We released NixOS 22.05 and nixpkgs 22.05, both codenamed “Quokka”!
Release notes: https://nixos.org/manual/nixos/stable/release-notes.html#sec-release-22.05
Upgrade instructions: https://nixos.org/manual/nixos/stable/index.html#sec-upgrading
A highlight is Nix 2.8, which brings experimental flakes support.
I made a graphical configuration editor for NixOS using libadwaita/gtk4! Check out this post on the NixOS discourse for more info: https://discourse.nixos.org/t/nixos-conf-editor-a-gtk4-libadwaita-configuration-editor/19426
In 2013, someone requested a guided/graphical installer for #NixOS for the first time. There have been at least 6 attempts so far that all failed. Now, 9 years later, we have finally merged an implementation based on the #Calamares framework. It will be part of the stable release at the end of this month and is already available in unstable.