Gadu-Gadu has conferences. XMPP/Jabber has MUC - Multi User Chat. MUC is much more like IRC - conversation is done in rooms which people can join and leave.
For now MUC support in Kadu is very basic - you can join and leave room (protected with password or not), see everybody in that room, chat with people and see chat's history. As MUC XEP is very, very, very long I've decided to not implement everything at once (it would take several years at least). We will just add features that people needs in next releases.
|Join Room Window|
Movable history file
Again, we have updated history file format. If you've used older alpha version of 0.12.0 you must remove kadu-0.12.conf.xml and history2.db from your Kadu profile directory.
New history format can be moved between installations of Kadu without problems. It does not use UUIDs anymore to connect database entries with contacts and chats. Thanks to that we were able to remove a lot of data from configuration file (it is now 30% smaller for me).