For those using ROMs or emulators like Citra, the update is usually handled as a separate file rather than being baked into the base game ROM.
: The update fixed an issue in Random Matchups where Pokémon nicknames were being displayed incorrectly, reverting them to their proper species names. How to Verify and Update pokemon omega ruby 14 3ds rom upd
The Player Search System (PSS) was the heart of online trading and battling in Gen 6. Version 1.4 fixed random disconnections during Wonder Trades and GTS negotiations. If you are playing on an emulator that supports local wireless (like Citra's Link Cable emulation), applying the 1.4 update ensures you do not desync with other players. For those using ROMs or emulators like Citra,