Updated: July 9, 2020 (February 26, 2007)

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 ISA Server.

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

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