Tentatively add tests and declare support for Django 4.0

Author: thibaudcolas

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
         with:
           poetry-version: '1.1.4'
       - run: pip install tox
-      - run: tox -e lint,py39-dj31
+      - run: tox -e lint,py39-dj32
   test_compatibility:
     needs: test
     runs-on: ubuntu-latest
@@ -28,9 +28,9 @@ jobs:
           - python: "3.7"
             toxenv: py37-dj22,py37-dj30,py37-dj31,py37-dj32
           - python: "3.8"
-            toxenv: py38-dj22,py38-dj30,py38-dj31,py38-dj32
+            toxenv: py38-dj22,py38-dj30,py38-dj31,py38-dj32,py38-djmain
           - python: "3.9"
-            toxenv: py39-dj22,py39-dj30,py39-dj31,py39-dj32
+            toxenv: py39-dj22,py39-dj30,py39-dj31,py39-dj32,py39-djmain
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 ### Added
 
-- We now officially support Django 3.2
+- We now officially support Django 3.2, and tentatively Django 4.0
 
 ### Fixed