Following some issues with the Phing and Propel subversion repositories for Symfony, Fabien Potencier has made a few changes to aid in their future stability.
The Phing and Propel Subversion repositories have suffered from long downtime periods quite often recently (last one was today). It is quite annoying as when it happens, you cannot easily update your symfony repositories, let alone the checkout of a symfony branch. To make things worse, the Doctrine repository also had some problems recently. A lot of symfony users are quite upset by the situation, myself being the first one.