test against django 4.0 proper

Author: jeking3

.github/workflows/test.yml

@@ -12,21 +12,21 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
-        django-version: ['2.2', '3.1', '3.2', '4.0rc1', 'main']
+        django-version: ['2.2', '3.1', '3.2', '4.0', 'main']
 
         exclude:
+          - python-version: '3.6'
+            django-version: '4.0'
           - python-version: '3.6'
             django-version: 'main'
+          - python-version: '3.7'
+            django-version: '4.0'
           - python-version: '3.7'
             django-version: 'main'
           - python-version: '3.10'
             django-version: '2.2'
           - python-version: '3.10'
             django-version: '3.1'
-          - python-version: '3.6'
-            django-version: '4.0b1'
-          - python-version: '3.7'
-            django-version: '4.0b1'
 
     services:
 

tox.ini

@@ -34,7 +34,7 @@ deps =
     dj22: Django>=2.2,<2.3
     dj31: Django>=3.1,<3.2
     dj32: Django>=3.2,<3.3
-    dj40: Django>=4.0rc1,<4.1
+    dj40: Django>=4.0,<4.1
     djmain: https://github.com/django/django/tarball/main
     postgres: -rrequirements/postgres.txt
     mysql: -rrequirements/mysql.txt