---
upgrade:
  - >
    Keystone now uses oslo.cache. Update the `[cache]` section of
    `keystone.conf` to point to oslo.cache backends:
    ``oslo_cache.memcache_pool`` or ``oslo_cache.mongo``. Refer to the
    sample configuration file for examples. See `oslo.cache
    <http://docs.openstack.org/developer/oslo.cache>`_ for additional
    documentation.
deprecations:
  - >
    [`blueprint deprecated-as-of-mitaka <https://blueprints.launchpad.net/keystone/+spec/deprecated-as-of-mitaka>`_]
    ``keystone.common.cache.backends.memcache_pool``,
    ``keystone.common.cache.backends.mongo``, and
    ``keystone.common.cache.backends.noop`` are deprecated in favor of
    oslo.cache backends. The keystone backends will be removed in the 'O'
    release.