The changes to the skills is my favorite thing about this update.
For people who don't know:
New skill: Spellcraft (+1 spell power to most types (every type that the other skills don't))
Perform: +1 sonic spell power per rank
Heal: +1 Healing and Negative spell power per rank
Repair: +1 Repair and Rust spell power per rank
I think this is a great change to the heal and repair skills, and it is good that it adds equivalent bonuses to the other spell power types.