We are very proud to announce the public availability of NixOS 25.11 Xantusia. 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 2026-06-30). The old release 25.05 Warbler is now officially deprecated and will reach its end-of-life and stop receiving security updates after 2025-12-31. GNOME has been updated to version 49 Brescia, which removes X11 session support, introduces a new video player, a new document viewer, a redesigned calender and more changes. Refer to the release notes for more details. LLVM has been updated to version 21. GCC remains at version 14. CMake was updated to version 4.
Official announcement
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