+1998-04-28  Tanaka Akira  <akr@jaist.ac.jp>
+
+       * lisp/gnus-i18n.el (gnus-set-summary-default-charset): Delete
+       buffer-local binding of `default-mime-charset' when the
+       newsgroup doesn't match `gnus-newsgroup-default-charset-alist'.
+
+        * lisp/message.el (message-subject-guess-encoded-re-regexp): New
+        constant.
+        (message-followup-subject): New custom variable.
+       (message-subject-prefix-regexp): New variable.
+        (message-make-subject): New function.
+       (message-reply): Use `message-make-subject'.
+       (message-followup): Use `message-make-subject'.
+
 1998-04-28  Shuhei KOBAYASHI  <shuhei-k@jaist.ac.jp>
 
        * lisp/gnus.el (gnus-version-number): Update to 6.2.3.