Documentation / RelNotes-1.6.0.txton commit Documentation: clarify diff --cc (ea3d988)
   1GIT v1.6.0 Release Notes
   2========================
   3
   4User visible changes
   5--------------------
   6
   7With the default Makefile settings, most of the programs are now
   8installed outside your $PATH, except for "git", "gitk", "git-gui" and
   9some server side programs that need to be accessible for technical
  10reasons.  Invoking a git subcommand as "git-xyzzy" from the command
  11line has been deprecated since early 2006 (and officially announced in
  121.5.4 release notes); use of them from your scripts after adding
  13output from "git --exec-path" to the $PATH is still supported in this
  14release, but users are again strongly encouraged to adjust their
  15scripts to use "git xyzzy" form, as we will stop installing
  16"git-xyzzy" hardlinks for built-in commands in later releases.
  17
  18Source changes needed for porting to MinGW environment are now all in the
  19main git.git codebase.
  20
  21By default, packfiles created with this version uses delta-base-offset
  22encoding introduced in v1.4.4.  Pack idx files are using version 2 that
  23allows larger packs and added robustness thanks to its CRC checking,
  24introduced in v1.5.2 and v1.4.4.5.  If you want to keep your repositories
  25backwards compatible past these versions, set repack.useDeltaBaseOffset
  26to false or pack.indexVersion to 1, respectively.
  27
  28GIT_CONFIG, which was only documented as affecting "git config", but
  29actually affected all git commands, now only affects "git config".
  30GIT_LOCAL_CONFIG, also only documented as affecting "git config" and
  31not different from GIT_CONFIG in a useful way, is removed.
  32
  33The ".dotest" temporary area "git am" and "git rebase" use is now moved
  34inside the $GIT_DIR, to avoid mistakes of adding it to the project by
  35accident.
  36
  37An ancient merge strategy "stupid" has been removed.
  38
  39
  40Updates since v1.5.6
  41--------------------
  42
  43(subsystems)
  44
  45* git-p4 in contrib learned "allowSubmit" configuration to control on
  46  which branch to allow "submit" subcommand.
  47
  48* git-gui learned to stage changes per-line.
  49
  50(portability)
  51
  52* Changes for MinGW port have been merged, thanks to Johannes Sixt and
  53  gangs.
  54
  55* Sample hook scripts shipped in templates/ are now suffixed with
  56  *.sample.  We used to prevent them from triggering by default by
  57  relying on the fact that we install them as unexecutable, but on
  58  some filesystems this approach does not work.  Instead of running
  59  "chmod +x" on them, the users who want to activate these samples
  60  as-is can now rename them dropping *.sample suffix.
  61
  62* perl's in-place edit (-i) does not work well without backup files on Windows;
  63  some tests are rewritten to cope with this.
  64
  65(documentation)
  66
  67* Updated howto/update-hook-example
  68
  69* Got rid of usage of "git-foo" from the tutorial and made typography
  70  more consistent.
  71
  72* Disambiguating "--" between revs and paths is finally documented.
  73
  74(performance, robustness, sanity etc.)
  75
  76* index-pack used too much memory when dealing with a deep delta chain.
  77  This has been optimized.
  78
  79* reduced excessive inlining to shrink size of the "git" binary.
  80
  81* verify-pack checks the object CRC when using version 2 idx files.
  82
  83* When an object is corrupt in a pack, the object became unusable even
  84  when the same object is available in a loose form,  We now try harder to
  85  fall back to these redundant objects when able.  In particular, "git
  86  repack -a -f" can be used to fix such a corruption as long as necessary
  87  objects are available.
  88
  89* Performance of "git-blame -C -C" operation is vastly improved.
  90
  91* git-clone does not create refs in loose form anymore (it behaves as
  92  if you immediately ran git-pack-refs after cloning).  This will help
  93  repositories with insanely large number of refs.
  94
  95* core.fsyncobjectfiles configuration can be used to ensure that the loose
  96  objects created will be fsync'ed (this is only useful on filesystems
  97  that does not order data writes properly).
  98
  99* "git commit-tree" plumbing can make Octopus with more than 16 parents.
 100  "git commit" has been capable of this for quite some time.
 101
 102(usability, bells and whistles)
 103
 104* even more documentation pages are now accessible via "man" and "git help".
