# Symfony history

* Symfony 2:
  * bundles system
  * dependency injection container
  * twig
  * console
* Symfony 3:
  * symfony flex
  * psr-3: logger interface
  * workflow
* Symfony 4:
  * focus on microservice, console applications and apis
  * autowiring system
  * symfony messenger
  * httpclient
* Symfony 5:
  * symfony notifier (sms, slack, email, push…)
* Symfony 6:
  * attribute based configuration