Drop Django 3.2 to 4.1 support (#362)

These versions are all EOL since April.

.pre-commit-config.yaml

@@ -39,7 +39,7 @@ 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:

CHANGELOG.rst

@@ -2,6 +2,11 @@
 Changelog
 =========
 
+Unreleased
+----------
+
+* Drop Django 3.2 to 4.1 support.
+
 2.15.0 (2024-10-13)
 -------------------
 

README.rst

@@ -33,7 +33,7 @@ Requirements
 
 Python 3.9 to 3.13 supported.
 
-Django 3.2 to 5.1 supported.
+Django 4.2 to 5.1 supported.
 
 Installation
 ============
@@ -163,7 +163,7 @@ The command then:
 2. edits it to depend on the new migration from your main branch
 3. updates ``max_migration.txt``.
 
-If Black is installed, the command formats the updated migration file with it, like Django’s built-in migration commands do (from version 4.1+).
+If Black is installed, the command formats the updated migration file with it, like Django’s built-in migration commands do.
 See below for some examples and caveats.
 
 Note rebasing the migration might not always be the *correct* thing to do.

pyproject.toml

@@ -18,9 +18,6 @@ authors = [
 requires-python = ">=3.9"
 classifiers = [
   "Development Status :: 5 - Production/Stable",
-  "Framework :: Django :: 3.2",
-  "Framework :: Django :: 4.0",
-  "Framework :: Django :: 4.1",
   "Framework :: Django :: 4.2",
   "Framework :: Django :: 5.0",
   "Framework :: Django :: 5.1",
@@ -38,7 +35,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-  "django>=3.2",
+  "django>=4.2",
 ]
 urls.Changelog = "https://github.com/adamchainz/django-linear-migrations/blob/main/CHANGELOG.rst"
 urls.Funding = "https://adamj.eu/books/"

tests/requirements/compile.py

@@ -21,36 +21,6 @@
         *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,
@@ -61,36 +31,6 @@
         ],
         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,
@@ -121,16 +61,6 @@
         ],
         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,