History of OS/400

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The operating system, like the hardware of the midrange family, has changed significantly since its release on August 26, 1988 as OS/400 Release 1. The latest version is known officially as "IBM i 7.4" and was released to general availability on June 21, 2019.

Predecessors

LPPs

VersionRelease LPP
7.4 5770-SS1
7.3 5770-SS1
7.2 5770-SS1
7.1 5770-SS1
V6R1 5761-SS1
V5R4 5722-SS1
V5R3
V5R2[1]
V5R1[1]
V4R5 5769-SS1
V4R4
V4R3
V4R2
V4R1
V3R7 5716-SS1
V3R2 5763-SS1[2]
V3R1
V2R3 5738-SS1[3]
V2R2
V2R1M1
V2R1M0
V1 5728-SS1[4]

Release history and life cycle

Release Announce
date 		GA
date 		Announce
end of
marketing 		Effective
end of
marketing 		End of
program
support 		Program
support
extension
available
Rel 1 06/21/1988 08/26/1988
R01M00
aka V1R1M0
R01M01
aka V1R1M1
R02M00
aka V1R2M0 		06/21/1988 [5] 11/25/1988
R03M00
aka V1R3M0
V2R1 04/22/1991 05/24/1991 03/12/1993 06/30/1994
V2R1.1
aka V2R1M1 		04/22/1991 03/06/1992 03/12/1993 06/30/1994
V2R2 02/18/1992 09/18/1992 09/16/1994 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
aka V3R0M5 		05/03/1994 06/03/1994 02/11/1997 05/16/1997 05/31/1997
V3R1 05/03/1994
06/04/1995[2] 		11/25/1994
06/30/1995[2] 		02/11/1997 05/16/1997[2] 10/31/1998[2]
V3R2 06/04/1996[2] 06/21/1996[2] 02/10/1998 02/25/2000[2] 05/31/2000[2]
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
V5R2 06/04/2002 08/30/2002 02/08/2005 10/01/2005 04/30/2007
V5R3 05/04/2004 06/11/2004 02/06/2007 01/04/2008 04/30/2009
V5R4 01/31/2006 02/14/2006 01/27/2009[6] 05/27/2011[7] 09/30/2013 09/30/2016
6.1
aka V6R1 		01/29/2008 03/21/2008 09/30/2015 09/30/2018
7.1
aka V7R1 		04/13/2010 04/23/2010 04/18/2018
7.2
aka V7R2 		04/28/2014 05/02/2014
7.3
 04/15/2016
7.3
 06/21/2019
Release Announce
date 		GA
date 		Announce
end of
marketing 		Effective
end of
marketing 		End of
program
support 		Program
support
extension
available

Current releases

Previous release support

Values for TGTRLS parameter [9]

Installed
release 		*CURRENT *PRV Other valid values
V7R3 V7R3M0 V7R2M0 V7R1M0
V7R2 V7R2M0 V7R1M0 V6R1M0
V7R1 V7R1M0 V6R1M0 V5R4M0
V6R1 V6R1M0 V5R4M0 V5R3M0
V5R4 [10] V5R4M0 V5R3M0 V5R2M0
V5R3 V5R3M0 V5R2M0 V5R1M0
V5R2 V5R2M0 V5R1M0 V4R5M0
V5R1 V5R1M0 V4R5M0 V4R4M0
V4R5 V4R5M0 V4R4M0 V4R3M0 V4R2M0 V3R2M0
V4R4 V4R4M0 V4R3M0 V4R2M0 V3R2M0
V4R3 V4R3M0 V4R2M0 V4R1M0 V3R7M0 V3R2M0
V4R2 V4R2M0 V4R1M0 V4R1M4 V3R7M0 V3R2M0

iSeries - AS/400 RISC Model to OS Level Mapping

  • Source: [11]15:22, 13 April 2010 (UTC)
 Power and System i model to operating system level mapping
Type Model
V3
R6
V3
R7
V4
R1
V4
R2
V4
R3
V4
R4
V4
R5
V5
R1
V5
R2
V5
R3
V5
R4
6.1
7.1
9401 150
 
x
x
x
x
x
x
x
x
 
 
 
 
9406 170
 
 
 
x
x
x
x
x
x
x
 
 
 
9406 250
 
 
 
 
 
 
x
x
x
x
 
 
 
9406 270
 
 
 
 
 
 
x
x
x
x
x
 
 
9402 400
x
x
x
x
x
x
x
x
 
 
 
 
 
9402 436
 
x
x
x
x
x
x
x
 
 
 
 
 
9406 500
x
x
x
x
x
x
x
x
 
 
 
 
 
9402 40S
x
x
x
x
x
x
x
x
 
 
 
 
 
9406 50S
x
x
x
x
x
x
x
x
 
 
 
 
 
9406 510
x
x
x
x
x
x
x
x
 
 
 
 
 
9407 515
 
 
 
 
 
 
 
 
 
 
x
x
x
9407-M15 Power 520
 
 
 
 
 
 
 
 
 
 
x1
x
x
9405 520
 
 
 
 
 
 
 
 
 
x
x
x
x
9406 520
 
 
 
 
 
 
 
 
 
x
x
x
x
9408-M25 Power 520
 
 
 
 
 
 
 
 
 
 
x1
x
x
9406 525
 
 
 
 
 
 
 
 
 
 
x
x
x
9406 530
x
x
x
x
x
x
x
x
 
 
 
 
 
9406 53S
x
x
x
x
x
x
x
x
 
 
 
 
 
7998-60X JS12 Blade
 
 
 
 
 
 
 
 
 
 
 
x
x
7998-61X JS22 Blade
 
 
 
 
 
 
 
 
 
 
 
x
x
8203-E4A Power 520
 
 
 
