--- upgrade: - | Neutron Linux bridge and Open vSwitch Agents config has been split out into linuxbridge_agent.ini and openvswitch_agent.ini respectively. Please move your custom service config from ml2_conf.ini into those files. deprecations: - | Customizing Neutron Linux bridge and Open vSwitch Agents config via ml2_conf.ini is deprecated. The config has been split out for these agents into linuxbridge_agent.ini and openvswitch_agent.ini respectively. In this release (Ussuri) custom service config ml2_conf.ini overrides will still be used when merging configs - but that functionality will be removed in V release.