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nix-super/src/nix/upgrade-nix.md
Graham Christensen fd5a4a8467 nix upgrade-nix: make the source URL an option 
This new option enables organizations to more easily manage their Nix
fleet's deployment, and ensure a consistent and planned rollout of Nix
upgrades.
2023-11-10 12:12:28 -05:00

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R""(

Examples

  • Upgrade Nix to the stable version declared in Nixpkgs:

    # nix upgrade-nix

  • Upgrade Nix in a specific profile:

    # nix upgrade-nix --profile ~alice/.local/state/nix/profiles/profile

Description

This command upgrades Nix to the stable version.

By default, the latest stable version is defined by Nixpkgs, in nix-fallback-paths.nix and updated manually. It may not always be the latest tagged release.

By default, it locates the directory containing the nix binary in the $PATH environment variable. If that directory is a Nix profile, it will upgrade the nix package in that profile to the latest stable binary release.

You cannot use this command to upgrade Nix in the system profile of a NixOS system (that is, if nix is found in /run/current-system).

)""