See bug 1706770 and https://changelogs.ubuntu.com/changelogs/pool/universe/u/ubuntu-mate-meta/ubuntu-mate-meta_1.282/changelog for details about gnome-system-tools removal from default installation.
See bug 1706770 and https:/ /changelogs. ubuntu. com/changelogs/ pool/universe/ u/ubuntu- mate-meta/ ubuntu- mate-meta_ 1.282/changelog for details about gnome-system-tools removal from default installation.