June 10, 2013 Fabien Potencier

Since the release of Symfony 2.0 almost two years ago, three new versions of Symfony have been released: 2.1, 2.2, and more recently 2.3. So, which version should you use?

New Projects¶ If you are starting a new project, use Symfony 2.3. It is the most recent stable release so far, and one that is going to be maintained for the next three years (our first Long-Term Support release).

Current Projects¶ Symfony 2.0 is not maintained anymore since the end of March 2013 and Symfony 2.1 is not maintained anymore since the end of May 2013. So, if you are still using these versions for some of your projects, you should upgrade soon. Of course, there is no rush if it works for you, but you must be aware that bugs won't be fixed anymore. If you are using Symfony 2.2, which is a standard release, it's going to be maintained until the end of November 2013, so you have time to upgrade to 2.3.

Security Issues¶ Recently, we've been thinking about how to deal with security issues a bit differently than regular bugs as far as the maintenance is concerned. So, today, I'm happy to announce that standard releases will enjoy an additional 6 months period for security issue fixes and LTS releases will get an additional year of maintenance for security issues. That should give you plenty of time to plan the upgrade from one version to the next one.