anchor.diff:  
   buildPythonPackage rec {
     pname = "dask";
  -  version = "2021.09.1";
  +  version = "2021.10.0";
     format = "setuptools";
   
     disabled = pythonOlder "3.7";
  
positive.code: , cloudpickle
  , distributed
  , fetchFromGitHub
  , fsspec
  , jinja2
  , numpy
  
negative.code:     owner = "dask";
      repo = pname;
      rev = version;
      sha256 = "07ysrs46x5w8rc2df0j06rsw58ahcysd6lwjk5riqpjlpwdfmg7p";
    };
  
    patches = [
      # remove with next bump
      (fetchpatch {
        name = "fix-tests-against-distributed-2021.10.0.patch";
        url = "https://github.com/dask/dask/commit/cd65507841448ad49001cf27564102e2fb964d0a.patch";
        includes = [ "dask/tests/test_distributed.py" ];
        sha256 = "1i4i4k1lzxcydq9l80jyifq21ny0j3i47rviq07ai488pvx1r2al";
      })
    ];
  
    propagatedBuildInputs = [
      cloudpickle
  