4K and HDR were added with the Episode Three update CROSSROADS ELEGY.
HDR lighting is compatible with Xbox One X, XBox One S, PS4 Pro, PS4.
High Resolution support is available in 4K on Xbox One X and 1440p on PS4 Pro. All versions of High Resolution support feature dynamic scaling.
HDR calibrations are available via Options from the Main Menu. Keep in mind that there is currently no standard implementation of HDR lighting so your results will depend heavily on the TV you are using.