You are browsing the Symfony 4.3 documentation, which changes significantly from Symfony 3.x. If your app doesn't use Symfony 4.3 yet, browse the Symfony 3.4 documentation.
Reading the contributing is already a great way to get started on becoming a Symfony contributor. However, sometimes it might still seem overwhelming - contributing can be complex! For this purpose we created a dedicated Symfony Slack channel called #mentoring to connect new contributors to long-time contributors. This is a great way to get one-on-one advice on the entire process. These long-time contributors do really want to help new contributors - so feel free to ask anything!
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