Classic 1.13.2 is based on Patch 8.1.0 and reintroduced Vanilla API. The BlizzCon 2018 playable demo (1.13.0) was based on 7.3.5 API.
See also:
Live 7.3.5 (26972) to Classic 1.13 (28211) , 1.13.2 (30406) , (undocumented: 30550 , 30682 , 30786 , 31043 , 31209 , 31402 , 31446 , 31650 ) Changes [ ] The TOC version is 11302
The focus UnitId was removed.
Quest and Spell hyperlinks can't be linked to chat channels and show up as plain text. Even when pasting them manually the server won't allow them to be posted.
The Combat Log is restricted to events within 50 yards of the player. (Build 32600, Nov 20 2019) [1] API [ ] Cast Bars [ ] CVars [ ] CVar nameplateMaxDistance is effectively locked to 20 yards after the unlimited distance with scientific notation bug.
CVar chatClassColorOverride defaults to 1 (never color by class name) instead of 0 (always color by class name).
The default UI scale on classic is 0.9 up from 0.64 in retail, see CVar minimumAutomaticUiScale . Spells [ ] The Combat Log no longer has access to Spell IDs, they are always returned as 0, since they were only added to the combat log in patch 2.4
UNIT_SPELLCAST_* events only fire for the player.Global API [ ] See also: World of Warcraft API#Classic Specific Functions
Global API 8.1.5 (29981) → 1.13.2 (30406)
121 new functions
2008 removed functions
Widgets [ ]
Widget API 8.1.5 (29981) → 1.13.2 (30406)
4 new methods
62 removed methods, 6 widgets
ArchaeologyDigSiteFrame FogOfWarFrame ItemButton MovieFrame QuestPOIFrame ScenarioPOIFrame GameTooltip:GetSlotTransmogSources GameTooltip:GetUseTransmogSkin GameTooltip:SetUseTransmogSkin GameTooltip:SetAchievementByID GameTooltip:SetArtifactItem GameTooltip:SetArtifactPowerByID GameTooltip:SetBackpackToken GameTooltip:SetCompanionPet GameTooltip:SetCurrencyByID GameTooltip:SetCurrencyToken GameTooltip:SetCurrencyTokenByID GameTooltip:SetEquipmentSet GameTooltip:SetExistingSocketGem GameTooltip:SetGuildBankItem GameTooltip:SetHeirloomByItemID GameTooltip:SetLFGDungeonReward GameTooltip:SetLFGDungeonShortageReward GameTooltip:SetLootCurrency GameTooltip:SetMountBySpellID GameTooltip:SetOwnedItemByID GameTooltip:SetPvpBrawl GameTooltip:SetPvpTalent GameTooltip:SetQuestCurrency GameTooltip:SetQuestLogCurrency GameTooltip:SetQuestLogSpecialItem GameTooltip:SetRecipeRankInfo GameTooltip:SetRecipeReagentItem GameTooltip:SetRecipeResultItem GameTooltip:SetSocketGem GameTooltip:SetSocketedItem GameTooltip:SetSocketedRelic GameTooltip:SetTotem GameTooltip:SetToyByItemID GameTooltip:SetTransmogrifyItem GameTooltip:SetUpgradeItem GameTooltip:SetVoidDepositItem GameTooltip:SetVoidItem GameTooltip:SetVoidWithdrawalItem Minimap:SetArchBlobInsideAlpha Minimap:SetArchBlobInsideTexture Minimap:SetArchBlobOutsideAlpha Minimap:SetArchBlobOutsideTexture Minimap:SetArchBlobRingAlpha Minimap:SetArchBlobRingScalar Minimap:SetArchBlobRingTexture Minimap:SetQuestBlobInsideAlpha Minimap:SetQuestBlobInsideTexture Minimap:SetQuestBlobOutsideAlpha Minimap:SetQuestBlobOutsideSelectedTexture Minimap:SetQuestBlobOutsideTexture Minimap:SetQuestBlobRingAlpha Minimap:SetQuestBlobRingScalar Minimap:SetQuestBlobRingTexture Minimap:SetTaskBlobInsideAlpha Minimap:SetTaskBlobInsideTexture Minimap:SetTaskBlobOutsideAlpha Minimap:SetTaskBlobOutsideSelectedTexture Minimap:SetTaskBlobOutsideTexture Minimap:SetTaskBlobRingAlpha Minimap:SetTaskBlobRingScalar Minimap:SetTaskBlobRingTexture Region:GetScaledRect
Events [ ] See also: Events/Classic
Events 8.1.5 (29981) → 1.13.2 (30406)
8 new events
449 removed events
CVars [ ] See also: Console variables/Complete list/Classic
CVars 8.1.5 (29981) → 1.13.2 (30406)
30 new CVars
70 removed CVars
alwaysShowBlizzardGroupsTab alwaysShowTargetNameplate clampTargetNameplateToScreen enableRefHistory floatingCombatTextAuraFade groundEffectAnimation gxFixLag gxTripleBuffer hideOutdoorWorldState instantQuestText minimumAutomaticUiScale nameplateNotSelectedAlpha nameplateRemovalAnimation RAIDgroundEffectAnimation RAIDSSAOBlur showLoadingScreenTips showLootSpam showNewbieTips spellClutterDefaultTargetScalar spellClutterHostileScalar spellClutterMinSpellCount spellClutterMinWeaponTrailCount spellClutterPartySizeScalar spellClutterPlayerScalarMultiplier spellClutterRangeConstant spellClutterRangeConstantRaid SSAOBlur SSAODistance terrainHoles twitterCharactersPerMedia
advJournalLastOpened autoAcceptQuickJoinRequests autoDismount autoDismountFlying autoStand autoUnshift BehaviorTree BrowserNavigateLog displaySpellActivationOverlays floatingCombatTextCombatHealing floatingCombatTextCombatHealingAbsorbSelf floatingCombatTextCombatHealingAbsorbTarget graphicsOutlineMode graphicsViewDistance GxAllowSoftwareRenderer GxLogFullGPUInfo gxMTAlphaM2 gxMTBeginDraw gxMTDisable gxMTOpaque gxMTPrepass gxMTShadow hdPlayerModels HealHandler hideAdventureJournalAlerts lossOfControl lossOfControlDisarm lossOfControlFull lossOfControlInterrupt lossOfControlRoot lossOfControlSilence miniWorldMap nameplateResourceOnTarget nameplateShowSelf newMythicPlusSeason newPvpSeason Outline OutlineEngineMode Pathing physicsLevel PraiseTheSun questPOI raidFramesDisplayAggroHighlight raidGraphicsOutlineMode raidGraphicsViewDistance RAIDOutlineEngineMode seenAlliedRaceUnlocks ShowNamePlateLoseAggroFlash showNPETutorials showQuestTrackingTooltips ShowQuestUnitCircles Sound_EnableDSPEffects Sound_EnablePetBattleMusic SpawnRegion spellActivationOverlayOpacity SpellOverrides SpellTargeting splashScreenSeason threatPlaySounds threatShowNumeric threatWarning threatWorldText UnitNameFriendlySpecialNPCName UnitNameHostleNPC UnitNameInteractiveNPC videoOptionsVersionDefault worldEntityLinkMode worldPreloadNonCriticalTimeout worldQuestFilterReputation worldViewCullMaxJobs
References [ ] 
