http://forums.invisionpower.com/index.php?showtopic=118715

The first public release of IPB 2.0 came out today. The release notice says, "This release is not suitable for a main production board, it is for testing only" InvisionFree will be working with this first release, but there will not be a full update of InvisionFree until a stable release of IPB 2.0 is out.