---
features:
 - >
   [`blueprint support-federated-attr <https://blueprints.launchpad.net/keystone/+spec/support-federated-attr>`_]
   Added new filters to the `list user` API (``GET /v3/users``) to support
   querying federated identity attributes: ``idp_id``, ``protocol_id``, and
   ``unique_id``.