---
prelude: >
    This release includes a fix for a major `race condition
    <https://bugs.launchpad.net/ironic/+bug/1715190>`_:
    use the ``ironic-dbsync online_data_migrations`` command from this
    release. The one from older (9.0.0 - 9.1.0) releases could cause a
    a port's physical_network information to be deleted from the database.

upgrade:
  - |
    Use the ``ironic-dbsync online_data_migrations`` command from this
    release. The one from older (9.0.0 - 9.1.0) releases could cause a
    a port's physical_network information to be deleted from the database.
critical:
  - |
    Use the ``ironic-dbsync online_data_migrations`` command from this
    release. The one from older (9.0.0 - 9.1.0) releases could cause a
    a port's physical_network information to be deleted from the database.