Merge remote-tracking branch 'origin/master' into staging-next

let

  requiredVersion = import ./lib/minver.nix;

  missingFeatures = map ({ description, ... }: description) (import ./lib/minfeatures.nix).missing;

in

if !builtins ? nixVersion || builtins.compareVersions requiredVersion builtins.nixVersion == 1 then

if missingFeatures != [ ] then

  abort ''

    This version of Nixpkgs requires Nix >= ${requiredVersion} but it is being

    evaluated with Nix ${builtins.nixVersion or "(too old to know)"}, please upgrade:

    This version of Nixpkgs requires an implementation of Nix with the following features:

    - ${builtins.concatStringsSep "\n- " missingFeatures}

    Your are evaluating with Nix ${builtins.nixVersion or "(too old to know)"}, please upgrade:

    - If you are running NixOS, `nixos-rebuild' can be used to upgrade your system.

- `cudaPackages_x`: A major-versioned alias to the major-minor-versioned CUDA package set with the latest widely supported major CUDA release.

- `cudaPackages`: An unversioned alias to the major-versioned alias for the latest widely supported CUDA release. The package set referenced by this alias is also referred to as the "default" CUDA package set.

It is recommended to use the unversioned `cudaPackages` attribute. While versioned package sets are available (e.g., `cudaPackages_12_2`), they are periodically removed.

It is recommended to use the unversioned `cudaPackages` attribute. While versioned package sets are available (e.g., `cudaPackages_12_8`), they are periodically removed.

Here are two examples to illustrate the naming conventions:

- If `cudaPackages_12_8` is the latest release in the 12.x series, but core libraries like OpenCV or ONNX Runtime fail to build with it, `cudaPackages_12` may alias `cudaPackages_12_6` instead of `cudaPackages_12_8`.

- If `cudaPackages_12_9` is the latest release in the 12.x series, but core libraries like OpenCV or ONNX Runtime fail to build with it, `cudaPackages_12` may alias `cudaPackages_12_8` instead of `cudaPackages_12_9`.

- If `cudaPackages_13_1` is the latest release, but core libraries like PyTorch or Torch Vision fail to build with it, `cudaPackages` may alias `cudaPackages_12` instead of `cudaPackages_13`.

All CUDA package sets include common CUDA packages like `libcublas`, `cudnn`, `tensorrt`, and `nccl`.

When using `callPackage`, you can choose to pass in a different variant, e.g. when a package requires a specific version of CUDA:

```nix

{ mypkg = callPackage { cudaPackages = cudaPackages_12_2; }; }

{ mypkg = callPackage { cudaPackages = cudaPackages_12_6; }; }

```

::: {.caution}

# D (Dlang) {#dlang}

Nixpkgs provides multiple D compilers such as `ldc`, `dmd` and `gdc`.

Nixpkgs provides multiple D compilers such as `ldc` and `dmd`.

These can be used like any other package during build time.

However, Nixpkgs provides a build helper for compiling packages using the `dub` package manager.

- The `offrss` package was removed due to lack of upstream maintenance since 2012. It's recommended for users to migrate to another RSS reader

- GCC 9, 10, 11, and 12 have been removed, as they have reached end‐of‐life upstream and are no longer supported.

- `base16-builder` node package has been removed due to lack of upstream maintenance.

- `gentium` package now provides `Gentium-*.ttf` files, and not `GentiumPlus-*.ttf` files like before. The font identifiers `Gentium Plus*` are available in the `gentium-plus` package, and if you want to use the more recently updated package `gentium` [by sil](https://software.sil.org/gentium/), you should update your configuration files to use the `Gentium` font identifier.

- `space-orbit` package has been removed due to lack of upstream maintenance. Debian upstream stopped tracking it in 2011.

- `mongodb-6_0` was removed as it is end of life as of 2025-07-31.

- CUDA versions below 12.6 have been removed, as they are unmaintained upstream and depend on end‐of‐life compilers.

- `vmware-horizon-client` was renamed to `omnissa-horizon-client`, following [VMware's sale of their end-user business to Omnissa](https://www.omnissa.com/insights/introducing-omnissa-the-former-vmware-end-user-computing-business/). The binary has been renamed from `vmware-view` to `horizon-client`.

- `neovimUtils.makeNeovimConfig` now uses `customLuaRC` parameter instead of accepting `luaRcContent`. The old usage is deprecated but still works with a warning.

  Example: `lib.take` is an alias for `lib.lists.take`.

Most files in this directory are definitions of sub-libraries, but there are a few others:

- [`minver.nix`](minver.nix): A string of the minimum version of Nix that is required to evaluate Nixpkgs.

- [`minfeatures.nix`](minfeatures.nix): A list of conditions for the used Nix version to match that are required to evaluate Nixpkgs.

- [`tests`](tests): Tests, see [Running tests](#running-tests)

  - [`release.nix`](tests/release.nix): A derivation aggregating all tests

  - [`misc.nix`](tests/misc.nix): Evaluation unit tests for most sub-libraries