Adventurous users and developers running the Artful development release can now also test the beta version of Plasma 5.11. This is experimental and can possibly kill kittens!
Bug reports on this beta go to https://bugs.kde.org, not to Launchpad.
The PPA comes with a WARNING: Artful will ship with Plasma 5.10.5, so please be prepared to use ppa-purge to revert changes. Plasma 5.11 will ship too late for inclusion in Kubuntu 17.10, but should be available via the main backports PPA as soon as is practical after release day, October 19th, 2017.
Read more about the beta release: https://www.kde.org/announcements/plasma-5.10.95.php
If you want to test on Artful: sudo add-apt-repository ppa:kubuntu-ppa/beta && sudo apt-get update && sudo apt full-upgrade -y
The purpose of this PPA is testing, and bug reports go to bugs.kde.org.