Garuda Linux drops linux-zen for a CachyOS kernel and rewrites Hyprland in Lua with Temeraire

August 19, 2026. Garuda Linux publishes Temeraire, its first major release in over a year. August 20, 2026. The 260819 ISO and its eleven editions land for download. The substantive change comes down to one decision: the distribution drops linux-zen, its historic default kernel, for linux-garuda, built on the CachyOS kernel.

For a busy Arch Linux user, that is an architectural signal more than a cosmetic update: two performance-oriented derivatives stop duplicating their kernel engineering and converge on a shared foundation.

The kernel changes hands

Garuda built part of its reputation on linux-zen, a performance and responsiveness-oriented kernel patchset shipped by default. Temeraire replaces it with linux-garuda, compiled from the work of CachyOS — a sister distribution, also Arch-derived, that has spent recent years specializing in kernel tuning.

The new kernel runs the EEVDF scheduler and relies on DKMS to rebuild itself against the latest NVIDIA drivers. That last detail is not trivial: it addresses one of the most common ways a rolling-release system breaks, when a kernel update lands, the proprietary NVIDIA module does not recompile in time, and the user reboots into a black screen.

The choice is consolidation more than innovation. Rather than maintain a parallel patchset, Garuda adopts the engineering of a project that made it a specialty. The practical result: the two most prominent performance-focused Arch derivatives now share the same kernel work, freeing maintenance for the rest of the distribution.

SDDM out, Plasma Login Manager in

The KDE Plasma editions switch from the SDDM session manager to Plasma Login Manager, including in the live environment. Plasma Login Manager is KDE’s newer greeter, built to integrate directly with the rest of the Plasma stack, where SDDM remains a more general-purpose component. Shipping it in the live environment too means the installer experience matches the installed one.

The KDE Plasma version shipped is 6.7.4, aligned with the Linux 7.2 kernel that accompanies the release.

Hyprland, the heaviest rewrite

The Hyprland edition undergoes the most substantial rework of the release. The configuration is now written entirely in Lua, hyprlock takes over screen locking, Kitty becomes the default terminal, and awww replaces swww for wallpaper management.

The move to Lua is the real change. Hyprland’s native config format is fine for small setups and becomes unwieldy for the heavily customized environment Garuda ships. Lua brings variables, functions, and conditionals — exactly what a distribution needs when it maintains a config that must work across very different hardware.

The trade-off is acknowledged: anyone who pushed their own customizations onto the Hyprland edition should expect to redo them.

Eleven editions, a dragon naming scheme

Temeraire ships in KDE, Hyprland, and Sway variants, alongside the in-house FireDragon 13 and 11 browser, a Firefox derivative. The project also announces a naming change going forward: releases will carry dragon names, Temeraire coming from Naomi Novik’s novels — a more literate choice than most distributions manage.

What CachyOS brings in practice

CachyOS has built its reputation on fine-grained kernel tuning: builds optimized for specific processor families, the EEVDF and sched_ext schedulers pushed early, and continuous work on responsiveness under load. Adopting its kernel rather than maintaining a home-grown patchset is an admission that kernel optimization has become a discipline of its own, too expensive for a small team to duplicate.

The EEVDF scheduler — Earliest Eligible Virtual Deadline First — is the centerpiece of that work. It is the scheduler that orders processes on the CPU by assigning each a virtual deadline instead of fixed time slices. In practice, it improves responsiveness under mixed load: a machine compiling or encoding in the background stays smoother on screen. For a distribution that sells itself on desktop performance, that is a substantive argument, not a cosmetic detail.

The convergence has a second, less flashy effect: when Garuda and CachyOS share the same kernel work, fixes, regressions, and tuning benefit both communities instead of diverging. It is an engineering consolidation whose fruits the end user reaps without thinking about it.

A specific place in the Arch ecosystem

Garuda occupies a precise niche among Arch Linux derivatives. Where Arch remains a minimal base you build yourself, and EndeavourOS aims for a simple install close to the original, Garuda commits to shipping a ready-to-use, themed, performance-oriented system, with Btrfs and Snapper for rollbacks after a bad update. Temeraire does not change that identity — it modernizes it by consolidating the part that is most expensive to maintain alone, the kernel.

That positioning also explains the timing. More than a year without a major release is long for a rolling release that ships its changes as they come; but it is consistent with a distribution that prefers to settle several long-standing defaults at once. Replacing linux-zen and SDDM fits that logic: inherited choices that had stopped being the best ones, corrected in a single iteration rather than through successive patches.

What the Hyprland rewrite means for users

The Lua migration changes the day-to-day of anyone who customizes the Hyprland edition. In the native config format, a change that should be conditional — a different monitor layout on a laptop versus a desktop dock, a keybinding that only makes sense on one machine — required duplicating whole blocks. In Lua, the same logic becomes a function called with a variable. Garuda’s maintainers can now express their theming and layout once, then branch on detected hardware, instead of shipping a config that holds together by accumulation.

The trade-off is real and one-directional: existing hand-written configs do not port automatically. Users who invested in the old format will redo that work in Lua — but they redo it once, on a foundation that is easier to extend afterward, and the distribution’s own config finally treats hardware variance as a first-class problem rather than a list of edge cases.

Should you upgrade

Garuda is a rolling release: existing users get there through normal updates, not a reinstall. The kernel change is the one point that warrants an explicit check. If you depended on specific linux-zen behaviors, verify the switch before assuming it is transparent.

uname -r
pacman -Q linux-garuda linux-zen

The first command prints the running kernel; the second lists installed kernel packages. After the switch, linux-garuda should be present and linux-zen replaced — if both still coexist, the choice of which one stays is yours.

Verdict

If you already run Garuda, the update is worth it for the kernel consolidation and the unified greeter, but treat it as a kernel migration rather than a plain pacman -Syu: check the active kernel, watch NVIDIA on the first reboot, and expect to redo your Hyprland customizations.

If you are weighing Arch derivatives, the decision plays out elsewhere than in this release: Garuda remains an Arch derivative with everything that implies for maintenance and cadence. What Temeraire clarifies is that competition between performance derivatives no longer plays out on the kernel — they now share one — but on assembly, configuration defaults, and the quality of the default itself.

References

• 9to5Linux — Arch Linux-Based Garuda Linux “Temeraire” Released with Linux Kernel 7.2, August 20, 2026
• Linux Dork — Garuda Linux “Temeraire” Drops Zen for a CachyOS-Based Kernel and Rewrites Hyprland in Lua, August 20, 2026
• AlternativeTo — Garuda Linux “Temeraire” release with Linux kernel 7.2 & KDE, Hyprland and Sway updates, August 2026
• Linux Compatible — Garuda Linux Temeraire 260819 Released: New Kernel, FireDragon 13 and 11 Editions, August 19, 2026