Quarkos 26.04 'Resolute' LTS is now officially stable and available for download. This long-term support release is based on Ubuntu 26.04 'Resolute Raccoon' and features the KDE Plasma 6.6 desktop by default. A Trinity Desktop Environment edition with the latest Trinity 14.1.6 version will also be available for download soon. Quarkos aims to minimize the use of snap-based software in favor of reliable and well established APT packages. The 'Resolute' release follows Ubuntu's standard 5-year LTS support cycle, with support guaranteed until at least May 2031. Since Ubuntu support may be extended to 10 years, Quarkos could remain supported until May 2036, and we plan to maintain support for as long as Ubuntu upstream does. Quarkos is a user-friendly, desktop-oriented operating system based on Ubuntu Linux, featuring Plasma and optionally the Trinity Desktop Environment, along with the added value of integrated Q4OS tools. Its goal is to provide an Ubuntu-based operating system with the convenience and features associated with Q4OS. Unlike Q4OS, which is based on Debian, Quarkos is built on Ubuntu.
Official announcement
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