Read the official Contao announcements.
TYPOlight 2.0beta-rc3 is available
by Leo Feyer – Announcements
TYPOlight Open Source CMS 2.0beta-rc3 is available for download. It is the last beta release before version 2.0 final and a lot of things have been added or improved. As rc3 also contains some important bug fixes, you are strongly recommended to update. Again, please delete all TinyMCE files as it has been updated to version 2.0.8. Take a look at the changelog to see what has been done.
Download this release from github.com.