
18
19 * "git rebase --preserve-merges" has been marked as deprecated; this
20 release stops advertising it in the "git rebase -h" output.
21
22 * The code to generate multi-pack index learned to show (or not to
23 show) progress indicators.
24
25 * "git apply --3way" learned to honor merge.conflictStyle
26 configuration variable, like merges would.
27
28 * The custom format for "git log --format=<format>" learned the l/L
29 placeholder that is similar to e/E that fills in the e-mail
30 address, but only the local part on the left side of '@'.
31
32 * Documentation pages for "git shortlog" now list commit limiting
33 options explicitly.
34
35 * The patterns to detect function boundary for Elixir language has
36 been added.
37
38 * The completion script (in contrib/) learned that the "--onto"
39 option of "git rebase" can take its argument as the value of the
40 option.
41
42 * The userdiff machinery has been taught that "async def" is another
43 way to begin a "function" in Python.
44
45 * "git range-diff" learned to take the "--notes=<ref>" and the
46 "--no-notes" options to control the commit notes included in the
47 log message that gets compared.
48
49 * "git rev-parse --show-toplevel" run outside of any working tree did
50 not error out, which has been corrected.
51
52 * A few commands learned to take the pathspec from the standard input
53 or a named file, instead of taking it as the command line
54 arguments, with the "--pathspec-from-file" option.
55
56 * "git submodule" learned a subcommand "set-url".
57
58 * "git log" family learned "--pretty=reference" that gives the name
59 of a commit in the format that is often used to refer to it in log
60 messages.
61
62 * The interaction between "git clone --recurse-submodules" and
63 alternate object store was ill-designed. The documentation and
64 code have been taught to make more clear recommendations when the
65 users see failures.
66
67 * Management of sparsely checked-out working tree has gained a
68 dedicated "sparse-checkout" command.
69
70 * Miscellaneous small UX improvements on "git-p4".
71
72 * "git sparse-checkout list" subcommand learned to give its output in
73 a more concise form when the "cone" mode is in effect.
74
75
76Performance, Internal Implementation, Development Support etc.
77
78 * Debugging support for lazy cloning has been a bit improved.
79
80 * Move the definition of a set of bitmask constants from 0ctal
81 literal to (1U<<count) notation.
82
83 * Test updates to prepare for SHA-2 transition continues.
84
85 * Crufty code and logic accumulated over time around the object
86 parsing and low-level object access used in "git fsck" have been
87 cleaned up.
88
89 * The implementation of "git log --graph" got refactored and then its
90 output got simplified.
91
92 * Follow recent push to move API docs from Documentation/ to header
93 files and update config.h
94
95 * "git bundle" has been taught to use the parse options API. "git
96 bundle verify" learned "--quiet" and "git bundle create" learned
97 options to control the progress output.
98
99 * Handling of commit objects that use non UTF-8 encoding during
100 "rebase -i" has been improved.
101
102 * The beginning of rewriting "git add -i" in C.
103
104 * A label used in the todo list that are generated by "git rebase
105 --rebase-merges" is used as a part of a refname; the logic to come
106 up with the label has been tightened to avoid names that cannot be
107 used as such.
108
109 * The logic to avoid duplicate label names generated by "git rebase
110 --rebase-merges" forgot that the machinery itself uses "onto" as a
111 label name, which must be avoided by auto-generated labels, which
112 has been corrected.
113
114 * We have had compatibility fallback macro definitions for "PRIuMAX",
115 "PRIu32", etc. but did not for "PRIdMAX", while the code used the
116 last one apparently without any hiccup reported recently. The
117 fallback macro definitions for these <inttypes.h> macros that must
118 appear in C99 systems have been removed.
119
120 * Recently we have declared that GIT_TEST_* variables take the
121 usual boolean values (it used to be that some used "non-empty
122 means true" and taking GIT_TEST_VAR=YesPlease as true); make
123 sure we notice and fail when non-bool strings are given to
124 these variables.
125
126 * Users of oneway_merge() (like "reset --hard") learned to take
127 advantage of fsmonitor to avoid unnecessary lstat(2) calls.
