Wagtail 7.4 maintenance

[nickmoreton]

Maintenance pass to extend the support window: add Python 3.14, Django 6.0, and Wagtail 7.3 / 7.4 (LTS); drop end-of-life Wagtail 6.x; refresh tooling and test fixtures.

Additions

• Add support for Python 3.14 (tested against Wagtail 7.3+ on Django 5.2 and 6.0; Wagtail 7.0 LTS does not support Python 3.14 and is excluded from those cells).
• Add support for Django 6.0 (paired with Wagtail 7.3 and 7.4 LTS).
• Add support for Wagtail 7.3 and Wagtail 7.4 LTS.
• Add Framework :: Django :: 6.0 and Programming Language :: Python :: 3.14 classifiers.
• Add locale field to test page fixtures (required by Wagtail 7.3+).

Removals

• Drop support for Wagtail 6.3 LTS and Wagtail 6.4 (both end-of-life).
• Remove dead Django 1.x / 2.x try/except ImportError shim from wagtailinventory/tests/urls.py (all supported Django versions provide django.urls.include / re_path).
• Remove the Framework :: Wagtail :: 6 classifier.

Changes

• Raise wagtail minimum from >=6.2 to >=7.0 in pyproject.toml.
• Update tox envlist:
  • python{3.12,3.13}-django5.2-wagtail7.0
  • python{3.12,3.13,3.14}-django{5.2,6.0}-wagtail{7.3,7.4}
• Update GitHub Actions test matrix to include Python 3.14, with excludes for python: "3.14" + wagtail: "7.0" and the existing django: "6.0" + wagtail: "7.0".
• Bump pre-commit hook versions: ruff-pre-commit v0.14.3 → v0.15.14, bandit 1.8.6 → 1.9.4.
• Update README compatibility section to reflect new supported versions.
• Update Unreleased section of CHANGELOG.md.

Testing

1. Run tox -e lint.
2. Run the full tox matrix locally or via CI — each Python × Django × Wagtail cell should pass all 14 tests.
3. Spot-check Python 3.14 cells locally:
   • tox -e python3.14-django5.2-wagtail7.3
   • tox -e python3.14-django6.0-wagtail7.4
4. Confirm tox -e interactive still boots the test app against Wagtail 7.4 / Django 5.2.

Screenshots

N/A — no UI changes.

Notes

• Python 3.14 was released 2025-10-07 and is in bugfix support. Django 5.2 supports Python 3.14 from 5.2.8 onward; the Django>=5.2,<5.3 specifier resolves to a compatible patch.
• Wagtail 7.0 LTS supports Python 3.9–3.13 only, so the matrix intentionally excludes Python 3.14 × Wagtail 7.0.
• Django 5.2 must remain in the support range while Wagtail 7.0 LTS is supported, since Wagtail 7.0 does not support Django 6.0.

Todos

• None outstanding.

Checklist

• PR has an informative and human-readable title
• Changes are limited to a single goal (no scope creep)
• Code can be automatically merged (no conflicts)
• Code follows the standards laid out in the development playbook
• Passes all existing automated tests
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output) — N/A, no new functions
• Placeholder code is flagged / future todos are captured in comments
• Visually tested in supported browsers and devices (see checklist below 👇) — N/A, no UI changes
• Project documentation has been updated (including the "Unreleased" section of the CHANGELOG)
• Reviewers requested with the Reviewers tool ➡️

Testing checklist

Browsers

• Chrome
• Firefox
• Safari
• Internet Explorer 8, 9, 10, and 11
• Edge
• iOS Safari
• Chrome for Android

Accessibility

• Keyboard friendly
• Screen reader friendly

Other

• Is useable without CSS
• Is useable without JS
• Flexible from small to large screens
• No linting errors or warnings
• JavaScript tests are passing

[nickmoreton]

#90 Could be closed now