In the meantime, we have received feedback from our supplier. The previously affected models now have the new chip. If you already have an older model at home, you can order an adapter directly from Danon: https://www.denon.com/de-de...
Denon introduced an expanded box some time ago. This now has 3 HDMI 2.1 inputs instead of 1. In Germany, you can get it at a greatly reduced price if you are affected by the HDMI incompatibility. Here in Switzerland you have to talk to the dealer.