AmigaOS 4 (English Wikipedia)

"ACube Systems Srl". acube-systems.biz.
"AmigaOS 4 for distribution". ACube Systems. Retrieved 2010-11-05.
"ACube Systems announcement". acube-systems.biz. Retrieved 2011-10-11.
"AmigaOS 4.1 for Sam460ex". ACube Systems. 2010-05-13. Archived from the original on 17 May 2010. Retrieved 2010-05-13.
"AmigaOS 4.0 for classic Amiga computers compatibility list" (in Italian). Acube-systems.biz. 2009-12-22. Retrieved 2010-01-31.

amiga-news.de (Global: low place; English: low place)

"Hyperion: Update 2 for AmigaOS 4.1 Final Edition available for download" (Press release). Brussels: Hyperion Entertainment. amiga-news.de. 2020-12-23. Retrieved 2020-12-24.
"Hyperion: 'Hotfix' for AmigaOS 4.1 Final Edition Update 2" (Press release). Brussels: Hyperion Entertainment. amiga-news.de. 2021-01-12. Retrieved 2021-01-13.
"AmigaOS 4.1 Final Edition: Update 3 available" (Press release). Brussels: Hyperion Entertainment. amiga-news.de. 2025-10-18. Retrieved 2025-10-24.

amiga.com (Global: low place; English: low place)

"Announcement at Amiga Inc. official site". Amiga.com. Archived from the original on July 29, 2008. Retrieved 2010-01-31.

amiga.hu (Global: low place; English: low place)

"Project Petunia". Almos Rajnai. 2006-12-30. Retrieved 2010-11-10.

amigans.net (Global: low place; English: low place)

"AmigaOne X1000 Update 5 CD goes gold!". Amigans.net. 2012-01-29. Retrieved 2012-01-09.

amigaos.net (Global: low place; English: low place)

"History of AmigaOS". AmigaOS. 2011-05-28. Retrieved 2022-06-25.

amigaos4.com (Global: low place; English: low place)

Feature Spotlight: The RAM Disk. ^{[dead link]}

amigaworld.net (Global: low place; English: low place)

amigaworld.net

"AmigaOS 4.1 for Pegasos II". Amigaworld.net. Retrieved 2010-01-31.
"AmigaOS 4 Update 5 is out for all". Amigaworld.net. 2012-08-16. Retrieved 2012-08-18.
"Hyperion Releases AmigaOS 4.1 Update 6". Amigaworld.net. 2012-11-30. Retrieved 2012-12-01.
"AmigaOS 4.1 Final Edition shipping now!". Amigaworld.net. 2014-12-18. Retrieved 2014-12-19.
"AmigaOS 4.1 Final Edition available before the end of 2014". Amigaworld.net. 2014-10-26. Retrieved 2014-12-19.
"Final Edition Update 1 is OUT". Amigaworld.net. 2016-12-31. Post 18 by zzd10h. Retrieved 2017-01-01.

bigbash.amigaworld.net

"Friedens explain ownership of ExecSG and licensing to Hyperion Entertainment". amigaworld.net. 2006-11-06. Archived from the original on 2016-03-04. Retrieved 2015-08-24.

amiupdate.net (Global: low place; English: low place)

"AmigaOS 4 updating system". Amiupdate.net. Retrieved 2010-01-31.

arstechnica.com (Global: 388^th place; English: 265^th place)

Purdy, Kevin (2022-10-17). "37-year-old Amiga platform gets updates to Linux kernel, AmigaOS SDK". Ars Technica. Retrieved 2022-11-04.

computerworld.com.au (Global: low place; English: low place)

"AmigaOS 4 developer interview: Why it endures and what the future holds". Computerworld. 2012-05-31. Retrieved 2012-06-02.

docs.google.com (Global: 1,047^th place; English: 1,015^th place)

"Amiga/Hyperion contract". 2010-10-10. Retrieved 2010-09-03.

ghostarchive.org (Global: 32^nd place; English: 21^st place)

