Trillian Astra is a fully featured, stand-alone, skinnable chat client that supports AIM, ICQ, MSN, Yahoo Messenger, and IRC. It provides capabilities not possible with original network clients, while supporting standard features such as audio chat, file transfers, group chats, chat rooms, buddy icons, multiple simultaneous connections to the same network, server-side contact importing, typing notification, direct connection (AIM), proxy support, encrypted messaging (AIM/ICQ), SMS support, and privacy settings.

• Changes in 5.1 Build 19:
• A small update to Trillian for Windows (5.1 Build 19) is going out today, the main purpose of which is to prepare for upcoming Trillian server upgrades. As such, there is no public-facing changelog. The new servers will help us launch some new features later this year which we'll be detailing as soon as we can.