Everything to Know About the Mario Kart 8 Deluxe Version 3.0.3 Update
Following 3.0.3, Nintendo has already moved forward with and 3.0.5 , which addressed specific bugs like the audio sync issues in "3DS Music Park" during Time Trials. Tips for "Top" Performance in 3.0.3
If you are looking to stay at the "top" of your game in the current version, remember that the balance changes from the 3.0.0 era still apply.