placement/releasenotes/notes/allocation-candidates-root_...

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YAML

---
features:
- |
Microversion 1.35_ adds support for the ``root_required`` query parameter
to the ``GET /allocation_candidates`` API. It accepts a comma-delimited
list of trait names, each optionally prefixed with ``!`` to indicate a
forbidden trait, in the same format as the ``required`` query parameter.
This restricts allocation requests in the response to only those whose
(non-sharing) tree's root resource provider satisfies the specified trait
requirements.
.. _1.35: https://docs.openstack.org/placement/latest/placement-api-microversion-history.html#support-root_required-queryparam-on-get-allocation_candidates