Contao is an Open Source Content Management Framework developed by Leo Feyer
and distributed under the LGPL license (see GPL.txt and LGPL.txt for more
information).  It was formerly known as TYPOlight Open Source CMS.

Its open architecture allows everybody to extend the system to fit his
needs. Contao specializes in accessible websites and is accessbile
itself (front end and back end), rendering valid HTML5 or XHTML pages.

This is version 3.5 stable, LTS (Long Term Support) release.