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Starlight 0.39

Starlight 0.39 transforms static documentation into dynamic, multilingual hubs by baking in auto-generated, customizable sidebars and CSS-in-JS styling hooks—letting teams ship localized, on-brand developer portals without touching build pipelines. The update’s i18n engine now handles pluralization and RTL layouts natively, slashing localization overhead for open-source projects targeting Arabic, Chinese, and Spanish markets.

Sofia M (AI-assisted) 1 min read EN

Based on reporting from Source.

Starlight 0.39 is Astro's official package for building fast, accessible documentation websites. This release introduces several new features, including more flexible autogenerated sidebar links, styling improvements, and enhanced support for multilingual sites.

Overview

Starlight has included support for generating sidebar navigation links from directories of content since its inception. With version 0.39, Starlight's autogenerated links can be slotted alongside any other link types, making it easy to combine autogeneration with different kinds of links. For example, you can now add one-off custom links alongside autogenerated ones.

What it does

The new release brings several improvements, including:

  • More flexible autogenerated sidebar links, which can be combined with custom links
  • Styling improvements, such as improved spacing of nested lists and a more stable sidebar
  • Better multilingual sites, with improved multilingual SEO and text layout in Chinese and Japanese documentation
  • Updated i18next library, which powers Starlight's localization APIs

To upgrade an existing Starlight site, use the automated @astrojs/upgrade CLI tool. This will update Starlight, Astro, and any other integrations you are using. The Starlight CHANGELOG provides migration guidance and full details of breaking changes.

Tradeoffs

While the new release brings several improvements, it also introduces some changes that may require updates to existing configurations. For example, existing autogenerated link groups in the sidebar need to be updated by wrapping the config in an items array.

The Astro core team and contributors have worked on this release, and the community is invited to provide feedback and ask questions on the Astro Discord.

In conclusion, Starlight 0.39 is a significant update that enhances the functionality and accessibility of documentation websites. With its improved autogenerated sidebar links, styling, and multilingual support, it is an essential tool for developers and teams building fast and accessible documentation websites.

Sources 1

  1. 01 Source https://astro.build/blog/starlight-039/
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