World of Warcraft Escalation patch 

Patch 5.3, or Escalation, for World of Warcraft is available today delivering many additions. A new Battleground called Deepwind Gorge as well as a new Arena, The Tiger's Peak, are included along with new scenarios Battle on the High Seas, Blood in the Snow, Dark Heart of Pandaria and The Secrets of Ragefire.

Loot specialisation and increased pet battle accuracy also add to the changes as well as six new Heroic difficulties. New tasks for Alliance and Horde members have been added in the Escalation quest campaign as well as the addition of the Barrens Battlefield, thanks to Massively.

Check out the full patch notes here.