A VM that disappears from its compute keeps its owners in a tombstone
until INSTANCE_OWNERSHIP_RETENTION_DAYS pass, but nothing showed them.
Superusers now see them on the "Removed VMs" admin page (name, UUID,
owners, removed, expires) and can remove one, so a VM deleted on
purpose no longer hands its owners to a later VM with the same UUID.
Django 4.2 reached end of life on 2026-04-07.
- Django==5.2.17; django-login-required-middleware 0.9.0 keeps working
(the authorization matrix passes).
- USE_L10N removed from the settings template.
- Log out is a POST form in the navbar; Django 5 removed GET logout.
- pip-audit in CI no longer ignores the Django 4.2.30 advisories.
- README: Django 5.2, backup step and upgrade notes for existing
settings and GET logout callers.
python -Wd manage.py test shows no Django deprecation warnings. The live
libvirt suite passes on 5.2 and on 4.2 against a RHEL qemu-kvm host.
