Classic vs Forever: every talent and spell change by class · stillsixty

Warlock changes

Affliction

Improved Life TapRow 2 to 1MovedTalent · Affliction
SuppressionMax rank ~~10%~~ to 20%ChangedTalent · Affliction
Improved CorruptionReduces the casting time of your Corruption spell by 2 sec and increases the damage it deals by 10%.ChangedTalent · Affliction
MaledictionIncreases all periodic damage done by your Warlock spells by 5%.NewTalent · Affliction
Soul HarvestKilling a non-trivial target afflicted by your Drain Soul increases your Mana regeneration by 100% for 10 sec and allows…NewTalent · Affliction
Improved DrainsIncreases health drained or damage done by your Drain Life, Drain Soul, and Wrack spells by 20%.NewTalent · Affliction
Improved Curse of WeaknessIncreases the effect of your Curse of Weakness by 20%.RemovedTalent · Affliction
Improved Drain SoulGives you a 100% chance to get a 100% increase to your Mana regeneration for 10 sec if the target is killed by you while…RemovedTalent · Affliction
Improved Bane of AgonyWas Improved Curse of Agony; Max rank 6% to 10%; Ranks 3 to 2ChangedTalent · Affliction
Fel ConcentrationRanks 5 to 3ChangedTalent · Affliction
Amplify CurseIncreases the effect of your next Curse of Weakness or Bane of Agony by 50%, or your next Curse of Exhaustion by 20%.…ChangedTalent · Affliction
PandemicIncreases the critical strike damage bonus of your Corruption, Bane of Agony, Bane of Doom, Drain Soul, Drain Life,…NewTalent · Affliction
MalevolenceIncreases the critical effect chance of your Shadow spells by 5%.NewTalent · Affliction
NightfallGives your Corruption, Drain Soul, Drain Life, and Wrack spells a 4% chance to cause you to enter a Shadow Trance after…ChangedTalent · Affliction
Curse of Exhaustion~~10%~~ to 30%; Row 5 to 4ChangedTalent · Affliction
Grim ReachIncreases the range of your Affliction spells by 20%.RemovedTalent · Affliction
Improved Drain ManaCauses 30% of the Mana drained by your Drain Mana spell to damage the opponent.RemovedTalent · Affliction
Siphon Life~~15 health~~ to 11 healthChangedTalent · Affliction
Soul SiphonWas Improved Drain Life; Row 2 to 5; Ranks 5 to 3ChangedTalent · Affliction
Improved Curse of ExhaustionIncreases the speed reduction of your Curse of Exhaustion by 20%.RemovedTalent · Affliction
Shadow MasteryMax rank ~~10%~~ to 5%; Column 2 to 3; No longer needs Siphon LifeChangedTalent · Affliction
WrackTears the target apart from within, inflicting 36 Shadow damage every 1 sec and increasing the damage they take from…NewTalent · Affliction
Dark PactDrains 150 of your pet's Mana, returning 100% to you.RemovedTalent · Affliction
Bane of AgonyWas Curse of Agony; Max rank ~~1044~~ to 552RenamedSpell · Affliction
Bane of DoomWas Curse of Doom; ~~3200~~ to 1742RenamedSpell · Affliction
Curse of the ElementsRanks 3 to 4Trained earlierSpell · Affliction
CorruptionMax rank ~~822~~ to 438ChangedSpell · Affliction
Curse of WeaknessMax rank 31 to 37ChangedSpell · Affliction
Life TapMax rank ~~424 health~~ to 848 HealthChangedSpell · Affliction
Drain SoulMax rank ~~455~~ to 420ChangedSpell · Affliction
Drain Soul
Spell · AfflictionChanged
Classic
Drain SoulRank 4/4
290 Mana30 yd range
Channeled
Drains the soul of the target, causing ~~455~~ Shadow damage over 15 sec. ~~If the target dies while being drained, and yields experience or honor, the caster gains~~ a Soul ~~Shard~~. Soul Shards are required for other spells.
Forever
Drain SoulRank 4/4
290 Mana30 yd range
Channeled
Drains the soul of the target, causing 420 Shadow damage over 15 sec. Non-trivial targets damaged by Drain Soul have a chance to grant you a Soul Shard. Non-trivial targets killed by Drain Soul will always grant you a Soul shard. Soul Shards are required for other spells.
During the beta
- October 1 update · Nerf
Curse of RecklessnessMax rank ~~640~~ to 505ChangedSpell · Affliction
Drain LifeMax rank ~~71 health~~ to 51 healthChangedSpell · Affliction
Drain ManaCost ~~none~~ to 95 Mana; Cast ~~Instant~~ to ChanneledChangedSpell · Affliction
Curse of TonguesForces the target to speak in Demonic, increasing the casting time of all spells by 60%. Only one Curse per Warlock can…ChangedSpell · Affliction
Death CoilMax rank ~~476~~ to 460; Cost ~~565 Mana~~ to 600 ManaChangedSpell · Affliction

Demonology

Destruction

Mounts

What changed during the beta, update by update, is in the patch notes. To try a build, use the talent calculator.