Hidden CMS version 1 was built in 2007 and relied on retrieving pages from a database.

Version 2 was built in 2009 and designed to be scaleable, more efficient, easier to use and easily upgradeable. This version added such features as static HTML page generation, a plug-in framework, and could be easily customised to fit any website.

Version 3 (called Arnold) appeared in 2010, and included a brand new interface, a complete code redesign plus a load of extra features like page snapshots, new file manager and Facebook/Twitter integration.

Version 4 (called Francis) was finished in July 2011.  This latest built has a brand new interface design, it's had a major tidy up to improve consistency, plus lots of tweaks to make it more pleasant to use.  Have a look at the changelog for more detail on the version history of Hidden CMS.

Hidden CMS has now reached version 4. This release has had a major re-design, and includes:

• A new user interface, designed for all browser and screen resolution sizes
• A mobile & tablet version of the administration interface
• Switchable themes, all completely customisable for your company
• Customisable user permissions & groups
• Lots of tweaks and improvements to the consistency of the interface
• ...plus much more

CK Editor (download it at www.ckeditor.com) - Editor available under the GPL Open Source License (http://www.gnu.org/licenses)
Colorbox - http://colorpowered.com/colorbox/
jQuery - http://www.jquery.com  
jQuery UI - http://www.jqueryui.com
Uploadify - http://www.uploadify.com/
the excellent Countdown Timer - http://keith-wood.name/countdown.html