The Landscape Client is the agent which communicates with the Landscape service.
update-motd
in maintainer scripts by @Perfect5th in https://github.com/canonical/landscape-client/pull/201
Full Changelog: https://github.com/canonical/landscape-client/compare/23.10...24.02
To install via dpkg:
$ sudo dpkg -i landscape-common-23.02-0ubuntu1_<arch>.deb
$ sudo dpkg -i landscape-client-23.02-0ubuntu1_<arch>.deb