Rated Battlegrounds
The achievements to win 100 rated Battlegrounds have been renamed to "Veteran of the Alliance" and "Veteran of the Horde", and now award those titles.
Achievements to win 300 rated Battlegrounds have been added, awarding the "Warbound" and "Warbringer" titles to the Alliance and Horde respectively.


Death Knight
Unholy
Desecration no longer triggers when an applicable strike hits a snare-immune target. This is primarily to avoid unnecessary spell effect clutter during boss encounters.

Mage
Frost
Fingers of Frost bonus damage applied to Ice Lance has been increased to 25%, up from 15%.
Frostbolt damage has been increased by 10%.

Paladin
Holy
Illuminated Healing shield duration is now 15 seconds, up from 8 seconds. In addition, Illuminated Healing has been increased to provide 1.5% effect per mastery, up from 1.25%.

Shaman
Enhancement
Improved Fire Nova has been redesigned and replaced by a talent called Seasoned Winds. When an enemy spell cast is successfully prevented with Wind Shear, the shaman gains magical resistance (in an amount equal to what a protection totem/aura would grant, stacking with such buffs) to the spell school(s) of the interrupted spell (except for Holy spells), lasting 10 seconds.

Guilds
The amount of guild experience rewarded for rated Battleground guild group wins has been dramatically increased.
Players are now rewarded guild experience for Honorable Kills in the field.
Players are now rewarded guild experience for Battleground wins in Battleground brackets up to level 80.
Arena teams are now awarded guild experience for wins. The entire team must be members of the same guild to earn this experience.

Items
All trade goods available for purchase with Honor or Justice Points from the associated commodities vendors have had their prices reduced by 50%.
Maelstrom Crystals are now available for purchase with Honor or Justice Points from the associated commodities vendors.

PvP
Arenas
The Ring of Valor has returned! It should now be playable again in the Arena map rotation.
New starting areas have been added for Ring of Valor. Players will no longer enter the Arena on the elevator. It's been removed. Instead players will start in a room at opposite ends of the Arena.