The Media Browser team released Media Browser v2.2.3 (Pegasus) yesterday and I didn’t even notice it. It primarily consisted of some performance improvements and bug fixes. You can read all about it here.
Latest releases are always available from the Google Code page, here.
Does the “update automatically” option actually do anything, I always seem to have to download and install manually.
It’s been broken for a while. A reason was given, just can’t remember why