 
 
 
 
 
 
 
x1
x
x
8204-E8A w/ 3.5GHz or 4.2GHz processors Power 550
 
 
 
 
 
 
 
 
 
 
x1
x
x
8204-E8A w/ 5.0GHz processor Power 550
 
 
 
 
 
 
 
 
 
 
 
x
x
8233-E8B Power 750
 
 
 
 
 
 
 
 
 
 
 
x2
x
8234-EMA Power 560
 
 
 
 
 
 
 
 
 
 
 
x
x
9406 550
 
 
 
 
 
 
 
 
 
x
x
x
x
9409-M50 Power 550
 
 
 
 
 
 
 
 
 
 
x1
x
x
9406 570
 
 
 
 
 
 
 
 
 
x
x
x
x
9406-MMA 570
 
 
 
 
 
 
 
 
 
 
x1
x
x
9117-MMA Power 570
 
 
 
 
 
 
 
 
 
 
x1
x
x
9117-MMB Power 770
 
 
 
 
 
 
 
 
 
 
 
x2
x
9179-MHB Power 780
 
 
 
 
 
 
 
 
 
 
 
x2
x
9406 595
 
 
 
 
 
 
 
 
 
x
x
x
x
9119-FHA Power 595
 
 
 
 
 
 
 
 
 
 
x1
x
x
9406 600
 
 
x
x
x
x
x
x
x
 
 
 
 
9406 620
 
 
x
x
x
x
x
x
x
 
 
 
 
9406 640
 
 
x
x
x
x
x
x
x
 
 
 
 
9406 650
 
 
x
x
x
x
x
x
x
 
 
 
 
9406 720
 
 
 
 
x
x
x
x
x
x
 
 
 
9406 730
 
 
 
 
x
x
x
x
x
x
 
 
 
9406 740
 
 
 
 
x
x
x
x
x
x
 
 
 
9406 800
 
 
 
 
 
 
 
 
x
x
x
x
 
9406 810
 
 
 
 
 
 
 
 
x
x
x
x
 
9406 820
 
 
 
 
 
 
x
x
x
x
x
 
 
9406 825
 
 
 
 
 
 
 
 
x
x
x
x
 
9406 830
 
 
 
 
 
 
x
x
x
x
x
 
 
9406 840
 
 
 
 
 
 
x
x
x
x
x
 
 
9406 870
 
 
 
 
 
 
 
 
x
x
x
x
 
9406 890
 
 
 
 
 
 
 
 
x
x
x
x
 
9406 S10
 
 
x
x
x
x
x
x
x
 
 
 
 
9406 S20
 
 
x
x
x
x
x
x
x
 
 
 
 
9406 S30
 
 
x
x
x
x
x
x
x
 
 
 
 
9406 S40
 
 
x
x
x
x
x
x
x
 
 
 
 
9406 SB1
 
 
x
x
x
x
x
x
x
 
 
 
 
9406 SB2
 
 
 
 
 
 
x
x
x
x
x
 
 
9406 SB3
 
 
 
 
 
 
x
x
x
x
x
 
 

1 VxRxM5 of the Licensed Internal Code is required on the indicated models. Other models which support the release can utilize VxRxM5 LIC in place of VxRxM0 LIC, but it will not provide any functional advantage.

2 Release 6.1.1 of the Licensed Internal Code is required.

OS/400, i5/OS and IBM i upgrade paths

Source: [12] [13] 15:41, 13 April 2010 (UTC)

To:
From: 		V3R6 V3R7 V4R1 V4R2 V4R3 V4R4 V4R5 V5R1 V5R2 V5R3 V5R4 V6R1 7.1 7.2 7.3
V3R2 Yes Yes Yes
V3R6 Yes Yes
V3R7 Yes Yes Yes
V4R1 Yes Yes Yes Yes
V4R2 Yes Yes Yes
V4R3 Yes Yes
V4R4 Yes Yes
V4R5 Yes Yes
V5R1 Yes Yes
V5R2 Yes Yes
V5R3 Yes Yes
V5R4 Yes Yes
V6R1 Yes Yes
7.1 Yes Yes
7.2 Yes

See also

References

  1. ↑ 1.0 1.1 5722-SS1 IBM Operating System/400 (OS/400)
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 IBM Operating System/400 (OS/400) Version 3
  3. ↑ 5738-SS1 IBM Operating System/400 V2
  4. ↑ 5728-SS1 IBM OPERATING SYSTEM/400
  5. ↑ Subject: Re: OS Release dates since V3R7 from MIDRANGE-L
  6. ↑ [1] Software withdrawal: i5/OS V5R4 and selected IBM System i programs -- Replacements available IBM Europe, Middle East, and Africa Withdrawal Announcement ZP09-0012 and ENUSZP09-0012.PDF that 5722-SS1 IBM i5/OS has been withdrawn from marketing.
  7. ↑ Revised availability: IBM i5/OS V5R4 and selected IBM System i programs "V5R4 .... is extended from January 7, 2011 to May 27, 2011."
  8. ↑ Release life cycle
  9. ↑ PDF of IBM eServer iSeries Pocket Handbook: Version 5 Release 2 January 2003 (sg249406) at IBM Redbooks
  10. ↑ PDF Table 58 in Chapter 14 of V5R4 Backup and Recovery Guide SC41-5304-08
  11. ↑ http://www-947.ibm.com/systems/support/i/planning/upgrade/osmapping.html
  12. ↑ PDF of IBM System i Overview: Models 515, 525, 595, and More (redp5052) at IBM Redpapers 12.3 i5/OS and OS/400 Upgrade Paths Publish Date 19 December 2007
  13. ↑ "Supported Upgrade Paths" IBM Reference #: 86256BAE0043A5E7

External links

Categories

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