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Diffstat (limited to 'Documentation/git-update-index.txt')
| -rw-r--r-- | Documentation/git-update-index.txt | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt index 9d0b1515c5..dd36d13285 100644 --- a/Documentation/git-update-index.txt +++ b/Documentation/git-update-index.txt @@ -145,7 +145,15 @@ you will need to handle the situation manually. --index-version <n>:: Write the resulting index out in the named on-disk format version. - The current default version is 2. + Supported versions are 2, 3 and 4. The current default version is 2 + or 3, depending on whether extra features are used, such as + `git add -N`. ++ +Version 4 performs a simple pathname compression that reduces index +size by 30%-50% on large repositories, which results in faster load +time. Version 4 is relatively young (first released in in 1.8.0 in +October 2012). Other Git implementations such as JGit and libgit2 +may not support it yet. -z:: Only meaningful with `--stdin` or `--index-info`; paths are |