---
features:
  - |
    Train release includes a change to how cache prefetching works. As the
    prefetcher was one of the last components still relying to the
    glance-registry the requirement was removed by implementing the prefetcher
    as part of glance-api. Crontab based prefetcher is not available anymore
    and the new prefetching will be set up through glance-api.conf.
upgrade:
  - |
    Location metadata key ``backend`` has been changed to ``store``. Any
    environment that might be using the old ``backend`` key will have the key
    name changed through lazy update upon access.
fixes:
  - |
    Bug 1836140_: Image deletion returns 500 if 'file' store is not enabled

    .. _1836140: https://bugs.launchpad.net/glance/+bug/1836140