https://wccftech.com/pokemon-legends-arceus-update-1-0-1/

Ahead of the game’s global launch tomorrow, Nintendo and Game Freak have released Pokémon Legends Arceus update 1.0.1.

As with most Nintendo Switch game updates, this update appears to be a minor one as the official release notes only mention fixes for some issues. Exact details weren’t shared, but according to Nintendo and the developer, this day-one update for Arceus aims to give players a better gaming experience. For the sake of completeness, we’ve included the release notes down below: