- Improves start-up speed by using jiti v2 with native ESM imports and adds a new shared/ folder for shared code/types with auto‑imports.
- Introduces experimental rspack builder, new composables (useResponseHeader, useRuntimeHook), addServerTemplate utility, and v4‑compatible changes like component name normalization and pages:resolved hook.
- Contains numerous performance tweaks, bug fixes, and documentation updates across the Nuxt ecosystem.