diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 755bc27..8a8e8d4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,6 +1,10 @@
 name: Test
 
-on: [push, pull_request]
+on:
+  pull_request:
+  push:
+    branches:
+      - master
 
 jobs:
   build:
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..4e6a92c
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1 @@
+repos: []
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..e0d5efa
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,46 @@
+# Code of Conduct
+
+As contributors and maintainers of the Jazzband projects, and in the interest of
+fostering an open and welcoming community, we pledge to respect all people who
+contribute through reporting issues, posting feature requests, updating documentation,
+submitting pull requests or patches, and other activities.
+
+We are committed to making participation in the Jazzband a harassment-free experience
+for everyone, regardless of the level of experience, gender, gender identity and
+expression, sexual orientation, disability, personal appearance, body size, race,
+ethnicity, age, religion, or nationality.
+
+Examples of unacceptable behavior by participants include:
+
+- The use of sexualized language or imagery
+- Personal attacks
+- Trolling or insulting/derogatory comments
+- Public or private harassment
+- Publishing other's private information, such as physical or electronic addresses,
+  without explicit permission
+- Other unethical or unprofessional conduct
+
+The Jazzband roadies have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are not
+aligned to this Code of Conduct, or to ban temporarily or permanently any contributor
+for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+By adopting this Code of Conduct, the roadies commit themselves to fairly and
+consistently applying these principles to every aspect of managing the jazzband
+projects. Roadies who do not follow or enforce the Code of Conduct may be permanently
+removed from the Jazzband roadies.
+
+This code of conduct applies both within project spaces and in public spaces when an
+individual is representing the project or its community.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by
+contacting the roadies at `roadies@jazzband.co`. All complaints will be reviewed and
+investigated and will result in a response that is deemed necessary and appropriate to
+the circumstances. Roadies are obligated to maintain confidentiality with regard to the
+reporter of an incident.
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version
+1.3.0, available at [https://contributor-covenant.org/version/1/3/0/][version]
+
+[homepage]: https://contributor-covenant.org
+[version]: https://contributor-covenant.org/version/1/3/0/
diff --git a/MANIFEST.in b/MANIFEST.in
index 4f06150..3757d2b 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,8 +1,10 @@
-include README.rst
-include CONTRIBUTING.md
+include .pre-commit-config.yaml
 include AUTHORS
+include CODE_OF_CONDUCT.md
+include CONTRIBUTING.md
+include LICENSE
+include README.rst
 include tox.ini
-recursive-include tests *
 recursive-include docs *
 recursive-include test_project *
-include LICENSE
+recursive-include tests *
diff --git a/README.rst b/README.rst
index 536b154..0716754 100644
--- a/README.rst
+++ b/README.rst
@@ -81,7 +81,7 @@ command line option, e.g.
     python manage.py runserver --settings=mysite.settings --configuration=Dev
 
 To enable Django to use your configuration you now have to modify your
-**manage.py** or **wsgi.py** script to use django-configurations's versions
+**manage.py**, **wsgi.py** or **asgi.py** script to use django-configurations's versions
 of the appropriate starter functions, e.g. a typical **manage.py** using
 django-configurations would look like this:
 
@@ -120,5 +120,18 @@ The same applies to your **wsgi.py** file, e.g.:
 Here we don't use the default ``django.core.wsgi.get_wsgi_application``
 function but instead ``configurations.wsgi.get_wsgi_application``.
 
