Originally published at: https://www.whonix.org/blog/qubes-whonix-13-0-0-0-7-testers-wanted
Qubes-Whonix only!
Either start with fresh templates. I.e. uninstall qubes-template-whonix-gw and qubes-template-whonix-ws. Then, to install, run in dom0:
sudo qubes-dom0-update --enablerepo=qubes-dom0-unstable qubes-template-whonix-gw qubes-template-whonix-ws
Or you can also upgrade from Whonix testers repository. Please refer to the following instructions:
https://www.whonix.org/wiki/Upgrading_Whonix_12_to_Whonix_13