Direct Link: http://www.worldofwarcraft.com/patch...atchnotes.html

Highlights that I find interesting:

-Double the debuffs on mobs!
-Battlegrounds now put level 60s into their own category.
-Hunters get a free respec due to tons of changes.
-Defense on equipment reduced by 33%. Shield slam caused more threat now.
-Zug'Gurub, new 20 man raid instance with lots of loot!
-Arathi Basin, new 15 man battlegounds!
-New level 50 class quest for rogue, mage, priest and hunter!
-Thorium Brotherhood has decided that they will accept iron and heavy leather now to gain faction with them in addition to the traditional kingsblood.