releasenotes/notes/libvirt-catch-downgrade-d297347d745211f0.yaml


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---
fixes:
  - |
    Prevents accidental ``libvirt`` downgrades in ``nova_libvirt`` container
    image during deploy and upgrade. Adds a ``nova_libvirt`` version check that
    resolves the target image digest once on the first compute host
    and runs only on hypervisors where the running container digest differs
    from the target.