All Specs : 

     Now all warlock spell cost no more   Soul Shard

Demonology : 

 

     New : Demonic Strenght : 
     When you are in metamorphosis you have 5% chance when casting a shadow bolt to cast another one. In addition your immolation aura will randomly cast a shadowbolt on nearby ennemy.

     Metamorphosis : 
     old: Cooldown 3min
     new: Cooldown 1min30

     New : Master : hellfire : 
     Hellfire no longer inflict you damage.

     New : Master : Seed of Corruption :  
     Your Seed of Corruption will now spread up to 3 target close to your main target. 

Destruction :

     New : Master : Immolate : 
     Now spreads to all targets within 8 yards.