In Xenial virtual machine installed .21 from proposed, did
---> ua detach --assume-yes apt update apt upgrade apt install hello update-manager <---
and confirmed that update-manager just says "The computer must be rebooted to complete the installation of the updates" instead of offering Pro packages.
In Xenial virtual machine installed .21 from proposed, did
--->
ua detach --assume-yes
apt update
apt upgrade
apt install hello
update-manager
<---
and confirmed that update-manager just says "The computer must be rebooted to complete the installation of the updates" instead of offering Pro packages.