Update 08:15PM PST - Masteries and Armor Specializations are available for testing. (Cataclysm Masteries List, Armor Specialization List)
Update 08:05PM PST - The Mounts & Companion Pets are now in the spellbook with a brand new interface.
Update 08:05PM PST - The UI for Paladin's Holy Power is here.
Update 07:40PM PST - Added Guild vendor rewards.
Update 07:25PM PST - Added Tol Barad Reputation Rewards.
Update 07:10PM PST - Relics slots have stats now and are just named Relic now it seems. (Totems, Sigils, Librams, etc)
Update 07:00PM PST - Tol Barad, the new PvP/Daily Quest zone is open for testing, and people keep trying to hurt me. More on that later.
Cataclysm Beta - Build 12759
A new build is being deployed on beta realms, just like any beta build, it will be painful, a lot of stuff will break, and I have no idea if I'll be able to give you all the content on the first day.
On the upside, Thrall is getting a new model. Stay tuned for changes!
Guild Vendor Rewards
The Guild Vendor is here, a lot of items are placeholders but it should give you a pretty good idea of what it will offer.
And if you're wondering.
Loading screens for each continent have been updated.
Spellbook - Mounts and Companion Pets
The Mounts & Companion Pets are now in the spellbook with a brand new interface.
Tol Barad is open for testing, this is a new outdoor/PvP zone with a daily quest area for the faction controlling it. More on that later.
Relic Slots Items
All classes items in the relic slot now have stats.
Masteries and Armor Specialization
Masteries and Armor Specializations are now available for testing.
The interface for the new Holy Power resource is here.
The Video Settings menu has been expanded, looks like we'll be able to tweak more things in Cataclysm.
Creature Damage Output Changes
New Guild Advancement Forum