Test against Django 3.0

.appveyor.yml

@@ -17,19 +17,25 @@ environment:
       TOXENV: "py36-django21"
     - PYTHON: "C:\\Python36"
       TOXENV: "py36-django22"
+    - PYTHON: "C:\\Python36"
+      TOXENV: "py36-django30"
     - PYTHON: "C:\\Python37"
       TOXENV: "py37-django20"
     - PYTHON: "C:\\Python37"
       TOXENV: "py37-django21"
     - PYTHON: "C:\\Python37"
       TOXENV: "py37-django22"
+    - PYTHON: "C:\\Python37"
+      TOXENV: "py37-django30"
 # Disabled until Appveyor supports Python 3.8
 #     - PYTHON: "C:\\Python38"
 #       TOXENV: "py38-django20"
 #     - PYTHON: "C:\\Python38"
 #       TOXENV: "py38-django21"
 #     - PYTHON: "C:\\Python38"
 #       TOXENV: "py38-django22"
+#     - PYTHON: "C:\\Python38"
+#       TOXENV: "py38-django30"
 matrix:
   fast_finish: true
 install:

.travis.yml

@@ -28,6 +28,8 @@ matrix:
       python: 3.6
     - env: TOXENV=py36-django22
       python: 3.6
+    - env: TOXENV=py36-django30
+      python: 3.6
     - env: TOXENV=py36-master
       python: 3.6
     - env: TOXENV=py37-django20
@@ -36,6 +38,8 @@ matrix:
       python: 3.7
     - env: TOXENV=py37-django22
       python: 3.7
+    - env: TOXENV=py37-django30
+      python: 3.7
     - env: TOXENV=py37-master
       python: 3.7
     - env: TOXENV=py38-django20
@@ -44,6 +48,8 @@ matrix:
       python: 3.8
     - env: TOXENV=py38-django22
       python: 3.8
+    - env: TOXENV=py38-django30
+      python: 3.8
     - env: TOXENV=py38-master
       python: 3.8
 script: tox -v

docs/index.rst

@@ -117,7 +117,7 @@ Compatibility
 WhiteNoise works with any WSGI-compatible application and is tested on Python
 **3.5** – **3.8** and **PyPy**, on both Linux and Windows.
 
-Django WhiteNoiseMiddlware is tested with Django versions **1.11** --- **2.2**
+Django WhiteNoiseMiddlware is tested with Django versions **1.11** --- **3.0**
 
 
 Endorsements

tox.ini

@@ -5,6 +5,7 @@ envlist =
   py{35,36,37,py3}-django20,
   py{35,36,37,py3}-django21,
   py{35,36,37,py3}-django22,
+  py{36,37,38,py3}-django30,
   py{36,37,38,py3}-master,
 
 [testenv]
@@ -21,6 +22,7 @@ deps =
   django20: Django>=2.0,<2.1
   django21: Django>=2.1,<2.2
   django22: Django>=2.2,<3.0
+  django30: Django>=3.0,<3.1
   master: https://github.com/django/django/archive/master.tar.gz
 extras =
   brotli