- Experimental sharedAsyncData/prerender deduplication (sharedPrerenderData option) reduces repeated data fetching during static generation.
- New composables: useId for SSR‑safe unique IDs and refreshCookie/CookieStore for reactive cookie handling.
- Client‑side Node.js built‑ins polyfills, pages:routerOptions hook for module authors, per‑page view‑transition control, and default bundler module resolution.