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Symfony DI v4.1.0 Release Notes

    • added support for variadics in named arguments
    • added PSR-11 ContainerBagInterface and its ContainerBag implementation to access parameters as-a-service
    • added support for service's decorators autowiring
    • deprecated the TypedReference::canBeAutoregistered() and TypedReference::getRequiringClass() methods
    • environment variables are validated when used in extension configuration
    • deprecated support for auto-discovered extension configuration class which does not implement ConfigurationInterface