4 Backward compatibility notes.
6 * Use of an empty string as a pathspec element that is used for
7 'everything matches' is still warned and Git asks users to use a
8 more explicit '.' for that instead. The hope is that existing
9 users will not mind this change, and eventually the warning can be
10 turned into a hard error, upgrading the deprecation into removal of
11 this (mis)feature. That is not scheduled to happen in the upcoming
14 * Git now avoids blindly falling back to ".git" when the setup
15 sequence said we are _not_ in Git repository. A corner case that
16 happens to work right now may be broken by a call to die("BUG").
17 We've tried hard to locate such cases and fixed them, but there
18 might still be cases that need to be addressed--bug reports are
21 * The experiment to improve the hunk-boundary selection of textual
22 diff output has finished, and the "indent heuristics" has now
29 UI, Workflows & Features
31 * The colors in which "git status --short --branch" showed the names
32 of the current branch and its remote-tracking branch are now
35 * "git clone" learned the "--no-tags" option not to fetch all tags
36 initially, and also set up the tagopt not to follow any tags in
39 * "git archive --format=zip" learned to use zip64 extension when
40 necessary to go beyond the 4GB limit.
42 * "git reset" learned "--recurse-submodules" option.
44 * "git diff --submodule=diff" now recurses into nested submodules.
46 * "git repack" learned to accept the --threads=<n> option and pass it
49 * "git send-email" learned to run sendemail-validate hook to inspect
50 and reject a message before sending it out.
52 * There is no good reason why "git fetch $there $sha1" should fail
53 when the $sha1 names an object at the tip of an advertised ref,
54 even when the other side hasn't enabled allowTipSHA1InWant.
56 * The recently introduced "[includeIf "gitdir:$dir"] path=..."
57 mechanism has further been taught to take symlinks into account.
58 The directory "$dir" specified in "gitdir:$dir" may be a symlink to
59 a real location, not something that $(getcwd) may return. In such
60 a case, a realpath of "$dir" is compared with the real path of the
61 current repository to determine if the contents from the named path
64 * Make the "indent" heuristics the default in "diff" and diff.indentHeuristics
65 configuration variable an escape hatch for those who do no want it.
67 * Many commands learned to pay attention to submodule.recurse
70 * The convention for a command line is to follow "git cmdname
71 --options" with revisions followed by an optional "--"
72 disambiguator and then finally pathspecs. When "--" is not there,
73 we make sure early ones are all interpretable as revs (and do not
74 look like paths) and later ones are the other way around. A
75 pathspec with "magic" (e.g. ":/p/a/t/h" that matches p/a/t/h from
76 the top-level of the working tree, no matter what subdirectory you
77 are working from) are conservatively judged as "not a path", which
78 required disambiguation more often. The command line parser
79 learned to say "it's a pathspec" a bit more often when the syntax
82 * Update "perl-compatible regular expression" support to enable JIT
83 and also allow linking with the newer PCRE v2 library.
85 * "filter-branch" learned a pseudo filter "--setup" that can be used
86 to define common functions/variables that can be used by other
89 * Using "git add d/i/r" when d/i/r is the top of the working tree of
90 a separate repository would create a gitlink in the index, which
91 would appear as a not-quite-initialized submodule to others. We
92 learned to give warnings when this happens.
94 * "git status" learned to optionally give how many stash entries the
95 user has in its output.
97 * "git status" has long shown essentially the same message as "git
98 commit"; the message it gives while preparing for the root commit,
99 i.e. "Initial commit", was hard to understand for some new users.
100 Now it says "No commits yet" to stress more on the current status
101 (rather than the commit the user is preparing for, which is more in
102 line with the focus of "git commit").
104 Performance, Internal Implementation, Development Support etc.
106 * The default packed-git limit value has been raised on larger
107 platforms to save "git fetch" from a (recoverable) failure while
108 "gc" is running in parallel.
110 * Code to update the cache-tree has been tightened so that we won't
111 accidentally write out any 0{40} entry in the tree object.
113 * Attempt to allow us notice "fishy" situation where we fail to
114 remove the temporary directory used during the test.
