---
upgrade:
  - |
    Integration with sahara has been removed because the sahara project has
    been retired. Because of the removal, the following resource types are no
    longer supported and now hidden.

    - ``OS::Senlin::Cluster``
    - ``OS::Senlin::Node``
    - ``OS::Senlin::Policy``
    - ``OS::Senlin::Profile``
    - ``OS::Senlin::Receiver``

    Also, the options in ``[clients_sahara]`` section have been removed.

  - |
    Default value of the ``[DEFAULT] hidden_stack_tags`` option has been
    updated and now stacks with the ``data-processing-cluster`` tag is not
    hidden by default.
