Pokémon X Version 1.5 Update is the definitive final patch for the game, primarily focused on refining the online experience and sealing exploits rather than adding new gameplay content
It seems you’re asking for a review of something called — likely a custom or modified version of Pokémon X for the Nintendo 3DS, distributed as a .cia file (installable format for modded 3DS consoles). pokemon x update 15 cia better
For those interested in installing the update, the process typically involves: Pokémon X Version 1
If you install on your Luma3DS console: