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

Rogue changes

Assassination

Improved GougeMoved from CombatChangedTalent · Assassination
Remorseless AttacksAfter killing a non-trivial enemy, gives you a 40% increased critical strike chance on your next Sinister Strike,…ChangedTalent · Assassination
MaliceIncreases your critical strike chance with all attacks and Poisons by 5%.ChangedTalent · Assassination
MurderIncreases all damage dealt by 4% against Humanoid and Giant targets.ChangedTalent · Assassination
Improved Expose ArmorReduces the Energy cost of your Expose Armor ability by 10, and refunds 2 Combo Points when cast with 5 Combo Points.ChangedTalent · Assassination
LethalityMax rank ~~30%~~ to 20%ChangedTalent · Assassination
Vile PoisonsColumn 2 to 1MovedTalent · Assassination
Cold BloodRow 5 to 4ChangedTalent · Assassination
Improved PoisonsIncreases the chance to apply Poisons to your target by 10%, and gives Poison applications a 50% chance to not consume a…ChangedTalent · Assassination
VigorRow 7 to 5; Ranks 1 to 2ChangedTalent · Assassination
MutilateInstantly attacks with both weapons for 75% weapon damage plus an additional 17 with each weapon. Damage increased by…NewTalent · Assassination
Improved Kidney ShotRanks 3 to 2ChangedTalent · Assassination
Seal FateColumn 2 to 3; No longer needs Cold BloodChangedTalent · Assassination
VenomFinishing move that increases the damage of your Poisons by 30% and your chance to apply Poisons by 10%. Lasts longer…NewTalent · Assassination
EviscerateRank 6 99 to 93; ~~143 damage~~ to 137 damageChangedSpell · Assassination
Expose ArmorMax rank ~~340 armor~~ to 450 Armor; ~~680 armor~~ to 900 ArmorChangedSpell · Assassination
RuptureMax rank ~~272 damage~~ to 159 damage; ~~380 damage~~ to 222 damageChangedSpell · Assassination

Combat

Subtlety

Lockpicking

Pick LockAllows opening of locked chests and doors.ChangedSpell · Lockpicking

Poisons

Crippling PoisonCoats a weapon with poison that lasts for 30 minutes. Each strike has a 30% chance of poisoning the enemy, slowing their…ChangedSpell · Poisons
Instant Poison~~19 to 25~~ to 13 to 17; 40 to 60ChangedSpell · Poisons
PoisonsYou can create and mix poisons, with both found and storebought ingredients.ChangedSpell · Poisons
Mind-numbing Poison50 to 75ChangedSpell · Poisons
Instant Poison II~~30 to 38~~ to 20 to 26; 55 to 85; Ranks 1 to 2ChangedSpell · Poisons
Deadly Poison36 to 24; 60 to 90ChangedSpell · Poisons
Wound Poison55 to 67ChangedSpell · Poisons
Blinding PowderCreate the reagent for the Blind ability.ChangedSpell · Poisons
Instant Poison III~~44 to 56~~ to 29 to 37; 70 to 105; Ranks 1 to 3ChangedSpell · Poisons
Deadly Poison II52 to 36; 75 to 115; Ranks 1 to 2ChangedSpell · Poisons
Mind-numbing Poison II75 to 115; Ranks 1 to 2ChangedSpell · Poisons
Wound Poison II75 to 92; Ranks 1 to 2ChangedSpell · Poisons
Instant Poison IV~~67 to 85~~ to 45 to 57; 85 to 1800; Ranks 1 to 4ChangedSpell · Poisons
Deadly Poison III80 to 56; 90 to 135; Ranks 1 to 3ChangedSpell · Poisons
Wound Poison III~~105~~ to 128; Ranks 1 to 3ChangedSpell · Poisons
Crippling Poison IIRanks 1 to 2ChangedSpell · Poisons
Instant Poison V~~92 to 118~~ to 62 to 80; ~~100~~ to 150; Ranks 1 to 5ChangedSpell · Poisons
Mind-numbing Poison III~~100~~ to 150; Ranks 1 to 3ChangedSpell · Poisons
Deadly Poison IV~~108~~ to 72; ~~105~~ to 160; Ranks 1 to 4ChangedSpell · Poisons
Wound Poison IV~~135~~ to 165; Ranks 1 to 4ChangedSpell · Poisons
Wound Poison IV
Spell · PoisonsChanged
- 4 ranks (was 1)
Classic
Wound Poison IV
3 sec cast
Coats a weapon with poison that lasts for 30 minutes. Each strike has a 30% chance of poisoning the enemy, reducing all healing effects used on them by ~~135~~ for 15 sec.
Forever
Wound Poison IV
3 sec cast
Coats a weapon with poison that lasts for 30 minutes. Each strike has a 30% chance of poisoning the enemy, reducing all healing effects used on them by 165 for 15 sec. Stacks up to 5 times on a single target. 160 charges.
Deadly Poison V~~136~~ to 92; ~~105~~ to 180; Ranks 1 to 5ChangedSpell · Poisons
Instant Poison VI~~112 to 148~~ to 76 to 100; ~~115~~ to 175; Ranks 1 to 6ChangedSpell · Poisons

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