Assuming you are running 13.04 currently then you'll have a 3.8 kernel. 13.10 has a 3.11 kernel so you also get:

(3.11) http://kernelnewbies.org/Linux_3.11 (3.10)http://kernelnewbies.org/Linux_3.10 (3.9) http://kernelnewbies.org/Linux_3.9