Upgrade planning

Operating System Release information

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For information on supported releases and subsequent upgrades to newer releases, see IBM i, i5/OS and OS/400 Release support.

*Release life cycle*
Release	Announce date*	GA date*	Announce End of Marketing date*	Effective End of Marketing date*	End of Program Support*	Program Support Extension Available*
Rel 1	06/21/1988	08/26/1988
V2R1	04/22/1991	05/24/1991		03/12/1993	06/30/1994
V2R1.1	04/22/1991	03/06/1992		03/12/1993	06/30/1994
V2R2	02/18/1992	09/18/1992		09/06/1994	03/31/1995
V2R3	02/16/1993	12/17/1993		12/29/1995	05/31/1996
R7.5 SSP	02/20/1996	03/08/1996	02/09/1999	02/25/2000	05/31/2000
V3R0.5	05/03/1994	06/03/1994	02/11/1997	05/16/1997	05/31/1997
V3R1	05/03/1994	11/25/1994	02/11/1997	05/16/1997	10/31/1998
V3R2	06/04/1996	06/21/1996	02/10/1998	02/25/2000	05/31/2000
V3R6	06/21/1995	12/22/1995	08/19/1997	11/21/1997	10/31/1998
V3R7	09/03/1996	11/08/1996	09/01/1998	12/01/1998	06/30/1999
V4R1	08/19/1997	08/29/1997	02/09/1999	02/25/2000	05/31/2000
V4R2	02/10/1998	02/27/1998	02/09/1999	02/25/2000	05/31/2000	01/31/2001
V4R3	09/01/1998	09/11/1998	02/15/2000	12/29/2000	01/31/2001
V4R4	02/09/1999	05/21/1999	02/13/2001	05/31/2001	05/31/2001	11/30/2001
V4R5	05/22/2000	07/28/2000	02/12/2002	07/02/2002	07/31/2002	12/31/2002
V5R1	04/23/2001	05/25/2001	07/29/2003	11/21/2003	09/30/2005	Note 3
V5R2	06/04/2002	08/30/2002	02/08/2005	10/01/2005	04/30/2007	Note 3
V5R3	05/04/2004	06/11/2004	02/06/2007	01/04/2008	04/30/2009 Note 2	Note 3
V5R4	01/31/2006	02/14/2006	01/27/2009	01/07/2011	Notes 1, 2
V6R1	01/29/2008	03/21/2008			Note 1

* All dates are shown in MM/DD/YYYY format.

Note 1: End of program support date will be announced with at least 12 months notice prior to the effective termination date.

Note 2: Includes both Machine Code Level V5RxM0 and V5RxM5.

Note 3: IBM Service Extension Offering for i5/OS and OS/400 is available for U.S. Customers.