September 1969 Ken's New System
November 1971 Unix Time-Sharing System 1
June 1972 Unix Time-Sharing System 2
February 1973 Unix Time-Sharing System 3
November 1973 Unix Time-Sharing System 4
June 1974 Unix Time-Sharing System 5
Mid 1974 MERT PWB/UNIX
May 1975 Unix Time-Sharing System 6
May 1977 Mini UNIX
Mid 1977 RT1.0 TS1.0
July 1977 PWB/UNIX 1.0
March 1978 1BSD
Mid 1978 2BSD TS2.0
January 1979 Unix Time-Sharing System 7
May 1979 Unix 32V
Mid 1979 PWB/UNIX 2.0
Late 1979 3BSD
April 1980 2.79BSD
October 1980 4BSD
Mid 1981 TS3.0
July 1981 2.8BSD 4.1BSD
November 1981 UNIX System III
January 1982 2.8.1BSD
February 1982 SunOS 1.0
April 1982 4.1aBSD
Mid 1982 4.1bBSD
Septembrer 1982 2.8.2BSD
Late 1982 4.1cBSD
January 1983 UNIX System V
July 1983 2.9BSD
September 1983 4.2BSD
November 1983 2.9.1BSD
UNIX System V April 1984 SunOS 1.1 Release 2.0
February 1985 Unix Time-Sharing System 8
May 1985 SunOS 2.0
UNIX System V Mid 1985 Release 2.1
August 1985 2.9BSD-Seismo
February 1986 SunOS 3.0
June 1986 4.3BSD
UNIX System V Mid 1986 Release 3.0
September 1986 Unix Time-Sharing System 9 SunOS 3.2
UNIX System V Late 1986 Release 3.1
January 1987 Minix 1.1
April 1987 2.10BSD
UNIX System V Mid 1987 Plan 9 from Bell Labs Release 3.2
May 1988 Minix 1.2
June 1988 4.3BSD Tahoe
UNIX System V Mid 1988 SunOS 3.5 Release 4.0
August 1988 Minix 1.3b
September 1988 Minix 1.3c
November 1988 4.3BSD NET/1
January 1989 2.10.1BSD SunOS 4.0 Minix 1.4
May 1989 SunOS 4.0.3
June 1989 SunOS 4.0.3c
July 1989 SunOS 4.0.3 PSR_A
September 1989 SunOS 4.0.2
October 1989 Unix Time-Sharing System 10
November 1989 Minix 1.5
March 1990 SunOS 4.1 Minix 1.5.5
May 1990 SunOS 4.1 PSR_A Minix 1.5.10
June 1990 4.3BSD Reno
SunOS 4.1.1 November 1990 Solaris 1.0
SunOS 4.1.1B February 1991 Solaris 1.0
April 1991 SunOS 4.1e
June 1991 4.3BSD NET/2
SunOS 4.1.1.1 July 1991 Solaris 1.0
SunOS 4.1.1_U1 November 1991 Solaris 1.0
SunOS 4.1.2 December 1991 BSD/386 ALPHA Solaris 1.0.1
The IX Multilevel-Secure January 1992 UNIX System
February 1992 386BSD 0.0 2.11BSD
April 1992 BSD/386 0.3.1
June 1992 BSD/386 0.3.3
Plan 9 from Bell Labs Mid 1992 First Edition
July 1992 4.4BSD Alpha 386BSD 0.1 Solaris 2.0
SunOS 4.1.3 August 1992 Solaris 1.1
October 1992 BSD/386 0.9.3
November 1992 UnixWare 1.0
December 1992 BSD/386 0.9.4 Solaris 2.1
January 1993 2.11BSD Patch 100
March 1993 BSD/386 1.0
April 1993 NetBSD 0.8
May 1993 UnixWare 1.1 Solaris 2.2
June 1993 4.4BSD
SunOS 4.1.3B Mid 1993 Solaris 1.1B
August 1993 NetBSD 0.9
SunOS 4.1.3C November 1993 FreeBSD 1.0 Solaris 2.3 Solaris 1.1C
SunOS 4.1.3_U1A December 1993 Solaris 1.1.1A
SunOS 4.1.3_U1B February 1994 BSD/386 1.1 Solaris 1.1.1B
March 1994 4.4BSD Lite
Solaris 2.3 May 1994 FreeBSD 1.1 Edition II
June 1994 FreeBSD 1.1.5
Mid 1994 UnixWare 1.1.1
July 1994 FreeBSD 1.1.5.1
Solaris 2.3 August 1994 Hardware: 8/94
October 1994 NetBSD 1.0
SunOS 4.1.4 November 1994 FreeBSD 2.0 386BSD 1.0 Solaris 1.1.2
Solaris 2.4 December 1994 2.11BSD Patch 200 Hardware: 11/94
January 1995 BSD/OS 2.0 UnixWare 2.0
