The following matrix illustrates the release history for the Cisco Secure Access Control Server. Please refer to additional information on specific versions and options in the left navigation.
| Product | First Sales Date | Final Sales Date | End of TAC Support/End of Life |
| Cisco Secure Access Control Server 2.6 | January 16, 2001 | December 2001 | December 2004 |
| Cisco Secure Access Control Server 3.0 | December 13, 2001 | September 2002 | September 2005 |
| Cisco Secure Access Control Server 3.1 | September 24, 2002 | June 2003 | June 2006 |
| Cisco Secure Access Control Server 3.2 | June 16, 2003 | June 2004 | June 2007 |
| Cisco Secure Access Control Server 3.3 | June 24, 2004 | Aug 29, 2006 | Aug 28, 2009 |
| Cisco Secure Access Control Server 4.0 | November 28, 2005 | July 27, 2007 | July 26, 2010 |
| Cisco Secure Access Control Server 4.1 | December 11, 2006 | November 21, 2008 | November 21, 2011 |
| Cisco Secure Access Control Server 4.2 | March 13, 2008 | Current | Current |