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

Mage changes

Arcane

Fire

Wake of FireWas Improved Fire Blast; Max rank ~~1.5 sec~~ to 2 sec; Row 2 to 1; Ranks 3 to 2ChangedTalent · Fire
IncinerationWas Incinerate; Max rank 4% to 6%; Row 3 to 1; Ranks 2 to 3ChangedTalent · Fire
Improved FireballColumn 2 to 3ChangedTalent · Fire
ImpactRow 1 to 2; Ranks 5 to 3ChangedTalent · Fire
Burning SoulColumn 4 to 1; Ranks 2 to 3ChangedTalent · Fire
Pyroblast~~148 to 195~~ to 101 to 131; 56 to 44ChangedTalent · Fire
Improved ScorchRank 2 ~~66%~~ to 67%ChangedTalent · Fire
Heating UpNon-periodic critical strikes with Fireball, Frostfire Bolt, Fire Blast, and Scorch reduce the cast time of your next…NewTalent · Fire
Master of ElementsYour Fire and Frost critical strikes will refund 30% of their base mana cost.ChangedTalent · Fire
Blast Wave~~160 to 192~~ to 154 to 184; No longer needs PyroblastChangedTalent · Fire
CombustionWhen activated, this spell causes each of your Fire damage spell hits to increase your critical strike chance with Fire…ChangedTalent · Fire
Frostfire BoltLaunches a bolt of frostfire at the enemy, causing 270 to 314 Frostfire damage, slowing movement speed by 40% and…NewSpell · Fire
FireballMax rank ~~596 to 760~~ to 425 to 541; 76 to 60ChangedSpell · Fire
Fire BlastMax rank ~~446 to 524~~ to 417 to 489ChangedSpell · Fire
FlamestrikeMax rank ~~381~~ to 382; ~~340~~ to 332ChangedSpell · Fire
Fire WardMax rank ~~920~~ to 913ChangedSpell · Fire
ScorchMax rank ~~237 to 280~~ to 167 to 196ChangedSpell · Fire

Frost

Frost WardingIncreases the Armor and resistance given by your Frost Armor and Ice Armor spells by 30%. In addition, gives your Frost…ChangedTalent · Frost
Elemental PrecisionMax rank 6% to 5%; Ranks 3 to 5ChangedTalent · Frost
PermafrostRank 1 4% to 3%; Column 4 to 2ChangedTalent · Frost
FrostbiteColumn 2 to 4MovedTalent · Frost
Frost ChannelingRow 4 to 3MovedTalent · Frost
Ice LanceDeals 28 to 32 Frost damage to an enemy target. Deals 300% increased damage to Frozen targets.NewTalent · Frost
Improved BlizzardAdds a Chill effect to your Blizzard spell. This effect lowers the target's movement speed by 40% for 1.5 sec.ChangedTalent · Frost
Ice BlockRow 5 to 4MovedTalent · Frost
Ice Block
Talent · FrostMovedOpen in the talent calculator
- Row 5 → 4
Classic
Ice Block
You become encased in a block of ice, protecting you from all physical attacks and spells for 10 sec, but during that time you cannot attack, move or cast spells.
Forever
Ice Block
You become encased in a block of ice, protecting you from all physical attacks and spells for 10 sec, but during that time you cannot attack, move, or cast spells.
ShatterColumn 3 to 4; No longer needs Improved Frost Nova; Ranks 5 to 3ChangedTalent · Frost
Improved Cone of ColdRank 2 ~~25%~~ to 23%; Column 3 to 1ChangedTalent · Frost
Cold SnapRow 3 to 5ChangedTalent · Frost
Fingers of FrostGives your Chill effects a 15% chance to grant you the Fingers of Frost effect, which treats your next 2 spells cast as…NewTalent · Frost
Winter's ChillRank 4 5 to 4ChangedTalent · Frost
Ice Barrier~~455 damage~~ to 448 damage; Needs Cold SnapChangedTalent · Frost
FrostboltMax rank ~~515 to 555~~ to 457 to 493ChangedSpell · Frost
Frost NovaMax rank ~~73 to 82~~ to 72 to 79ChangedSpell · Frost
BlizzardMax rank ~~1192~~ to 1168ChangedSpell · Frost
Frost WardMax rank ~~920~~ to 913ChangedSpell · Frost
Cone of ColdMax rank ~~338 to 368~~ to 328 to 358; ~~50%~~ to 40%ChangedSpell · Frost

Comprehension

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