You can find the list of fixes applied to the game since 5.2 at this address with in particular the last changes made on March 21.
- Classes
- Warlock
- The Demon Gate should no longer disappear when the Warlock moves too far away from it.
- Warlock
- quests
- Chamberlain Pieces: Statue pieces no longer disappear when picked up, allowing other players to pick them up as well.
- Cold as a Stone: Fixed an issue that prevented players from interacting with Gravekeeper Statues.
- Creatures
- Oondastas for everyone! Oondasta now reappears much more frequently.
- The principle of non-intervention is again in force for Black Market Guards in the event of clashes between the Horde and the Alliance (PvP combat).
- Raids, dungeons and scenarios
- Throne of thunder
- The gastropod should now show a preference for ranged attackers.
- The number of creatures in the area leading to Ji Kun has been reduced for Raid Tool mode.
- Players who gained an additional dice roll after defeating Iron Qwon on Heroic difficulty could receive a non-heroic version of the Milestone Mark; this has been corrected.
- Fixed an issue that prevented Lei Shen's damage from Shattering Thunder, Lightning Lash, Overload, and Unloaded Energy from being reduced by Feint.
- Twin concubines
- Suen and Lu'lin health reduced on Heroic difficulty to 25.
- Icecrown Citadel
- Fixed an issue that prevented Loot Maintainers from awarding Frost Shadow Shards to another player.
- Temple d'Ahn'Qiraj
- Prophet Skeram has loot again and is no longer creating illusions just yet. It will return to normal in a future update.
- Throne of thunder
- Objects
- The casting time required to complete the ritual to summon bosses using Shan'ze Ritual Stones on Isle of Thunder has been reduced from 2 seconds to 5 seconds.
- All Unusual Quality (green) loot items on Isle of Thunder should now be disenchantable.
- Darkmoon Whistle should no longer disrupt other players' camouflage.
- Essence of the Breeze should now only be usable on the Pandarian Continent.