""Amiga Inc vs Hyperion Trial is Over - Part 2 of 4" (AmigaOS 3.1 source code [7:15])". YouTube.com. 2009-10-27. Archived from the original on 2021-12-19. Retrieved 2010-09-20.
"YouTube video "Why use Amiga in 2009? - Long cut"". Youtube.com. 2009-03-23. Archived from the original on 2021-12-19. Retrieved 2010-01-31.

hyperion-entertainment.biz (Global: low place; English: low place)

hyperion-entertainment.biz

Administrator. "AmigaOS 4.0 Developer Pre-release goes gold". hyperion-entertainment.biz.
http://www.hyperion-entertainment.biz/8080/news/2007-01-01^{[permanent dead link]}
AmigaOS 4.0 for Classic Amiga gone Gold.^{[permanent dead link]}
Hyperion Entertainment news.^{[permanent dead link]}
"News". hyperion-entertainment.biz.
OEM Version of AmigaOS 4.1 for SAM440ep imminent.^{[permanent dead link]}
AmigaOS 4.0 Developer Pre-release goes gold.^{[permanent dead link]}
First AmigaOS 4.0 Pre-Release update available.^{[permanent dead link]}
"New AmigaOS Update available". Hyperion-entertainment.biz. 2004-12-27. Retrieved 2010-01-31.
"AmigaOS 4.0 Prerelease Update #3 available". Hyperion-entertainment.biz. Retrieved 2010-01-31.
"AmigaOS4.0 Developer Prerelease Update #4 released". Hyperion-entertainment.biz. 2006-02-08. Retrieved 2010-01-31.
"AmigaOS 4.0 July 2007 Update Available". Hyperion-entertainment.biz. Retrieved 2010-01-31.
"AmigaOS 4.0 February 2008 update for CyberStormPPC and BlizzardPPC available". Hyperion-entertainment.biz. Retrieved 2010-01-31.
Hyperion Entertainment announces AmigaOS 4.1.^{[permanent dead link]}
"New AmigaOS 4.1 Quick Fix available". Hyperion-entertainment.biz. 2009-06-21. Archived from the original on 2011-07-06. Retrieved 2010-01-31.
"Update 1 of AmigaOS 4.1 available for immediate download". Hyperion-entertainment.biz. 2010-01-14. Retrieved 2010-01-31.
"Update 2 of AmigaOS 4.1 available". Hyperion-entertainment.biz. 2010-04-30. Archived from the original on 2011-07-06. Retrieved 2010-05-01.

os4.hyperion-entertainment.biz

"Hyperion Entertainment CVBA and Amiga Inc. reach settlement ". Hyperion Entertainment. 2009-10-17. Archived from the original on 23 October 2009. Retrieved 2009-10-18.

blog.hyperion-entertainment.biz

"Breaking the Memory Barrier - Hyperion Entertainment Blog". hyperion-entertainment.biz.

hyperion-entertainment.com (Global: low place; English: low place)

Steven Solie. "AmigaOS 4.1 Update 3 Released". hyperion-entertainment.com.
"Announcing AmigaOS 4.1 Final Edition, Update 1". Hyperion-entertainment.com. 2016-12-31. Retrieved 2017-01-01.

justia.com (Global: 696^th place; English: 428^th place)

docs.justia.com

"DECLARATION of Hans-Jorg Frieden filed by Defendant Hyperion VOF". justia.com. 2007-05-21.
"Second DECLARATION of Hans-Jorg Frieden filed by Defendant Hyperion VOF". justia.com. 2007-05-21.

news.justia.com

"Amiga Inc v. Hyperion VOF". News.justia.com. Archived from the original on 4 January 2010. Retrieved 2010-01-31.

os4depot.net (Global: low place; English: low place)

"OS4 Development » Language". OS4Depot. Retrieved 2010-06-15.

osnews.com (Global: low place; English: low place)

"Hyperion, Amiga, Inc. Reach Settlement, All Legal Issues Resolved". OSNews. 2009-10-17. Archived from the original on 19 October 2009. Retrieved 2009-10-18.