Plan 9 from Bell Labs Solaris 2.4 March 1995 Second Edition Hardware: 3/95
4.4BSD Lite June 1995 FreeBSD 2.0.5 BSD/OS 2.0.1 Release 2
November 1995 NetBSD 1.1 FreeBSD 2.1 Solaris 2.5 Minix 1.7.1
Solaris 2.5 January 1996 BSD/OS 2.1 Hardware: 1/96
February 1996 2.11BSD Patch 300 UnixWare 2.1
March 1996 Minix 1.7.2
April 1996 2.11BSD Patch 330 Inferno
May 1996 Solaris 2.5.1
July 1996 FreeBSD 2.1.5
September 1996 Minix 1.7.5
October 1996 NetBSD 1.2 OpenBSD 2.0 UnixWare 2.1.2 Minix 2.0
November 1996 2.11BSD Patch 335
December 1996 FreeBSD 2.1.6
February 1997 FreeBSD 2.1.7 BSD/OS 3.0
March 1997 FreeBSD 2.2
April 1997 FreeBSD 2.2.1
Solaris 2.5.1 May 1997 NetBSD 1.2.1 FreeBSD 2.2.2 Inferno 1.0 Hardware: 4/97
June 1997 OpenBSD 2.1
Mid 1997 Off++
Solaris 2.5.1 August 1997 Solaris 2.6 Hardware: 8/97
October 1997 FreeBSD 2.2.5
November 1997 Inferno 2.0
Solaris 2.5.1 December 1997 OpenBSD 2.2 Hardware: 11/97
January 1998 NetBSD 1.3 2.11BSD Patch 400
Solaris 2.6 March 1998 NetBSD 1.3.1 FreeBSD 2.2.6 BSD/OS 3.1 UnixWare 7 Hardware: 3/98
Solaris 2.6 May 1998 NetBSD 1.3.2 OpenBSD 2.3 Hardware: 5/98
July 1998 FreeBSD 2.2.7
August 1998 BSD/OS 4.0
September 1998 UnixWare 7.0.1
October 1998 FreeBSD 3.0 Solaris 7
November 1998 Inferno 2.2
December 1998 NetBSD 1.3.3 OpenBSD 2.4 FreeBSD 2.2.8 4.3BSD-Quasijarus0 Minix 2.0.2
February 1999 FreeBSD 3.1 UnixWare 7.1
March 1999 BSD/OS 4.0.1 Solaris 7 3/99
May 1999 NetBSD 1.4 FreeBSD 3.2 OpenBSD 2.5 Solaris 7 5/99
July 1999 Inferno 2.3
August 1999 NetBSD 1.4.1 Solaris 7 8/99
September 1999 FreeBSD 3.3
October 1999 4.3BSD-Quasijarus0a
November 1999 Solaris 7 11/99
December 1999 FreeBSD 3.4 OpenBSD 2.6 2.11BSD Patch 430 BSD/OS 4.1 UnixWare 7.1.1
January 2000 Solaris 8
March 2000 NetBSD 1.4.2 FreeBSD 4.0
April 2000 2.11BSD Patch 431
Plan 9 from Bell Labs June 2000 FreeBSD 3.5 OpenBSD 2.7 Solaris 8 6/00 Third Edition
July 2000 FreeBSD 4.1
September 2000 FreeBSD 4.1.1
October 2000 Solaris 8 10/00
November 2000 NetBSD 1.4.3 FreeBSD 4.2 BSD/OS 4.2
December 2000 NetBSD 1.5 OpenBSD 2.8
February 2001 Solaris 8 1/01
April 2001 FreeBSD 4.3
May 2001 Inferno Third Edition Solaris 8 4/01 Minix 2.0.3
June 2001 OpenBSD 2.9 Open UNIX 8
Plan B Mid 2001 First Edition
July 2001 NetBSD 1.5.1 Solaris 8 7/01
August 2001 Open UNIX 8 MP1
September 2001 NetBSD 1.5.2 FreeBSD 4.4
October 2001 Solaris 8 10/01
November 2001 Open UNIX 8 MP2
December 2001 OpenBSD 3.0
January 2002 FreeBSD 4.5
February 2002 Open UNIX 8 MP3 Solaris 8 2/02
March 2002 BSD/OS 4.3
Plan 9 from Bell Labs April 2002 Fourth Edition
May 2002 OpenBSD 3.1 Solaris 9
June 2002 FreeBSD 4.6
July 2002 NetBSD 1.5.3 Open UNIX 8 MP4
August 2002 FreeBSD 4.6.2
September 2002 NetBSD 1.6 Solaris 9 9/02
October 2002 FreeBSD 4.7
November 2002 OpenBSD 3.2
Solaris 8 December 2002 SCO UnixWare 7.1.3 Solaris 9 12/02 Hardware: 12/02
Inferno January 2003 FreeBSD 5.0 Fourth Edition
April 2003 NetBSD 1.6.1 FreeBSD 4.8 Solaris 9 4/03
Solaris 8 May 2003 OpenBSD 3.3 BSD/OS 5.0 Hardware: 5/03
June 2003 FreeBSD 5.1
