See: http://www.symfony-project.org/blog/2008/05/09/symfony-1-0-15-is-out
After the release of PHP 5.2.6 here is symfony 1.0.15. This revision fixes a regression in php5.2.6 and we do recommend you to upgrade if you plan to upgrade your PHP. Symfony 1.1 is not impacted by this problem.
Nice turnaround by the Symfony devs! Makes you wonder about the PHP team’s quality control, though..

I read Francois’ most recent view on Symfony’s verbosity and was surprised at his dissent given his core involvement with the project. I can definitely see where he is coming from, as it can’t be easy to write easy-to-digest documentation for such a complex beast. I’m wondering if it is worthwhile upgrading as I’m quite [...]