Update Backtrack 5R2 to 5R3

How to upgrade from BT 5r2 to BT 5r3 w/o reinstalling from scratch:

http://www.backtrack-linux.org/backtrack/upgrade-from-backtrack-5-r2-to-backtrack-5-r3/

… and a list of new programs in 5r3:

 http://cyberarms.wordpress.com/2012/08/15/backtrack-5-r3-list-of-some-of-the-new-tools-and-programs/