[qubes-users] Whonix support for Qubes 4.0 has ended

Dear Qubes Community,

As a final reminder following our previous announcements [1][2], Whonix
support for Qubes 4.0 ends today, 2022-04-20.

## How does Whonix support work?

While Qubes OS releases are supported for six months [3] following each
subsequent major or minor release, Whonix templates have their own
support policy [4] set by the Whonix Project. This policy requires
Whonix template users to stay reasonably close to the cutting edge by
upgrading to new stable releases of Qubes OS and Whonix templates within
a month of their respective releases. To be precise:

- One month after a new stable version of Qubes OS is released, Whonix
   templates are no longer supported on any older release of Qubes OS.
   This means that users who wish to continue using Whonix templates on
   Qubes are usually required to upgrade to the latest stable Qubes OS
   version within one month of its release (unless the deadline is
   extended, as it has been in this case).

- One month after new stable versions of Whonix templates are released,
   older releases of Whonix templates are no longer supported. This means
   that users who wish to continue using Whonix templates on Qubes are
   usually required to upgrade to the latest stable Whonix template
   versions within one month of their release. (This point doesn't apply
   to the present situation, since this announcement pertains to a new
   Qubes OS release, not a new Whonix template release. However, I'm
   mentioning it here for the sake of completeness, as it's part of the
   Whonix support policy.)

## What does this mean for you?

If you're currently using Whonix on Qubes 4.0, you should immediately
either upgrade to Qubes 4.1 [5] or discontinue the use of Whonix.

If you're already on Qubes 4.1, or you don't use Whonix templates,
then you're all set. This announcement doesn't change anything for you.

[1] Qubes OS 4.1.0 has been released! | Qubes OS
[2] Whonix support for Qubes 4.0 extended | Qubes OS
[3] Supported releases | Qubes OS
[4] Supported releases | Qubes OS
[5] How to upgrade to Qubes 4.1 | Qubes OS

This announcement is also available on the Qubes website: