The second major update for Mario Kart Tour enabled the game to receive upcoming tours with the Battle mode and the Spotlight Shop.
Changelog:
Made preparations for Battles, a new way to play.*
Made preparations for the Spotlight Shop, where you'll be able to exchange rubies for drivers and more.*
The best score you've ever achieved on each course will now be recorded.
You can now play the next course directly from the race results screen.
*These are scheduled to be provided for future tours.