Editing Tru64 UNIX (section)

== Versions ==
These versions were released for Alpha AXP platforms.<ref>{{cite book |author=Cheek, Matthew |title=Digital UNIX System Administrator's Guide |year=1999 |isbn=1-55558-199-4 |url-access=registration |url=https://archive.org/details/digitalunixsyste0000chee }}</ref><ref>{{cite web |url=http://h30097.www3.hp.com/docs/pub_page/doc_list.html |title=Tru64 UNIX Online Documentation and Reference Pages |access-date=2009-12-03}}</ref><ref>{{cite web |url=http://www.roma1.infn.it/SIC/_OLD_documentazione/unix/migr/digital-unix-doc/DOCUMENTATION/HTML/AA-QTLMB-TE_html/TITLE.html |title=DIGITAL UNIX Release Notes for Version 4.0B |access-date=2012-01-05 |archive-date=2009-10-10 |archive-url=https://web.archive.org/web/20091010210130/http://www.roma1.infn.it/SIC/_OLD_documentazione/unix/migr/digital-unix-doc/DOCUMENTATION/HTML/AA-QTLMB-TE_html/TITLE.html |url-status=dead }}</ref><ref>{{cite web|url=http://www.helsinki.fi/atk/unix/dec_manuals/DOC_40E/ACRO_DUX/AQTLMDTE.PDF |title=DIGITAL UNIX Release Notes for Version 4.0E |access-date=2009-12-03 |url-status=dead |archive-url=https://web.archive.org/web/20121008040552/http://www.helsinki.fi/atk/unix/dec_manuals/DOC_40E/ACRO_DUX/AQTLMDTE.PDF |archive-date=2012-10-08 }}</ref>

{| class="wikitable" border="1"
|-
! style=min-width:9em | Version
! Approx Date
! Notes
|-
| DEC OSF/1 1.2
| March 1993
|
|-
| DEC OSF/1 1.2A
| April 1993
| Hardware only release
|-
| DEC OSF/1 1.3
| July 1993
|
|-
| DEC OSF/1 1.3A
| September 1993
| 
|-
| DEC OSF/1 1.3B
| November 1993
| Hardware only release
|-
| DEC OSF/1 2.0
| March 1994
|
|-
| DEC OSF/1 2.0A
| April 1994
| Logical Storage Manager (LSM) v1; AdvFS v1; ASE v1 introduced
|-
| DEC OSF/1 2.0B
| May 1994
| Hardware only release
|-
| DEC OSF/1 2.1
| July 1994
|
|-
| DEC OSF/1 3.0
| August 1994
| SMP support
|-
| DEC OSF/1 3.0A
| September 1994
| ASE v1.1; System V Environment
|-
| DEC OSF/1 3.0B
| September 1994
| Hardware only release
|-
| Digital UNIX 3.2
| February 1995
|
|-
| Digital UNIX 3.2A
| March 1995
| ASE v1.2
|-
| Digital UNIX 3.2B
| May 1995
| Hardware only release
|-
| Digital UNIX 3.2C
| July 1995
|
|-
| Digital UNIX 3.2D-1
| January 1996
| ASE v1.3
|-
| Digital UNIX 3.2D-2
| January 1996
| Hardware only release
|-
| Digital UNIX 3.2E
| March 1996
| TruCluster v1.0
|-
| Digital UNIX 4.0
| March 1996
| CDE made default desktop
|-
| Digital UNIX 3.2F
| June 1996
|-
| Digital UNIX 3.2G
| August 1996
|
|-
| Digital UNIX 4.0A
| September 1996
| ASE v1.4
|-
| Digital UNIX 4.0B
| December 1996
| X/Open-compliant Curses
|-
| Digital UNIX 4.0C
| April 1997
|
|-
| Digital UNIX 4.0D
| December 1997
| Y2K readiness; extended UIDs/GIDs; class scheduler; JDK 1.1.4; Netscape 3.04
|-
| Digital UNIX 4.0E
| November 1998
| ASE v1.5; USB support; AdvFS atomic write data logging; Sendmail 8.8.8; ODBC/JDBC; Netscape 4.05
|-
| Tru64 UNIX 4.0F
| April 1999
| USB keyboard/mouse support; limited DVD support; Netscape 4.5; COM for Tru64 UNIX
|-
| Tru64 UNIX 5.0
| July 1999
| Improved performance/scalability; Hot-swap; Sendmail 8.8.8; OpenMP; Netscape 4.51; X11R6.3
|-
| Tru64 UNIX 5.0A
| April 2000
| UFS Delayed metadata option; Sendmail 8.9.3; Netscape 4.7; ISO 9660 install disc
|-
| Tru64 UNIX 4.0G
| May 2000
| Maximum 256 X clients (formerly 128); Netscape 4.7
|-
| Tru64 UNIX 5.1
| September 2000
| Extended System V functionality; Tcl/Tk 8.2; IPv6
|-
| Tru64 UNIX 5.1A
| September 2001
| Online CPU addition/removal; UNIX 98 Conformance; X11R6.5; Netscape 4.76
|-
| Tru64 UNIX 5.1B
| September 2002
| Big Pages; IPv6 Enhancements; Netscape 6; Unicode 3.1
|-
| Tru64 UNIX 5.1B-1
| November 2003
| Name Service Switch (NSS); Mozilla 1.4
|-
| Tru64 UNIX 5.1B-2
| August 2004
| Unified Buffer Cache Scaling; Perl 5.8.4; Mozilla 1.6
|-
| Tru64 UNIX 5.1B-3
| June 2005
| AdvFS robustness; Accounting refinements; LSM enhancements; Mozilla 1.7.5
|-
| Tru64 UNIX 5.1B-4
| December 2006
| POSIX conformance; Rebranding (COMPAQ to HP); 2007 U.S. DST changes; BIND 9.2.5
|-
| Tru64 UNIX 5.1B-5
| March 2009
| Standards conformance; Support for latest DST changes; BIND 9.2.8
|-
| Tru64 UNIX 5.1B-6
| October 2010
| Defect fixes only. Support ended 31 Dec 2012
|}