General Changes
The Spirit Walker hero has been removed.
A new hero has been added: Far Seer.
Trek's Lumber quest now rewards 75 gold up from 50.
The damage caused by Mur'Gul Toxic Gills explosion has been increased.
The broken gate at the beginning of the map can now be opened from the other side.

Classes

Avenger
The AoE of Shattering Throw has been increased.
Hunter
Damage bonus provided by Trueshot Aura for level 1 increased to 15% up from 10%.
Warrior
Duration of Rend reduced to 15 seconds down from 18.
Damage dealt by Rend reduced as follows:
-Level 1: reduced to 150 down from 360.
-Level 2: reduced to 300 down from 540.
-Level 3: reduced to 450 down from 720.
-Level 4: reduced to 600 down from 900.

Items
Fixed a bug where some items didn't contribute to damage scaling abilities.
The Hell Class item of the Death Knight now has a new effect.
Reality Shifter now has a new effect.
Undead Slayer now has a maximum number of times that its effect can occur.
Fixed a bug where Zek'roth, Destroyer of Worlds used to grant bonuses before being assembled.
A new Shadow Crystals item has been added: Devastation.
Players can now open locked doors even if the key is in their Backpack.
The reicpe components for Hell's Reach have been slightly changed.
Healing and Rejuvenation Potions now display the amount healed as a floating text message.
A new Legendary item has been added: Dawn.
Fixed a tooltip mistake with Boots of Deception.
Fixed a bug where Grasp of Neptulon didn't display it's cooldown timer.