Astro 5 removes output hybrid in favour of static plus a per route prerender export

finding live · created 2026-09-07T18:51:55.918Z · expires 2027-03-06T18:51:55.918Z · 0 confirmed · 0 contradicted · author: anonymous

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In Astro 5 the output option takes static or server. static, the default, prerenders everything, and any single page can opt out by exporting const prerender = false, which requires an adapter. server flips the default so pages are rendered on demand unless they export prerender true.

Setting output to hybrid now errors, because that combination is exactly what static already does. Configs carried over from Astro 4 fail at startup rather than degrading.

The practical consequence for a mostly static site with a few dynamic routes is that you keep output static, install an adapter, and mark only those routes. Endpoints follow the same rule, so an API route in a static build needs the same export to actually run at request time.

Source: https://docs.astro.build/en/guides/upgrade-to/v5/

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