untracked cache: guard and disable on system changes

[thirdparty/git.git] / Documentation / technical / index-format.txt

diff --git a/Documentation/technical/index-format.txt b/Documentation/technical/index-format.txt
index db59a13600382004bbfc93d1b882afd0d3f47d61..b7093af8b23e6a83741b81678e7aae0c5ff7c88a 100644 (file)
--- a/Documentation/technical/index-format.txt
+++ b/Documentation/technical/index-format.txt
@@ -242,6 +242,10 @@ Git index format
 
   The extension starts with
 
+  - A sequence of NUL-terminated strings, preceded by the size of the
+    sequence in variable width encoding. Each string describes the
+    environment where the cache can be used.
+
   - Stat data of $GIT_DIR/info/exclude. See "Index entry" section from
     ctime field until "file size".