116 * Travis CI gained a task to format the documentation with both
117 AsciiDoc and AsciiDoctor.
119 * Some platforms have ulong that is smaller than time_t, and our
120 historical use of ulong for timestamp would mean they cannot
121 represent some timestamp that the platform allows. Invent a
122 separate and dedicated timestamp_t (so that we can distingiuish
123 timestamps and a vanilla ulongs, which along is already a good
124 move), and then declare uintmax_t is the type to be used as the
127 * We can trigger Windows auto-build tester (credits: Dscho &
128 Microsoft) from our existing Travis CI tester now.
130 * Conversion from uchar[20] to struct object_id continues.
132 * Simplify parse_pathspec() codepath and stop it from looking at the
133 default in-core index.
135 * Add perf-test for wildmatch.
137 * Code from "conversion using external process" codepath has been
138 extracted to a separate sub-process.[ch] module.
140 * When "git checkout", "git merge", etc. manipulates the in-core
141 index, various pieces of information in the index extensions are
142 discarded from the original state, as it is usually not the case
143 that they are kept up-to-date and in-sync with the operation on the
144 main index. The untracked cache extension is copied across these
145 operations now, which would speed up "git status" (as long as the
146 cache is properly invalidated).
148 * The internal implementation of "git grep" has seen some clean-up.
150 * Update the C style recommendation for notes for translators, as
151 recent versions of gettext tools can work with our style of
154 * The implementation of "ref" API around the "packed refs" have been
155 cleaned up, in preparation for further changes.
157 * The internal logic used in "git blame" has been libified to make it
158 easier to use by cgit.
160 * Our code often opens a path to an optional file, to work on its
161 contents when we can successfully open it. We can ignore a failure
162 to open if such an optional file does not exist, but we do want to
163 report a failure in opening for other reasons (e.g. we got an I/O
164 error, or the file is there, but we lack the permission to open).
166 The exact errors we need to ignore are ENOENT (obviously) and
167 ENOTDIR (less obvious). Instead of repeating comparison of errno
168 with these two constants, introduce a helper function to do so.
170 * We often try to open a file for reading whose existence is
171 optional, and silently ignore errors from open/fopen; report such
172 errors if they are not due to missing files.
174 * When an existing repository is used for t/perf testing, we first
175 create bit-for-bit copy of it, which may grab a transient state of
176 the repository and freeze it into the repository used for testing,
177 which then may cause Git operations to fail. Single out "the index
178 being locked" case and forcibly drop the lock from the copy.
180 * Three instances of the same helper function have been consolidated
183 * "fast-import" uses a default pack chain depth that is consistent
184 with other parts of the system.
186 * A new test to show the interaction between the pattern [^a-z]
187 (which matches '/') and a slash in a path has been added. The
188 pattern should not match the slash with "pathmatch", but should
191 * The 'diff-highlight' program (in contrib/) has been restructured
192 for easier reuse by an external project 'diff-so-fancy'.
193 (merge 0c977dbc81 jk/diff-highlight-module later to maint).
195 * A common pattern to free a piece of memory and assign NULL to the
196 pointer that used to point at it has been replaced with a new
197 FREE_AND_NULL() macro.
199 * Traditionally, the default die() routine had a code to prevent it
200 from getting called multiple times, which interacted badly when a
201 threaded program used it (one downside is that the real error may
202 be hidden and instead the only error message given to the user may
203 end up being "die recursion detected", which is not very useful).
206 Also contains various documentation updates and code clean-ups.
212 Unless otherwise noted, all the fixes since v2.13 in the maintenance
213 track are contained in this release (see the maintenance releases'
216 * "git gc" did not interact well with "git worktree"-managed
219 * "git cherry-pick" and other uses of the sequencer machinery
220 mishandled a trailer block whose last line is an incomplete line.
221 This has been fixed so that an additional sign-off etc. are added
222 after completing the existing incomplete line.
224 * The codepath in "git am" that is used when running "git rebase"
225 leaked memory held for the log message of the commits being rebased.
227 * "git clone --config var=val" is a way to populate the
228 per-repository configuration file of the new repository, but it did
229 not work well when val is an empty string. This has been fixed.
