- Throw an error when a loader or action returns undefined, requiring explicit null to avoid SSR and revalidation issues
- Fix redirect handling: support external domains, preserve HTTP methods on 307/308 redirects, and add basename support for static data routers
- Enhance ErrorResponse bodies and hydration serialization, fix NavLink encoding bugs, and update router dependencies
v6.4.4
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Patch release v6.30.6 for React Router.
Release v7.18.2 is now available.