anchor.diff:  
     nerdtree = buildVimPluginFrom2Nix {
       pname = "nerdtree";
  -    version = "2020-08-18";
  +    version = "2020-10-14";
       src = fetchFromGitHub {
         owner = "preservim";
         repo = "nerdtree";
  -      rev = "577ddc73f0a1d2fd6166ed3268ab8536111037e0";
  -      sha256 = "0bccr18nr42vwbb4i765yxjw18piyiyd12sm4snbkkxahp9yswf7";
  +      rev = "14af89743ac1c31ff9bb43682025eda50333a7d5";
  +      sha256 = "1q50cc9z91v809s65w0zq2s0z5smvghy0fbdjn64mr894ndvrmcv";
       };
       meta.homepage = "https://github.com/preservim/nerdtree/";
     };
   
     nerdtree-git-plugin = buildVimPluginFrom2Nix {
       pname = "nerdtree-git-plugin";
  -    version = "2020-09-25";
  +    version = "2020-10-16";
       src = fetchFromGitHub {
         owner = "Xuyuanp";
         repo = "nerdtree-git-plugin";
  -      rev = "85c4bed898d2d755a2a2ffbfc2433084ce107cdd";
  -      sha256 = "1m8s5x30k875812fbznvbq3pch5jpy29jr5rpzr0pr2ni5wkv6a4";
  +      rev = "01b84c63b9ba48628285779fbdfd046dd2bc2970";
  +      sha256 = "1bmnm5my7r8ranafanwc33qksic444p47i23qsnkkphxk2hiq5q7";
       };
       meta.homepage = "https://github.com/Xuyuanp/nerdtree-git-plugin/";
     };
  
positive.code: 
    purescript-vim = buildVimPluginFrom2Nix {
      pname = "purescript-vim";
      version = "2018-12-10";
      src = fetchFromGitHub {
        owner = "purescript-contrib";
        repo = "purescript-vim";
        rev = "67ca4dc4a0291e5d8c8da48bffc0f3d2c9739e7f";
        sha256 = "1insh39hzbynr6qxb215qxhpifl5m8i5i0d09a3b6v679i7s11i8";
      };
      meta.homepage = "https://github.com/purescript-contrib/purescript-vim/";
    };
  
negative.code: 
    ultisnips = buildVimPluginFrom2Nix {
      pname = "ultisnips";
      version = "2020-10-21";
      src = fetchFromGitHub {
        owner = "SirVer";
        repo = "ultisnips";
        rev = "e6478871c04bb75f3c6cb9b90e171fffbf9c8ff3";
        sha256 = "17f1q0hv89l5mdiv3xrk1l3lnlxj6gbg8pnzcpx5dk4sd14xivd3";
      };
      meta.homepage = "https://github.com/SirVer/ultisnips/";
    };
  