231 * Setting "log.decorate=false" in the configuration file did not take
232 effect in v2.13, which has been corrected.
234 * A few codepaths in "checkout" and "am" working on an unborn branch
235 tried to access an uninitialized piece of memory.
237 * The Web interface to gmane news archive is long gone, even though
238 the articles are still accessible via NTTP. Replace the links with
239 ones to public-inbox.org. Because their message identification is
240 based on the actual message-id, it is likely that it will be easier
241 to migrate away from it if/when necessary.
243 * The receive-pack program now makes sure that the push certificate
244 records the same set of push options used for pushing.
246 * Tests have been updated to pass under GETTEXT_POISON (a mechanism
247 to ensure that output strings that should not be translated are
248 not translated by mistake), and TravisCI is told to run them.
250 * "git checkout --recurse-submodules" did not quite work with a
251 submodule that itself has submodules.
253 * "pack-objects" can stream a slice of an existing packfile out when
254 the pack bitmap can tell that the reachable objects are all needed
255 in the output, without inspecting individual objects. This
256 strategy however would not work well when "--local" and other
257 options are in use, and need to be disabled.
259 * Fix memory leaks pointed out by Coverity (and people).
261 * "git read-tree -m" (no tree-ish) gave a nonsense suggestion "use
262 --empty if you want to clear the index". With "-m", such a request
263 will still fail anyway, as you'd need to name at least one tree-ish
266 * Make sure our tests would pass when the sources are checked out
267 with "platform native" line ending convention by default on
268 Windows. Some "text" files out tests use and the test scripts
269 themselves that are meant to be run with /bin/sh, ought to be
270 checked out with eol=LF even on Windows.
272 * Introduce the BUG() macro to improve die("BUG: ...").
274 * Clarify documentation for include.path and includeIf.<condition>.path
275 configuration variables.
277 * Git sometimes gives an advice in a rhetorical question that does
278 not require an answer, which can confuse new users and non native
279 speakers. Attempt to rephrase them.
281 * A few http:// links that are redirected to https:// in the
282 documentation have been updated to https:// links.
284 * "git for-each-ref --format=..." with %(HEAD) in the format used to
285 resolve the HEAD symref as many times as it had processed refs,
286 which was wasteful, and "git branch" shared the same problem.
288 * Regression fix to topic recently merged to 'master'.
290 * The shell completion script (in contrib/) learned "git stash" has
291 a new "push" subcommand.
293 * "git interpret-trailers", when used as GIT_EDITOR for "git commit
294 -v", looked for and appended to a trailer block at the very end,
295 i.e. at the end of the "diff" output. The command has been
296 corrected to pay attention to the cut-mark line "commit -v" adds to
297 the buffer---the real trailer block should appear just before it.
299 * A test allowed both "git push" and "git receive-pack" on the other
300 end write their traces into the same file. This is OK on platforms
301 that allows atomically appending to a file opened with O_APPEND,
302 but on other platforms led to a mangled output, causing
303 intermittent test failures. This has been fixed by disabling
304 traces from "receive-pack" in the test.
306 * Tag objects, which are not reachable from any ref, that point at
307 missing objects were mishandled by "git gc" and friends (they
308 should silently be ignored instead)
310 * "git describe --contains" penalized light-weight tags so much that
311 they were almost never considered. Instead, give them about the
312 same chance to be considered as an annotated tag that is the same
313 age as the underlying commit would.
315 * The "run-command" API implementation has been made more robust
316 against dead-locking in a threaded environment.
318 * A recent update to t5545-push-options.sh started skipping all the
319 tests in the script when a web server testing is disabled or
320 unavailable, not just the ones that require a web server. Non HTTP
321 tests have been salvaged to always run in this script.
323 * "git send-email" now uses Net::SMTP::SSL, which is obsolete, only
324 when needed. Recent versions of Net::SMTP can do TLS natively.
326 * "foo\bar\baz" in "git fetch foo\bar\baz", even though there is no
327 slashes in it, cannot be a nickname for a remote on Windows, as
328 that is likely to be a pathname on a local filesystem.
330 * "git clean -d" used to clean directories that has ignored files,
331 even though the command should not lose ignored ones without "-x".
