7 * The method `getListenerPriority($eventName, $listener)` has been added to the
8 `EventDispatcherInterface`.
9 * The methods `Event::setDispatcher()`, `Event::getDispatcher()`, `Event::setName()`
10 and `Event::getName()` have been removed.
11 The event dispatcher and the event name are passed to the listener call.
16 * added Debug\TraceableEventDispatcher (originally in HttpKernel)
17 * changed Debug\TraceableEventDispatcherInterface to extend EventDispatcherInterface
18 * added RegisterListenersPass (originally in HttpKernel)
23 * added TraceableEventDispatcherInterface
24 * added ContainerAwareEventDispatcher
25 * added a reference to the EventDispatcher on the Event
26 * added a reference to the Event name on the event
27 * added fluid interface to the dispatch() method which now returns the Event
29 * added GenericEvent event class
30 * added the possibility for subscribers to subscribe several times for the
32 * added ImmutableEventDispatcher