Alexander Netkachev has a quick announcement for users of the Zend Framework posted to his blog today:

This week we have a few important news from ZF team. First, the 0.8.0 release is ready and, as usual, you can download it from Zend's site. [...] Thanks to Vanne, we now have PDF version of Zend Framework documentation

He also mentions another guide aimed at helping you bring your Zend Framework application up to date (with the newer versions of the Zend_Controller.