Refs -- Corrected deprecation version for CachedStaticFilesStorage.
@@ -372,7 +372,7 @@ hashing algorithm.
.. class:: storage.CachedStaticFilesStorage
-.. deprecated:: 2.1
+.. deprecated:: 2.2
``CachedStaticFilesStorage`` is deprecated as it has some intractable
problems, some of which are outlined below. Use
