After recent testing, we will be updating PHP to the latest version today. The previous revision was 5.2.10, and we're moving to 5.2.11. The update includes some bugfixes and minor security fixes. We are also enabling the JSON module in this update.
Detailed information about the 5.2.11 release is here if you are interested in the nitty-gritty: http://www.php.net/releases/5_2_11.php
If you experience any problems you think might be related to this, please email firstname.lastname@example.org