---
upgrade:
  - |
    The following parameters of the ``heat`` class has been removed.

    - ``database_min_pool_size``
    - ``database_connection``
    - ``database_idle_timeout``
    - ``database_max_overflow``
    - ``database_max_pool_size``
    - ``database_max_retries``
    - ``database_retry_interval``
    - ``sync_db``

  - |
    The ``database_min_pool_size`` parameter of the ``heat::db`` class has been
    removed.
