Introduction to Next.js 15

Next.js 15 is the latest version of the most popular React framework. This version brings many important improvements in performance and developer experience.

Key Features

1. App Router

App Router is one of the most important features of Next.js 13+ and has been significantly improved in Next.js 15. It allows you to:

• Organize code with folder-based routing structure
• Use React Server Components by default
• Built-in streaming and Suspense
• Nested layouts and templates

2. React Server Components

React Server Components allow you to render components on the server, minimizing JavaScript bundle size and improving performance:

// app/page.tsx - Server Component by default
export default async function HomePage() {
  const data = await fetchData(); // Fetch directly on server
  
  return (
    <div>
      <h1>Welcome to Next.js 15</h1>
      <DataDisplay data={data} />
    </div>
  );
}

3. Improved Performance

Next.js 15 has significantly improved performance:

• Faster build times with Turbopack
• Optimized image loading
• Better code splitting
• Improved caching strategies

Conclusion

Next.js 15 is a major step forward in building modern web applications. With App Router, React Server Components, and many other new features, Next.js 15 helps developers build applications faster and more efficiently.

Try Next.js 15 today and experience the difference!