Upgrade from 2.x to 3.0

Changes

The minimum supported PHP version is now 7.4
The minimum supported Symfony version is now 4.4
The minimum supported version of GosPubSubRouterBundle is now 2.2
Renamed Gos\Bundle\WebSocketBundle\DataCollector\PusherDecorator to Gos\Bundle\WebSocketBundle\Pusher\DataCollectingPusherDecorator
Renamed Gos\Bundle\WebSocketBundle\EventListener\KernelTerminateListener (service ID gos_web_socket.event_listener.kernel_terminate) to Gos\Bundle\WebSocketBundle\EventListener\ClosePusherConnectionsListener (service ID gos_web_socket.event_listener.close_pusher_connections)
Made event classes final
The methods of Gos\Bundle\WebSocketBundle\Client\ClientManipulatorInterface now return an array containing instances of Gos\Bundle\WebSocketBundle\Client\ClientConnection, accessing the array properties is supported however deprecated and will be removed in 4.0.
The Gos\Bundle\WebSocketBundle\Event\ClientEvent and Gos\Bundle\WebSocketBundle\Event\PushHandlerEvent classes are now abstract

Removed deprecated service IDs
Removed deprecated Gos\Bundle\WebSocketBundle\Event\Events class, use Gos\Bundle\WebSocketBundle\GosWebSocketEvents instead
Removed deprecated Gos\Bundle\WebSocketBundle\Client\ClientManipulatorInterface::findByUsername() method, use Gos\Bundle\WebSocketBundle\Client\ClientManipulatorInterface::findAllByUsername() instead
Removed deprecated Gos\Bundle\WebSocketBundle\Client\Driver\PredisDriver class, use another supported storage driver
Removed deprecated Gos\Bundle\WebSocketBundle\RPC\RpcResponse class, return responses from RPC handlers as arrays or implement a custom dispatcher with support for DTOs
Removed Gos\Bundle\WebSocketBundle\Event\ClientEvent::getType(), the $type argument from the class' constructor, and the type constants in the class; each event type now has a distinct subclass
Removed deprecated Gos\Bundle\WebSocketBundle\Event\ServerEvent class, use Gos\Bundle\WebSocketBundle\Event\ServerLaunchedEvent instead