Warlocks

Curse of Exhaustion now reduces movement speed by 30%, down from 50%. Its range has been increased to 40 yards, up from 30.
Demon Armor and Fel Armor no longer cost mana and last until canceled.
Drain Mana has been removed from the game.
Fear now has a PvP duration of 8 seconds
.
Fel Armor has been redesigned. It now surrounds the caster with fel energy, increasing spell power and causing the warlock to be healed for 3% of any single-target spell damage he or she deals.
Seduction (Succubus) now has a PvP duration of 8 seconds.

Human Warlock

Human Warlock

Talent Specializations

Affliction

Unstable Affliction’s silence effect has been reduced to 4 seconds, down from 5.

Demonology

Demonic Aegis now increases the healing effect of Fel Armor by 50/100%.
Demonic Rebirth now highlights summoning spells when active.
Demon Soul: Imp redesigned. It now increases the critical strike chance of all non instant cast Destruction spells by 30%, rather than increasing critical strike damage. Duration reduced to 20 seconds.
Felstorm (Felguard) damage has been reduced by 20%.
Immolation Aura damage has been reduced by roughly 30%.
Inferno
no longer increases the radius of Hellfire, but instead increases the duration of Immolate by 6 seconds in addition to its existing effect.
Master Demonologist (Mastery) benefit from mastery increased by approximately 33%.

Destruction

Burning Embers damage has been reduced by 15%.
Fiery Apocalypse (Mastery) benefit from mastery increased by approximately 8%.
Improved Soul Fire now increases Fire and Shadow damage done by 4/8%, rather than 7/15% spell haste. In addition, this talent has been moved to tier-3 Destruction, switching places with Aftermath.
Shadow and Flame can now proc from Incinerate in addition to Shadow Bolt.