A new small update for World of Warcraft crept out today, bringing it to version 3.1.2. Some of the changes:

Equipment Manager
* When enabled from the Interface Options menu, this feature will allow players to store sets of equipment, easily swap between saved sets using hotkeys, and pull items directly from backpacks or bank slots (must be at the bank to equip inventory from the bank).
* New art textures have been added for Argent Tournament mounts. Any mounts already purchased from the Argent Tournament vendors will be updated automatically. Argent Tournament mounts with the old textures will still be available for purchase from the Argent Tournament vendors for a small Champion's Seal and gold cost (standard faction requirements apply).

PVP

* Vehicle health and damage output in Strand of the Ancients and Wintergrasp now scale with the item level of the operator's gear. Power scaling is now 1% damage and 1% health per average item level.
* All Wintergrasp daily quests have been changed to a weekly format. The honor and Stone Keeper's Shards rewarded for completing these quests have been increased to compensate.
* The bonus honor for winning the battle in Wintergrasp and controlling/destroying towers has been reduced.

It's only 14mb so the in-game downloader might do the trick, but if not you can download the manual patch locally from AusGamers.