If another local Switch console has 3.0.3, you can select Match Version with Local Users in the software update menu.
(Wave 6), it ensures a safer environment for online matchmaking. Users who frequently play in Time Trials should note that subsequent updates, such as Ver. 3.0.4
You must have this update installed to use any online play features. If you plan to play via Local Wireless or LAN Play , all players must be on the same version (3.0.3 or later). Evolution Since Version 3.0.3