Wow, nice new stuff! Probably one of the most exciting additions is the Umbra Occlusion Booster for enhanced occlusion. I believe Umbra OB typically runs between $9,000 - $50,000 for a license per title! Not bad for what basically amounts to a freebie!
The list was buried a couple of links down. Honestly, aside from Umbra, there is not a lot of world-shaking changes from what I--a non-Unity user--can tell.