anchor.diff:  
   buildGoPackage rec {
     name = "kops-${version}";
  -  version = "1.6.2";
  +  version = "1.7.1";
   
     goPackagePath = "k8s.io/kops";
   
  
positive.code:     rev = version;
      owner = "kubernetes";
      repo = "kops";
      sha256 = "0bxknjhzj9xiws6sjw9knwqma3fjh496vnm90skl766bk4pafq9l";
    };
  
    buildInputs = [go-bindata];
  
negative.code:     description = "Easiest way to get a production Kubernetes up and running";
      homepage = https://github.com/kubernetes/kops;
      license = licenses.asl20;
      maintainers = with maintainers; [offline zimbatm];
      platforms = platforms.unix;
    };
  }
  