qubes-doc/installing/supported-versions.md

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doc	Supported Versions	/doc/supported-versions/

Supported Versions

Qubes OS

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 FTP server.

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, supported
Release 3.2	2016-09-29	TBA	Current, supported
Release 4.0	TBA	TBA	In development

Dom0

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 4.0	TBA

Note: 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 end-of-life.

TemplateVMs

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 2	21	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	8 ("jessie")
Release 4.0	TBA	TBA

* Denotes versions for which we have published the packages but have not done extensive testing.