---
prelude: >
    Timestamp fields have been added to neutron core resources.
features:
  - Add timestamp fields ``created_at``, ``updated_at`` into neutron core
    resources for example networks, subnets, ports and subnetpools.
  - These resources can now be queried by ``changed-since``, which
    returns the resources changed after a specific time string like
    ``YYYY-MM-DDTHH:MM:SS``.
