Ubuntu
update-manager package

  1. Bug #2004024
  2. Comment #2

Comment 2 for bug 2004024

Revision history for this message
Michael Poly (mpoly) wrote (last edit ):

After looking further, I think it's intentional, to promote use of Ubuntu Pro.

You can disable it by removing or commenting out /etc/apt/apt.conf.d/20apt-esm-hook.conf (or, presumably, by upgrading to Pro)