1.2 is out now, the changes are Increased Player stats, and doubled Belt Potion Storage Sizes. And the Book of Skill Drop rarity has been lowered, it Drops at any Character level on a rarity a bit higher than a perfect gem (for a level 18 character). And a little less rare than a Zod Rune (For an endgame character).
Get it here:
or on my Main ModDB Download Page.