I couldn't find anything related to how to make it work for RH7. The "fix" for RH 7 WIP i already tried and it does not do the trick. If you have a particular post in mind, i would appreciate if you could point it out.
We are working on adding Rhino 7 support for the Grasshopper-Archicad Live Connection, and expect to release an updated add-on later this year.
Thank you for your feedbck, I just downloaded the latest release with Archicad 25, and was disheartened to see it still doesn't work, meaning I still have to keep Rhino 6 around just for the sake of connection... and keep sometimes working on Rhino 7 and going into Rhino 6 just to use the connection. I hope it will be operational soon.
Architect & Urbanist // Brazil
Dell i7 (i7-9750H) 32Gb Ram, GeForce 1660 (6Gb) - Windows 10