I will include instructions on how to upgrade an existing Qubes Whonix template (version 9.6.2) to the recently released Whonix 10.
I have been able to test in 'whonix-gateway` in Qubes Release 3, but do not have access to machine with Release 2 installed on it. Nor have I been able to test upgrading whonix-workstation since I did not have an earlier version to upgrade with.
ITL will also release, at some point, a full template which would replace your existing template for users not interested in the upgrade process.
Please report any bugs or errors you experience here; but not ones listed as expected. An additional task may then be created for any bugs that I am currently unaware of.