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NixOS 25.05 Released with Linux 6.12 LTS and 6.14 Kernels, GNOME 48, and More
Powered by the long-term supported Linux 6.12 LTS and Linux 6.14 kernel series, NixOS 25.05 (codename Warbler) is here six months after NixOS 24.11 with support for the latest and greatest GNOME 48 desktop environment series, as well as initial support for System76’s Rust-based COSMIC desktop environment.
NixOS 25.05 also introduces the nixos-rebuild build-image sub-command to let users build platform-specific (disk) images from their NixOS configurations, significantly reworks the packaging of Mesa graphics drivers, and introduces nixos-rebuild-ng as a full rewrite of nixos-rebuild written in Python.
NixOS:
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NixOS 25.05 released | Blog | Nix & NixOS
Hey everyone, we are Leona Maroni and Tristan Ross, the release managers of the newest release of NixOS. We are very proud to announce the public availability of NixOS 25.05 “Warbler”.
NixOS is a Linux distribution. Its underlying package repository Nixpkgs can also be used on other Linux systems and macOS with the Nix package manager.
This release will receive bugfixes and security updates for seven months (up until 2025-12-31). The old release 24.11 “Vicuña” is now officially deprecated and will reach its end-of-life and stop receiving security updates after 2025-06-30.
Linuxiac:
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NixOS 25.05 Lands with Kernel 6.12 and COSMIC DE Support
Almost six months after its previous 24.11 “Vicuna” release, the new stable version, NixOS 25.05 “Vicuna,” is officially here. Targeted at advanced users and developers and betting on an immutable design and an atomic update model, NixOS is a unique Linux distro emphasizing reproducibility and reliability using the Nix package manager.
This new release adds an impressive 7,840 new packages while updating over 28,000 existing ones. At the same time, nearly 1,700 outdated packages were pruned.
On the desktop side, GNOME 48 is now the default version, featuring welcome enhancements such as notification stacking, HDR support, and a new music player. But what’s more exciting is that NixOS 25.05 introduces initial support for System76’s COSMIC DE (Alpha 7 build), which users can enable via simple configuration options.
LWN:
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NixOS 25.05 released
Version 25.05 of the NixOS distribution has been released. Changes include support for the COSMIC desktop environment (reviewed here in August), GNOME 48, a 6.12 kernel, and many new modules; see the release notes for details. (Thanks to Pavel Roskin).