The Pokémon Ultra Sun (and Ultra Moon) , released in February 2018, was a critical patch primarily focused on fixing game-breaking bugs that affected competitive play. It is required for all online functionality, including the Festival Plaza and Battle Spot. Key Fixes and Changes
Be aware that updating to v1.2 renders any Battle Videos saved in previous versions (v1.0 or v1.1) unplayable. Installation for 3DS & CIA Users pokemon ultra sun update 12 3ds world cia
files, the "World" or region-free update ensures compatibility regardless of your base game's origin, though matching regions is typically recommended to avoid "update notice" errors. PocketMonsters.net Key Patch Notes (v1.2) The Pokémon Ultra Sun (and Ultra Moon) ,
