SSE Symantec Endpoint Protection 12.1 (August 2011) SSE+ Symantec Endpoint Protection 12.1 (September 2012) SSE Symantec Protection Suite Small Business Edition and Enterprise Edition (October 2012) SSE+ Symantec Endpoint Protection Small Business Edition (April 2014) SSE Symantec Endpoint Protection Small Business Edition (April 2014) SSE Symantec Enterprise Vault 11 SSE+ Symantec Enterprise Vault 11