Tawsi released a new version of 360 Media Server, a upnp media server designed for streaming music to the Xbox 360. It is capable of transcoding many non supported formats including AAC, Ogg and Flac as well as the formats the 360 already supports (MP3 and WMA). Also capable of reading iTunes XML.
It's working on Windows, Mac and Linux.
No details found on the exact changelog in this new version.

http://sourceforge.net/projects/x360mediaserve/