Black crush isn't 'fixed', they've just added an overlay that increases brightness in blacks when video is playing but that makes pure blacks appear greyish, if you don't understand, turn on 'Disable HW overlays' in developer options and see the difference. This isn't a long term solution, they still need to tweak levels that would minimize black crush at different brightness levels and refresh rates, or allow users to tweak those settings manually. I am still waiting for this to be fixed.
