There are lots. I have the “All about Alpha 2 Gold,” book at home from japan. I’ll write more about when I get home and have a chance to look at it tonight.
Off the top of my head.
All FB’s do less damage.
Ryu, Red fireball new motion, more frames
Nerfed Priority on many moves for Chun & Adon.
Adon level one super always jumps at end, even on block.
Big recovery hit box on Shoto sweeps.
Sim gets yoga tempest (big ass super flame).
Gen gets different jumps between forms. His touch of death is better (counts faster does more life).
Guy, New Super.
That is all I can remeber for now.