---
features:
  - |
    Adds a configuration option ``[iptables]ip_version`` to specify the
    desired ip version for the iptables pxe filter, possible values are ``4``
    and ``6``, the default value is ``4``. When set to ``6``, the iptables
    pxe filter will use ``ip6tables`` command to manage rules for the DHCPv6
    port ``547``.