: These are formats associated with Switch game distribution. NSP files are used for digital distributions of games on the Nintendo eShop, while XCI files are often used for game backups. The discussion or distribution of how to use these files for pirated copies is outside the scope of this response.
: Addressed minor "issues" to stabilize the general gameplay experience. Bug Fixes: Version 3.0.4 mario kart 8 deluxe switch nsp xci update 30 link
Small patches (like 3.0.1 through 3.0.3) focused on fixing specific bugs and improving the online experience. The Better Way to Play : These are formats associated with Switch game distribution
: Implemented anti-bagging measures that prevent players from obtaining strong items by driving in reverse or stopping at the same item box multiple times. Security and Maintenance: Version 3.0.3 : Addressed minor "issues" to stabilize the general
If you are looking for (the most recent patch), here is everything you need to know about the content, performance tweaks, and why this version is the definitive way to play. Mario Kart 8 Deluxe: The Ultimate Guide to Update 3.0+