Welcome to Kubuntu
Kubuntu is an open-source operating system that you can freely download and use today. It combines the power of Ubuntu together with the elegant KDE Plasma desktop. All the tools you need to work, create, and play are available from the start, so you can do what matters to you right away.
Simple by default
Kubuntu is designed to be easy to use out of the box. The KDE Plasma desktop comes with thoughtfully chosen defaults to make your experience smooth and easy.
Powerful when needed
When your workflow isn't one-size-fits-all, Kubuntu has you covered! Browse through a wide range of applications in Discover, customize the desktop to your liking, and make your system truly your own.
KRunner is the built-in launcher for the Plasma desktop. It can perform many tasks. From opening files, currency conversions, or even controlling your music player. It has it all!
Download Now
The open-source Kubuntu OS is free to download and use today. Click here to download now.
Recent News
October 15, 2026
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.
read moreOctober 15, 2026
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.
read moreOctober 4, 2026
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.
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