Versions What’s the difference between github.com/golang/protobuf and google.golang.org/protobuf? The github.com/golang/protobuf module is the original Go protocol buffer API. The google.golang.org/protobuf module is an updated version of this API designed for simplicity, ease of use, and safety. The flagship features of the updated API are support for reflection and a separation of the user-facing API from the underlying implementation. We recommend that you use google.golang.org/protobuf ...