Ubuntu Mate 21.10 upgrade
Channel: GiiTube
Date: 2021-10-15

Instructions and information on upgrading to Mate 21.10,  released 14 Oct.2021.


----------------
https://ubuntu-mate.org/fr/blog/ubuntu-mate-impish-indri-final-release/

 /usr/lib/ubuntu-release-upgrader/check-new-release-gtk