The console will check for the latest version (currently 3.0.4) and begin the download automatically .

Unlike previous major updates (like version 3.0.0, which added the Booster Course Pass Wave 6 and a "Music" button), version 3.0.3 did not include any changes to graphics, sound, or game balance. How to Download

If you saw "3.0.3" mentioned somewhere, it may be a typo or refer to a different game (e.g., Mario Kart Tour or a mod). The official latest for Mario Kart 8 Deluxe remains (released November 2023).

The for Mario Kart 8 Deluxe was a minor patch released by Nintendo on September 11, 2024 , primarily focused on stability and fixing specific gameplay issues following the completion of the Booster Course Pass content. Patch Overview & Key Fixes