@malangaman - The release upgrade process works by downloading a tarball of ubuntu-release-upgrader from the archive for the release of Ubuntu to which you are going to upgrade. Then that tarball is extracted and the code ran, so there is no need to download and install the latest version of ubuntu-release-upgrader as that is done automatically.
@malangaman - The release upgrade process works by downloading a tarball of ubuntu- release- upgrader from the archive for the release of Ubuntu to which you are going to upgrade. Then that tarball is extracted and the code ran, so there is no need to download and install the latest version of ubuntu- release- upgrader as that is done automatically.