+2012-08-31 Dave Abrahams <dave@boostpro.com>
+
+ * auth-source.el (auth-sources): Fix macos keychain access.
+
+ * gnus-int.el (gnus-request-head): When gnus-override-method is set,
+ allow the backend `request-head' function to determine the group
+ name on its own.
+ (gnus-request-expire-articles): Filter out negative article numbers
+ during expiry (Bug#11980).
+
+ * gnus-range.el (gnus-set-difference): Change gnus-set-difference from
+ O(N^2) to O(N). This makes warping into huge groups tolerable.
+
+ * gnus-registry.el (gnus-try-warping-via-registry): Don't act as though
+ you've found the article when you haven't.
+
+ * nnimap.el (nnimap-find-article-by-message-id): Revert 2012-06-19
+ change: "Add recent argument" by Julien Danjou
+