Hi all, If you maintain an out-of-tree DHCP provider, this is a heads up on a breaking change that just landed. tl;dr: the update_dhcp_opts vifs parameter changed form, as seen here: https://github.com/openstack/ironic/commit/e5c5ddbdc8b015221b2656270a2f3f21414a055f#diff-9d3fa5de7cff99fe2d9522ed98108b91L77 We try not to break this interface, however it seemed necessary in this case, so we apologize for this. Do note that this is not advertised as a stable API and is subject to change; we'll continue to send emails when this happens in the future. // jim