128
129 * Performance tweak on "git push" into a repository with many refs
130 that point at objects we have never heard of.
131
132 * PerfTest fix to avoid stale result mixed up with the latest round
133 of test results.
134
135 * Hide lower-level verify_signed-buffer() API as a pure helper to
136 implement the public check_signature() function, in order to
137 encourage new callers to use the correct and more strict
138 validation.
139
140 * Unnecessary reading of state variables back from the disk during
141 sequencer operation has been reduced.
142
143 * The code has been made to avoid gmtime() and localtime() and prefer
144 their reentrant counterparts.
145
146 * In a repository with many packfiles, the cost of the procedure that
147 avoids registering the same packfile twice was unnecessarily high
148 by using an inefficient search algorithm, which has been corrected.
149
150 * Redo "git name-rev" to avoid recursive calls.
151
152 * FreeBSD CI support via Cirrus-CI has been added.
153
154
155Fixes since v2.24
156-----------------
157
158 * "rebase -i" ceased to run post-commit hook by mistake in an earlier
159 update, which has been corrected.
160
161 * "git notes copy $original" ought to copy the notes attached to the
162 original object to HEAD, but a mistaken tightening to command line
163 parameter validation made earlier disabled that feature by mistake.
164
165 * When all files from some subdirectory were renamed to the root
166 directory, the directory rename heuristics would fail to detect that
167 as a rename/merge of the subdirectory to the root directory, which has
168 been corrected.
169
170 * Code clean-up and a bugfix in the logic used to tell worktree local
171 and repository global refs apart.
172 (merge f45f88b2e4 sg/dir-trie-fixes later to maint).
173
174 * "git stash save" in a working tree that is sparsely checked out
175 mistakenly removed paths that are outside the area of interest.
176 (merge 4a58c3d7f7 js/update-index-ignore-removal-for-skip-worktree later to maint).
177
178 * "git rev-parse --git-path HEAD.lock" did not give the right path
179 when run in a secondary worktree.
180 (merge 76a53d640f js/git-path-head-dot-lock-fix later to maint).
181
182 * "git merge --no-commit" needs "--no-ff" if you do not want to move
183 HEAD, which has been corrected in the manual page for "git bisect".
184 (merge 8dd327b246 ma/bisect-doc-sample-update later to maint).
185
186 * "git worktree add" internally calls "reset --hard" that should not
187 descend into submodules, even when submodule.recurse configuration
188 is set, but it was affected. This has been corrected.
189 (merge 4782cf2ab6 pb/no-recursive-reset-hard-in-worktree-add later to maint).
190
191 * Messages from die() etc. can be mixed up from multiple processes
192 without even line buffering on Windows, which has been worked
193 around.
194 (merge 116d1fa6c6 js/vreportf-wo-buffering later to maint).
195
196 * HTTP transport had possible allocator/deallocator mismatch, which
197 has been corrected.
198
199 * The watchman integration for fsmonitor was racy, which has been
200 corrected to be more conservative.
201 (merge dd0b61f577 kw/fsmonitor-watchman-fix later to maint).
202
203 * Fetching from multiple remotes into the same repository in parallel
204 had a bad interaction with the recent change to (optionally) update
205 the commit-graph after a fetch job finishes, as these parallel
206 fetches compete with each other. Which has been corrected.
207
208 * Recent update to "git stash pop" made the command empty the index
209 when run with the "--quiet" option, which has been corrected.
210
211 * "git fetch" codepath had a big "do not lazily fetch missing objects
212 when I ask if something exists" switch. This has been corrected by
213 marking the "does this thing exist?" calls with "if not please do not
214 lazily fetch it" flag.
215
216 * Test update to avoid wasted cycles.
217 (merge e0316695ec sg/skip-skipped-prereq later to maint).
218
219 * Error handling after "git push" finishes sending the packdata and
220 waits for the response to the remote side has been improved.
221 (merge ad7a403268 jk/send-pack-remote-failure later to maint).
222
223 * Some codepaths in "gitweb" that forgot to escape URLs generated
224 based on end-user input have been corrected.
225 (merge a376e37b2c jk/gitweb-anti-xss later to maint).
