+1999-05-28  Keiichi Suzuki  <keiichi@nanap.org>
+
+       * lisp/message.el (message-header-encode-function): Call
+       `eword-encode-header' with optional argument code-conversion.
+
+       * Nana-TIPS.ja: Add description of variable
+       `message-encode-function'.
+
+       * lisp/gnus.el (gnus-version-number): Update to 6.12.17.
+
+1999-05-14  Keiichi Suzuki  <keiichi@nanap.org>
+
+       * lisp/dgnushack.el: Add `byte-optimizer' to `buffer-string',
+       `backward-char' and `char-before'.
+       ;; Thanks for Shuhei KOBAYASHI's suggestion.
+
 1999-05-14  Keiichi Suzuki  <keiichi@nanap.org>
 
        * Nana-gnus: Version 6.12.16 released.