Dataminers discovered that the primary purpose of version 3.0.3 was to patch a security flaw in the game's netcode . Specifically, it addressed a buffer overflow vulnerability, requiring only minor modifications to the game's code.
Version 3.0.3 is a minor maintenance patch following the major content additions of Version 3.0.0, which finalized the . Mario Kart 8 Deluxe Switch NSP XCI -Update 3.0....
Based on your request, it seems you are looking for information or a summary regarding the update version 3.0.x (typically found as .NSP or .XCI files for use with custom firmware or emulators). Dataminers discovered that the primary purpose of version 3