eZ
Systems, the world’s leading Open Source Enterprise
Content Management (ECM) company, today announced the
immediate availability of eZ Publish 4.0, the latest version of its
award-winning, enterprise-grade flagship ECM product. eZ Publish 4.0
features complete PHP 5-compatability, thereby empowering users with
PHP 5’s entire range of functionality while maintaining a smooth
upgrade path for existing eZ Publish Web sites.

For more info, please read the released news