• Add Django 4.2 support.
• Drop Django 2.2 support.
• Add pyupgrade and django-upgrade to pre-commit hooks.
• Upgrade syntax for Python >= 3.8.
• Set max line length to 88.
• Switch from setup.py to pyproject.toml.
• Replace flake8 with Ruff.
• Add locales (en and it).
• Add metadata module.
• Set max line length to 88.
• Run pre-commit also with tox.
• Bump requirements.
• Pin test requirements.
• Rename default branch from master to main.