The PHP team released PHP 5.3.9 last week, the latest version of the 5.3 branch. It includes numerous bug fixes and several enhancements. The most important fix is the one that the added max_input_vars directive to prevent attacks based on hash collisions, a hot topic in the past weeks.

This version is already installed in all Shared Hosting servers with PHP 5.3 and is available to all VPS customers. If your VPS is using our RPM or Deb package repository, you can simple upgrade PHP by running:

# CentOS

$ yum upgrade php53-*

# Ubuntu

$ apt-get upgrade php53-*

If your VPS is not using our repository, and you want to switch, take a look at this Knowledge Base articles:

If you are using a PHP installation compiled from source, you can follow these instructions to upgrade PHP:

 

As always, if you have any questions, please contact Customer Support.