Okay, so first we’‘ll go with the bug! In the new 1.1.0 Beta 2, join/part messages are not sent in IRC channels. So if a new user joins a channel, there’‘s no MUC message stating they’‘ve joined. The same is true for parting. As new people enter the channel, leave, etc., the list of MUC participants doesn’'t seem to change.
Now, feature request! On Freenode, we need to be able to handle notices in some way. I don’‘t think there’'s any other way to see what NickServ/ChanServ are saying. You should be able to send them message without any problem, since they respond to those, but the responses only occur in notices. Perhaps a way to toggle notices on and off by directly sending the transport a command? Just something to think about.