symfony/UPGRADE-6.0.md

UPGRADE FROM 5.x to 6.0

EventDispatcher

• Removed LegacyEventDispatcherProxy. Use the event dispatcher without the proxy.

FrameworkBundle

• MicroKernelTrait::configureRoutes() is now always called with a RoutingConfigurator
• The "framework.router.utf8" configuration option defaults to true

HttpFoundation

• Removed Response::create(), JsonResponse::create(), RedirectResponse::create(), and StreamedResponse::create() methods (use __construct() instead)

Routing

• Removed RouteCollectionBuilder.