Documentation / RelNotes / 1.7.11.txton commit Merge branch 'sb/object-store-replace' (174774c)
   1Git v1.7.11 Release Notes
   2=========================
   3
   4Updates since v1.7.10
   5---------------------
   6
   7UI, Workflows & Features
   8
   9 * A new mode for push, "simple", which is a cross between "current"
  10   and "upstream", has been introduced. "git push" without any refspec
  11   will push the current branch out to the same name at the remote
  12   repository only when it is set to track the branch with the same
  13   name over there.  The plan is to make this mode the new default
  14   value when push.default is not configured.
  15
  16 * A couple of commands learned the "--column" option to produce
  17   columnar output.
  18
  19 * A third-party tool "git subtree" is distributed in contrib/
  20
  21 * A remote helper that acts as a proxy and caches ssl session for the
  22   https:// transport is added to the contrib/ area.
  23
  24 * Error messages given when @{u} is used for a branch without its
  25   upstream configured have been clarified.
  26
  27 * Even with the "-q"uiet option, "checkout" used to report setting up
  28   tracking.  Also "branch" learned the "-q"uiet option to squelch
  29   informational message.
  30
  31 * Your build platform may support hardlinks but you may prefer not to
  32   use them, e.g. when installing to DESTDIR to make a tarball and
  33   untarring on a filesystem that has poor support for hardlinks.
  34   There is a Makefile option NO_INSTALL_HARDLINKS for you.
  35
  36 * The smart-http backend used to always override GIT_COMMITTER_*
  37   variables with REMOTE_USER and REMOTE_ADDR, but these variables are
  38   now preserved when set.
  39
  40 * "git am" learned the "--include" option, which is an opposite of
  41   existing the "--exclude" option.
  42
  43 * When "git am -3" needs to fall back to an application of the patch
  44   to a synthesized preimage followed by a 3-way merge, the paths that
  45   needed such treatment are now reported to the end user, so that the
  46   result in them can be eyeballed with extra care.
  47
  48 * The output from "diff/log --stat" used to always allocate 4 columns
  49   to show the number of modified lines, but not anymore.
  50
  51 * "git difftool" learned the "--dir-diff" option to spawn external
  52   diff tools that can compare two directory hierarchies at a time
  53   after populating two temporary directories, instead of running an
  54   instance of the external tool once per a file pair.
  55
  56 * The "fmt-merge-msg" command learned to list the primary contributors
  57   involved in the side topic you are merging in a comment in the merge
  58   commit template.
  59
  60 * "git rebase" learned to optionally keep commits that do not
  61   introduce any change in the original history.
  62
  63 * "git push --recurse-submodules" learned to optionally look into the
  64   histories of submodules bound to the superproject and push them
  65   out.
  66
  67 * A 'snapshot' request to "gitweb" honors If-Modified-Since: header,
  68   based on the commit date.
  69
  70 * "gitweb" learned to highlight the patch it outputs even more.
  71
  72Foreign Interface
  73
  74 * "git svn" used to die with unwanted SIGPIPE when talking with an HTTP
  75   server that uses keep-alive.
  76
  77 * "git svn" learned to use platform specific authentication
  78   providers, e.g. gnome-keyring, kwallet, etc.
  79
  80 * "git p4" has been moved out of the contrib/ area and has seen more
  81   work on importing labels as tags from (and exporting tags as labels
  82   to) p4.
  83
  84Performance and Internal Implementation (please report possible regressions)
  85
  86 * Bash completion script (in contrib/) have been cleaned up to make
  87   future work on it simpler.
  88
  89 * An experimental "version 4" format of the index file has been
  90   introduced to reduce on-disk footprint and I/O overhead.
  91
  92 * "git archive" learned to produce its output without reading the
  93   blob object it writes out in memory in its entirety.
  94
  95 * "git index-pack" that runs when fetching or pushing objects to
  96   complete the packfile on the receiving end learned to use multiple
  97   threads to do its job when available.
  98
  99 * The code to compute hash values for lines used by the internal diff
 100   engine was optimized on little-endian machines, using the same
 101   trick the kernel folks came up with.
 102
 103 * "git apply" had some memory leaks plugged.
 104
 105 * Setting up a revision traversal with many starting points was
 106   inefficient as these were placed in a date-order priority queue
 107   one-by-one.  Now they are collected in the queue unordered first,
 108   and sorted immediately before getting used.
 109
 110 * More lower-level commands learned to use the streaming API to read
 111   from the object store without keeping everything in core.
 112
 113 * The weighting parameters to suggestion command name typo have been
 114   tweaked, so that "git tags" will suggest "tag?" and not "stage?".
 115
 116 * Because "sh" on the user's PATH may be utterly broken on some
 117   systems, run-command API now uses SHELL_PATH, not /bin/sh, when
 118   spawning an external command (not applicable to Windows port).
 119
 120 * The API to iterate over the refs/ hierarchy has been tweaked to
 121   allow walking only a subset of it more efficiently.
 122
 123Also contains minor documentation updates and code clean-ups.
 124
 125
 126Fixes since v1.7.10
 127-------------------
 128
 129Unless otherwise noted, all the fixes since v1.7.10 in the maintenance
 130releases are contained in this release (see release notes to them for
 131details).
 132
 133 * "git submodule init" used to report "registered for path ..."
 134   even for submodules that were registered earlier.
 135   (cherry-pick c1c259e jl/submodule-report-new-path-once later to maint).
 136
 137 * "git diff --stat" used to fully count a binary file with modified
 138   execution bits whose contents is unmodified, which was not quite
 139   right.