The Splatoon 3 update that you've downloaded most recently sounds like a pretty massive one. Many of the game modes have seen tweaks both small and large.
Splatoon 3 update announced (version 6 0 0), patch notes nintendoeverything.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nintendoeverything.com Daily Mail and Mail on Sunday newspapers.