I wanted to start a quick discussion about updating protobuf in authzed-py. Google bumped it up a major version. Looking at the change log (corresponds to the v26 release) The breaking changes don't seem to affect the client. Do you want to support both v4 and v5 or make a clean upgrade? Note that we have to wait for grpcio-tools to be updated but the rc2 for that is out (so it should be soon) https://github.com/protocolbuffers/protobuf/releases