World of Warcraft: Cataclysm patch 4.1 is now live! For your reference, we've compiled all the new content and features, official art, trailer, and patch notes in this handy blog entry. Patch notes updated 5.2, 4:30 p.m. PDT. Patch Information and Support Known Issues Customer Support & Service Issues Technical Support & Troubleshooting Mac Technical Support & Troubleshooting Hotfixes

In addition to updating Zul’Gurub and Zul’Aman for level-85 players, we're also excited about another patch 4.1 feature: Guild Challenges. Built into the Info panel of the guild user interface, Guild Challenges will be weekly tasks guild groups can tackle for additional guild experience, achievements, and gold.