Download
http://www.joomlart.com/forums/downloads.php?do=file&id=3273

The RC2 bring you 2 intersting new & major features

+ Megamenu: Support bootstrap awesome icons for menu item. Now you can add icon class for the any menu item
+ Add option "Optimize CSS" to join and minify CSS. While handling a complex site with many extensions, the number of CSS file can be PITA for you (espcially for IE), this option will reduce the number of CSS files

There are more than 35+ bug fixes and improvements for this release as well. For full changelog, please visit our Changlog page on Github
https://github.com/t3framework/t3/wiki/Changelog