HI Frank,
Thank you for the question!
The Grasshopper - Archicad Live Connection made for AC23, although stated for 4006, should work perfectly fine with newer build of Archicad 23. I am using it with build 5005 without any compatibility issue.
In short, the latest version of the addon should be compatible with Archicad 23 5005.
Please let me know if you have any further questions. Thank you very much!
Best regards,
Minh
Minh Nguyen
Technical Support Engineer
GRAPHISOFT