KDE neon is a Ubuntu-based Linux distribution and live DVD featuring the latest KDE Plasma desktop and other KDE community software. Besides the installable DVD image, the project provides a rapidly-evolving software repository with all the latest KDE software. Two editions of the product are available - a "User" edition, designed for those interested in checking out the latest KDE software as it gets released, and a "Developer's" edition, created as a platform for testing cutting-edge KDE applications.

• KDE neon 20240228
• KDE neon 20180925
• KDE neon 5.8
• KDE neon 5.7

KDE Neon is a great job. I see that at least all the major Linux distributions and the various desktops that are being developed have made a lot of progress in the last few years.