feat: drop django 2.2, 3.0, and 3.1 support

Author: dopry

CHANGELOG.md

@@ -16,6 +16,7 @@
 
 ### Removed
 - Python 3.5 and 3.6 support
+- Django 2.2, 3.0, and 3.1 support
 - Admin Monkey Patching
 
   The Admin UI will not longer be automatically patched. The `TwoFactorSiteAdmin` will need to be explicitly

docs/requirements.rst

@@ -3,8 +3,7 @@ Requirements
 
 Django
 ------
-Modern Django versions are supported. Currently this list includes Django 2.2,
-3.0, 3.1, 3.2, and 4.0.
+Supported Django versions are supported. Currently this list includes Django 3.2, and 4.0.
 
 Python
 ------

setup.py

@@ -12,7 +12,7 @@
     license='MIT',
     packages=find_packages(exclude=('example', 'tests')),
     install_requires=[
-        'Django>=2.2',
+        'Django>=3.2',
         'django_otp>=0.8.0',
         'qrcode>=4.0.0,<7.99',
         'django-phonenumber-field>=1.1.0,<7',
@@ -30,9 +30,6 @@
         'Development Status :: 5 - Production/Stable',
         'Environment :: Web Environment',
         'Framework :: Django',
-        'Framework :: Django :: 2.2',
-        'Framework :: Django :: 3.0',
-        'Framework :: Django :: 3.1',
         'Framework :: Django :: 3.2',
         'Framework :: Django :: 4.0',
         'Intended Audience :: Developers',
@@ -41,6 +38,7 @@
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3 :: Only',
+        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',

tox.ini

@@ -2,8 +2,6 @@
 ; Minimum version of Tox
 minversion = 1.8
 envlist =
-    py{37,38,39}-dj22-{normal,yubikey,custom_user},
-    py{37,38,39}-dj31-{normal,yubikey,custom_user},
     py{37,38,39,310}-dj32-{normal,yubikey,custom_user},
     py{38,39,310}-dj40-{normal,yubikey,custom_user}
     py{38,39,310}-djmain-{normal,yubikey,custom_user}
@@ -17,9 +15,6 @@ python =
 
 [gh-actions:env]
 DJANGO =
-    2.2: dj22
-    3.0: dj30
-    3.1: dj31
     3.2: dj32
     4.0: dj40
     main: djmain
@@ -39,8 +34,6 @@ basepython =
     py39: python3.9
     py310: python3.10
 deps =
-    dj22: Django<2.3
-    dj31: Django<3.2
     dj32: Django<4.0
     dj40: Django<4.1
     djmain: https://github.com/django/django/archive/main.tar.gz