Benefactors are essentially backgrounds for Sigil Prep. New intro for the classes section*. And Electives are a new format for proficiencies, feats and a few other things.
*(I was going to cut all the individual classes and put them up as expanded Sigil Prep specific versions are completed, but decided to leave them up. Keep in mind, I am about to make BIG** changes to how each class works.)
**(“BIG” means “moderate, but won’t really change how the class functions”)