I believe they mentioned that it is basically HDMI 2.1 but some features weren’t supported maybe 4:2:2 color, I don’t remember. I think they also mentioned they are working on fixing it so they can call it HDMI 2.1 but they aren’t sure if they can so they are just calling it 2.0 right now to be safe.
I believe they mentioned that it is basically HDMI 2.1 but some features weren’t supported maybe 4:2:2 color, I don’t remember. I think they also mentioned they are working on fixing it so they can call it HDMI 2.1 but they aren’t sure if they can so they are just calling it 2.0 right now to be safe.