DNF Duel update 1.06 is out now for PS4, PS5, and PC. You can get the complete patch notes for the update here.
This update mostly revolves around various tweaks to the character balance and bug fixes to the game. Take a look at the changes in the patch notes for the update which is mentioned below, or have a look at the official website.
DNF Duel Update 1.06 Patch Notes
Character Balance and Bug Fixes