A new binary protocol is used. The new protocol saves a tiny bit of bandwidth and is also considerably more secure. A zero-copy UDP thread is used for Murmur, which will help murmur scale beyond thousands of users. Servers can now register in the global registry and be available to any user through a server browser. External authentication allows you to create DBus-based plugs between murmur and any external authentication method. An example for phpBB3 is provided. Linux in-game GL overlay was added. Custom user textures may be uploaded.
This release has some minor sound improvements and a rewrite of the ALSA subsystem for Linux. murmur now supports MySQL, and has a dedicated UDP thread to ensure that SQL query response doesn't hold up voice communication. There's also DBUS RPC control of murmur, meaning you can easily script and integrate it into your infrastructure.