Documentation/RelNotes-1.6.0.txt

   1 GIT v1.6.0 Release Notes
   2 ========================
   3
   4 User visible changes
   5 --------------------
   6
   7 With the default Makefile settings, most of the programs are now
   8 installed outside your $PATH, except for "git", "gitk" and
   9 some server side programs that need to be accessible for technical
  10 reasons.  Invoking a git subcommand as "git-xyzzy" from the command
  11 line has been deprecated since early 2006 (and officially announced in
  12 1.5.4 release notes); use of them from your scripts after adding
  13 output from "git --exec-path" to the $PATH is still supported in this
  14 release, but users are again strongly encouraged to adjust their
  15 scripts to use "git xyzzy" form, as we will stop installing
  16 "git-xyzzy" hardlinks for built-in commands in later releases.
  17
  18 An earlier change to page "git status" output was overwhelmingly unpopular
  19 and has been reverted.
  20
  21 Source changes needed for porting to MinGW environment are now all in the
  22 main git.git codebase.
  23
  24 By default, packfiles created with this version uses delta-base-offset
  25 encoding introduced in v1.4.4.  Pack idx files are using version 2 that
  26 allows larger packs and added robustness thanks to its CRC checking,
  27 introduced in v1.5.2 and v1.4.4.5.  If you want to keep your repositories
  28 backwards compatible past these versions, set repack.useDeltaBaseOffset
  29 to false or pack.indexVersion to 1, respectively.
  30
  31 GIT_CONFIG, which was only documented as affecting "git config", but
  32 actually affected all git commands, now only affects "git config".
  33 GIT_LOCAL_CONFIG, also only documented as affecting "git config" and
  34 not different from GIT_CONFIG in a useful way, is removed.
  35
  36 The ".dotest" temporary area "git am" and "git rebase" use is now moved
  37 inside the $GIT_DIR, to avoid mistakes of adding it to the project by
  38 accident.
  39
  40 An ancient merge strategy "stupid" has been removed.
  41
  42
  43 Updates since v1.5.6
  44 --------------------
  45
  46 (subsystems)
  47
  48 * git-p4 in contrib learned "allowSubmit" configuration to control on
  49   which branch to allow "submit" subcommand.
  50
  51 * git-gui learned to stage changes per-line.
  52
  53 (portability)
  54
  55 * Changes for MinGW port have been merged, thanks to Johannes Sixt and
  56   gangs.
  57
  58 * Sample hook scripts shipped in templates/ are now suffixed with
  59   *.sample.  We used to prevent them from triggering by default by
  60   relying on the fact that we install them as unexecutable, but on
  61   some filesystems this approach does not work.  Instead of running
  62   "chmod +x" on them, the users who want to activate these samples
  63   as-is can now rename them dropping *.sample suffix.
  64
  65 * perl's in-place edit (-i) does not work well without backup files on Windows;
  66   some tests are rewritten to cope with this.
  67
  68 (documentation)
  69
  70 * Updated howto/update-hook-example
  71
  72 * Got rid of usage of "git-foo" from the tutorial and made typography
  73   more consistent.
  74
  75 * Disambiguating "--" between revs and paths is finally documented.
  76
  77 (performance, robustness, sanity etc.)
  78
  79 * index-pack used too much memory when dealing with a deep delta chain.
  80   This has been optimized.
  81
  82 * reduced excessive inlining to shrink size of the "git" binary.
  83
  84 * verify-pack checks the object CRC when using version 2 idx files.
  85
  86 * When an object is corrupt in a pack, the object became unusable even
  87   when the same object is available in a loose form,  We now try harder to
  88   fall back to these redundant objects when able.  In particular, "git
  89   repack -a -f" can be used to fix such a corruption as long as necessary
  90   objects are available.
  91
  92 * Performance of "git-blame -C -C" operation is vastly improved.
  93
  94 * git-clone does not create refs in loose form anymore (it behaves as
  95   if you immediately ran git-pack-refs after cloning).  This will help
  96   repositories with insanely large number of refs.
  97
  98 * core.fsyncobjectfiles configuration can be used to ensure that the loose
  99   objects created will be fsync'ed (this is only useful on filesystems
 100   that does not order data writes properly).
 101
 102 * "git commit-tree" plumbing can make Octopus with more than 16 parents.
 103   "git commit" has been capable of this for quite some time.
 104
 105 (usability, bells and whistles)
 106
 107 * even more documentation pages are now accessible via "man" and "git help".
 108
 109 * A new environment variable GIT_CEILING_DIRECTORIES can be used to stop
 110   the discovery process of the toplevel of working tree; this may be useful
 111   when you are working in a slow network disk and are outside any working tree,
 112   as bash-completion and "git help" may still need to run in these places.
 113
 114 * By default, stash entries never expire.  Set reflogexpire in [gc
 115   "refs/stash"] to a reasonable value to get traditional auto-expiration
 116   behaviour back
 117
 118 * Longstanding latency issue with bash completion script has been
 119   addressed.  This will need to be backmerged to 'maint' later.
 120
 121 * pager.<cmd> configuration variable can be used to enable/disable the
 122   default paging behaviour per command.
