-Since 1.0, the lzo library is also used for optional compression. You need this
-library whether or not you plan to enable compression. You can find it at
-http://www.oberhumer.com/opensource/lzo/.
+Since 1.0, the lzo library is also used for optional compression. You can
+find it at http://www.oberhumer.com/opensource/lzo/.
+
+Since 1.1, the libevent library is used for the main event loop. You can find
+it at http://monkey.org/~provos/libevent/.