The gnome equivalent software (Update manager -c) does correctly warn the user about the outdated Kubuntu version 21.04 . Kubuntu's plasma-discover 21.04 does not. plasma-discover --version discover 5.21.4 apt show discover Package: discover Version: 2.1.2-8 Priority: optional Section: universe/admin Origin: Ubuntu Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com> Original-Maintainer: Debian Install System Team <debian-boot@lists.debian.org> Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 91,1 kB Depends: libc6 (>= 2.4), libdiscover2 (= 2.1.2-8), debconf (>= 0.5) | debconf-2.0 Suggests: lsb-base Conflicts: discover1 (<< 2.0) Download-Size: 24,1 kB APT-Sources: http://de.archive.ubuntu.com/ubuntu hirsute/universe amd64 Packages update-manager --version WARNING:root:can not import unity GI Namespace Dbusmenu not available update-manager: version 1:21.04.10
Created attachment 147140 [details] discover screenshot
Created attachment 147141 [details] update-manager screenshot
*** This bug has been marked as a duplicate of bug 449259 ***