The [WORLD 4] tag is in the official title
Roblox now lists the experience as "[WORLD 4] +1 Mog Evolution" - confirmed through the Roblox Games API on October 11, 2026; the official page URL slug carries the same WORLD-4 marker. The title carried [W3] from the September 26 update through our October 2 check, so the World 4 label arrived in the October 3-10 window. It was replaced by a generic [UPDATE] tag at the October 17, 2026 bump (checked October 18, 2026), the tag itself was removed at the October 25, 2026 bump, and the title still reads plain "+1 Mog Evolution" after the November 1, 2026 bump (checked November 3, 2026).