For those who care about this: I've updated the edid-decode utility to include the new CTA-861.4 and .5 standards. The .5 has been released a while ago, the .4 standard was released yesterday. Most of the changes relate to audio and speaker mappings (if you want to, you can now signal support for 22.2 speakers!), but for video the only new thing is support for the ICtCp colorspace. Regards, Hans