Comment 37 for bug 1750465

I tested the plymouth update for xenial by enabling proposed, then installing plymouth-theme-ubuntu-text, then modifying /etc/apt/sources.list from xenial to bionic and finally running sudo apt-get dist-upgrade. The upgrade completed with no issues.

I think testing update-manager -d and do-release-upgrade -d is overly paranoid and I'm setting this to verification-done.