Next.js 16 in Production: Performance & Best Practices

What's New in Next.js 16

Next.js 16 brings significant changes that affect how we build production applications.

React Server Components are now the standard. This means:

Smaller client bundles

Direct database access

Better SEO out of the box

Add "use client" only when you need:

Event handlers (onClick, onChange)

useState, useEffect

Browser APIs

Cache entire routes or components for better performance.

Use next/image everywhere

Implement blur placeholders

Serve modern formats (WebP, AVIF)

Use next/font for zero layout shift

Subset fonts for smaller payloads

Automatic edge optimization

Built-in analytics

Zero-config deployments

Next.js 16 offers powerful features for building fast, scalable applications.