Kubuntu 26.10 Release Notes October 15, 2026 The Latest KDE Plasma on Ubuntu’s Newest Interim Release The Kubuntu team is happy to announce the release of Kubuntu 26.10, codenamed “Stonking Stingray”! Building on the Ubuntu 26.10 base released today by Canonical, Kubuntu 26.10 ships Plasma 6.7 (6.7.5) alongside Qt 6.11.2, KDE Frameworks 6.29.0 and KDE Gear 26.08.1, on Linux kernel 7.3. Kubuntu 26.10 is an interim release and will receive security updates and critical fixes for 9 months, until July 2027.

Stonking Stingray is out. Here’s the stack, how to upgrade, a Virtual Desktops tip and a Discover pick. Kubuntu 26.10, codenamed Stonking Stingray, is out today, Thursday 15 October 2026, released on the same day as the Ubuntu 26.10 base. It is an interim release, supported with security updates and critical fixes for nine months, until July 2027. If you need long-term support, Kubuntu 26.04 LTS remains supported until April 2029.

The mandatory beta is on cdimage. Here is how to test it without risking your daily machine, and how to file a bug someone can actually fix. Episode 24 walks the same steps. Kubuntu 26.10 beta directory on cdimage The beta is the one to break Kubuntu 26.10 is in beta. The codename is Stonking Stingray. Feature freeze was 20 August. User interface freeze was 10 September. The mandatory beta was scheduled for 24 September and landed on 1 October.

The Kubuntu team is proud to announce the Beta release of Kubuntu 26.10 — Stonking Stingray, stepping toward our October 2026 release. This is your chance to preview the next edition, put it through its paces, and help us deliver a polished final release. This is a pre-release. It is intended for testing, not production use. Systems may encounter instability. If you need reliability, stick with Kubuntu 26.04 for now.

Kubuntu 26.04.1 is out — but the release that matters is the one somebody paid to support properly. The Bullet-Proof KDE announcement The bit nobody funded Nate Graham on what a real LTS looks like Last year KDE retired the Plasma LTS product, and the reasoning was honest. Almost nobody shipped it — Kubuntu, essentially, and not Debian or openSUSE Leap. It only ever covered Plasma itself, not the KDE Frameworks underneath or the Gear applications on top.

Kubuntu 26.04 LTS is now arguably the world’s most reliable KDE-powered LTS Linux distribution, thanks to the Bullet-Proof KDE Software Initiative. This provides KDE bug fixes and security updates for the duration of the Kubuntu 26.04 LTS lifecycle. Teams from Kubuntu, KDE, Techpaladin Software, and Kubuntu Focus work together to identify and fix real-world bugs and security issues to provide the best possible user experience. Unlike previous Plasma LTS versions, this work includes the entire software stack: KDE Frameworks libraries, the Plasma 6.

Kubuntu 26.04 LTS Resolute Raccoon Released April 23, 2026 Bringing the Best of KDE to Ubuntu’s Long-Term Foundation The Kubuntu team is thrilled to announce the release of Kubuntu 26.04 LTS, codenamed “Resolute Raccoon”! As a community-driven flavour of Ubuntu, Kubuntu continues its mission to deliver the cutting-edge KDE software ecosystem on top of Ubuntu’s rock-solid foundation. This Long-Term Support release, aligned with Ubuntu’s two-year LTS cycle, brings together the freshest stable KDE software with the reliability and security users depend on for years to come.

The Kubuntu team is proud to announce the Beta release of Kubuntu 26.04 LTS — Resolute Raccoon, stepping toward our April 2026 release. This is your chance to preview the next Long-Term Support edition, put it through its paces, and help us deliver a polished final release. This is a pre-release. It is intended for testing, not production use. Systems may encounter instability. If you need reliability, stick with Kubuntu 25.

We have had many requests to make Plasma 5.27 available in our backports PPA for Jammy Jellyfish 22.04. However, for technical reasons this would have broken upgrades to Kinetic 22.10 while that upgrade path existed. Now that Kinetic is end of life, it is possible to allow opt in backports of plasma 5.27 for 22.04. As with the previous backport of plasma 5.25, version 5.27 is provided in the backports-extra PPA