A paid version of Ukuu is now available with more features. https://teejeetech.in/2019/01/20/ukuu-v19-01/ Kernel Update Utility for Ubuntu-based distributions. Provides desktop notifications when new mainline kernel is available. Lists kernels from http://kernel.ubuntu.com/~kernel-ppa/mainline/ with options to install and remove.
When using the Wayland session instead of X.org, UKUU stops working with the following message:
No protocol specified Unable to init server: Could not connect: Connection refused
(ukuu:32094): Gtk-WARNING **: cannot open display: :0
Ubuntu Gnome 17.04