Mostly changes for ferals; haven’t seen much for any of the other specs, but I’ll be happy to add them if there are any.
Cat Form’s 25% speed boost no longer stacks multiplicatively with Dash. An expected bug fix, though it remains to be seen exactly how all the different speed combinations are going to shake out. There’s LOTS of different ways of adding movement speed now. (permanent–Cat Form, Travel Form, Feline Swiftness, PvP set bonus, boot enchant, metagem; temporary–Dash, Stampeding Roar, Nitro Boots, many others) and figuring out how all this stacks together now is going to take some comprehensive testing.
Rake damage reduced by 17%, Shred/Mangle/Ravage damage increased by 25%. This is from the class analysis thread, and is in direct response to us finding and exploiting Rake’s scaling last week. :) This change is going to shake everything up a bit; Dream of Cenarius/mastery will come down in value in relation to Incarnation/FoN and other secondary stats, and the Rake filler rotation is pretty much dead. (It might still be a small DPS gain at 85, but not at 90, looks like.) More details in the forums.
Glyph of Shred is bugged. For some reason, Glyph of Shred causes Shreds while under Tiger’s Fury to hit weaker, instead of stronger. Oops. I don’t see any mention of a fix to this in the patch notes, so we’ll see if it’s still like this when servers come up.