Nixpkgs Library, Module System Updates, Deprecations, and NixOS Wiki Launch

- `lib.unsafeGetAttrPos` -> `builtins.unsafeGetAttrPos` - [`lib.cli.toGNUCommandLine`](https://nixos.org/manual/nixpkgs/unstable/#function-library-lib.cli.toGNUCommandLine) now supports the `optionValueSeparator` argument attribute to control the key-value separator for arguments. Documentation improvements: - Much of the documentation has been migrated to the [standard doc-comment format](https://github.com/NixOS/rfcs/pull/145), including [`lib.derivations`](https://nixos.org/manual/nixpkgs/unstable/#sec-functions-library-derivations), [`lib.fixedPoints`](https://nixos.org/manual/nixpkgs/unstable/#sec-functions-library-fixedPoints), [`lib.gvariant`](https://nixos.org/manual/nixpkgs/unstable/#sec-functions-library-gvariant), [`lib.filesystem`](https://nixos.org/manual/nixpkgs/unstable/#sec-functions-library-filesystem), [`lib.strings`](https://nixos.org/manual/nixpkgs/unstable/#sec-functions-library-strings), [`lib.meta`](https://nixos.org/manual/nixpkgs/unstable/#sec-functions-library-meta). - [`lib.generators` documentation](https://nixos.org/manual/nixpkgs/unstable/#sec-functions-library-generators) is now improved and rendered in the manual. - [`lib.cli` documentation](https://nixos.org/manual/nixpkgs/unstable/#sec-functions-library-cli) is now improved and rendered in the manual. - [`lib.composeExtensions`](https://nixos.org/manual/nixpkgs/unstable/#function-library-lib.fixedPoints.composeExtensions) and [`lib.composeManyExtensions`](https://nixos.org/manual/nixpkgs/unstable/#function-library-lib.fixedPoints.composeManyExtensions) documentation is now improved. - [`lib.importTOML`](https://nixos.org/manual/nixpkgs/unstable/#function-library-lib.trivial.importTOML) and [`lib.importJSON`](https://nixos.org/manual/nixpkgs/unstable/#function-library-lib.trivial.importJSON)'s documentation now have an example. Module System: - `lib.importApply`: New function, imports a Nix expression file much like the module system would, after passing an extra positional argument to the function in the file. - Improve error message when accessing an option that isn't defined. - `lib.types.anything`: Don't fail to merge when specifying the same list multiple times. - Improve error when loading a flake as a module. ### Deprecations {#sec-release-24.11-lib-deprecations} - [`lib.options.mkPackageOptionMD`](https://nixos.org/manual/nixpkgs/unstable#function-library-lib.options.mkPackageOptionMD) is now obsolete; use the identical [`lib.options.mkPackageOption`](https://nixos.org/manual/nixpkgs/unstable#function-library-lib.options.mkPackageOption) instead. - `lib.misc.mapAttrsFlatten` is now formally deprecated and will be removed in future releases; use the identical [`lib.attrsets.mapAttrsToList`](https://nixos.org/manual/nixpkgs/unstable#function-library-lib.attrsets.mapAttrsToList) instead. - `lib.isInOldestRelease`: Renamed to [`oldestSupportedReleaseIsAtLeast`](https://nixos.org/manual/nixpkgs/unstable/#function-library-lib.trivial.oldestSupportedReleaseIsAtLeast) and deprecated. ## NixOS Wiki {#sec-release-24.11-wiki} The official NixOS Wiki at [wiki.nixos.org](https://wiki.nixos.org/) was launched in April 2024, featuring content initially copied from the community wiki. The wiki enhances the official documentation, linking to existing resources and providing a categorization system for easy navigation, and is guided by a new "Manual of Style" — a contribution guide and enhanced templates. It offers a wealth of new information, including articles on applications, desktop environments, and a growing number of translations in multiple languages.

This section details updates to the Nixpkgs library, module system, deprecations, and the launch of the official NixOS Wiki. It includes improvements to documentation, such as migrating to the standard doc-comment format, enhancing `lib.generators` and `lib.cli` documentation, and providing examples for `lib.importTOML` and `lib.importJSON`. New functions like `lib.importApply` have been added to the module system, along with improved error messages and handling of types. The section also lists deprecated functions and their replacements, and announces the launch of the official NixOS Wiki, which enhances the official documentation and offers a wealth of new information.