router.subscribe is now available and as a result listeners plugin is no longer needed by react-router5. This will be deprecated in a near future.toState and fromState arguments.addNodeListener(name, fn) will register a listener which will be invoked when the specified route node is the transition node of a route change, i.e. the intersection between deactivated and activated segments.addListener(fn) will be triggered on any route change, including route reloads (toState will be equal to fromState). You can remove a previously added listener by using removeListener(fn).addRouteListener(name, fn) will register a listener which will be triggered when the router is navigating to the supplied route name.