
Qubes OS is a free and open-source, security-oriented operating system for single-user desktop computing. Qubes OS leverages Xen-based virtualization to allow for the creation and management of isolated compartments called qubes.
Fedora 41 approaching end of life
Fedora 41 is currently scheduled to reach end of life (EOL) on 2025-11-19 (approximately two weeks from the date of this announcement). Please upgrade all of your Fedora templates and standalones by that date. For more information, see Upgrading to avoid EOL. There are two (…)
The following new Debian 13 templates are now available for both Qubes OS 4.2 (stable) and Qubes OS 4.3 (release candidates): debian-13-xfce (default Debian template with the Xfce desktop environment) debian-13 (alternative Debian template with the GNOME desktop environment) (…)
Qubes OS 4.3.0-rc3 is available for testing
We’re pleased to announce that the third release candidate (RC) for Qubes OS 4.3.0 is now available for testing. This minor release includes many new features and improvements over Qubes OS 4.2. What’s new in Qubes 4.3? Dom0 upgraded to Fedora 41 (#9402). Xen upgraded to (…)
The Xen Project has released one or more Xen security advisories (XSAs). The security of Qubes OS is not affected. XSAs that DO affect the security of Qubes OS The following XSAs do affect the security of Qubes OS: (none) XSAs that DO NOT affect the security of Qubes OS The (…)
The Xen Project has released one or more Xen security advisories (XSAs). The security of Qubes OS is not affected. XSAs that DO affect the security of Qubes OS The following XSAs do affect the security of Qubes OS: (none) XSAs that DO NOT affect the security of Qubes OS The (…)
Qubes OS Summit 2025: videos and slides
Qubes OS Summit 2025 has concluded! Thank you to our sponsors, presenters, attendees, and organizers for making this year’s summit a success! If you missed the summit, or if you’d like to review any of the presentations, live stream recordings from this year’s summit are (…)
Qubes OS 4.3.0-rc2 is available for testing
We’re pleased to announce that the second release candidate (RC) for Qubes OS 4.3.0 is now available for testing. This minor release includes many new features and improvements over Qubes OS 4.2. What’s new in Qubes 4.3? Dom0 upgraded to Fedora 41 (#9402). Xen upgraded to (…)
The Qubes documentation has successfully migrated to Read the Docs!
The migration of the Qubes documentation to Read the Docs is now complete! As of today, the new documentation hosted by Read the Docs has officially replaced the old documentation, and all old documentation URLs will automatically redirect to their new counterparts at (…)
The Xen Project has released one or more Xen security advisories (XSAs). The security of Qubes OS is not affected. XSAs that DO affect the security of Qubes OS The following XSAs do affect the security of Qubes OS: (none) XSAs that DO NOT affect the security of Qubes OS The (…)
We have published Qubes Canary 044. The text of this canary and its accompanying cryptographic signatures are reproduced below. For an explanation of this announcement and instructions for authenticating this canary, please see the end of this announcement. Qubes Canary 044 (…)

North Korean Hackers Turn JSON Services into Covert Malware Delivery Channels
The North Korean threat actors behind the Contagious Interview campaign have once again tweaked their tactics by using JSON storage services to stage (…)
14 November

CISA Warns of Active Attacks on Cisco ASA and Firepower Flaws
CISA issues an urgent directive for all organizations to patch Cisco ASA and Firepower devices against CVE-2025-20362 and CVE-2025-20333, exploited in the (…)
14 November

Cybersecurity Lessons For Leaders: Designing Resilience at Scale
This week in cybersecurity from the editors at Cybercrime Magazine Sausalito, Calif. – Nov. 14, 2025 – Read the full story in Forbes “As an AI entrepreneur (…)
14 November

How to turn off Copilot and protect your data from Microsoft’s AI
Find out how to disable Copilot AI on Windows, limit Microsoft’s data collection, and protect your privacy and security from AI training.
14 November