The Ring Group Management API guide now documents a dedicated endpoint for targeted membership changes. Instead of reading a ring group, mutating its full member list, and writing the whole object back with PUT, you can send only the members that are changing.
We have corrected the API versioning guidance for the Administration API Suite to make clear which header carries the version on which kind of request.
The Administration API Suite now has a dedicated changelog so you can track every change to the suite in one place, newest first. Whenever an API in the suite gains a new capability, changes behaviour, or has its documentation clarified, the change is recorded there.