Read the official Contao announcements.
TYPOlight 2.6.0 is available
by Leo Feyer – Announcements
TYPOlight version 2.6.0 is available. The minor release fixes some bugs from the two beta versions and includes a few new features like an insert tag for IP addresses, improved folder protection or the "upload and go back" button. In addition, the style sheets have been updated to work around the new weird Firefox 3 checkbox margin.
Download this release from github.com.