Mario Kart Tour Ceases New Content Distribution Starting October 4th, 2023

TL;DR
Nintendo has announced that new content updates for Mario Kart Tour will end on October 4th, 2023, with the introduction of the Battle Tour. After that, the game will only offer previously seen content. The Anniversary Tour will go live on September 20th, 2023, providing players with additional content before the end of new updates. Nintendo has not provided an explanation for this decision.
Want the full story? Read the original reporting
Read on GoNintendo