25.05 is Warbler

  - made sure NixOS tests are [linked](https://github.com/NixOS/nixpkgs/blob/master/pkgs/README.md#linking-nixos-module-tests-to-a-package) to the relevant packages

- [ ] Tested compilation of all packages that depend on this change using `nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD"`. Note: all changes have to be committed, also see [nixpkgs-review usage](https://github.com/Mic92/nixpkgs-review#usage)

- [ ] Tested basic functionality of all binary files (usually in `./result/bin/`)

- [24.11 Release Notes](https://github.com/NixOS/nixpkgs/blob/master/nixos/doc/manual/release-notes/rl-2411.section.md) (or backporting [23.11](https://github.com/NixOS/nixpkgs/blob/master/nixos/doc/manual/release-notes/rl-2311.section.md) and [24.05](https://github.com/NixOS/nixpkgs/blob/master/nixos/doc/manual/release-notes/rl-2405.section.md) Release notes)

- [25.05 Release Notes](https://github.com/NixOS/nixpkgs/blob/master/nixos/doc/manual/release-notes/rl-2505.section.md) (or backporting [24.11](https://github.com/NixOS/nixpkgs/blob/master/nixos/doc/manual/release-notes/rl-2411.section.md) and [25.05](https://github.com/NixOS/nixpkgs/blob/master/nixos/doc/manual/release-notes/rl-2505.section.md) Release notes)

  - [ ] (Package updates) Added a release notes entry if the change is major or breaking

  - [ ] (Module updates) Added a release notes entry if the change is significant

  - [ ] (Module addition) Added a release notes entry if adding a new NixOS module

            into: staging-next-24.05

          - from: staging-next-24.05

            into: staging-24.05

          - from: release-24.11

            into: staging-next-24.11

          - from: staging-next-24.11

            into: staging-24.11

    name: ${{ matrix.pairs.from }} → ${{ matrix.pairs.into }}

    steps:

      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

Here's a brief overview of the main Git branches and what channels they're used for:

- `master`: The main branch, used for the unstable channels such as `nixpkgs-unstable`, `nixos-unstable` and `nixos-unstable-small`.

- `release-YY.MM` (e.g. `release-24.05`): The NixOS release branches, used for the stable channels such as `nixos-24.05`, `nixos-24.05-small` and `nixpkgs-24.05-darwin`.

- `release-YY.MM` (e.g. `release-24.11`): The NixOS release branches, used for the stable channels such as `nixos-24.11`, `nixos-24.11-small` and `nixpkgs-24.11-darwin`.

When a channel is updated, a corresponding Git branch is also updated to point to the corresponding commit.

So e.g. the [`nixpkgs-unstable` branch](https://github.com/nixos/nixpkgs/tree/nixpkgs-unstable) corresponds to the Git commit from the [`nixpkgs-unstable` channel](https://channels.nixos.org/nixpkgs-unstable).

24.11

 No newline at end of file

25.05

 No newline at end of file

    On each release the first letter is bumped and a new animal is chosen

    starting with that new letter.

  */

  codeName = "Vicuna";

  codeName = "Warbler";

  /**

    Returns the current nixpkgs version suffix as string.