Diablo III‘s 20th anniversary update is now available on Xbox One, PlayStation 4, and PC.
The update introduces a new event that brings the original Diablo to Diablo III via a new dungeon that is 16 levels deep. The dungeon features the four main bosses from the first Diablo, the original music, and a new “Retrovision” graphics filter that makes the game look like the original and locks players to old-school eight-directional movement.
Update 2.4.3 also adds a 64-bit client as default for 64-bit Microsoft Windows operating systems that should improve system performance and loading times, and improves support for monitors over 60Hz.
Other changes include class and item balancing, bug fixes, a new enemy affix, and an improved dye system.
The full patch notes can be read here.