+Or if you are not serving your app via WSGI but ASGI instead, you need to modify your **asgi.py** file too.:
+
+.. code-block:: python
+
+    import os
+
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.settings')
+    os.environ.setdefault('DJANGO_CONFIGURATION', 'DEV')
+
+    from configurations.asgi import get_asgi_application
+
+    application = get_asgi_application()
+
 That's it! You can now use your project with ``manage.py`` and your favorite
-WSGI enabled server.
+WSGI/ASGI enabled server.
diff --git a/configurations/asgi.py b/configurations/asgi.py
new file mode 100644
index 0000000..da9401b
--- /dev/null
+++ b/configurations/asgi.py
@@ -0,0 +1,8 @@
+from . import importer
+
+importer.install()
+
+from django.core.asgi import get_asgi_application  # noqa: E402
+
+# this is just for the crazy ones
+application = get_asgi_application()
diff --git a/configurations/base.py b/configurations/base.py
index b1bc1e9..a09af41 100644
--- a/configurations/base.py
+++ b/configurations/base.py
@@ -32,10 +32,31 @@ class ConfigurationBase(type):
             for base in bases[::-1]:
                 settings_vars.update(uppercase_attributes(base))
         attrs = dict(settings_vars, **attrs)
-        # Fix ImproperlyConfigured issue introduced in Django
+
+        deprecated_settings = {
+            # DEFAULT_HASHING_ALGORITHM is always deprecated, as it's a
+            # transitional setting
+            # https://docs.djangoproject.com/en/3.1/releases/3.1/#default-hashing-algorithm-settings
+            "DEFAULT_HASHING_ALGORITHM",
+            # DEFAULT_CONTENT_TYPE and FILE_CHARSET are deprecated in
+            # Django 2.2 and are removed in Django 3.0
+            "DEFAULT_CONTENT_TYPE",
+            "FILE_CHARSET",
+            # When DEFAULT_AUTO_FIELD is not explicitly set, Django's emits a
+            # system check warning models.W042. This warning should not be
+            # suppressed, as downstream users are expected to make a decision.
+            # https://docs.djangoproject.com/en/3.2/releases/3.2/#customizing-type-of-auto-created-primary-keys
+            "DEFAULT_AUTO_FIELD",
+        }
+        # PASSWORD_RESET_TIMEOUT_DAYS is deprecated in favor of
+        # PASSWORD_RESET_TIMEOUT in Django 3.1
         # https://github.com/django/django/commit/226ebb17290b604ef29e82fb5c1fbac3594ac163#diff-ec2bed07bb264cb95a80f08d71a47c06R163-R170
-        if "PASSWORD_RESET_TIMEOUT_DAYS" in attrs and "PASSWORD_RESET_TIMEOUT" in attrs:
-            attrs.pop("PASSWORD_RESET_TIMEOUT_DAYS")
+        if "PASSWORD_RESET_TIMEOUT" in attrs:
+            deprecated_settings.add("PASSWORD_RESET_TIMEOUT_DAYS")
+        for deprecated_setting in deprecated_settings:
+            if deprecated_setting in attrs:
+                del attrs[deprecated_setting]
+
         return super().__new__(cls, name, bases, attrs)
 
     def __repr__(self):
diff --git a/configurations/values.py b/configurations/values.py
index 38918ea..db4c38e 100644
--- a/configurations/values.py
+++ b/configurations/values.py
@@ -400,7 +400,7 @@ class PathValue(Value):
         value = super().setup(name)
         value = Path(value).expanduser()
         if self.check_exists and not value.exists():
-            raise ValueError('Path {0!r} does  not exist.'.format(value))
+            raise ValueError('Path {0!r} does not exist.'.format(value))
         value = value.absolute()
         return value if self.use_pathlib else str(value)
 
diff --git a/configurations/wsgi.py b/configurations/wsgi.py
index 54ab753..ea157a3 100644
--- a/configurations/wsgi.py
+++ b/configurations/wsgi.py
@@ -2,13 +2,7 @@ from . import importer
 
 importer.install()
 
-try:
-    from django.core.wsgi import get_wsgi_application
-except ImportError:  # pragma: no cover
-    from django.core.handlers.wsgi import WSGIHandler
-
-    def get_wsgi_application():  # noqa
-        return WSGIHandler()
+from django.core.wsgi import get_wsgi_application    # noqa: E402
 
 # this is just for the crazy ones
 application = get_wsgi_application()
diff --git a/docs/cookbook.rst b/docs/cookbook.rst
index bb5f048..21624e5 100644
--- a/docs/cookbook.rst
+++ b/docs/cookbook.rst
@@ -182,7 +182,7 @@ probably just add the following to the **beginning** of your settings module:
     import configurations
     configurations.setup()
 
-That has the same effect as using the ``manage.py`` or ``wsgi.py`` utilities.
+That has the same effect as using the ``manage.py``, ``wsgi.py`` or ``asgi.py`` utilities.
 This will also call ``django.setup()``.
 
