https://wccftech.com/super-mario-maker-2-update-2-0/

A major Super Mario Maker 2 update will be released later this week worldwide, bringing new course elements, a new play mode and more.

The biggest addition of the 2.0 update launching on December 5th is the Master Sword power-up for the Super Mario Bros. style. The power-up turns Mario into Link, opening up a lot of interesting possibilities.