anchor.diff:  
     goland = buildGoland rec {
       name = "goland-${version}";
  -    version = "2018.2.4"; /* updated by script */
  +    version = "2018.3"; /* updated by script */
       description = "Up and Coming Go IDE";
       license = stdenv.lib.licenses.unfree;
       src = fetchurl {
         url = "https://download.jetbrains.com/go/${name}.tar.gz";
  -      sha256 = "0aan23ggs314bvpsldsv9m4pdmnlgdcjac9x6hv1j145a1pp439i"; /* updated by script */
  +      sha256 = "0hd44flxqnnxg390mkf4ppjs2nxv0nwdc7a2i65f69bp5h61x783"; /* updated by script */
       };
       wmClass = "jetbrains-goland";
       update-channel = "GoLand Release";
  
positive.code: 
    idea-ultimate = buildIdea rec {
      name = "idea-ultimate-${version}";
      version = "2018.2.6"; /* updated by script */
      description = "Integrated Development Environment (IDE) by Jetbrains, requires paid license";
      license = stdenv.lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/idea/ideaIU-${version}-no-jdk.tar.gz";
        sha256 = "0x0ylcbj8spvzmwxrw3p4c64ad27iz58lwj4yb8a6vwh6p22gflk"; /* updated by script */
      };
      wmClass = "jetbrains-idea";
      update-channel = "IntelliJ IDEA Release";
  
negative.code: 
    pycharm-professional = buildPycharm rec {
      name = "pycharm-professional-${version}";
      version = "2018.3"; /* updated by script */
      description = "PyCharm Professional Edition";
      license = stdenv.lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/python/${name}.tar.gz";
        sha256 = "0q4scwnqy0h725g9z5hd145c3n10iaj04z790s4lixg1c63h3y8q"; /* updated by script */
      };
      wmClass = "jetbrains-pycharm";
      update-channel = "PyCharm Release";
  