: Added the final wave of the Booster Course Pass, including 8 courses, 4 characters (Funky Kong, Diddy Kong, Pauline, Peachette), and 17 Mii suits.
Resolved issues with ghost data uploads on the 3DS Music Park track and character animation glitches from the Booster Course Pass. How to Verify Your NSP Update
The safest and most reliable way to update the game is through official channels:
By following this guide, you can enjoy every last cup of the 96-track Mario Kart 8 Deluxe experience—safely, stably, and with absolute confidence in your update’s integrity.
How to Update Mario Kart 8 Deluxe | Nintendo Switch | Support
As of the latest content release, the definitive version number for Mario Kart 8 Deluxe is (sometimes labeled as v196608 in scene tools).