Symfony 4 has been released a month ago; the latest major version of symfony 1 was released 8 years ago. Its end of life was reached 5 years ago. Why a blog post about symfony 1 then? Because SensioLabs is still maintaining the symfony 1 infrastructure: mainly the subversion server and the plugin platform. I think it's time to move on and sunset the platform. We will shut down the Symfony 1 infras