The "3.0.3" in the filename is a specific patch for Mario Kart 8 Deluxe. This update was released by Nintendo globally on .
In the context of the game's development, this update represents a late-stage maintenance patch. Mario Kart 8 Deluxe saw a massive resurgence in content between 2022 and late 2023 through the , which added 48 remastered tracks and 8 new characters like Kamek and Peachette. Mario-Kart-8-Deluxe-Atualizacao-3.0.3.NSP.rar