Armorist also got a new class ability and a major modification to allow them to boost non-summoned equipment.

Incanter got a huge nerf to Master of Creation.

Also, anything of a move action or higher action cost provokes. There's a whole clause on the vasic spheres of power rules page that has been changed and it's confusing as hell as far as grammar. Not certain, but it sounds like swift action or lower action cost isn't subject to SR or anti magic fields.

There are many changes, and the class pages are the only place where you can compare and contrast. It's kinda rough, especially for my crew who is preparing to start a campaign with it in the next few months.