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Astro astro@6.4.2

Astro: astro@6.4.2 Release

Release date:
May 28, 2026
Previous version:
astro@6.4.0 (released May 28, 2026)
Magnitude:
359 Diff Delta
Contributors:
3 total committers
Data confidence:
Commits:
6 impacting commits

Top Contributors in astro@6.4.2

astrobot-houston
fkatsuhiro
Princesseuh

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Release Notes Published

Patch Changes

  • #16889 b94bcfd Thanks @Princesseuh! - Fixes a plugins is not iterable crash when using a pre-6.0 @astrojs/mdx alongside integrations (e.g. Starlight) that set markdown.remarkPlugins, markdown.rehypePlugins, or markdown.remarkRehype.

  • #16878 b9f6bb9 Thanks @fkatsuhiro! - Fixes an issue where on-demand (SSR) dynamic routes would return 404 when a prerendered dynamic route with the same URL pattern was sorted first alphabetically. In production builds with @astrojs/node adapter, if [a_prebuild].astro (prerender=true) came before [b_ssr].astro alphabetically, requests to URLs not in the prerendered route's static paths would 404 instead of falling through to the SSR route. The fix adds fallthrough logic so that when a prerendered dynamic route matches but can't serve the request, Astro tries subsequent matching routes.