Lots of tweeks...worms and chimeras were nerfed quite a bit. Aspects have a cd now. Rabid was nerfed too.
Death Knight
Blood Presence now increases Stamina by 25%, up from 8%.
Frost
Threat of Thassarian now increases your Frost Strike damage by 40%, down from 50%.
Druid
Hurricane base damage increased by 27% and SP scaling increased by 7%.
Swipe now does 400% weapon damage, up from 375%.
Thrash damage increased by 7%.
Talents
Dream of Cenarius now increases the damage done by your next 2 Moonfire or Sunfire casts by 50%, down from 65%.
Hunter
Aspect of the Beast now has a 1 sec cooldown.
Aspect of the Cheetah now has a 1 sec cooldown.
Aspect of the Fox now has a 1 sec cooldown.
Aspect of the Hawk now has a 1 sec cooldown.
Aspect of the Pack now has a 1 sec cooldown.
Talents
Aspect of the Iron Hawk now has a 1 sec cooldown.
Pets
Burrow Attack now costs 50 Focus, up from 20. Base damage reduced by 50%..
Froststorm Breath now costs 50 Focus, up from 20.
Rabid now increases your pet's attack power by 25% for 20 sec, down from 50%.
Mage
Ice Lance base damage increased by 13%. SP scaling increased by 13%.
Mana Attunement increases mana regeneration by 400%, up from 150%.
Frost
Frostbolt causes the target to take an additional 5% damage from your Frostbolt and Ice Lance, and your Water Elemental's Waterbolt, down from 8%.
Major Glyphs
Glyph of Ice Lance: Your Ice Lance now hits 1 additional target for 40% damage, down from 50%.
Monk
Chi Torpedo damage increased by 10% and healing increased by 25%. AP scaling increased to 51.8%, up from 41.4%.
Spinning Crane Kick (Brewmaster) now does damage every .75 sec and lasts 2.2 sec, rather than every 1 sec for 3 sec.
Spinning Crane Kick Spinning Crane Kick While channeling Spinning Crane Kick, you also heal nearby injured allies for 4,013 every 1 sec for 3 sec. 0.75 sec for 2.2 sec.
Talents
Chi Torpedo damage increased by 10% and healing increased by 25%. AP scaling increased to 51.8%, up from 41.4%.
Invoke Xuen, the White Tiger damage increased by 10%.
Rushing Jade Wind damage increased by 10%. AP scaling increased to 82.5%, up from 75%.
Brewmaster
Stance of the Sturdy Ox now increases Energy regeneration by 10%, down from 30%. Stagger now causes 80% (was 70%) of the damage to happen instantly and the remaining 20% (was 30%) to be divided over 10 sec.
Paladin
Retribution
Divine Storm now does 100% weapon damage, down from 130%.
Mastery: Hand of Light now grants certain spells 15% additional damage as Holy damage, down from 17%.
Priest
Mind Sear damage and SP scaling increased by 30%.
Rogue
Combat
Blade Flurry now reduces energy regeneration by 20% when active, down from 30%.
Subtlety
Premeditation now allows additional combo points to last 18 sec, down from 20.
Shaman
Chain Lightning damage and SP scaling reduced by 18%.
Warlock
Seed of Corruption base seed damage reduced by 30%. Damage target needs to take before explosion and SP scaling reduced by 30%.
Talents
Harvest Life damage and SP scaling reduced by 30%.
Affliction
Seed of Corruption base seed damage reduced by 30%. Damage target needs to take before explosion and SP scaling reduced by 30%.
Demonology
Felguard: Felstorm now does 100% weapon damage, down from 150%.
Hellfire damage and SP scaling reduced by 30%.
Metamorphosis: Void Ray damage and SP scaling reduced by 30%.
Destruction
Fire and Brimstone: Your next Immolate, Incinerate, Conflagrate or Curse will hit all targets within 15 yards of the target and deal 43.4% of their normal damage, down from 55.8%.
Havoc now has a 25 sec cooldown, down from 45 sec.
Pets
Felstorm now does 100% weapon damage, down from 150%.
Warrior
Item - Warrior PvP Set 4P Bonus - Increases your speed by 70% for 3 sec after using Heroic Leap. This replaces the old Item - Warrior PvP Set 4P Bonus.
Talents
Dragon Roar now does a .5 sec knockdown, down from 3 sec.
Raid & Dungeon Abilities
Stomp Splits 750,000 Splits 675,000 damage between all targets within 25 yards.