WoW 3.1 Official Patch Notes - Part 2

If you missed it, part I of WoW’s 3.1 patch notes can be found here.
Dungeons and Raids

New dungeon maps have been added for all Wrath of the Lich King dungeons.

Eye of Eternity

Malygos will now properly delay before breathing after a Vortex on Heroic difficulty.

Naxxramas

The Chains of Kel’Thuzad will no longer reset the raid’s threat.
The Portal [...]

WoW 3.1 Official Patch Notes

Secrets of Ulduar
Since discovering Ulduar in the Storm Peaks, adventurers have journeyed to the titan city to learn more about its mysterious past. Further exploration has revealed that the magnificent complex is above all a prison, intended to permanently confine the Old God of death, Yogg-Saron. This ancient horror has corrupted its guards, and now [...]