Bugfixes in 3.3.

Many bugs fixed say the latest patch notes of 3.3. but I think the most noteworthy, and the one that should be called out specifically is:

Tier 2 Helmets: Looting these items from Nefarion in Blackwing Lair will no longer trigger the Onyxia's Lair (level 60) Feat of Strength achievement.

Go get your achievement while it lasts!

Updates on patch notes can be found here.