chore(deps): update astro

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@astrojs/starlight (source)	^0.38.1 → ^0.40.0
astro (source)	6.4.6 → 6.4.7

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Release Notes

withastro/starlight (@​astrojs/starlight)

v0.40.0

Compare Source

Minor Changes

• #​3923 edf2e6b Thanks @​Princesseuh! - Adds support for Astro 6.4 and the new Sätteri Markdown processor.

  It is now possible to opt into using Astro's 6.4 Sätteri Markdown processor by installing the @astrojs/markdown-satteri package and configuring it in your astro.config.mjs file:

  // astro.config.mjs
  
  import { defineConfig } from 'astro/config';
  import { satteri } from '@​astrojs/markdown-satteri';
  
  export default defineConfig({
    markdown: {
      processor: satteri(),
    },
  });

  ⚠️ BREAKING CHANGE: The minimum supported version of Astro is now v6.4.5.

  Please update Starlight and Astro together:

  npx @​astrojs/upgrade

  Community Starlight plugins and Astro integrations may also need to be manually updated to work with Sätteri. If you encounter any issues, please reach out to the plugin or integration author to see if it is a known issue or if an updated version is being worked on.

Patch Changes

• #​3923 edf2e6b Thanks @​Princesseuh! - Updates Expressive Code to version 0.43.1.

v0.39.3

Compare Source

Patch Changes

• #​3910 dddf405 Thanks @​andreialba! - Improves Romanian UI translations

• #​3924 02f2ce1 Thanks @​BouRock! - Improves Turkish UI translations

• #​3928 11a7ed2 Thanks @​delucis! - Updates Pagefind to v1.5 and adds support for Pagefind’s new diacriticSimilarity and metaWeights advanced ranking options

• #​3927 e944870 Thanks @​HiDeoo! - Refactors internal file path handling for Starlight content collections.

v0.39.2

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Patch Changes

• #​3890 2d05e18 Thanks @​tats-u! - Fixes CSS selector for text-autospace styles in Chromium browsers

v0.39.1

Compare Source

Patch Changes

• #​3885 010eed1 Thanks @​ArmandPhilippot! - Fixes the version mentioned in an error message related to autogenerated sidebar groups support.

• #​3887 b3c6990 Thanks @​delucis! - Adds 13 new icons: clock, desktop, mobile-android, window, database, server, code-branch, notes, question, question-circle, analytics, padlock, and solidjs.

v0.39.0

Compare Source

Minor Changes

• #​3618 dcf6d09 Thanks @​HiDeoo! - ⚠️ BREAKING CHANGE: This release changes how autogenerated links work in Starlight’s sidebar configuration.

  If you have sidebar groups using the autogenerate key, you must now wrap that configuration in an items array:

  {
      label: 'My group',
  -   autogenerate: { directory: 'some-dir' },
  +   items: [{ autogenerate: { directory: 'some-dir' } }],
  }

  This change unlocks the possibility to mix autogenerated links and other links in a single group, for example:

  {
    label: 'Mixed group',
    items: [
      'example-page',
      { autogenerate: { directory: 'examples' } },
      { label: 'More examples', link: 'https://example.com' },
    ],
  }

  This release also updates the shape of autogenerated sidebar entries in route data. Autogenerated links and groups in Astro.locals.starlightRoute.sidebar now include an autogenerate object with the configured directory value:

  {
    type: 'link',
    label: 'Example',
    href: '/examples/example/',
    isCurrent: false,
    autogenerate: { directory: 'examples' }
  }

• #​3618 dcf6d09 Thanks @​HiDeoo! - ⚠️ BREAKING CHANGE: This release changes the default collapsed state of autogenerated sidebar subgroups.

  Autogenerated subgroups no longer inherit the collapsed value from their parent group. They are now expanded by default unless explicitly configured with autogenerate.collapsed.

  If your sidebar configuration relies on a collapsed parent group to also collapse its autogenerated subgroups, update your configuration to set autogenerate.collapsed to true:

  {
    label: 'Reference',
    collapsed: true,
    items: [
  -   { autogenerate: { directory: 'reference' } },
  +   { autogenerate: { directory: 'reference', collapsed: true } },
    ],
  }

• #​3845 4d755f5 Thanks @​delucis! - Adds a <link rel="alternate" hreflang="x-default" href="..."> tag pointing to the default locale in multilingual sites. The x-default alternate is used as a signal of which language to fall back to if no other is available. Learn more in Google’s SEO localization docs.

