X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=Documentation%2Fgit-update-index.txt;h=6bc296787e99f1e5fee159a99aba89f6035b6265;hb=9e5972413b4873dc143c4046c6e74eb608ace32b;hp=aff01798cdf6b114009eae8dfc4f2866a8a24d17;hpb=226c051adb0f64772f807287e130a6a546b95fbd;p=thirdparty%2Fgit.git

diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt
index aff01798cd..6bc296787e 100644
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -170,6 +170,14 @@ may not support it yet.
 	the shared index file. This mode is designed for very large
 	indexes that take a significant amount of time to read or write.
 
+--untracked-cache::
+--no-untracked-cache::
+	Enable or disable untracked cache extension. This could speed
+	up for commands that involve determining untracked files such
+	as `git status`. The underlying operating system and file
+	system must change `st_mtime` field of a directory if files
+	are added or deleted in that directory.
+
 \--::
 	Do not interpret any more arguments as options.