Plan B Mid 2003 Third Edition
Solaris 8 July 2003 Hardware: 7/03
August 2003 Solaris 9 8/03
October 2003 FreeBSD 4.9 BSD/OS 5.1
November 2003 OpenBSD 3.4 Minix 2.0.4
December 2003 4.3BSD-Quasijarus0b Solaris 9 12/03
January 2004 FreeBSD 5.2
February 2004 FreeBSD 5.2.1 4.3BSD-Quasijarus0c Solaris 8 2/04
March 2004 NetBSD 1.6.2
June 2004 SCO UnixWare 7.1.4
November 2004 FreeBSD 5.3
December 2004 NetBSD 2.0
April 2004 OpenBSD 3.5 Solaris 9 4/04
May 2004 FreeBSD 4.10
July 2004 DragonFly BSD 1.0 Solaris 9 9/04
October 2004 OpenBSD 3.6
January 2005 FreeBSD 4.11 Solaris 10
February 2005 NetBSD 2.0.1
March 2005
April 2005 NetBSD 2.0.2 DragonFly BSD 1.2.0
May 2005 FreeBSD 5.4 OpenBSD 3.7
Plan B Mid 2005 Fourth Edition
August 2005 Solaris 9 9/05
October 2005 NetBSD 2.0.3 Minix 3.1.1
November 2005 NetBSD 2.1 FreeBSD 6.0 OpenBSD 3.8
December 2005 NetBSD 3.0 Solaris 10 1/06
January 2006 DragonFly BSD 1.4.0
March 2006
April 2006 DragonFly BSD 1.4.4 Minix 3.1.2
May 2006 FreeBSD 6.1 FreeBSD 5.5 OpenBSD 3.9 Minix 3.1.2a
June 2006 Solaris 10 6/06
The Octopus Mid 2006 First Edition
July 2006 NetBSD 3.0.1 DragonFly BSD 1.6.0
November 2006 NetBSD 3.1 NetBSD 3.0.2 OpenBSD 4.0
December 2006 Solaris 10 11/06
January 2007 FreeBSD 6.2 DragonFly BSD 1.8.0
March 2007 DragonFly BSD 1.8.1
April 2007 Minix 3.1.3
May 2007 OpenBSD 4.1
June 2007 Minix 3.1.3a
August 2007 DragonFly BSD 1.10.0 Solaris 10 8/07
August 21, 2007 DragonFly BSD 1.10.1
October 2007
November 2007 OpenBSD 4.2
December 2007 NetBSD 4.0
January 2008 FreeBSD 6.3
February 2008 FreeBSD 7.0 DragonFly BSD 1.12.0
May 2008 OpenBSD 4.3 Solaris 10 5/08
The Octopus Mid 2008 Second Edition
July 2008 DragonFly BSD 2.0.0
September 2008 DragonFly BSD 2.0.1
October 2008 NetBSD 4.0.1 Solaris 10 10/08
November 2008 FreeBSD 6.4 OpenBSD 4.4
January 2009 FreeBSD 7.1
February 2009 DragonFly BSD 2.2.0
April 2009 NetBSD 5.0 DragonFly BSD 2.2.1
May 2009 FreeBSD 7.2 OpenBSD 4.5 Solaris 10 05/09
July 2009 Minix 3.1.4
August 2009 NetBSD 5.0.1
September 2009 DragonFly BSD 2.4.0
October 2009 DragonFly BSD 2.4.1 OpenBSD 4.6 Solaris 10 10/09
November 2009 FreeBSD 8.0 Minix 3.1.5
February 2010 NetBSD 5.0.2 Minix 3.1.6
March 2010 FreeBSD 7.3 DragonFly BSD 2.6.0
April 2010 DragonFly BSD 2.6.1
22 April 2010 DragonFly BSD 2.6.2
May 2010 DragonFly BSD 2.6.3 OpenBSD 4.7
June 2010 Minix 3.1.7
July 2010 FreeBSD 8.1
September 2010 Solaris 10 9/10
October 2010 DragonFly BSD 2.8.2 Minix 3.1.8
November 2010 NetBSD 5.1 OpenBSD 4.8
February 2011 FreeBSD 7.4 FreeBSD 8.2
April 2011 DragonFly BSD 2.10.1
May 2011 OpenBSD 4.9
August 2011 Solaris 10 8/11
November 2011 OpenBSD 5.0 Solaris 11 11/11
January 2012 FreeBSD 9.0
February 2012 DragonFly BSD 3.0.1 Minix 3.2.0
April 2012 FreeBSD 8.3
May 2012 OpenBSD 5.1
October 2012 NetBSD 6.0
November 2012 DragonFly BSD 3.2.1 OpenBSD 5.2
December 2012 FreeBSD 9.1
February 2013 Minix 3.2.1
April 2013 DragonFly BSD 3.4.1
May 2013 NetBSD 6.1 OpenBSD 5.3
Plan 9 from Bell Labs Inferno June 2013 FreeBSD 8.4 Daily Snapshot New Edition