You never see an NSP or UPD file. The console handles everything.
Update 100% Integrated.
The latest official update for on the Nintendo Switch is Version 3.0.5 , released on May 21, 2025. This update follows the completion of the Booster Course Pass content and focuses primarily on stability and minor bug fixes. Latest Update Highlights (Ver. 3.0.5) switch nsp mario kart 8 deluxe upd