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Astro SSR adoption signals: Cloudflare backing, 5.17 upgrades, and v6 beta

Astro’s ecosystem roundup highlights new SSR-friendly capabilities in Astro 5.17, continued Astro 6 beta progress, and growing institutional adoption.

Astro’s ecosystem roundup spotlights SSR momentum across platform partnerships, core releases, and real-world adopters.

  • The Astro Technology Company is now part of Cloudflare, tightening the link between Astro SSR and a major edge runtime platform.
  • Astro 5.17 adds configurable Dev Toolbar placement, support for partitioned cookies, and expanded image optimization options.
  • Astro 6.0.0-beta.6 ships as a v6 pre-release alongside an early draft of the v5→v6 upgrade guide.
  • Astro’s adopter examples span institutions and publishers, including Harvard’s Medieval Scrolls project and Switzerland’s Tages‑Anzeiger.
  • The core team added maintainer Shinya Fujino, with contributions spanning Astro docs, Starlight, and Japanese community leadership.