. This specific version, released by Nintendo in , is primarily a technical and security maintenance patch. Key Features of Version 3.0.3
The text "proper piece" in the context of the filename refers to a technical mechanism in BitTorrent and peer-to-peer (P2P) file sharing . Definition in File Sharing Mario-Kart-8-Deluxe-Atualizacao-3.0.3.NSP.rar
: Improved the reliability of online matchmaking and race connectivity. . This specific version