Update Django to Version 5.0

[afuetterer]

Rationale / Begründung

After updating to Django 4.2 just recently, there is already an alpha release of Django 5.0. The official release is scheduled for 2023-12-04. We could add another test case to catch breaking changes early on. Dependabot would also send us a PR in December, but it might be nice to be prepared for this update, with Django being rdmo's main dependency.

Affected

Admins, Devs

Notes

In GitHub Actions:

• add django5 matrix entry, using include
• in tests step add pip install django ~5 at the end

References / Verweise

• https://pypi.org/project/Django/#history
• https://pypi.org/project/Django/5.0a1/
• https://code.djangoproject.com/wiki/Version5.0Roadmap
• https://github.com/jefftriplett/python-github-actions-matrix-demo/blob/main/.github/workflows/actions.yml

[afuetterer]

Django 5.0 is in beta now. It only supports Python >= 3.10.
https://docs.djangoproject.com/en/dev/releases/5.0/#python-compatibility

What does this mean for rdmo? Stick with Django 4.2 to be Python 3.8 and 3.9 compatible?

[jochenklar]

Yes please, for as long as possible.

[afuetterer]

Summary:

Django cannot be updated to 5.0, because it will drop Support for Python <= 3.10.
Django 4.2 is a LTS version, that receives extended support until 2026. Python 3.9 EOLs in 2025.

Django 4.2 is here to stay for the next two years.

Refs:

• https://devguide.python.org/versions/
• https://www.djangoproject.com/download/