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-rw-r--r--doc/modules/ROOT/pages/configuration.adoc4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/modules/ROOT/pages/configuration.adoc b/doc/modules/ROOT/pages/configuration.adoc
index 3b36023..dc46141 100644
--- a/doc/modules/ROOT/pages/configuration.adoc
+++ b/doc/modules/ROOT/pages/configuration.adoc
@@ -153,6 +153,10 @@ The project cache is persistent and will be preserved during Emacs restarts.
You can purge an individual file from the cache with `M-x projectile-purge-file-from-cache` or an
entire directory with `M-x projectile-purge-dir-from-cache`.
+NOTE: Prior to Projectile 2.9 the cache for all projects was serialized to the same file.
+In Projectile 2.9 this was changed and now each project has it's own cache file relative to
+the project's root directory.
+
=== File exists cache
Projectile does many file existence checks since that is how it identifies a