Documentation / RelNotes-1.5.4.txton commit autoconf: Add checking for unsetenv function (bfa8fcc)
   1GIT v1.5.4 Release Notes
   2========================
   3
   4Removal
   5-------
   6
   7 * "git svnimport" was removed in favor of "git svn".  It is still there
   8   in the source tree (contrib/examples) but unsupported.
   9
  10 * As git-commit and git-status have been rewritten, "git runstatus"
  11   helper script lost all its users and has been removed.
  12
  13
  14Deprecation notices
  15-------------------
  16
  17 * The next feature release of git (this change is scheduled for v1.6.0)
  18   will by default install dashed form of commands (e.g. "git-commit")
  19   outside of users' normal $PATH, and will install only selected
  20   commands ("git" itself, and "gitk") in $PATH.  This implies:
  21
  22   - Using dashed forms of git commands (e.g. "git-commit") from the
  23     command line has been informally deprecated since early 2006, but
  24     now it officially is, and will be removed in the future.  Use
  25     dashless forms (e.g. "git commit") instead.
  26
  27   - Using dashed forms from your scripts, without first prepending the
  28     return value from "git --exec-path" to the scripts' PATH, has been
  29     informally deprecated since early 2006, but now it officially is.
  30
  31   - Use of dashed forms with "PATH=$(git --exec-path):$PATH; export
  32     PATH" early in your script is not deprecated with this change.
  33
  34  Users are strongly encouraged to adjust their habits and scripts now
  35  to prepare for this.
  36
  37 * The post-receive hook was introduced in March 2007 to supersede
  38   the post-update hook, primarily to overcome the command line length
  39   limitation of the latter.  Use of post-update hook will be deprecated
  40   in future versions of git, starting from v1.6.0.
  41
  42 * "git lost-found" was deprecated in favor of "git fsck"'s --lost-found
  43   option, and will be removed in the future.
  44
  45 * "git peek-remote" is deprecated, as "git ls-remote" was written in C
  46   and works for all transports; "git peek-remote" will be removed in
  47   the future.
  48
  49 * "git repo-config" which was an old name for "git config" command
  50   has been supported without being advertised for a long time.  The
  51   next feature release will remove it.
  52
  53 * From v1.6.0, the repack.usedeltabaseoffset config option will default
  54   to true, which will give denser packfiles (i.e. more efficient storage).
  55   The downside is that git older than version 1.4.4 will not be able
  56   to directly use a repository packed using this setting.
  57
  58 * From v1.6.0, the pack.indexversion config option will default to 2,
  59   which is slightly more efficient, and makes repacking more immune to
  60   data corruptions.  Git older than version 1.5.2 may revert to version 1
  61   of the pack index with a manual "git index-pack" to be able to directly
  62   access corresponding pack files.
  63
  64
  65Updates since v1.5.3
  66--------------------
  67
  68 * Comes with much improved gitk, with i18n.
  69
  70 * Comes with "git gui" 0.9.1 with i18n.
  71
  72 * gitk is now merged as a subdirectory of git.git project, in
  73   preparation for its i18n.
  74
  75 * progress displays from many commands are a lot nicer to the eye.
  76   Transfer commands show throughput data.
  77
  78 * many commands that pay attention to per-directory .gitignore now do
  79   so lazily, which makes the usual case go much faster.
  80
  81 * Output processing for '--pretty=format:<user format>' has been
  82   optimized.
  83
  84 * Rename detection of diff family while detecting exact matches has
  85   been greatly optimized.
  86
  87 * Rename detection of diff family tries to make more natural looking
  88   pairing.  Earlier, if multiple identical rename sources were
  89   found in the preimage, the source used was picked pretty much at random.
  90
  91 * Value "true" for color.diff and color.status configuration used to
  92   mean "always" (even when the output is not going to a terminal).
  93   This has been corrected to mean the same thing as "auto".
  94
  95 * "git diff" Porcelain now respects diff.external configuration, which
  96   is another way to specify GIT_EXTERNAL_DIFF.
  97
  98 * "git diff" can be told to use different prefixes other than
  99   "a/" and "b/" e.g. "git diff --src-prefix=l/ --dst-prefix=k/".
 100
 101 * "git diff" sometimes did not quote paths with funny
 102   characters properly.
 103
 104 * "git log" (and any revision traversal commands) misbehaved
 105   when --diff-filter is given but was not asked to actually
 106   produce diff.
 107
 108 * HTTP proxy can be specified per remote repository using
 109   remote.*.httpproxy configuration, or global http.proxy configuration
 110   variable.
 111
 112 * Various Perforce importer updates.
 113
 114 * Example update and post-receive hooks have been improved.
 115
 116 * Any command that wants to take a commit object name can now use
 117   ":/string" syntax to name a commit.
 118
 119 * "git reset" is now built-in and its output can be squelched with -q.
