Slightly behind schedule we released the next round of maintenance versions of Doctrine DBAL (2.0.5) and ORM (2.0.5) today. It also includes a Security fix for DBAL in combination with PDO MySQL and charsets that was closed in PHP 5.3.6. If you are using 5.3.6, you should now use the "charset" option in DriverManager::getConnection() instead of the MysqlSessionInit listener.
You can grab the packages from the download page or our Github repository.
Please report any problems to the Jira Bugtracker.