 123
 124 * "git-add -i" has a new action 'e/dit' to allow you edit the patch hunk
 125   manually.
 126
 127 * git-am records the original tip of the branch in ORIG_HEAD before it
 128   starts applying patches.
 129
 130 * git-apply can handle a patch that touches the same path more than once
 131   much better than before.
 132
 133 * git-apply can be told not to trust the line counts recorded in the input
 134   patch but recount, with the new --recount option.
 135
 136 * git-apply can be told to apply a patch to a path deeper than what the
 137   patch records with --directory option.
 138
 139 * git-archive can be told to omit certain paths from its output using
 140   export-ignore attributes.
 141
 142 * git-archive uses the zlib default compression level when creating
 143   zip archive.
 144
 145 * git-archive's command line options --exec and --remote can take their
 146   parameters as separate command line arguments, similar to other commands.
 147   IOW, both "--exec=path" and "--exec path" are now supported.
 148
 149 * With -v option, git-branch describes the remote tracking statistics
 150   similar to the way git-checkout reports by how many commits your branch
 151   is ahead/behind.
 152
 153 * git-branch's --contains option used to always require a commit parameter
 154   to limit the branches with; it now defaults to list branches that
 155   contains HEAD if this parameter is omitted.
 156
 157 * git-branch's --merged and --no-merged option used to always limit the
 158   branches relative to the HEAD, but they can now take an optional commit
 159   argument that is used in place of HEAD.
 160
 161 * git-bundle can read the revision arguments from the standard input.
 162
 163 * git-cherry-pick can replay a root commit now.
 164
 165 * git-clone can clone from a remote whose URL would be rewritten by
 166   configuration stored in $HOME/.gitconfig now.
 167
 168 * "git-clone --mirror" is a handy way to set up a bare mirror repository.
 169
 170 * git-cvsserver learned to respond to "cvs co -c".
 171
 172 * git-diff --check now checks leftover merge conflict markers.
 173
 174 * "git-diff -p" learned to grab a better hunk header lines in
 175   Pascal/Delphi and Ruby source files, and also pays attention to
 176   chapter and part boundary in TeX documents.
 177
 178 * When remote side used to have branch 'foo' and git-fetch finds that now
 179   it has branch 'foo/bar', it refuses to lose the existing remote tracking
 180   branch and its reflog.  The error message has been improved to suggest
 181   pruning the remote if the user wants to proceed and get the latest set
 182   of branches from the remote, including such 'foo/bar'.
 183
 184 * fast-export learned to export and import marks file; this can be used to
 185   interface with fast-import incrementally.
 186
 187 * fast-import and fast-export learned to export and import gitlinks.
 188
 189 * "gitk" left background process behind after being asked to dig very deep
 190   history and the user killed the UI; the process is killed when the UI goes
 191   away now.
 192
 193 * git-rebase records the original tip of branch in ORIG_HEAD before it is
 194   rewound.
 195
 196 * "git rerere" can be told to update the index with auto-reused resolution
 197   with rerere.autoupdate configuration variable.
 198
 199 * git-rev-parse learned $commit^! and $commit^@ notations used in "log"
 200   family.  These notations are available in gitk as well, because the gitk
 201   command internally uses rev-parse to interpret its arguments.
 202
 203 * git-rev-list learned --children option to show child commits it
 204   encountered during the traversal, instead of showing parent commits.
 205
 206 * git-send-mail can talk not just over SSL but over TLS now.
 207
 208 * git-shortlog honors custom output format specified with "--pretty=format:".
 209
 210 * "git-stash save" learned --keep-index option.  This lets you stash away the
 211   local changes and bring the changes staged in the index to your working
 212   tree for examination and testing.
 213
 214 * git-stash also learned branch subcommand to create a new branch out of
 215   stashed changes.
 216
 217 * git-status gives the remote tracking statistics similar to the way
 218   git-checkout reports by how many commits your branch is ahead/behind.
 219
 220 * "git-svn dcommit" is now aware of auto-props setting the subversion user
 221   has.
 222
 223 * You can tell "git status -u" to even more aggressively omit checking
 224   untracked files with --untracked-files=no.
 225
 226 * Original SHA-1 value for "update-ref -d" is optional now.
 227
 228 * Error codes from gitweb are made more descriptive where possible, rather
 229   than "403 forbidden" as we used to issue everywhere.
 230
 231 (internal)
 232
 233 * git-merge has been reimplemented in C.
 234
 235
 236 Fixes since v1.5.6
 237 ------------------
 238
 239 All of the fixes in v1.5.6 maintenance series are included in
 240 this release, unless otherwise noted.
 241
 242 * git-clone ignored its -u option; the fix needs to be backported to
 243   'maint';
 244
 245 * git-mv used to lose the distinction between changes that are staged
 246   and that are only in the working tree, by staging both in the index
 247   after moving such a path.
 248
 249 ---
 250 exec >/var/tmp/1
 251 O=v1.6.0-rc2-21-g0bb3a0b
 252 echo O=$(git describe refs/heads/master)
 253 git shortlog --no-merges $O..refs/heads/master ^refs/heads/maint