226
227 * CI jobs for macOS has been made less chatty when updating perforce
228 package used during testing.
229 (merge 0dbc4a0edf jc/azure-ci-osx-fix-fix later to maint).
230
231 * "git unpack-objects" used to show progress based only on the number
232 of received and unpacked objects, which stalled when it has to
233 handle an unusually large object. It now shows the throughput as
234 well.
235 (merge bae60ba7e9 sg/unpack-progress-throughput later to maint).
236
237 * The sequencer machinery compared the HEAD and the state it is
238 attempting to commit to decide if the result would be a no-op
239 commit, even when amending a commit, which was incorrect, and
240 has been corrected.
241
242 * The code to parse GPG output used to assume incorrectly that the
243 finterprint for the primary key would always be present for a valid
244 signature, which has been corrected.
245 (merge 67a6ea6300 hi/gpg-optional-pkfp-fix later to maint).
246
247 * "git submodule status" and "git submodule status --cached" show
248 different things, but the documentation did not cover them
249 correctly, which has been corrected.
250 (merge 8d483c8408 mg/doc-submodule-status-cached later to maint).
251
252 * "git reset --patch $object" without any pathspec should allow a
253 tree object to be given, but incorrectly required a committish,
254 which has been corrected.
255
256 * "git submodule status" that is run from a subdirectory of the
257 superproject did not work well, which has been corrected.
258 (merge 1f3aea22c7 mg/submodule-status-from-a-subdirectory later to maint).
259
260 * The revision walking machinery uses resources like per-object flag
261 bits that need to be reset before a new iteration of walking
262 begins, but the resources related to topological walk were not
263 cleared correctly, which has been corrected.
264 (merge 0aa0c2b2ec mh/clear-topo-walk-upon-reset later to maint).
265
266 * TravisCI update.
267 (merge 176441bfb5 sg/osx-force-gcc-9 later to maint).
268
269 * While running "revert" or "cherry-pick --edit" for multiple
270 commits, a recent regression incorrectly detected "nothing to
271 commit, working tree clean", instead of replaying the commits,
272 which has been corrected.
273 (merge befd4f6a81 sg/assume-no-todo-update-in-cherry-pick later to maint).
274
275 * Work around a issue where a FD that is left open when spawning a
276 child process and is kept open in the child can interfere with the
277 operation in the parent process on Windows.
278
279 * One kind of progress messages were always given during commit-graph
280 generation, instead of following the "if it takes more than two
281 seconds, show progress" pattern, which has been corrected.
282
283 * "git rebase" did not work well when format.useAutoBase
284 configuration variable is set, which has been corrected.
285
286 * The "diff" machinery learned not to lose added/removed blank lines
287 in the context when --ignore-blank-lines and --function-context are
288 used at the same time.
289 (merge 0bb313a552 rs/xdiff-ignore-ws-w-func-context later to maint).
290
291 * The test on "fast-import" used to get stuck when "fast-import" died
292 in the middle.
293 (merge 0d9b0d7885 sg/t9300-robustify later to maint).
294
295 * "git format-patch" can take a set of configured format.notes values
296 to specify which notes refs to use in the log message part of the
297 output. The behaviour of this was not consistent with multiple
298 --notes command line options, which has been corrected.
299 (merge e0f9095aaa dl/format-patch-notes-config-fixup later to maint).
300
301 * "git p4" used to ignore lfs.storage configuration variable, which
302 has been corrected.
303 (merge ea94b16fb8 rb/p4-lfs later to maint).
304
305 * Assorted fixes to the directory traversal API.
306 (merge 6836d2fe06 en/fill-directory-fixes later to maint).
307
308 * Forbid pathnames that the platform's filesystem cannot represent on
309 MinGW.
310 (merge 4dc42c6c18 js/mingw-reserved-filenames later to maint).
311
312 * "git rebase --signoff" stopped working when the command was written
313 in C, which has been corrected.
314 (merge 4fe7e43c53 en/rebase-signoff-fix later to maint).
315
316 * An earlier update to Git for Windows declared that a tree object is
317 invalid if it has a path component with backslash in it, which was
318 overly strict, which has been corrected. The only protection the
319 Windows users need is to prevent such path (or any path that their
320 filesystem cannot check out) from entering the index.