 >= 3.1
@@ -332,8 +332,8 @@ Channels
 --------
 
 If you want to deploy a project that uses the Django channels with
-`Daphne <http://github.com/django/daphne/>` as the
-`interface server <http://channels.readthedocs.io/en/latest/deploying.html#run-interface-servers>`
+`Daphne <http://github.com/django/daphne/>`_ as the
+`interface server <http://channels.readthedocs.io/en/latest/deploying.html#run-interface-servers>`_
 you have to use a asgi.py script similar to the following:
 
 .. code-block:: python
diff --git a/docs/patterns.rst b/docs/patterns.rst
index d2070b8..eff644a 100644
--- a/docs/patterns.rst
+++ b/docs/patterns.rst
@@ -21,7 +21,6 @@ file:
 
     class Dev(Base):
         DEBUG = True
-        TEMPLATE_DEBUG = DEBUG
 
     class Prod(Base):
         TIME_ZONE = 'America/New_York'
diff --git a/docs/values.rst b/docs/values.rst
index 5f5dcea..ebd21d1 100644
--- a/docs/values.rst
+++ b/docs/values.rst
@@ -46,7 +46,6 @@ value:
 
     class Dev(Configuration):
         DEBUG = values.BooleanValue(True)
-        TEMPLATE_DEBUG = values.BooleanValue(DEBUG)
 
 See the list of :ref:`built-in value classes<built-ins>` for more information.
 
@@ -162,7 +161,7 @@ the prefix.
    :param environ: toggle for environment use
    :param environ_name: name of environment variable to look for
    :param environ_prefix: prefix to use when looking for environment variable
-   :param environ_required: wheter or not the value is required to be set as an environment variable
+   :param environ_required: whether or not the value is required to be set as an environment variable
    :type environ: bool
    :type environ_name: capitalized string or None
    :type environ_prefix: capitalized string
@@ -353,6 +352,10 @@ Type values
         DEPARTMENTS = values.DictValue({
             'it': ['Mike', 'Joe'],
         })
+        
+    Override using environment variables like this::
+    
+        DJANGO_DEPARTMENTS={'it':['Mike','Joe'],'hr':['Emma','Olivia']}
 
 Validator values
 ^^^^^^^^^^^^^^^^
@@ -547,7 +550,7 @@ Other values
 
     ::
 
-        MIDDLEWARE_CLASSES = values.BackendsValue([
+        MIDDLEWARE = values.BackendsValue([
             'django.middleware.common.CommonMiddleware',
             'django.contrib.sessions.middleware.SessionMiddleware',
             'django.middleware.csrf.CsrfViewMiddleware',
diff --git a/setup.py b/setup.py
index 7a578e2..a77b6d8 100644
--- a/setup.py
+++ b/setup.py
@@ -26,15 +26,16 @@ setup(
             'django-cadmin = configurations.management:execute_from_command_line',
         ],
     },
-    install_requires=[],
+    install_requires=[
+        'django>=2.2',
+        'setuptools',
+    ],
     extras_require={
         'cache': ['django-cache-url'],
         'database': ['dj-database-url'],
         'email': ['dj-email-url'],
         'search': ['dj-search-url'],
         'testing': [
-            'django-discover-runner',
-            'mock',
             'django-cache-url>=1.0.0',
             'dj-database-url',
             'dj-email-url',
diff --git a/test_project/test_project/settings.py b/test_project/test_project/settings.py
index 295981c..879a3b8 100644
--- a/test_project/test_project/settings.py
+++ b/test_project/test_project/settings.py
@@ -5,7 +5,6 @@ class Base(Configuration):
     # Django settings for test_project project.
 
     DEBUG = values.BooleanValue(True, environ=True)
-    TEMPLATE_DEBUG = DEBUG
 
     ADMINS = (
         # ('Your Name', 'your_email@example.com'),
@@ -95,7 +94,7 @@ class Base(Configuration):
         'django.template.loaders.app_directories.Loader',
     )
 
-    MIDDLEWARE_CLASSES = (
+    MIDDLEWARE = (
         'django.middleware.common.CommonMiddleware',
         'django.contrib.sessions.middleware.SessionMiddleware',
         'django.middleware.csrf.CsrfViewMiddleware',
diff --git a/tests/management/__init__.py b/tests/management/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/tests/management/commands/__init__.py b/tests/management/commands/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/tests/management/commands/old_optparse_command.py b/tests/management/commands/old_optparse_command.py
deleted file mode 100644
index d7844e5..0000000
--- a/tests/management/commands/old_optparse_command.py
+++ /dev/null
@@ -1,16 +0,0 @@
-from optparse import make_option
-from django.core.management.base import BaseCommand
-
-
-class Command(BaseCommand):
-
-    # Used by a specific test to see how unupgraded
-    # management commands play with configurations.
-    # See the test code for more details.
-
-    option_list = BaseCommand.option_list + (
-        make_option('--arg1', action='store_true'),
-    )
-
-    def handle(self, *args, **options):
-        pass