---
features:
  - OSprofiler support was added. This cross-project profiling library
    allows to trace various requests through all OpenStack
    services that support it. To initiate OpenStack
    request tracing `--profile <HMAC_KEY>` option needs to be added to
    the CLI command. Configuration and usage details can be foung in
    [`OSProfiler documentation <http://docs.openstack.org/developer/osprofiler/api.html>`_]
upgrade:
  - OSprofiler support was introduced. To allow its usage the
    keystone-paste.ini file needs to be modified to contain osprofiler
    middleware.