title Symfony Architecture - Symfony Certification Preparation List Back to index Symfony Architecture Symfony Flex Symfony 4.0 Documentation - symfony.com Using Symfony Flex to Manage Symfony Applications - symfony.com License Symfony License - symfony.com Components Symfony Components - symfony.com Bridges What are symfony bridges, bundles and vendor? - stackoverflow.com Configuration The Config Component - symfony.com Code organization Organizing Your Business Logic - symfony.com Request handling Symfony and HTTP Fundamentals - symfony.com Exception handling How to Customize Error Pages - symfony.com Event dispatcher and kernel events Symfony Framework Events - symfony.com The HttpKernel Component - symfony.com The EventDispatcher Component - symfony.com Official best practices Symfony Best Practices - symfony.com Release management The Release Process - symfony.com Backward compatibility promise Our Backwards Compatibility Promise - symfony.com Deprecations best practices Deprecations - symfony.com