anchor.diff:  { stdenv, fetchFromGitHub, emacs, texinfo, gitModes, git, dash }:
   
   let
  -  version = "2.2.1";
  +  version = "2.3.0";
   in
   stdenv.mkDerivation {
     name = "magit-${version}";
  
positive.code:     owner = "magit";
      repo = "magit";
      rev = version;
      sha256 = "1bq26wrgm4wgif0hj16mkmiz0p1iilxs7dmdd1vq5df8nivmakjz";
    };
  
    buildInputs = [ emacs texinfo git ];
  
negative.code:     cp lisp/magit-version.el .
    '';
  
    doCheck = false;  # 2 out of 15 tests fails, not sure why
    checkTarget = "test";
    preCheck = "export EMAIL='Joe Doe <joe.doe@example.org>'";
  
    meta = {
      homepage = "https://github.com/magit/magit";
  