I'll try to keep a list of changed items and I'll do indepth into our BT FAQ one of these days to give you a view on the impact it has on our gameplay. Very important changes here. Busy few days ahead of me here. :O
What this does mean, however, is the rumors of a BT update might be further off than previously assumed. They wouldn't have given us a FAQ update if they were just planning on re-releasing the codex. :/