Updated: July 9, 2020 (February 8, 2010)

Past ISA Server Versions

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This chart outlines life cycle support dates as well as initial release and service pack histories for recent versions of Internet Security and Acceleration Server (now named Forefront Threat Management Gateway).

Version	Most Recent Service Pack	Mainstream Support Ends	Release History
ISA Server 2000	SP2: May 20, 2004	Ended Apr. 11, 2006; Extended support ends Apr. 12, 2011	Released: Feb. 2001 SP1: Feb. 18, 2002 Feature Pack 1: Jan. 2003
ISA Server 2004 Standard Edition	SP3: May 1, 2007	Ended Oct. 13, 2009; Extended support ends Oct. 14, 2014	Released: Sept. 2004 SP1: Mar. 11, 2005 SP2: Jan. 31, 2006
ISA Server 2004 Enterprise Edition	SP3: May 1, 2007	Apr. 13, 2010	Released: Mar. 2005 SP2: Jan. 2006
ISA Server 2006	SP1: July 2, 2008	Jan. 10, 2012	Released: Oct. 17, 2006

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