---
features:
  - |
    Microversion 2.53 changes service and hypervisor IDs to UUIDs to ensure
    uniqueness across cells. Prior to this, ID collisions were possible in
    multi-cell deployments. See the `REST API Version History`_ and
    `Compute API reference`_ for details.

    .. _REST API Version History: https://docs.openstack.org/developer/nova/api_microversion_history.html
    .. _Compute API reference: https://developer.openstack.org/api-ref/compute/