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1st chunk of `doc/release-notes/rl-2511.section.md`
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# Nixpkgs 25.11 ("Xantusia", 2025.11/??) {#sec-nixpkgs-release-25.11}

## Highlights {#sec-nixpkgs-release-25.11-highlights}
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- The initial work to support native compilation on LoongArch64 has completed, with further changes currently
  in preparation. In accordance with the [Software Development and Build Convention for LoongArch Architectures](https://github.com/loongson/la-softdev-convention),
  this release sets the default march level to `la64v1.0`, covering the desktop and server processors of 3X5000
  and newer series. However, embedded chips without LSX (Loongson SIMD eXtension), such as 2K0300 SoC, are not
  supported. `pkgsCross.loongarch64-linux-embedded` can be used to build software and systems for these platforms.

## Backward Incompatibilities {#sec-nixpkgs-release-25.11-incompatibilities}

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

- `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.

## Other Notable Changes {#sec-nixpkgs-release-25.11-notable-changes}

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- Added `rewriteURL` attribute to the nixpkgs `config`, to allow for rewriting the URLs downloaded by `fetchurl`.

## Nixpkgs Library {#sec-nixpkgs-release-25.11-lib}

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### Breaking changes {#sec-nixpkgs-release-25.11-lib-breaking}

- Create the first release note entry in this section!


### Deprecations {#sec-nixpkgs-release-25.11-lib-deprecations}

- Create the first release note entry in this section!


### Additions and Improvements {#sec-nixpkgs-release-25.11-lib-additions-improvements}

- `neovim`: Added support for the `vim.o.exrc` option, the `VIMINIT` environment variable, and sourcing of `sysinit.vim`.

  See the neovim help page [`:help startup`](https://neovim.io/doc/user/starting.html#startup) for more information, as well as [the nixpkgs neovim wrapper documentation](#neovim-custom-configuration).
Title: Nixpkgs 25.11 Release Notes: Highlights, Incompatibilities, and Library Changes
Summary
This document details the release notes for Nixpkgs 25.11, codenamed "Xantusia." It highlights initial support for native compilation on LoongArch64, backward incompatibilities including the removal of `offrss` and `base16-builder`, and changes to the `gentium` package. Other notable changes include the addition of `rewriteURL` to the nixpkgs config. Breaking changes, deprecations and improvements to the Nixpkgs library are noted, including added support for vim options in `neovim`.