web.archive.org (Global: 1^st place; English: 1^st place)

"Announcement at Amiga Inc. official site". Amiga.com. Archived from the original on July 29, 2008. Retrieved 2010-01-31.
"Amiga Inc v. Hyperion VOF". News.justia.com. Archived from the original on 4 January 2010. Retrieved 2010-01-31.
"Hyperion, Amiga, Inc. Reach Settlement, All Legal Issues Resolved". OSNews. 2009-10-17. Archived from the original on 19 October 2009. Retrieved 2009-10-18.
"Hyperion Entertainment CVBA and Amiga Inc. reach settlement ". Hyperion Entertainment. 2009-10-17. Archived from the original on 23 October 2009. Retrieved 2009-10-18.
"Friedens explain ownership of ExecSG and licensing to Hyperion Entertainment". amigaworld.net. 2006-11-06. Archived from the original on 2016-03-04. Retrieved 2015-08-24.
"YouTube video Amiga OS4 Intuition". Youtube.com. 2007-01-19. Archived from the original on 2016-04-18. Retrieved 2010-01-31.
"AmigaOS 4.1 for Sam460ex". ACube Systems. 2010-05-13. Archived from the original on 17 May 2010. Retrieved 2010-05-13.
"New AmigaOS 4.1 Quick Fix available". Hyperion-entertainment.biz. 2009-06-21. Archived from the original on 2011-07-06. Retrieved 2010-01-31.
"Update 2 of AmigaOS 4.1 available". Hyperion-entertainment.biz. 2010-04-30. Archived from the original on 2011-07-06. Retrieved 2010-05-01.

youtube.com (Global: 9^th place; English: 13^th place)

""Amiga Inc vs Hyperion Trial is Over - Part 2 of 4" (AmigaOS 3.1 source code [7:15])". YouTube.com. 2009-10-27. Archived from the original on 2021-12-19. Retrieved 2010-09-20.
"YouTube video "Why use Amiga in 2009? - Long cut"". Youtube.com. 2009-03-23. Archived from the original on 2021-12-19. Retrieved 2010-01-31.
"YouTube video Amiga OS4 Intuition". Youtube.com. 2007-01-19. Archived from the original on 2016-04-18. Retrieved 2010-01-31.

AmigaOS 4 (English Wikipedia)

acube-systems.biz (Global: low place; English: low place)

amiga-news.de (Global: low place; English: low place)

amiga.com (Global: low place; English: low place)

amiga.hu (Global: low place; English: low place)

amigans.net (Global: low place; English: low place)

amigaos.net (Global: low place; English: low place)

amigaos4.com (Global: low place; English: low place)

amigaworld.net (Global: low place; English: low place)

amigaworld.net

bigbash.amigaworld.net

amiupdate.net (Global: low place; English: low place)

arstechnica.com (Global: 388th place; English: 265th place)

computerworld.com.au (Global: low place; English: low place)

docs.google.com (Global: 1,047th place; English: 1,015th place)

ghostarchive.org (Global: 32nd place; English: 21st place)

hyperion-entertainment.biz (Global: low place; English: low place)

hyperion-entertainment.biz

os4.hyperion-entertainment.biz

blog.hyperion-entertainment.biz

hyperion-entertainment.com (Global: low place; English: low place)

justia.com (Global: 696th place; English: 428th place)

docs.justia.com

news.justia.com

os4depot.net (Global: low place; English: low place)

osnews.com (Global: low place; English: low place)

web.archive.org (Global: 1st place; English: 1st place)

youtube.com (Global: 9th place; English: 13th place)

arstechnica.com (Global: 388^th place; English: 265^th place)

docs.google.com (Global: 1,047^th place; English: 1,015^th place)

ghostarchive.org (Global: 32^nd place; English: 21^st place)

justia.com (Global: 696^th place; English: 428^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

youtube.com (Global: 9^th place; English: 13^th place)