I somehow accepted the update last week. I figured I'd try it for a bit. I've found Ableton Live and UAD to appear less stable and I've crashed Live more now than I used to. I actually started the rollback on my machine this morning before I left for work.
I really don't know if it's the update or something else, but they only give you 10 days to do the rollback so I figured I'd take the safe route and go back...
PS: Stylus RMX needed to be re-authorized after the update, and it lost one of the sample selections in it in a project. Was glad I had a backup...