 120
 121 * "git reset --hard" does not make any sense in a bare
 122   repository, but did not error out; fixed.
 123
 124 * "git send-email" can optionally talk over ssmtp and use SMTP-AUTH.
 125
 126 * "git rebase" learned --whitespace option.
 127
 128 * In "git rebase", when you decide not to replay a particular change
 129   after the command stopped with a conflict, you can say "git rebase
 130   --skip" without first running "git reset --hard", as the command now
 131   runs it for you.
 132
 133 * "git rebase --interactive" mode can now work on detached HEAD.
 134
 135 * Other minor to serious bugs in "git rebase -i" have been fixed.
 136
 137 * "git rebase" now detaches head during its operation, so after a
 138   successful "git rebase" operation, the reflog entry branch@{1} for
 139   the current branch points at the commit before the rebase was
 140   started.
 141
 142 * "git rebase -i" also triggers rerere to help your repeated merges.
 143
 144 * "git merge" can call the "post-merge" hook.
 145
 146 * "git pack-objects" can optionally run deltification with multiple
 147   threads.
 148
 149 * "git archive" can optionally substitute keywords in files marked with
 150   export-subst attribute.
 151
 152 * "git cherry-pick" made a misguided attempt to repeat the original
 153   command line in the generated log message, when told to cherry-pick a
 154   commit by naming a tag that points at it.  It does not anymore.
 155
 156 * "git for-each-ref" learned %(xxxdate:<dateformat>) syntax to show the
 157   various date fields in different formats.
 158
 159 * "git gc --auto" is a low-impact way to automatically run a variant of
 160   "git repack" that does not lose unreferenced objects (read: safer
 161   than the usual one) after the user accumulates too many loose
 162   objects.
 163
 164 * "git clean" has been rewritten in C.
 165
 166 * You need to explicitly set clean.requireForce to "false" to allow
 167   "git clean" without -f to do any damage (lack of the configuration
 168   variable used to mean "do not require -f option to lose untracked
 169   files", but we now use the safer default).
 170
 171 * The kinds of whitespace errors "git diff" and "git apply" notice (and
 172   fix) can be controlled via 'core.whitespace' configuration variable
 173   and 'whitespace' attribute in .gitattributes file.
 174
 175 * "git push" learned --dry-run option to show what would happen if a
 176   push is run.
 177
 178 * "git push" does not update a tracking ref on the local side when the
 179   remote refused to update the corresponding ref.
 180
 181 * "git push" learned --mirror option.  This is to push the local refs
 182   one-to-one to the remote, and deletes refs from the remote that do
 183   not exist anymore in the repository on the pushing side.
 184
 185 * "git push" can remove a corrupt ref at the remote site with the usual
 186   ":ref" refspec.
 187
 188 * "git remote" knows --mirror mode.  This is to set up configuration to
 189   push into a remote repository to store local branch heads to the same
 190   branch on the remote side, and remove branch heads locally removed
 191   from local repository at the same time.  Suitable for pushing into a
 192   back-up repository.
 193
 194 * "git remote" learned "rm" subcommand.
 195
 196 * "git cvsserver" can be run via "git shell".  Also, "cvs" is
 197   recognized as a synonym for "git cvsserver", so that CVS users
 198   can be switched to git just by changing their login shell.
 199
 200 * "git cvsserver" acts more like receive-pack by running post-receive
 201   and post-update hooks.
 202
 203 * "git am" and "git rebase" are far less verbose.
 204
 205 * "git pull" learned to pass --[no-]ff option to underlying "git
 206   merge".
 207
 208 * "git pull --rebase" is a different way to integrate what you fetched
 209   into your current branch.
 210
 211 * "git fast-export" produces datastream that can be fed to fast-import
 212   to reproduce the history recorded in a git repository.
 213
 214 * "git add -i" takes pathspecs to limit the set of files to work on.
 215
 216 * "git add -p" is a short-hand to go directly to the selective patch
 217   subcommand in the interactive command loop and to exit when done.
 218
 219 * "git add -i" UI has been colorized.  The interactive prompt
 220   and menu can be colored by setting color.interactive
 221   configuration.  The diff output (including the hunk picker)
 222   are colored with color.diff configuration.
 223
 224 * "git commit --allow-empty" allows you to create a single-parent
 225   commit that records the same tree as its parent, overriding the usual
 226   safety valve.
 227
 228 * "git commit --amend" can amend a merge that does not change the tree
 229   from its first parent.
 230
 231 * "git commit" used to unconditionally strip comment lines that
 232   began with '#' and removed excess blank lines.  This
 233   behaviour has been made configurable.
 234
 235 * "git commit" has been rewritten in C.
 236
 237 * "git stash random-text" does not create a new stash anymore.  It was
 238   a UI mistake.  Use "git stash save random-text", or "git stash"
 239   (without extra args) for that.
