PERF-VOL + PERF-ORDER, and AUDIT PERF-ARENA: lamp-shadow answers kept, cheapest skip first, one index buffer for every arena

PERF-VOL + PERF-ORDER, and AUDIT PERF-ARENA: lamp-shadow answers kept, cheapest skip first, one index buffer for every arena is an entry in the Game updates database, listed under 2026-10.

From the game's own history. A title is the update's own; a codex page is listed when it cites a file the update changed, which means its numbers or rules may have moved. Where a page says it was checked on a date, only later updates are held against it.