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HDMI 2.2 specs with increased bandwidth to be announced at CES 2025
(videocardz.com)
This is a most excellent place for technology news and articles.
Though that's not where you would use HDMI. I would argue for TV:s, 4k is generally enough, and HDMI 2.1 already has enough bandwidth for 4k 120 Hz 12 bit-per-color uncompressed.
But DisplayPort, yeah, that could use a bit more.