---
features:
  - |
    The following parameters have been added to the ``heat::engine`` class.

    - ``action_retry_limit``
    - ``max_server_name_length``
    - ``max_interface_check_attempts``
    - ``event_purge_batch_size``
    - ``max_events_per_stack``
    - ``stack_action_timeout``
    - ``error_wait_time``
