Index: docs/request_response.txt
===================================================================
--- docs/request_response.txt	(revision 6914)
+++ docs/request_response.txt	(working copy)
@@ -452,7 +452,7 @@
 
 ``HttpResponseNotModified``
     The constructor doesn't take any arguments. Use this to designate that a
-    page hasn't been modified since the user's last request.
+    page hasn't been modified since the user's last request (status code 304).
 
 ``HttpResponseBadRequest``
     **New in Django development version.**