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Classic vs Forever
Every talent and spell WoW Forever added, changed or removed, with the Classic tooltip next to the new one.
Paladin changes
Holy
Healing LightRow 3to 2ChangedTalent · Holy
Spiritual FocusRanks 5to 2ChangedTalent · Holy
Improved SealsWas Improved Seal of Righteousness; Ranks 5to 3ChangedTalent · Holy
Unyielding FaithRow 3to 2ChangedTalent · Holy
Voice of TruthGrants you immunity to Silence and Interrupt effects for 6 sec.NewTalent · Holy
ReverenceAllows 30% of your Mana regeneration to continue while casting.NewTalent · Holy
Purifying PowerReduces the mana cost of your Cleanse and Purify spells by 20% and reduces the cooldown of your Exorcism and Holy Wrath…NewTalent · Holy
ConsecrationNow trained at level 20, no talent pointRemovedTalent · Holy
Improved Lay on HandsGives the target of your Lay on Hands spell a 30% bonus to their armor value from items for 2 min. In addition, the…RemovedTalent · Holy
Infusion of LightYour Holy Shock and Flash of Light critical hits reduce the cast time of your next Holy Light cast within 15 sec by 1.0…NewTalent · Holy
IlluminationNow needs ReverenceChangedTalent · Holy
Divine FavorRow 5to 4; No longer needs IlluminationChangedTalent · Holy
Improved Blessing of WisdomIncreases the effect of your Blessing of Wisdom spell by 20%.RemovedTalent · Holy
Divine PrecisionImproves your chance to hit with Holy spells by 18%.NewTalent · Holy
Holy Shock204 to 220to 129 to 139;204 to 220to 110 to 118; Row7to 5; No longer needs Divine FavorChangedTalent · Holy- Consecrated GroundGives your Holy spells 10% increased damage against the first 4 enemies that enter your Consecration.NewTalent · Holy
Lasting JudgementIncreases the duration of your Judgement of Light and Judgement of Wisdom by 30 sec.RemovedTalent · Holy
Holy PowerIncreases the critical strike chance of your Holy Shock and Holy Strike spells by 15%, and all other spells by 5%.ChangedTalent · Holy
Light's VigilApplies Light's Vigil to the target for 30 sec. Your next Holy Shock cast on them triggers no cooldown and causes enemy…NewTalent · Holy- ConsecrationMax rank
384to 96; No talent point neededNo longer a talentSpell · Holy - Holy LightMax rank
1590 to 1770to 1495 to 1665ChangedSpell · Holy - Seal of RighteousnessMax rank
187to 186ChangedSpell · Holy - Lay on HandsCooldown
1 hrto 20 minChangedSpell · Holy - Blessing of WisdomMax rank
33to 40ChangedSpell · Holy 
ExorcismMax rank 505 to 563to 475 to 529ChangedSpell · Holy
Flash of LightMax rank 348 to 389to 292 to 325ChangedSpell · Holy- Seal of LightMax rank
10 secto 40 secChangedSpell · Holy 
Seal of WisdomMax rank 10 secto 40 secChangedSpell · Holy
Blessing of LightPlaces a Blessing on the friendly target, increasing the effects of Holy Light spells used on the target by up to 400…ChangedSpell · Holy
Hammer of WrathMax rank 504 to 556to 474 to 522ChangedSpell · Holy
Holy WrathRank 1 435to 434ChangedSpell · Holy
Greater Blessing of WisdomMax rank 33to 40ChangedSpell · Holy
Greater Blessing of LightGives all members of the raid or group that share the same class with the target the Greater Blessing of Light,…ChangedSpell · Holy
Protection
ToughnessRow 2to 1MovedTalent · Protection
RedoubtDamaging melee attacks against you have a 10% chance to increase your chance to block by 20%. Lasts 10 sec or 5 blocks.ChangedTalent · Protection
Improved Devotion AuraIncreases the armor bonus of your Devotion Aura by 25%.RemovedTalent · Protection
PrecisionImproves your chance to hit by 3%.ChangedTalent · Protection
Guardian's FavorReduces the cooldown of your Blessing of Protection by 2 min and increases the duration of your Blessing of Freedom by 6…ChangedTalent · Protection
AnticipationMax rank 10to 20; Row3to 2ChangedTalent · Protection- Improved Seal of FuryWhen Seal of Fury's shield is fully absorbed, restore 0 Mana, increased by 15% per level the attacker is above you, up…NewTalent · Protection
Improved Righteous FuryMax rank 50%to 6%ChangedTalent · Protection
Shield SpecializationIncreases the amount of damage absorbed by your shield by 30%, and gives your blocks a 100% chance to restore 6% of your…ChangedTalent · Protection
Sacred DutyIncreases your total Stamina by 4% and reduces the cooldown of your Divine Shield, Divine Protection, and Templar's…NewTalent · Protection
Blessing of KingsNow trained at level 20, no talent pointRemovedTalent · Protection
Swift JudgementFinishes the remaining cooldown on your Judgement ability and reduces the Mana cost of your next Judgement by 100%.NewTalent · Protection
One-Handed Weapon SpecializationRow 6to 4; Ranks5to 3ChangedTalent · Protection
Improved Hammer of JusticeColumn 2to 3MovedTalent · Protection
Improved Concentration AuraIncreases the effect of your Concentration Aura by an additional 15% and gives all group members affected by the aura an…RemovedTalent · Protection
Templar's BulwarkWhen activated, this ability grants you an absorb shield equal to 100% of your maximum health for 8 sec. Applies…NewTalent · Protection
