CHANGELOG

5.4

• Allow #[AsEventListener] attribute on methods

5.3

• Add #[AsEventListener] attribute for declaring listeners on PHP 8

5.1.0

• The LegacyEventDispatcherProxy class has been deprecated.
• Added an optional dispatcher attribute to the listener and subscriber tags in RegisterListenerPass.

5.0.0

• The signature of the EventDispatcherInterface::dispatch() method has been changed to dispatch($event, string $eventName = null): object.
• The Event class has been removed in favor of Symfony\Contracts\EventDispatcher\Event.
• The TraceableEventDispatcherInterface has been removed.
• The WrappedListener class is now final.

4.4.0

• AddEventAliasesPass has been added, allowing applications and bundles to extend the event alias mapping used by RegisterListenersPass.
• Made the event attribute of the kernel.event_listener tag optional for FQCN events.

4.3.0

• The signature of the EventDispatcherInterface::dispatch() method should be updated to dispatch($event, string $eventName = null), not doing so is deprecated
• deprecated the Event class, use Symfony\Contracts\EventDispatcher\Event instead

4.1.0

• added support for invokable event listeners tagged with kernel.event_listener by default
• The TraceableEventDispatcher::getOrphanedEvents() method has been added.
• The TraceableEventDispatcherInterface has been deprecated.

4.0.0

• removed the ContainerAwareEventDispatcher class
• added the reset() method to the TraceableEventDispatcherInterface

3.4.0

• Implementing TraceableEventDispatcherInterface without the reset() method has been deprecated.

3.3.0

• The ContainerAwareEventDispatcher class has been deprecated. Use EventDispatcher with closure factories instead.

3.0.0

• The method getListenerPriority($eventName, $listener) has been added to the EventDispatcherInterface.
• The methods Event::setDispatcher(), Event::getDispatcher(), Event::setName() and Event::getName() have been removed. The event dispatcher and the event name are passed to the listener call.

2.5.0

• added Debug\TraceableEventDispatcher (originally in HttpKernel)
• changed Debug\TraceableEventDispatcherInterface to extend EventDispatcherInterface
• added RegisterListenersPass (originally in HttpKernel)

2.1.0

• added TraceableEventDispatcherInterface
• added ContainerAwareEventDispatcher
• added a reference to the EventDispatcher on the Event
• added a reference to the Event name on the event
• added fluid interface to the dispatch() method which now returns the Event object
• added GenericEvent event class
• added the possibility for subscribers to subscribe several times for the same event
• added ImmutableEventDispatcher