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Astro release calendar

The latest Astro releases, straight from GitHub and refreshed every few hours. The newest version sits in the core, click a node or row for the notes.

v6.4.8Minor / patch

Released on June 17, 2026

  • Harden the limits on the number of decoding on the URL.
Full release notes on GitHub
  1. v6.4.8June 17, 2026

    Harden the limits on the number of decoding on the URL.

  2. v6.4.7June 15, 2026

    Fixes getRelativeLocaleUrl, getAbsoluteLocaleUrl, and getAbsoluteLocaleUrlList to strip trailing slashes when trailingSlash: 'never' is configured

  3. v6.4.6June 10, 2026

    Fixes an issue where renaming an image file while the dev server is running triggers a build error. Now Astro correctly hot-reloads the image witho...

  4. v6.4.5June 9, 2026

    Fixes the experimental.logger destination not being used for the "Server listening on..." startup message. The logger is now resolved before the se...

  5. v6.4.4June 3, 2026

    Prevents App.match() from throwing on request paths that contain an invalid percent-sequence.

  6. v6.4.3June 2, 2026

    Bumps devalue dependency to v5.8.1

  7. v6.4.2May 28, 2026

    Fixes a plugins is not iterable crash when using a pre-6.0 @astrojs/mdx alongside integrations (e.g. Starlight) that set markdown.remarkPlugins, ma...

  8. v6.4.0May 28, 2026

    Adds a new preserveBuildServerDir adapter feature

  9. v6.3.8May 26, 2026

    Fixes 404s for dynamically imported JS chunks when using an adapter with assetQueryParams (e.g. Vercel skew protection)

  10. v6.3.7May 21, 2026

    Fixes request body handling in the Node adapter when req.body is a Buffer, Uint8Array, or ArrayBuffer. Previously, binary body data was incorrectly...

  11. v6.3.6May 20, 2026

    Fixes markdown images with empty alt text (![](image.jpg)) in content collections dropping the alt attribute entirely. The alt="" attribute is now ...