anchor.diff:  
     denite-nvim = buildVimPluginFrom2Nix {
       pname = "denite-nvim";
  -    version = "2021-02-17";
  +    version = "2021-02-20";
       src = fetchFromGitHub {
         owner = "Shougo";
         repo = "denite.nvim";
  -      rev = "972ba554fea50378b34a6711f6d0a0e2904c6a0b";
  -      sha256 = "0rmknirs5a0rkcpprd7wrf5fq85590aj5wdnrmr5vp59wg8677gm";
  +      rev = "2b5360f3f2965ee5a6f82e09648d0c18e78142f3";
  +      sha256 = "09bya9rqzk809s5i1xda94f64jnzm3vkh8kiziclgyg42sv6in9b";
       };
       meta.homepage = "https://github.com/Shougo/denite.nvim/";
     };
   
     deol-nvim = buildVimPluginFrom2Nix {
       pname = "deol-nvim";
  -    version = "2021-02-09";
  +    version = "2021-02-22";
       src = fetchFromGitHub {
         owner = "Shougo";
         repo = "deol.nvim";
  -      rev = "907cf91cc491348bf383f3eb447c1be2a9330cb4";
  -      sha256 = "1xsri4chlzfr0zc93wl96fpy381maygc3dlvy58nz2yswdr0g103";
  +      rev = "d66c706c9788aa47399485a3ec29a2a76711a188";
  +      sha256 = "09bj5442xln6a98ncnq1lxkyrl8c973p9sfd02zl1a3f16sms415";
       };
       meta.homepage = "https://github.com/Shougo/deol.nvim/";
     };
  
positive.code: 
    zephyr-nvim = buildVimPluginFrom2Nix {
      pname = "zephyr-nvim";
      version = "2021-02-08";
      src = fetchFromGitHub {
        owner = "glepnir";
        repo = "zephyr-nvim";
        rev = "e3646fc3124e33da4909e30caaad1167523e0c53";
        sha256 = "0a200497js325343prx638rkzg6544lxrrr3ij5g0i6dvazzwg21";
      };
      meta.homepage = "https://github.com/glepnir/zephyr-nvim/";
    };
  
    zig-vim = buildVimPluginFrom2Nix {
      pname = "zig-vim";
      version = "2021-01-19";
      src = fetchFromGitHub {
        owner = "ziglang";
        repo = "zig.vim";
        rev = "17170fd1c31f00132a91fb1598d0f3df5927e28d";
        sha256 = "0k8s5via1frpgdb94kgsk29g7h6fjq3cazyfa8zww7vra418acsh";
      };
      meta.homepage = "https://github.com/ziglang/zig.vim/";
    };
  
negative.code: 
    vim-clap = buildVimPluginFrom2Nix {
      pname = "vim-clap";
      version = "2021-02-19";
      src = fetchFromGitHub {
        owner = "liuchengxu";
        repo = "vim-clap";
        rev = "b6d82bc748a80577a31f2a40eb36947d70197a67";
        sha256 = "0w7yhqzdiknqm2y2cyx04sqmyr0sixfk1lrxbmra01d4sv4p7lis";
      };
      meta.homepage = "https://github.com/liuchengxu/vim-clap/";
    };
  