STS Symantec Enterprise Vault 10.0 for Exchange STS Symantec Enterprise Vault 9.0 for Exchange ASC Archiving and eDiscovery Specialization (November 2010) SSE Clearwell eDiscovery Platform (February 2012) SSE Symantec Enterprise Vault 10 (March 2012) SSE+ Clearwell eDiscovery Platform (March 2012) SSE+ Symantec Enterprise Vault 10 (April 2012) STS Clearwell eDiscovery Platform 7.x SSE Clearwell eDiscovery Platform from Symantec (May 2013) SSE Symantec Enterprise Vault 11 SSE+ Symantec Enterprise Vault 11