for your Information
Symantec Endpoint Protection (SEP) 11.x will reach End of Limited Support (EOLS) on January 5, 2014 and End of Support Life (EOSL) on January 5, 2015. This includes all maintenance packs and patches. Symantec recommends that all customers upgrade to the latest version of Symantec Endpoint Protection, 12.1.x.
There is no cost to upgrade for customers with a current maintenance contract
FAQ: Upgrading Symantec Endpoint Protection 11.x to version 12.1.x