Qubes OS releases are supported for six months after each subsequent major or minor release (see Version Scheme). The current release and past major releases are always available on the Downloads page, while all ISOs, including past minor releases, are available from our download mirrors.
|Qubes OS Version||Start Date||End Date||Status|
|Release 1||2012-09-03||2015-03-26||Old, unsupported|
|Release 2||2014-09-26||2016-04-01||Old, unsupported|
|Release 3.0||2015-10-01||2016-09-09||Old, unsupported|
|Release 3.1||2016-03-09||2017-03-29||Old, unsupported|
|Release 3.2||2016-09-29||TBA||Current, extended support|
|Release 3.2.1||TBA||TBA||In development|
|Release 4.0||TBA||TBA||In development (prerelease)|
The table below shows the OS used for dom0 in each Qubes OS release.
|Qubes OS Version||Dom0 OS|
|Release 1||Fedora 13|
|Release 2||Fedora 18|
|Release 3.0||Fedora 20|
|Release 3.1||Fedora 20|
|Release 3.2||Fedora 23|
|Release 3.2.1||Fedora 23|
|Release 4.0||Fedora 25|
Note on dom0 and EOL
Dom0 is isolated from domUs. DomUs can access only a few interfaces, such as Xen, device backends (in the dom0 kernel and in other VMs, such as the NetVM), and Qubes tools (gui-daemon, qrexec-daemon, etc.). These components are security-critical, and we provide updates for all of them (when necessary), regardless of the support status of the base distribution. For this reason, we consider it safe to continue using a given base distribution in dom0 even after it has reached EOL (end-of-life).
The table below shows the TemplateVM versions supported by each Qubes OS release. Currently, only Fedora and Debian TemplateVMs are officially supported.
|Qubes OS Version||Fedora Versions||Debian Versions|
|Release 1||18, 20||None|
|Release 3.0||21, 22*, 23||7 (“wheezy”)*, 8 (“jessie”)|
|Release 3.1||21, 22*, 23||7 (“wheezy”)*, 8 (“jessie”), 9 (“stretch”)*|
|Release 3.2||23*, 24*, 25, 26||8 (“jessie”), 9 (“stretch”)|
|Release 3.2.1||23*, 24*, 25, 26||8 (“jessie”), 9 (“stretch”)|
|Release 4.0||25, 26||8 (“jessie”), 9 (“stretch”)|
* Denotes versions for which we have published the packages but have not done extensive testing.