KaOS 2026.09 is out with Dinit, Niri, and Noctalia 5.1. That combination is unusual enough to be worth unpacking.

KaOS is an independent rolling distribution, not derived from Arch or anything else, built around a single desktop (KDE Plasma), a single toolkit (Qt), and a single architecture (x86_64). The deliberate narrowness is the point: a small team can do a focused job where it could not do a broad one.

Dinit

KaOS uses Dinit rather than systemd, which puts it in a small group of distributions that made that choice without being an explicitly anti-systemd project.

Dinit is a service manager and init system with dependency handling and parallel startup, so it is not a return to sequential shell scripts. It is considerably smaller than systemd in scope, handling service supervision and leaving logging, networking, device management, and the rest to separate tools.

The honest tradeoff: less integration and a much smaller ecosystem of unit files, against a system you can read and understand in an afternoon. Our systemd explainer covers what the mainstream option does, and most of those responsibilities are someone else’s problem under Dinit.

Niri

Niri is a scrolling tiling Wayland compositor, and the model is genuinely different from the usual tiling arrangement.

Conventional tiling compositors divide a fixed screen among windows, so opening a fourth window shrinks the other three. Niri instead places windows in an infinite horizontal strip at whatever width you give them, and the viewport scrolls along it. A new window does not compress the existing ones; it goes to the right, and you scroll to it.

For anyone who has found tiling layouts cramped on a single monitor, this addresses the actual complaint. It is also noticeably easier to reason about than a tree of splits.

Shipping it in a KDE-centric distribution is the interesting part, since it signals KaOS treating Wayland compositor choice as something users might want rather than assuming Plasma covers everyone.

Noctalia 5.1

Noctalia is a Wayland desktop shell that reached stable at version 5 earlier this month, with 5.1 adding a built-in screenshot region editor with annotations, cellular connectivity, and enterprise Wi-Fi support.

It pairs naturally with a compositor like Niri, which handles window management and deliberately does not provide panels, launchers, or notifications. Noctalia fills that layer.

Who this is for

KaOS has always been for people who want Plasma done carefully by a small team with strong opinions, and who accept a limited package repository as the cost. This release extends that to people who want a non-systemd base and a modern Wayland setup without assembling it themselves from an Arch install.

That is a narrow audience. It is also an audience that has historically had to do all of this by hand.