Bump Python + Django versions we test

Based on https://endoflife.date/python and
https://endoflife.date/django

3.9 is still supported too, so we could test that as well

Python 3.9 isn't supported by Django 5.0+

Author: bailey-coding

.github/workflows/tests.yml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
 
     steps:
     - uses: actions/checkout@v3

.travis.yml

@@ -1,10 +1,10 @@
 language: python
 
 python:
-  - "3.6"
-  - "3.7"
-  - "3.8"
-  - "3.9"
+  - "3.10"
+  - "3.11"
+  - "3.12"
+  - "3.13"
 
 install:
   - pip install tox-travis

README.rst

@@ -28,12 +28,14 @@ stable pypi/master: https://github.com/vintasoftware/django-templated-email/blob
 
 Requirements
 =================
-* Python (3.6, 3.7, 3.8, 3.9, 3.10, 3.11)
-* Django (3.2, 4.0, 4.1)
+* Python (3.9*, 3.10, 3.11, 3.12, 3.13)
+* Django (4.2, 5.0, 5.1)
 
 We **highly recommend** and only officially support the latest patch release of
 each Python and Django series.
 
+Python 3.9 is no longer supported in Django 5.0 and newer, so is only supported with Django 4.2.
+
 
 Getting going - installation
 ==============================

setup.py

@@ -24,6 +24,7 @@
     'Intended Audience :: Developers',
     'License :: OSI Approved :: MIT License',
     'Operating System :: OS Independent',
+    'Programming Language :: Python :: 3.9',
     'Programming Language :: Python :: 3.10',
     'Programming Language :: Python :: 3.11',
     'Programming Language :: Python :: 3.12',

tox.ini

@@ -1,30 +1,31 @@
 [tox]
-envlist = {linux}-py{38,39,310,311}-django{32,40,41,42}
+envlist =
+  linux-py39-django42
+  linux-py{310,311,312,313}-django{42,50,51} 
 
 [gh-actions]
 python =
-    3.8: py38
     3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
+    3.13: py313
 
 
 [gh-actions:env]
 OS =
     ubuntu-latest: linux
 DJANGO =
-    3.2: django32
-    4.0: django40
-    4.1: django41
-    4.2: django42
+    4.2: django42    
+    5.0: django50
+    5.1: django51
 
 [testenv]
 commands=
     py.test --cov=templated_email tests/
 deps=
     -rtox-requirements.txt
     pytest-cov
-    django32: django~=3.2
-    django40: django~=4.0
-    django41: django~=4.1
     django42: django~=4.2
+    django50: django~=5.0
+    django51: django~=5.1