Release Notes: Many improvements were made and new features were added, including archiving, new fontification faces, greatly improved new message notification options, a revamped and improved buddy list display (it is now more of a "control panel"), and lots of other good stuff.
Release Notes: A bug that broke compatability with Emacs pre 20.2 was fixed.
Release Notes: Bugfixes galore, compatibility checking between GNU emacs, NTemacs, and Xemacs (should work well with other versions, although not tested), and some underlying changes were made in the tocstr protocols.
Release Notes: Fixes for Permit and Deny, many other important bugfixes, and extensive code cleanups and optimization.
Release Notes: A more stable release, this version includes keepalive packet support, better away message functionality as well as various other bugfixes and quirks that make it a much nicer client to use.
Release Notes: New functionality has been added, including the setting of away messages which are conveyed to the server and recognition of buddies who are marked as "Away" in your buddylist, and a quick binding for the muting of the system bell has been added.