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VALIDATION.md

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+# TargetFrameBuff v0.9.2 validation
+
+17 simulated Lua 5.1 regression scenarios passed, plus XML parsing. These cover
+old/native clients, aura reordering, overflow, settings, sweep lifecycle, delta
+refreshes and full updates, target/pet/spellbook changes, reused delta payloads,
+no polling in delta mode, and native-number/flash suppression.
+
+ClassicAPI 1.17.10+ is detected through GetAuraDataByAuraInstanceID, introduced with
+UNIT_AURA_DELTA. Each relevant delta triggers a full display snapshot rather than
+retaining event tables or maintaining a second aura cache. This preserves sorted
+indices for icon/tooltip alignment. Older ClassicAPI polls every 0.5 seconds.
+Countdown text remains on its existing 0.2-second active-only updater.
+
+The native countdown is explicitly hidden per sweep; no global CVar is changed.
+New Clear and SetDrawBling methods are optional, preserving older versions.
+
+Not tested inside a running WoW client. Verify recasts, target switches, auras
+expiring, and sweeps with countdownForCooldowns enabled. Keep ShaguTweaks Debuff
+Timer disabled to prevent overlapping addon countdowns. No FPS gain is claimed.