anchor.diff:  
     tfFeature = x: if x then "1" else "0";
   
  -  version = "2.9.1";
  +  version = "2.10.0-rc0";
     variant = if cudaSupport then "-gpu" else "";
     pname = "tensorflow${variant}";
   
  
positive.code: { stdenv, bazel_4, buildBazelPackage, isPy3k, lib, fetchFromGitHub, symlinkJoin
  , addOpenGLRunpath, fetchpatch, patchelfUnstable
  # Python deps
  , buildPythonPackage, pythonOlder, python
  
negative.code:     stdenv = llvmPackages_11.stdenv;
    })) {
      name = "${pname}-${version}";
      bazel = bazel_5;
  
      src = fetchFromGitHub {
        owner = "tensorflow";
        repo = "tensorflow";
        rev = "v${version}";
        hash = "sha256-zN8I0wxKrxWcI0RuOqDz6srdW0Q+kgaZhJdXM46N1e8=";
      };
  
      # On update, it can be useful to steal the changes from gentoo
  