In a Xenial virtual machine with Pro unattached, installed version .20 of update-manager from proposed, opened update-manager and verified that Nginx in the Pro section shows
Available version: 1.10.3-0ubuntu0.16.04.5+esm5
In a Xenial virtual machine with Pro unattached, installed version .20 of update-manager from proposed, opened update-manager and verified that Nginx in the Pro section shows
Available version: 1.10.3- 0ubuntu0. 16.04.5+ esm5