We have released a minor bug fix patch to version 3.2.2a. This sort of patch is very small in size, and we use them to fix specific issues that can’t be hot-fixed. Issues addressed with this patch:

• Fixed an issue players were having with ESC key causing the Battleground queue window to close.
  
• Fixed an issue players were having with entering Battlegrounds while dead or in combat, while already in a Battleground.
  
• Fixed the Wintergrasp zone map so it now shows the status of all walls correctly.
  
• Fixed a crash Mac clients were experiencing with ATI driver.
  
• Fixed the performance of certain spells that have transparent components.

If you have any further questions or concerns please visit http://forums.worldofwarcraft.com/board.html?forumId=10023&sid=1&ST=US-5682975-GdTQ6WiaWgSck9l7XK5LUHNBOm2KiHgwdT5