From their announcement:
The Unbridled Fury 2011 Edition rulebook is out.
Whilst it’s not quite a full year since the last one, we decided to kick off the year with a new version of the game rather than get it done ‘somewhere else during the year’. Now the game truly is a 2011 Edition too.
We trust that all Unbridled Fury players out there will benefit from this latest revision. Many of the things found throughout the previous year (both by us and by you lot) have been fixed. We didn’t really add anything new, though there will be some previously unseen stuff appearing later in the year.