+The development of Riece has started to redesign the Liece IRC client.
+Liece was mainly written by the same author of Riece. Liece is based
+on Irchat (version 3.01) which has been distributed under GNU General
+Public License version 1 or later. Tor Lillqvist <tml@iki.fi> is the
+original author of Irchat. The current Riece source code, however,
+doesn't contain any code from Irchat. For the historical reason, the
+original copyright statement of Irchat is filed under
+doc/irchat-copyright.el.