This morning the World of Warcraft is eeriely silent as the latest mini-expansion The Secrets of Ulduar (aka Patch 3.1) goes live across US and Oceanic servers (with Europe to follow tomorrow). In a few short hours the servers will reopen, along with the doors to Ulduar, the newest dungeon, but if you're not au fait with the ways of Azeroth all this information is likely to leave you a little purplexed but fret not as we've put together a little guide to what you need to know about the latest patch.