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WoW Patch 12.1 restores limited WeakAura-style AddOn functions via API buff/debuff access

World of Warcraft Patch 12.1 expands the AddOn API to let mods read debuffs on enemies and buffs on allies, allowing WeakAura-style custom alerts to return in a restricted form. The patch also adds a built-in cooldown tracker for potions and trinkets. This restores functionality removed by the earlier combat AddOn ban while preventing AddOns from fully automating boss mechanics.

• Patch 12.1 adds a cooldown tracker for potions and trinkets to the default UI.
• The AddOn API will permit reading of debuffs on enemy units and buffs on allied units.
• WeakAuras-style mods can be recreated under the new API but will be limited to allied-buff and enemy-debuff tracking only.
• The restriction prevents cross-unit buff/debuff reads, intended to stop AddOns from automating boss encounter mechanics while restoring some player-facing features.