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11 changes: 7 additions & 4 deletions source/concepts/faq.md
Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,13 @@ See [](flakes-definition).

Nixpkgs and NixOS have both stable and rolling releases.

These releases are distributed in variants called "channel branches":
Git branches used for releases, which are also converted to Nix channels.

:::{tip}
Consult the [`nix-channel`](https://nix.dev/manual/nix/2.22/command-ref/nix-channel) entry in the Nix Reference Manual for more information on channels, and the [Nixpkgs contributing guide](https://github.com/NixOS/nixpkgs/blob/master/CONTRIBUTING.md#branch-conventions) on the Nixpkgs branching strategy.
:::

### Stable

Stable releases receive conservative updates to fix bugs or security vulnerabilities; otherwise package versions are not changed.
Expand Down Expand Up @@ -51,10 +58,6 @@ Rolling releases follow [`master`](https://github.com/NixOS/nixpkgs/branches/all

[`*-small`](https://github.com/NixOS/nixpkgs/branches/all?query=-small) channel branches have passed a smaller test suite, which means they are more up-to-date with respect to their base branch, but offer fewer stability guarantees.

:::{tip}
Consult the [`nix-channel`](https://nix.dev/manual/nix/2.22/command-ref/nix-channel) entry in the Nix Reference Manual for more information on channels, and the [Nixpkgs contributing guide](https://github.com/NixOS/nixpkgs/blob/master/CONTRIBUTING.md#branch-conventions) on the Nixpkgs branching strategy.
:::

## Are there any impurities left in sandboxed builds?

Yes. There is:
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14 changes: 14 additions & 0 deletions source/reference/pinning-nixpkgs.md
Original file line number Diff line number Diff line change
Expand Up @@ -77,3 +77,17 @@ Specifying remote Nix expressions, such as the one provided by Nixpkgs, can be d
pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/nixos-22.11.tar.gz") {};
in pkgs.stdenv.mkDerivation { ... }
```

## Finding specific commits and releases

[status.nixos.org](https://status.nixos.org/) provides:

- Latest tested commits for each release - use when pinning to specific commits
- List of active release channels - use when tracking latest channel versions

The complete list of channels is available at [nixos.org/channels](https://nixos.org/channels).

:::{tip}
More information on Nixpkgs and NixOS releases: [](channel-branches)
:::

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