The Xinc project has released the latest version of their application - 1.0:

The Xinc team are proud to announce the release of Xinc 1.0. Xinc is a free open source continuous integration tool written in PHP 5. It currently supports Subversion and Phing but is extensible to work with any version control or build tool. Xinc is released under an LGPL license.

You can find out more about this library on its new home on Google Code including documentation and two example projects to learn from. You can download this latest version here.