--- upgrade: - The DotHill drivers have been marked as unsupported and are now deprecated. ``enable_unsupported_drivers`` will need to be set to ``True`` in cinder.conf to continue to use it. deprecations: - The DotHill drivers has been marked as unsupported and are now deprecated. ``enable_unsupported_drivers`` will need to be set to ``True`` in cinder.conf to continue to use it. If its support status does not change it will be removed in the next release.