https://www.xboxachievements.com/new...n-October.html

The update will introduces several new features to the game, including the option to rematch bosses, take on boss gauntlets, perform player movement recordings, and don new outfits as the Wolf.
Via any Sculptor's Idol in the game, you'll be able to select 'Reflections of Strength', allowing you to to revisit any previously defeated boss.