--- deprecations: - | Abstract method ``plug_new`` from the neutron.agent.linux.interface.LinuxInterfaceDriver class now accepts an optional parameter ``link_up``. Usage of this method, which takes from 5 to 9 positional arguments, without ``link_up`` is now deprecated and will not be possible starting in the W release. Third-party drivers which inherit from this base class should update the implementation of their ``plug_new`` method.