• #​3862 ec70630 Thanks @​itrew! - Makes spacing of items in nested lists more consistent

• #​3872 417a66c Thanks @​tats-u! - Enables the CSS property text-autospace in Chinese and Japanese documents.

  If you would prefer to disable autospacing in Chinese and Japanese pages, you can add the following custom CSS to your site:

  [lang]:where(:lang(zh, ja)) {
    text-autospace: initial;
  }

• #​3797 9764ebd Thanks @​delucis! - Avoids the risk of layout shift when users expand and collapse sidebar groups

  This release can introduce additional padding to the site sidebar on certain devices to reserve space for scrollbars. You may wish to inspect your site sidebar visually when upgrading.

  If you would prefer to keep the previous styling, you can add the following custom CSS to your site:

  .sidebar-pane {
    scrollbar-gutter: auto;
  }

• #​3858 6672c35 Thanks @​delucis! - Updates i18next, used for Starlight’s localization APIs, from v23 to v26

  There should not be any user-facing changes from this update

withastro/astro (astro)

v6.4.7

Compare Source

Patch Changes

• #​17035 197e50e Thanks @​astrobot-houston! - Fixes getRelativeLocaleUrl, getAbsoluteLocaleUrl, and getAbsoluteLocaleUrlList to strip trailing slashes when trailingSlash: 'never' is configured

• #​16967 3719765 Thanks @​astrobot-houston! - Fixes double URL-encoded paths returning 400 Bad Request on on-demand routes

  Previously, any URL containing a double-encoded character (like %255B, which is [ encoded twice) was unconditionally rejected with a 400 Bad Request before middleware or route handlers could run. This broke embedded tools like Sanity Studio whose client-side router legitimately produces double-encoded URLs.

  The fix replaces the rejection approach with iterative decoding — multi-level percent-encoding is now fully resolved to its canonical form before being passed to middleware and route matching. This preserves the security fix for CVE-2025-66202 (middleware authorization bypass via double encoding) because middleware now always sees the fully decoded path, making bypass impossible. For example, /api/%2561dmin is decoded to /api/admin, which middleware can correctly block.

• #​17066 2f4d92a Thanks @​matthewp! - Fixes prerendered redirect targets being incorrectly bundled into the SSR function in hybrid mode, causing massive bundle size inflation

• #​16882 621beb7 Thanks @​jettwayio! - fix(render): honour compressHTML when joining head elements

• #​16892 8d753b0 Thanks @​astrobot-houston! - Fixes custom elements in MDX having their children's slot attribute stripped by the JSX runtime

  When custom elements (tags with hyphens like <my-element>) are used in MDX files, the slot HTML attribute on their children is now correctly preserved. Previously, the shared JSX runtime would treat slot as an Astro slot assignment and remove it from the output, breaking Shadow DOM named slot distribution for web components.

• #​16957 544ee76 Thanks @​thelazylamaGit! - Fixes stale inline CSS in server-rendered HTML after CSS file edits during dev

  When editing a CSS file (.css, .scss, etc.) during development, the inline <style> tags in server-rendered HTML would retain old CSS content instead of updating. This caused a brief flash of old CSS (FOUC) on fresh page loads before Vite's client-side HMR corrected the styles.

  The fix ensures that Astro's per-route dev CSS virtual modules are invalidated in both the SSR module graph and the module runner's evaluation cache when a style file changes, so the next page render picks up the fresh CSS.

• #​17044 2220d22 Thanks @​astrobot-houston! - Fixes CSS from client:only islands leaking to unrelated pages when Rollup bundles non-CSS-importing modules into the same chunk as CSS-importing modules

• #​17040 7c4763d Thanks @​astrobot-houston! - Fixes HMR not triggering for files inside the src/middleware/ directory during dev

• #​16672 52fc862 Thanks @​martinheidegger! - Fixes support for numeric IDs in YAML frontmatter when using content collection references

• #​16762 9de80ae Thanks @​alexanderdombroski! - Adds a JSON schema to the Wrangler configuration file generated when running astro add cloudflare

• #​17046 ef771ec Thanks @​ematipico! - Improves the diagnostics emitted when Astro parses incorrect .astro files.

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