Vercel announces Node.js 10 support for serverless functions and Next.js applications. Users can upgrade by adding an engines field with "node": "10.x" to their package.json. Node.js 10 brings performance improvements through V8 6.6, BigInt support, stable native addon APIs, and better Buffer creation methods. The upgrade is supported across @vercel/node, @vercel/next, and @vercel/static-build builders