This protobuf compiler plugin is from github.com/golang/protobuf module, which is deprecated.

v1.5.x implements Go APIv2 for protocol buffers.

For APIv2, see https://go.dev/blog/protobuf-apiv2.

People should migrate to protoc-gen-go package which is provided by google.golang.org/protobuf module.

Go files generated by this version will cause runtime panic with golang-github-gogo-protobuf-dev.