anchor.diff:  { stdenv, fetchFromGitHub, qtbase, qtwebengine, qtwebkit, qmake, makeWrapper, minizinc }:
   let
  -  version = "2.4.2";
  +  version = "2.4.3";
   in
   stdenv.mkDerivation {
     pname = "minizinc-ide";
  
positive.code:     owner = "MiniZinc";
      repo = "MiniZincIDE";
      rev = version;
      sha256 = "1xqs27f14r79vcxf9bx72bbnhxc913lpr5d8cv31dacbq5fyxkw7";
    };
  
    sourceRoot = "source/MiniZincIDE";
  
negative.code:   '';
  
    meta = with stdenv.lib; {
      homepage = "https://www.minizinc.org/";
      description = "IDE for MiniZinc, a medium-level constraint modelling language";
  
      longDescription = ''
  