title: Downgrading Symfony2 from 2.4.1 to 2.3.9
body: <p>I have started an application development on <strong>Symfony2.4.1</strong>. But later decided to go back to <strong>Symfony2.3.9</strong> as it has <strong>long term support</strong>. Is there any procedure to downgrade (Found no luck on Google), or I have to download 2.3.9 and push all my code there?</p>