- Performance and build enhancements: batch‑resolve TypeScript hoist paths, VFS manifest handling, hash‑based dev payload cache, and improved Vite/webpack style emission.
- Extensive bug fixes across Nuxt/Nitro/Vite including handling of negative zero, loading indicator cleanup, fetch cache options, response status checks, URL encoding, and hydration guard removal.
- Documentation updates, CI/workflow refinements, security config additions, and chores like excluding devDependencies from publishes.
v3.21.3/3.21.4
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Fix island payload serialization for underscore keys and deduplicate island renders during prerender
Improved build and runtime performance with lazy imports, reused scans, and skipping unchanged files across Nuxt, Kit, and Vite.
Security release addressing server‑side RCE, unauthorized component instantiation, route rule authorization bypass, DoS, and dev server path disclosure, plus a regression fix from the prior advisory.