---
upgrade:
  - |
    The following metadata definitions have been modified in the Train
    release:

    * Added ``hw:mem_encryption`` boolean in the ``OS::Nova::Flavor``
      namespace, and ``hw_mem_encryption`` boolean in the
      ``OS::Glance::Image`` namespace.

    * Added ``hw_pmu`` boolean, and ``hw_cdrom_bus`` and
      ``hw_firmware_type`` enumerations in the
      ``OS::Compute::LibvirtImage`` namespace.

    * Added ``powervm`` to the ``hypervisor_type`` enumeration in the
      ``OS:::Compute::Hypervisor`` namespace.

    * Added ``virtio``, ``gop`` and ``none`` to the ``hw_video_model``
      enumeration in the ``OS::Compute::LibvirtImage`` namespace.

    You may upgrade these definitions using:

    ``glance-manage db load_metadefs [--path <path>] [--merge] [--prefer_new]``