--- prelude: > This is a major version release of python-cinderclient. Backwards compatibility has been removed for some long standing deprecations and support for the Cinder v1 API has been removed. Prior to upgrading to this release, ensure all Cinder services that need to be managed are 13.0.0 (Rocky) or later. upgrade: - | This version of the python-cinderclient no longer supports the Cinder v1 API. Ensure all mananaged services have at least the v2 API available prior to upgrading this client.