Castle CMS, an open source distribution of Plone with enhanced UI and integrated services for large scale sites. Castle CMS is an enhanced distribution of Plone, released under GPL2, for large sites and security-conscious organizations. Castle CMS is created and maintained by Wildcard Corp., provider of cybersecurity and open source web site solutions. Find out about Castle CMS's content editing enhancements that make it easier to create and manage large amounts of content and its many integrated services for improved search, archiving, and collaboration. Learn about Castle CMS's upcoming features and release roadmap, and how Castle CMS is in turn affecting the Plone roadmap.