321 (merge 224c7d70fa js/mingw-loosen-overstrict-tree-entry-checks later to maint).
322
323 * The code to write split commit-graph file(s) upon fetching computed
324 bogus value for the parameter used in splitting the resulting
325 files, which has been corrected.
326 (merge 63020f175f ds/commit-graph-set-size-mult later to maint).
327
328 * Other code cleanup, docfix, build fix, etc.
329 (merge 80736d7c5e jc/am-show-current-patch-docfix later to maint).
330 (merge 8b656572ca sg/commit-graph-usage-fix later to maint).
331 (merge 6c02042139 mr/clone-dir-exists-to-path-exists later to maint).
332 (merge 44ae131e38 sg/blame-indent-heuristics-is-now-the-default later to maint).
333 (merge 0115e5d929 dl/doc-diff-no-index-implies-exit-code later to maint).
334 (merge 270de6acbe en/t6024-style later to maint).
335 (merge 14c4776d75 ns/test-desc-typofix later to maint).
336 (merge 68d40f30c4 dj/typofix-merge-strat later to maint).
337 (merge f66e0401ab jk/optim-in-pack-idx-conversion later to maint).
338 (merge 169bed7421 rs/parse-options-dup-null-fix later to maint).
339 (merge 51bd6be32d rs/use-copy-array-in-mingw-shell-command-preparation later to maint).
340 (merge b018719927 ma/t7004 later to maint).
341 (merge 932757b0cc ar/install-doc-update-cmds-needing-the-shell later to maint).
342 (merge 46efd28be1 ep/guard-kset-tar-headers later to maint).
343 (merge 9e5afdf997 ec/fetch-mark-common-refs-trace2 later to maint).
344 (merge f0e58b3fe8 pb/submodule-update-fetches later to maint).
345 (merge 2a02262078 dl/t5520-cleanup later to maint).
346 (merge a4fb016ba1 js/pkt-line-h-typofix later to maint).
347 (merge 54a7a64613 rs/simplify-prepare-cmd later to maint).
348 (merge 3eae30e464 jk/lore-is-the-archive later to maint).
349 (merge 14b7664df8 dl/lore-is-the-archive later to maint).
350 (merge 0e40a73a4c po/bundle-doc-clonable later to maint).
351 (merge e714b898c6 as/t7812-missing-redirects-fix later to maint).
352 (merge 528d9e6d01 jk/perf-wo-git-dot-pm later to maint).
353 (merge fc42f20e24 sg/test-squelch-noise-in-commit-bulk later to maint).
354 (merge c64368e3a2 bc/t9001-zsh-in-posix-emulation-mode later to maint).
355 (merge 11de8dd7ef dr/branch-usage-casefix later to maint).
356 (merge e05e8cf074 rs/archive-zip-code-cleanup later to maint).
357 (merge 147ee35558 rs/commit-export-env-simplify later to maint).
358 (merge 4507ecc771 rs/patch-id-use-oid-to-hex later to maint).
359 (merge 51a0a4ed95 mr/bisect-use-after-free later to maint).
360 (merge cc2bd5c45d pb/submodule-doc-xref later to maint).
361 (merge df5be01669 ja/doc-markup-cleanup later to maint).
362 (merge 7c5cea7242 mr/bisect-save-pointer-to-const-string later to maint).
363 (merge 20a67e8ce9 js/use-test-tool-on-path later to maint).
364 (merge 4e61b2214d ew/packfile-syscall-optim later to maint).
365 (merge ace0f86c7f pb/clarify-line-log-doc later to maint).
366 (merge 763a59e71c en/merge-recursive-oid-eq-simplify later to maint).
367 (merge 4e2c4c0d4f do/gitweb-typofix-in-comments later to maint).
368 (merge 421c0ffb02 jb/doc-multi-pack-idx-fix later to maint).
369 (merge f8740c586b pm/am-in-body-header-doc-update later to maint).
370 (merge 5814d44d9b tm/doc-submodule-absorb-fix later to maint).