 105
 106* A new environment variable GIT_CEILING_DIRECTORIES can be used to stop
 107  the discovery process of the toplevel of working tree; this may be useful
 108  when you are working in a slow network disk and are outside any working tree,
 109  as bash-completion and "git help" may still need to run in these places.
 110
 111* By default, stash entries never expire.  Set reflogexpire in [gc
 112  "refs/stash"] to a reasonable value to get traditional auto-expiration
 113  behaviour back
 114
 115* Longstanding latency issue with bash completion script has been
 116  addressed.  This will need to be backmerged to 'maint' later.
 117
 118* pager.<cmd> configuration variable can be used to enable/disable the
 119  default paging behaviour per command.
 120
 121* "git-add -i" has a new action 'e/dit' to allow you edit the patch hunk
 122  manually.
 123
 124* git-am records the original tip of the branch in ORIG_HEAD before it
 125  starts applying patches.
 126
 127* git-apply can handle a patch that touches the same path more than once
 128  much better than before.
 129
 130* git-apply can be told not to trust the line counts recorded in the input
 131  patch but recount, with the new --recount option.
 132
 133* git-apply can be told to apply a patch to a path deeper than what the
 134  patch records with --directory option.
 135
 136* git-archive can be told to omit certain paths from its output using
 137  export-ignore attributes.
 138
 139* git-archive uses the zlib default compression level when creating
 140  zip archive.
 141
 142* With -v option, git-branch describes the remote tracking statistics
 143  similar to the way git-checkout reports by how many commits your branch
 144  is ahead/behind.
 145
 146* git-branch's --contains option used to always require a commit parameter
 147  to limit the branches with; it now defaults to list branches that
 148  contains HEAD if this parameter is omitted.
 149
 150* git-branch's --merged and --no-merged option used to always limit the
 151  branches relative to the HEAD, but they can now take an optional commit
 152  argument that is used in place of HEAD.
 153
 154* git-bundle can read the revision arguments from the standard input.
 155
 156* git-cherry-pick can replay a root commit now.
 157
 158* git-clone can clone from a remote whose URL would be rewritten by
 159  configuration stored in $HOME/.gitconfig now.
 160
 161* git-cvsserver learned to respond to "cvs co -c".
 162
 163* git-diff --check now checks leftover merge conflict markers.
 164
 165* When remote side used to have branch 'foo' and git-fetch finds that now
 166  it has branch 'foo/bar', it refuses to lose the existing remote tracking
 167  branch and its reflog.  The error message has been improved to suggest
 168  pruning the remote if the user wants to proceed and get the latest set
 169  of branches from the remote, including such 'foo/bar'.
 170
 171* fast-export learned to export and import marks file; this can be used to
 172  interface with fast-import incrementally.
 173
 174* fast-import and fast-export learned to export and import gitlinks.
 175
 176* git-rebase records the original tip of branch in ORIG_HEAD before it is
 177  rewound.
 178
 179* "git rerere" can be told to update the index with auto-reused resolution
 180  with rerere.autoupdate configuration variable.
 181
 182* git-rev-list learned --children option to show child commits it
 183  encountered during the traversal, instead of shoing parent commits.
 184
 185* git-send-mail can talk not just over SSL but over TLS now.
 186
 187* git-shortlog honors custom output format specified with "--pretty=format:".
 188
 189* "git-stash save" learned --keep-index option.  This lets you stash away the
 190  local changes and bring the changes staged in the index to your working
 191  tree for examination and testing.
 192
 193* git-stash also learned branch subcommand to create a new branch out of
 194  stashed changes.
 195
 196* git-status gives the remote tracking statistics similar to the way
 197  git-checkout reports by how many commits your branch is ahead/behind.
 198
 199* You can tell "git status -u" to even more aggressively omit checking
 200  untracked files with --untracked-files=no.
 201
 202* Original SHA-1 value for "update-ref -d" is optional now.
 203
 204* Error codes from gitweb are made more descriptive where possible, rather
 205  than "403 forbidden" as we used to issue everywhere.
 206
 207(internal)
 208
 209* git-merge has been reimplemented in C.
 210
 211
 212Fixes since v1.5.6
 213------------------
 214
 215All of the fixes in v1.5.6 maintenance series are included in
 216this release, unless otherwise noted.
 217
 218---
 219exec >/var/tmp/1
 220O=v1.5.6.4-432-g6796399
 221echo O=$(git describe refs/heads/master)
 222git shortlog --no-merges $O..refs/heads/master ^refs/heads/maint