More Python versions

Author: PeterJCLaw

.circleci/config.yml

@@ -34,7 +34,7 @@ references:
   version-matrix: &version-matrix
     matrix:
       parameters:
-        python-version: ["3.5.5", "3.6", "3.7"]
+        python-version: ["3.5.5", "3.6", "3.7", "3.8", "3.9", "3.10"]
         django-version: ["2.2", "3.0", "3.1", "3.2"]
       exclude:
         - python-version: "3.5.5"