The patch that added PS4 Pro support to the game is unknown. Neither Sony nor 2K has announced thise new feature for the game, whoch seems a little odd. In the last patch in December 20, there were notes of bug fixing and other minor fixes.
– Game resolution is increased to 1440p with a 4K compatible output
– Resolution goes back to standard 1080p when not using a 4K output
– Improved shadow quality in dark game areas and spotlights
– Improved motion blur
– Frame rate drops to just bellow base PS4 but doesn’t tear due to the V-Sync