There's vehicle combat, a major police overhaul, and a full redesign of the skill tree to make customisation options more interesting.
More than just a plethora of bug fixes, 2.0 goes in and completely overhauls major parts of the game. But CD Projekt RED kept at it, and this year released the major 2.0 update that has completely overhauled the game. Originally panned for both its egregious bugs and shallow systems, it seemed to be a costly miss from the studio responsible for The Witcher 3.
Three years after a disastrous release, Cyberpunk 2077 is finally an RPG worth recommending.