openstack/nova — Week of 2026-06-13

Release notes housekeeping. Most of the week's ~18k-line churn comes from converting EOL and EOM release notes into static pages (989210 and a companion change for EOM), freezing historical notes out of the live build.

Bug fixes. Several long-standing edge cases got cleaned up. Resize was tightened to reject unpermitted flavors, port handling was fixed so that an error while updating a port on a multi-network instance no longer leaves the port hanging around, and an AttributeError in Service.stop() during early-startup shutdown was patched. A separate fix addresses an error that surfaced when multiple security groups in the same project shared a name. Each fix landed alongside a regression or reproducer test.

Libvirt and config surface. The libvirt driver gained a new config option for the live migration monitor interval, giving operators a knob over how frequently migrations are polled. A small libvirt utility that no longer had callers was dropped.

Maintenance. Cell URL parsing and Host header parsing were both reworked to use shared oslo.utils helpers instead of in-tree code. On the CI side, the graceful-shutdown jobs picked up irrelevant-files rules, and a flaky resize-reschedule functional test got more generous wait retries.