Qubes OS 44 Published by

The final version of Qubes OS 4.0.4 has been released. 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.





Qubes OS 4.0.4 has been released!

We’re pleased to announce the release of Qubes OS 4.0.4! This is the fourth stable release of Qubes 4.0. It includes many updates over the initial 4.0 release, including:

  • All 4.0 dom0 updates to date
  • Fedora 32 TemplateVM
  • Debian 10 TemplateVM
  • Whonix 15 Gateway and Workstation TemplateVMs
  • Linux kernel 5.4 by default

Qubes 4.0.4 is available on the  downloads page.

What is a point release?

A point release does not designate a separate, new version of Qubes OS. Rather, it designates its respective major or minor release (in this case, 4.0) inclusive of all updates up to a certain point. Installing Qubes 4.0 and  fully updating it results in the same system as installing Qubes 4.0.4.

What should I do?

If you installed Qubes 4.0, 4.0.1, 4.0.2, or 4.0.3 and have  fully updated, then your system is already equivalent to a Qubes 4.0.4 installation. No further action is required.

Regardless of your current OS, if you wish to install (or reinstall) Qubes 4.0 for any reason, then the 4.0.4 ISO makes this more convenient and secure, since it bundles all Qubes 4.0 updates to date. Please see the  installation guide for detailed instructions.

Thank you to all the release candidate users for testing this release and  reporting issues!



Qubes OS 4.0.4 has been released!