ReckoningGives you a 40% chance to gain an extra attack after Blocking a melee attack and a 100% chance to gain an extra attack…ChangedTalent · Protection
Blessing of SanctuaryPlaces a Blessing on the friendly target, reducing damage dealt from all sources by up to 10 for 5 min. In addition,…RemovedTalent · Protection
Iron CreedIncreases the threat generated by your Holy Strike ability by 25%. While Righteous Fury is active, Holy Strike also…NewTalent · Protection
Holy Shield65to 110; Needs Templar's BulwarkChangedTalent · Protection
Seal of FuryFills the Paladin with divine fury for 30 sec, causing melee attacks to deal an additional 35 Holy damage. While a…NewSpell · Protection
Hammer of the RighteousHammer the current target and up to 3 additional nearby targets, causing Holy damage to each equal to 3 times the damage…NewSpell · Protection- Blessing of KingsNo talent point neededNo longer a talentSpell · Protection
Divine ProtectionYou are protected from all physical attacks and spells for 8 sec, but during that time you cannot attack or use physical…ChangedSpell · Protection- Blessing of ProtectionA targeted party member is protected from all physical attacks for 10 sec, but during that time they cannot attack or…ChangedSpell · Protection
Blessing of SalvationPlaces a Blessing on the party member, reducing the amount of all threat generated by 30% for 1 hr. Players may only…ChangedSpell · Protection
Shadow Resistance AuraGives 60 additional Shadow resistance to all party and raid members within 30 yards. Players may only have one Aura on…ChangedSpell · Protection
Frost Resistance AuraGives 60 additional Frost resistance to all party and raid members within 30 yards. Players may only have one Aura on…ChangedSpell · Protection- Divine ShieldMax rank
100%to 50%ChangedSpell · Protection 
Fire Resistance AuraGives 60 additional Fire resistance to all party and raid members within 30 yards. Players may only have one Aura on…ChangedSpell · Protection
Greater Blessing of KingsGives all members of the raid or group that share the same class with the target the Greater Blessing of Kings,…ChangedSpell · Protection
Greater Blessing of SalvationGives all members of the raid or group that share the same class with the target the Greater Blessing of Salvation,…ChangedSpell · Protection
Retribution
DeflectionRow 2to 1MovedTalent · Retribution
BenedictionMax rank 15%to 10%ChangedTalent · Retribution
Improved Blessing of MightIncreases the melee attack power bonus of your Blessing of Might by 20%.RemovedTalent · Retribution
Improved JudgementDecreases the cooldown of your Judgement ability by 2 sec.ChangedTalent · Retribution
Holy ConduitReduces the mana cost of your Consecration, Holy Wrath, Exorcism, and Hammer of Wrath spells by 40%.NewTalent · Retribution- ConvictionRow
3to 2ChangedTalent · Retribution 
Improved Seal of the CrusaderIncreases the melee attack power bonus of your Seal of the Crusader and the Holy damage increase of your Judgement of…RemovedTalent · Retribution
VindicationGives your damaging melee attacks a chance to reduce the target's Attack Power by 200, and increase your Attack Power by…ChangedTalent · Retribution
Sanctified JudgementGives your Judgement ability a 100% chance to return 60% of the Mana cost of the judged seal.NewTalent · Retribution
Seal of Command68.5to 69;137to 138ChangedTalent · Retribution
Pursuit of JusticeMax rank 8%to 15%ChangedTalent · Retribution
Eye for an EyeMax rank 30%to 10%ChangedTalent · Retribution
Sacred ArbiterIncreases the damage of your Holy Strike ability by 20% and causes it to refresh all Judgement effects on the target.NewTalent · Retribution
Improved Retribution AuraIncreases the damage done by your Retribution Aura by 50%.RemovedTalent · Retribution
VengeanceMax rank 8 secto 30 sec; Row6to 5; Needs Sanctified Judgement; Ranks5to 3ChangedTalent · Retribution
RepentanceRow 7to 5MovedTalent · Retribution
Sanctity AuraIncreases Holy damage done by party members within 30 yards by 10%. Players may only have one Aura on them per Paladin…RemovedTalent · Retribution
Champion of the LightIncreases your spell damage by up to 60% of your Intellect.NewTalent · Retribution
Instrument of LawReduces the cast time of your Hammer of Wrath by 1.0 sec, and reduces all threat you generate by 20% while Righteous…NewTalent · Retribution
Twist of LightReduces the Mana cost of your Seal spells by 20%, and when you replace your Seal of Command, Seal of Righteousness, Seal…NewTalent · Retribution
Holy StrikeAn instant strike that causes 50% weapon damage plus an additional 81 to 105 as Holy damage. Requires Melee WeaponNewSpell · Retribution- Blessing of MightMax rank
185to 133ChangedSpell · Retribution - JudgementUnleash the energy of a Seal spell upon an enemy. Does not consume the Seal. Refer to individual Seals for Judgement…ChangedSpell · Retribution
- Seal of the CrusaderMax rank
326to 325;10 secto 40 secChangedSpell · Retribution 
Greater Blessing of MightMax rank 185to 133ChangedSpell · Retribution
Mounts
What changed during the beta, update by update, is in the patch notes. To try a build, use the talent calculator.