There is an issue with protobuf generation where protocol versions do not output into version folders. Generation script is genprotos.sh. Here is some example current behavior:

profile/v1/profile.proto outputs to profile/profile.pb.go
profile/v1/core.proto outputs to profile/core.pb.go
profile/v1/foundation.proto outputs to profile/foundation.pb.go

Here is some example expect

Do you have planning an update to slim4 core? Thank you