PHP has changed a lot in the last few years. It is a faster and better language. With the improvement of the language, almost all the major frameworks also improved, including Symfony. In this article, I write about the changes and improvements included in Symfony 4. Symfony 4 introduces a much better developer experience with a new way of building web applications. It can be a good fit for small micro-apps or services, but it can also be a good fit for huge monolithic applications.