---
features:
  - >
    [`bug 1540022 <https://bugs.launchpad.net/keystonemiddleware/+bug/1540022>`_]
    The auth_token middleware will now accept a conf setting named
    ``oslo_config_config``. If this is set its value must be an existing
    oslo_config `ConfigOpts`. ``oslo_config_config`` takes precedence over
    ``oslo_config_project``. This feature is useful to applications that
    are instantiating the auth_token middleware themselves and wish to
    use an existing configuration.