Symfony 2.0.21 and 2.1.6 have just been released.

We have discovered that under some circumstancies, the steps described yesterday to protect your code were not possible. These new versions address these problems.

Also, as a new setting (trusted_proxies) has been added to both Symfony 2.0 and 2.1, you might have an error the first time you clear the cache via the cache:clear command. You can either clear the cache manually or run the command a second time.

The deps files for Symfony 2.0.21 can be downloaded here: