(which only received updates up to version 1.5 in 2015). It is possible you are referring to: Fan-made Projects or Mods:
Global trading remains locked until the software is patched. pokemon x update 13 world enjafrdeesitko exclusive
No mod is officially called “Update 13,” but several overhaul mods mimic the idea: (which only received updates up to version 1
Beyond stability, Version 1.3 addressed several distinct visual and functional glitches that had persisted since the game's launch: Pokémon X and Y received a critical update, Version 1
Search for "Update" in the Nintendo eShop on your 3DS and select the Pokémon X version 1.3 patch.
Pokémon X and Y received a critical update, Version 1.3 , on October 28, 2014. This update was a mandatory "World" release, encompassing all supported languages: English (En), Japanese (Ja), French (Fr), German (De), Spanish (Es), Italian (It), and Korean (Ko). Key Fixes and Features Pokémon X & Y - Patches & Updates - Serebii
You can also use the 3DS camera (L+R buttons on the Home menu) to scan official Nintendo QR codes that link directly to the update page.