CachyOS Drops August 2026 Update, Rewrites Key Tools in Zig and Rust
The fifth release of the year swaps C# for Zig in its package manager and pushes experimental server profiles into the wild.
CachyOS has shipped its August 2026 release, and if you need a quick headline, it's this: the default GUI package manager, Shelly, has been rewritten from C# to Zig. Rust just took over the handheld daemon's kernel backend and the system tray updater, too. The team is also quietly experimenting with server installation profiles.
This is the fifth major drop of 2026, landing on August 9. It builds on the distribution's ongoing push toward systems languages that don't require a managed runtime. The changes touch the desktop experience, the CLI installer, and the backend tools that keep the system running smoothly.
Shelling out to Zig
Shelly used to rely on a .NET runtime. That dependency is gone now. The developers explicitly note that swapping the package manager's backend "drops the managed runtime dependency in favor of native binaries." You get a smaller memory footprint and noticeably faster startup times. A proper welcome screen greets first-boot users, and the package browser now offers both grid and list views alongside AUR PKGBUILD previews that actually show build output. The rebuilt CLI pulls from official repositories and the AUR in the same search window.
The move to Zig and Rust tracks with what we're seeing across the wider Linux ecosystem. Projects like the Linux kernel and several init systems have been quietly adopting these languages for years. CachyOS is just picking up the pace on the desktop side.
The update checker finally looks at everything in one go. Repositories, AUR, AppImages, Flatpaks, you name it. There's also a TOML-based backup system for CLI users who want to migrate settings between machines. It's a clean rewrite, though I will say the package manager still isn't going to replace pamac or octopi for power users who need advanced dependency resolution. It's meant to be the default, and it should stay out of your way most of the time.
Handhelds, Rust, and a Server Edition?
The handheld daemon, chwd, got its kernel manager backend rewritten from C++ to Rust. That brings the same runtime-free benefits to the Steam Deck and Ayaneo crowd. Detection now relies on board name pattern matching, and it handles missing DMI files and virtual machines without crashing. Bulgarian localization made it into the build.
The systray update applet, Cachy-Update, was rebased on Arch-Update v4.x. You can now run --check --enable to flip on automated checks and start the tray icon in a single command. The default check interval sits at six hours, and you can paginate the results through the config file. If you're keeping score on what's new for the installer, the CLI version got a major refactoring pass. More interestingly, it now supports experimental Server Edition installation profiles. This is the first real sign that CachyOS wants to move beyond desktops and gaming handhelds into actual server workloads.
The desktop installer also switched Hyprland's Noctalia variant to a custom greeter, and Cinnamon got the slick-greeter treatment. The Noctalia desktop environment keeps growing, picking up mango and niri window manager variants alongside the existing Hyprland setup. Nord KDE received an update for Plasma 6.7, and a new nice value tuning option in cachyos-settings fixes a recurring PipeWire error.
ISOs for both Desktop and Handheld editions are live right now. You can grab them directly from here. If you're already running a previous CachyOS build, a simple sudo pacman -Syu will pull everything down. No manual intervention required.
