I just found this out and even though it has nothing todo with OpenHAB itself I think it might be useful for some as people use the MAX! system.
They stopped the development of the MAX! system and the cloud support will end 07.2023. I assume also software support will end.
Therefore there is a special promotion until end of the year where you can exchange your MAX! devices with Homematic IP devices. You get 50% discount on the equivalent Homematic IP devices.
Germany, Netherlands, Spain, Luxembourg, Belgium, France:
I hope this post does not break any forums rules, I am not affiliated with those companies and I do not get anything from posting this here, just thought it would be interesting for some. I use the MAX! system myself.