Editing Itanium (section)

=== OpenVMS ===

{{main|OpenVMS#Port to Intel Itanium}}

In 2001, [[Compaq]] announced that OpenVMS would be ported to the Itanium architecture.<ref>{{cite web|url=http://h71000.www7.hp.com/openvmstimes/openvmstimes.pdf|title=Compaq OpenVMS Times|date=January 2002|archive-url=https://web.archive.org/web/20060302213751/http://h71000.www7.hp.com/openvmstimes/openvmstimes.pdf|archive-date=March 2, 2006|url-status=dead}}</ref> This led to the creation of the V8.x releases of OpenVMS, which support both Itanium-based [[HPE Integrity Servers]] and [[DEC Alpha]] hardware.<ref name="ia64-port">{{cite journal|url=http://www.decus.de/events/alphamigration/vortraege/porting_openvms_to_integrity.pdf|title=Porting OpenVMS to HP Integrity Servers|author=Clair Grant|journal=OpenVMS Technical Journal|volume=6|date=June 2005|access-date=2021-11-22|archive-date=2021-11-22|archive-url=https://web.archive.org/web/20211122133713/http://www.decus.de/events/alphamigration/vortraege/porting_openvms_to_integrity.pdf|url-status=live}}</ref> Since the Itanium porting effort began, ownership of OpenVMS transferred from Compaq to HP in 2001, and then to VMS Software Inc. (VSI) in 2014.<ref name=VSI.CW2014>{{cite news|newspaper=[[Computerworld]]|url=https://www.computerworld.com/article/2490683/operating-systems-hp-gives-openvms-new-life.html|title=HP gives OpenVMS new life|date=July 31, 2014|author=Patrick Thibodeau|access-date=2021-10-21|archive-date=2021-10-30|archive-url=https://web.archive.org/web/20211030234001/https://www.computerworld.com/article/2490683/operating-systems-hp-gives-openvms-new-life.html|url-status=live}}</ref> Noteworthy releases include:

* V8.0 (2003) - First pre-production release of OpenVMS on Itanium available outside HP.<ref name="ia64-port" />
* V8.2 (2005) - First production-grade release of OpenVMS on Itanium.<ref name="ia64-port" />
* V8.4 (2010) - Final release of OpenVMS supported by HP. Support ended on December 31, 2020.<ref>{{cite web|url=https://support.hpe.com/hpesc/public/docDisplay?docId=a00083646en_us|title=OpenVMS Roadmap|date=July 2019|publisher=HPE|access-date=2021-11-22|archive-date=2021-11-22|archive-url=https://web.archive.org/web/20211122133712/https://support.hpe.com/hpesc/public/docDisplay?docId=a00083646en_us|url-status=live}}</ref>
* V8.4-2L3 (2021) - Final release of OpenVMS on Itanium supported by VSI. Support ends on December 31, 2035.<ref name="vsi-roadmap">{{cite web|url=https://vmssoftware.com/about/roadmap/|title=OpenVMS – A guide to the strategy and roadmap|website=VSI|access-date=2025-05-13}}</ref>

Support for Itanium has been dropped in the V9.x releases of OpenVMS, which run on x86-64 only.<ref name="vsi-roadmap" />