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XSAs released on 2026-03-17
https://www.qubes-os.org/news/2026/03/17/xsas-released-on-2026-03-17/
The Xen Project has released one or more Xen security advisories (XSAs). The security of Qubes OS is affected. XSAs that DO affect the security of Qubes OS The following XSAs do affect the security of Qubes OS: XSA-480 See QSB-110 XSAs that DO NOT affect the security of Qubes OS The fol...
QSB-110: Use after free of paging structures in EPT (XSA-480)
We have published Qubes Security Bulletin (QSB) 110: Use after free of paging structures in EPT (XSA-480). The text of this QSB and its accompanying cryptographic signatures are reproduced below, followed by a general explanation of this announcement and authentication instructions. Qub...
Templates are now available for @fedora 43 on Qubes OS 4.2
https://www.qubes-os.org/news/2026/03/16/fedora-43-templates-available-for-qubes-os-4-2/
The following new Fedora 43 templates are now available for Qubes OS 4.2: fedora-43-xfce (default Fedora template with the Xfce desktop environment) fedora-43 (alternative Fedora template with the GNOME desktop environment) fedora-43-minimal (minimal template for advanced users) Note: T...
@fedora 42 approaching end of life
https://www.qubes-os.org/news/2026/03/13/fedora-42-approaching-end-of-life/
Fedora 42 is currently scheduled to reach end of life (EOL) on 2026-05-13 (two months 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 ways to upgrade a template...
Qubes Canary 046
We have published Qubes Canary 046. 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 046 ---===[ Qube...
Templates are now available for @fedora 43 on Qubes OS 4.3
https://www.qubes-os.org/news/2026/02/06/fedora-43-templates-available/
The following new Fedora 43 templates are now available for Qubes OS 4.3: fedora-43-xfce (default Fedora template with the Xfce desktop environment) fedora-43 (alternative Fedora template with the GNOME desktop environment) fedora-43-minimal (minimal template for advanced users) Note: F...
XSAs released on 2026-01-27
https://www.qubes-os.org/news/2026/01/27/xsas-released-on-2026-01-27/
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 following XS...
Qubes OS 4.3.0 has been released!
https://www.qubes-os.org/news/2025/12/21/qubes-os-4-3-0-has-been-released/
We’re pleased to announce the stable release of Qubes OS 4.3.0! This minor release includes a host of new features, improvements, and bug fixes. The ISO and associated verification files are available on the downloads page. What’s new in Qubes 4.3? Dom0 upgraded to Fedora 41 (#9402). Xe...
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