Performance enhancements, faster startup time, especially with large number of chats open. Dynamic message loading for chats. By default, only the previous 50 messages (configurable) in a chat is loaded at startup, scroll up to load more. Groups button added to buddy list (as in contacts.app)- Search moved to inside buddy list (as in contacts.app) Several bug fixes, including several Facebook sync crash problems. Several minor UI enhancements. Currently up in the AppStore here.