Adium

Free | Article

Adium is a popular free instant messaging client for Mac OS X that supports multiple protocols through the libraries libezv (for Bonjour) and libpurple (for all other protocols). It is written using Mac OS X's Cocoa API, and it is released under the GNU General Public License, and many other licenses for components that are distributed with Adium. It can connect to AIM, MSN, Jabber, Yahoo, and more.

WHAT'S NEW

Version 1.3.3:

Fixed a crash when using XMPP gateways and removing contacts
Switched to the pidgin-facebook plugin for Facebook connectivity, which should resolve several issues with Facebook and improve the interaction between Adium and Safari when both are logged into Facebook.
Automatically send messages to offline contact when offline messaging is supported rather than prompting to send now / send later (#11127)
Fixed updating the list of users in a groupchat in many situations (#183, #10727)
Tweaked the behavior of standard contact list type-to-search (#11496)
Fixed ICQ aliases storage on the server (#9890)
Fixed problem of events being recorded with wrong contact (#10436)
Fixed visual glitch that made creating a SameTime account impossible in some localizations (#11675)
Tab completion of names in groupchats is now case-insensitive
Updated from libpurple 2.5.2 to 2.5.5mtn