Adium is an open source and free instant messaging application for Mac OS X, written using the OS X Cocoa API.

Based on the libpurple protocol library, Adium can connect you to any number of messaging accounts on any combination of supported messaging services (see further down for the list) and then chat with other people using those services.

Supported services:
· XMPP ("Jabber"), including: Google Talk, LJ (LiveJournal) Talk, Facebook Chat, Gizmo5
· MSN Messenger
· AOL Instant Messenger (AIM), including MobileMe (formerly known as .Mac)
· Yahoo! Messenger, including Yahoo! Japan Messenger
· ICQ
· Bonjour, compatible with iChat
· Twitter
· IRC
· MySpaceIM
· Gadu-Gadu
· IBM Lotus Sametime
· Tencent QQ
· Novell GroupWise

NOTE: The Adium team does not host any IM services. Adium is a third-party client for connecting to services run by other people (mostly companies).

Here are some key features of "Adium":

· Open Source, so everyone can see how Adium works and help improve it
· Support for a wide range of different Instant Messaging services (see the full list)
· A delightful UI: Tabbed chat windows
· Mac OS X integration: Address Book integration and WebKit Message View(Theme your chat windows)
· Combined Contacts: Merge your contacts so that each one represents a person, not an account
· A sophisticated events system (including Growl notifications)
· OTR Encryption
· File Transfer
· Xtras and many, many other customization options
· A beautiful icon, the "Adiumy" duck
· Translations: Adium speaks 27 different languages

What's New in This Release: [ read full changelog ]

General:
· Fixed permission issues caused by previous release being built incorrectly.
· Blacklisted the Skype plugin in 1.5, as it's known to be broken.
· Restored LiveJournal connectivity by removing the hard-coded server name, they have an SRV record now.

Localisation:
· Updated localisations: Italian (#15810, #15808).