Let’s cut to the chase. If you typed "Pokémon Ultra Sun v12 CIA" into Google, you aren’t looking for a review of the official 3DS title. You already know Alola like the back of your hand. You’ve battled Lusamine, you’ve surfed on Mantine, and you’ve been mildly annoyed by Rotom Dex approximately 4,000 times.
To understand the confusion, we first have to look at the official history of the game. Nintendo and Game Freak released Pokémon Ultra Sun and Ultra Moon globally on November 17, 2017. The official version history for the title is remarkably short. There was the base game (v0), and subsequently, an official patch (often labeled v1.1 or v1.2 in file metadata) released shortly after launch to fix game-breaking bugs and add minor features. pokemon ultra sun v12 cia exclusive