Beyond the new content, version 2.1.0 implemented several gameplay tweaks and bug fixes to improve the experience:
Mario Kart 8 Deluxe Update History | Nintendo Switch | Support
Further shortened the regeneration time for item boxes after they are collected by a player. Mario Kart 8 Deluxe Switch NSP [AtualizaГ§ГЈo 2.1...
Improved mid-air control when using Smart Steering to make it easier to face the path forward.
Fixed an issue where DLC courses could not be selected even if a friend in the lobby owned the pass. Beyond the new content, version 2
Update 2.1.0 for on the Nintendo Switch was released on August 4, 2022 . This update primarily added support for Wave 2 of the Booster Course Pass DLC, introducing eight new tracks and two additional cups. New Tracks and Cups (Wave 2)
Reduced the time it takes for a player to pick up a coin dropped by another racer. Update 2
The maximum number of downloadable ghosts increased from 16 to 32 .