Drop Django 3.2 to 4.1 support (#614)

These versions are all EOL since April.

Author: adamchainz

.pre-commit-config.yaml

@@ -44,7 +44,7 @@ repos:
   rev: 1.21.0
   hooks:
   - id: django-upgrade
-    args: [--target-version, '3.2']
+    args: [--target-version, '4.2']
 - repo: https://github.com/psf/black-pre-commit-mirror
   rev: 24.8.0
   hooks:

docs/changelog.rst

@@ -2,6 +2,11 @@
 Changelog
 =========
 
+Unreleased
+----------
+
+* Drop Django 3.2 to 4.1 support.
+
 * Drop Python 3.8 support.
 
 * Support Python 3.13.

docs/django.rst

@@ -83,9 +83,7 @@ caching.
 
 WhiteNoise comes with a storage backend which compresses your files and hashes
 them to unique names, so they can safely be cached forever. To use it, set it
-as your staticfiles storage backend in your settings file.
-
-On Django 4.2+:
+as your staticfiles storage backend in your settings file:
 
 .. code-block:: python
 
@@ -96,12 +94,6 @@ On Django 4.2+:
         },
     }
 
-On older Django versions:
-
-.. code-block:: python
-
-   STATICFILES_STORAGE = "whitenoise.storage.CompressedManifestStaticFilesStorage"
-
 This combines automatic compression with the caching behaviour provided by
 Django's ManifestStaticFilesStorage_ backend. If you want to apply compression
 but don't want the caching behaviour then you can use the alternative backend:

docs/index.rst

@@ -31,7 +31,7 @@ WhiteNoise works with any WSGI-compatible application.
 
 Python 3.8 to 3.13 supported.
 
-Django 3.2 to 5.1 supported.
+Django 4.2 to 5.1 supported.
 
 Installation
 ------------

pyproject.toml

@@ -23,9 +23,6 @@ requires-python = ">=3.9"
 classifiers = [
   "Development Status :: 5 - Production/Stable",
   "Framework :: Django",
-  "Framework :: Django :: 3.2",
-  "Framework :: Django :: 4.0",
-  "Framework :: Django :: 4.1",
   "Framework :: Django :: 4.2",
   "Framework :: Django :: 5.0",
   "Framework :: Django :: 5.1",

tests/django_settings.py

@@ -2,8 +2,6 @@
 
 import os.path
 
-import django
-
 from tests.utils import TEST_FILE_PATH
 from tests.utils import AppServer
 
@@ -20,14 +18,11 @@
 
 STATIC_ROOT = os.path.join(TEST_FILE_PATH, "root")
 
-if django.VERSION >= (4, 2):
-    STORAGES = {
-        "staticfiles": {
-            "BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
-        },
-    }
-else:
-    STATICFILES_STORAGE = "whitenoise.storage.CompressedManifestStaticFilesStorage"
+STORAGES = {
+    "staticfiles": {
+        "BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
+    },
+}
 
 MIDDLEWARE = ["whitenoise.middleware.WhiteNoiseMiddleware"]
 

tests/requirements/compile.py

@@ -22,36 +22,6 @@
         *sys.argv[1:],
     ]
     run = partial(subprocess.run, check=True)
-    run(
-        [
-            *common_args,
-            "--python",
-            "3.9",
-            "--output-file",
-            "py39-django32.txt",
-        ],
-        input=b"Django>=3.2a1,<3.3",
-    )
-    run(
-        [
-            *common_args,
-            "--python",
-            "3.9",
-            "--output-file",
-            "py39-django40.txt",
-        ],
-        input=b"Django>=4.0a1,<4.1",
-    )
-    run(
-        [
-            *common_args,
-            "--python",
-            "3.9",
-            "--output-file",
-            "py39-django41.txt",
-        ],
-        input=b"Django>=4.1a1,<4.2",
-    )
     run(
         [
             *common_args,
@@ -62,36 +32,6 @@
         ],
         input=b"Django>=4.2a1,<5.0",
     )
-    run(
-        [
-            *common_args,
-            "--python",
-            "3.10",
-            "--output-file",
-            "py310-django32.txt",
-        ],
-        input=b"Django>=3.2a1,<3.3",
-    )
-    run(
-        [
-            *common_args,
-            "--python",
-            "3.10",
-            "--output-file",
-            "py310-django40.txt",
-        ],
-        input=b"Django>=4.0a1,<4.1",
-    )
-    run(
-        [
-            *common_args,
-            "--python",
-            "3.10",
-            "--output-file",
-            "py310-django41.txt",
-        ],
-        input=b"Django>=4.1a1,<4.2",
-    )
     run(
         [
             *common_args,
@@ -122,16 +62,6 @@
         ],
         input=b"Django>=5.1a1,<5.2",
     )
-    run(
-        [
-            *common_args,
-            "--python",
-            "3.11",
-            "--output-file",
-            "py311-django41.txt",
-        ],
-        input=b"Django>=4.1a1,<4.2",
-    )
     run(
         [
             *common_args,