---
fixes:
  - |
    [`bug 1760205 <https://bugs.launchpad.net/keystone/+bug/1760205>`_]
    When deleting a shadow user, the related cache info is not invalidated so
    that Keystone will raise 404 UserNotFound error when authenticating with
    the previous federation info. This bug has been fixed now.

other:
  - |
    A new interface called `list_federated_users_info` is added to shadow
    backend. It's used to get the shadow user information internally. If you
    are maintaining any out-tree shadow backends, please implement this
    function for them as well.