Today the PHP development team released new versions of PHP 5.3.22 and 5.4.12. These releases fix over 10 bugs. It includes a bugfix that could heavily affect applications relaying on setters/getters commonly used on ZF1 and other libraries, so if you are one of these users we encourage to upgrade ASAP.
Just a few days ago, Zend released open source their ZendOptimizer+ opcode caching and optimization extension for PHP. We have created CentOS 6, Ubuntu 12, and Debian 6 packages for PHP 5.3 and 5.4.
Package names for Ubuntu & Debian:
Package names forCentOS:
We will update these packages as new versions come out. Please use this at your own risk!