 240
 241 * "git stash clear extra-text" does not clear the whole stash
 242   anymore.  It is tempting to expect "git stash clear stash@{2}"
 243   to drop only a single named stash entry, and it is rude to
 244   discard everything when that is asked (but not provided).
 245
 246 * "git prune --expire <time>" can exempt young loose objects from
 247   getting pruned.
 248
 249 * "git branch --contains <commit>" can list branches that are
 250   descendants of a given commit.
 251
 252 * "git log" learned --early-output option to help interactive GUI
 253   implementations.
 254
 255 * "git bisect" learned "skip" action to mark untestable commits.
 256
 257 * "git bisect visualize" learned a shorter synonym "git bisect view".
 258
 259 * "git bisect visualize" runs "git log" in a non-windowed
 260   environments.  It also can be told what command to run (e.g. "git
 261   bisect visualize tig").
 262
 263 * "git format-patch" learned "format.numbered" configuration variable
 264   to automatically turn --numbered option on when more than one commits
 265   are formatted.
 266
 267 * "git ls-files" learned "--exclude-standard" to use the canned set of
 268   exclude files.
 269
 270 * "git tag -a -f existing" begins the editor session using the existing
 271   annotation message.
 272
 273 * "git tag -m one -m bar" (multiple -m options) behaves similarly to
 274   "git commit"; the parameters to -m options are formatted as separate
 275   paragraphs.
 276
 277 * The format "git show" outputs an annotated tag has been updated to
 278   include "Tagger: " and "Date: " lines from the tag itself.  Strictly
 279   speaking this is a backward incompatible change, but this is a
 280   reasonable usability fix and people's scripts shouldn't have been
 281   relying on the exact output from "git show" Porcelain anyway.
 282
 283 * "git cvsimport" did not notice errors from underlying "cvsps"
 284   and produced a corrupt import silently.
 285
 286 * "git cvsexportcommit" learned -w option to specify and switch to the
 287   CVS working directory.
 288
 289 * "git checkout" from a subdirectory learned to use "../path" to allow
 290   checking out a path outside the current directory without cd'ing up.
 291
 292 * "git checkout" from and to detached HEAD leaves a bit more
 293   information in the reflog.
 294
 295 * "git send-email --dry-run" shows full headers for easier diagnosis.
 296
 297 * "git merge-ours" is now built-in.
 298
 299 * "git svn" learned "info" and "show-externals" subcommands.
 300
 301 * "git svn" run from a subdirectory failed to read settings from the
 302   .git/config.
 303
 304 * "git svn" learned --use-log-author option, which picks up more
 305   descriptive name from From: and Signed-off-by: lines in the commit
 306   message.
 307
 308 * "git svn" wasted way too much disk to record revision mappings
 309   between svn and git; a new representation that is much more compact
 310   for this information has been introduced to correct this.
 311
 312 * "git svn" left temporary index files it used without cleaning them
 313   up; this was corrected.
 314
 315 * "git status" from a subdirectory now shows relative paths, which
 316   makes copy-and-pasting for git-checkout/git-add/git-rm easier.  The
 317   traditional behaviour to show the full path relative to the top of
 318   the work tree can be had by setting status.relativepaths
 319   configuration variable to false.
 320
 321 * "git blame" kept text for each annotated revision in core needlessly;
 322   this has been corrected.
 323
 324 * "git shortlog" learned to default to HEAD when the standard input is
 325   a terminal and the user did not give any revision parameter.
 326
 327 * "git shortlog" learned "-e" option to show e-mail addresses as well as
 328   authors' names.
 329
 330 * "git help" learned "-w" option to show documentation in browsers.
 331
 332 * In addition there are quite a few internal clean-ups. Notably
 333
 334   - many fork/exec have been replaced with run-command API,
 335     brought from the msysgit effort.
 336
 337   - introduction and more use of the option parser API.
 338
 339   - enhancement and more use of the strbuf API.
 340
 341
 342Fixes since v1.5.3
 343------------------
 344
 345All of the fixes in v1.5.3 maintenance series are included in
 346this release, unless otherwise noted.
 347
 348These fixes are only in v1.5.4 and not backported to v1.5.3 maintenance
 349series.
 350
 351 * The way "git diff --check" behaves is much more consistent with the way
 352   "git apply --whitespace=warn" works.
 353
 354 * "git svn" talking with the SVN over http will correctly quote branch
 355   and project names.
 356
 357 * "git config" did not work correctly on platforms that define
 358   REG_NOMATCH to an even number.
 359
 360 * Recent versions of AsciiDoc 8 has a change to break our
 361   documentation; a workaround has been implemented.
 362
 363--
 364exec >/var/tmp/1
 365O=v1.5.4-rc3
 366echo O=`git describe refs/heads/master`
 367git shortlog --no-merges $O..refs/heads/master ^refs/heads/maint