How to add the Kubuntu Backports Repository to gain a newer version of the KDE Plasma desktop. $ sudo add-apt-repository ppa:kubuntu-ppa/backports $ sudo apt update $ sudo apt-get dist-upgrade The interim release of Kubuntu gets the most recent version of Plasma desktop, albeit a couple of weeks or so behind KDE Neon. The long term support release of Kubuntu gets the LTS Plasma desktop, which is currently at version 5.8. Like my channel? Please help support it: Patreon: https://www.patreon.com/quidsup Paypal: https://www.paypal.me/quidsup Follow me on Social Media Google+ https://google.com/+quidsup Twitter: https://twitter.com/quidsup Minds: https://minds.com/quidsup