332 "git status --ignored" did not list ignored and untracked files
333 without "-uall". These have been corrected.
335 * The result from "git diff" that compares two blobs, e.g. "git diff
336 $commit1:$path $commit2:$path", used to be shown with the full
337 object name as given on the command line, but it is more natural to
338 use the $path in the output and use it to look up .gitattributes.
340 * The "collision detecting" SHA-1 implementation shipped with 2.13
341 was quite broken on some big-endian platforms and/or platforms that
342 do not like unaligned fetches. Update to the upstream code which
343 has already fixed these issues.
345 * "git am -h" triggered a BUG().
347 * The interaction of "url.*.insteadOf" and custom URL scheme's
348 whitelisting is now documented better.
350 * The timestamp of the index file is now taken after the file is
351 closed, to help Windows, on which a stale timestamp is reported by
352 fstat() on a file that is opened for writing and data was written
355 * "git pull --rebase --autostash" didn't auto-stash when the local history
356 fast-forwards to the upstream.
358 * A flaky test has been corrected.
360 * "git $cmd -h" for builtin commands calls the implementation of the
361 command (i.e. cmd_$cmd() function) without doing any repository
362 set-up, and the commands that expect RUN_SETUP is done by the Git
363 potty needs to be prepared to show the help text without barfing.
364 (merge d691551192 jk/consistent-h later to maint).
366 * Help contributors that visit us at GitHub.
368 * "git stash push <pathspec>" did not work from a subdirectory at all.
369 Bugfix for a topic in v2.13
371 * As there is no portable way to pass timezone information to
372 strftime, some output format from "git log" and friends are
373 impossible to produce. Teach our own strbuf_addftime to replace %z
374 and %Z with caller-supplied values to help working around this.
375 (merge 6eced3ec5e rs/strbuf-addftime-zZ later to maint).
377 * "git mergetool" learned to work around a wrapper MacOS X adds
378 around underlying meld.
379 (merge 0af85f84bd da/mergetools-meld-output-opt-on-macos later to maint).
381 * An example in documentation that does not work in multi worktree
382 configuration has been corrected.
383 (merge 773a88914f ah/doc-gitattributes-empty-index later to maint).
385 * The pretty-format specifiers like '%h', '%t', etc. had an
386 optimization that no longer works correctly. In preparation/hope
387 of getting it correctly implemented, first discard the optimization
389 (merge fe9e2aefd4 rs/pretty-add-again later to maint).
391 * The code to pick up and execute command alias definition from the
392 configuration used to switch to the top of the working tree and
393 then come back when the expanded alias was executed, which was
394 unnecessarilyl complex. Attempt to simplify the logic by using the
395 early-config mechanism that does not chdir around.
396 (merge a9bcf6586d js/alias-early-config later to maint).
398 * Fix configuration codepath to pay proper attention to commondir
399 that is used in multi-worktree situation, and isolate config API
400 into its own header file.
401 (merge dc8441fdb4 bw/config-h later to maint).
403 * "git add -p" were updated in 2.12 timeframe to cope with custom
404 core.commentchar but the implementation was buggy and a
405 metacharacter like $ and * did not work.
406 (merge d85d7ecb80 jk/add-p-commentchar-fix later to maint).
408 * A recent regression in "git rebase -i" has been fixed and tests
409 that would have caught it and others have been added.
410 (merge adf16c08cb pw/rebase-i-regression-fix-tests later to maint).
412 * An unaligned 32-bit access in pack-bitmap code ahs been corrected.
413 (merge da41c942b3 jc/pack-bitmap-unaligned later to maint).
415 * Tighten error checks for invalid "git apply" input.
416 (merge d70e9c5c8c rs/apply-validate-input later to maint).
418 * Other minor doc, test and build updates and code cleanups.
419 (merge 68241cb9dd sb/t4005-modernize later to maint).
420 (merge 4fced24712 ks/t7508-indent-fix later to maint).
421 (merge 968b1fe263 mb/reword-autocomplete-message later to maint).
422 (merge 8592c95cdf ah/doc-pretty-color-auto-prefix later to maint).
git / git.git / blob