Getting Started with Next.js 15

Next.js 15 brings exciting new features and improvements to the React ecosystem. In this post, we'll explore the key features and how to get started.

What's New in Next.js 15

Enhanced App Router

The App Router in Next.js 15 provides better performance and developer experience:

// app/layout.tsx
export default function RootLayout({
  children,
}: {
  children: React.ReactNode
}) {
  return (
    <html lang="en">
      <body>{children}</body>
    </html>
  )
}

Improved Performance

Better tree-shaking
Optimized bundling
Enhanced caching strategies

Architecture Overview

Here's how a typical Next.js application is structured:

graph TD A[Client Request] --> B[Next.js Router] B --> C{Route Type} C -->|Static| D[Static Generation] C -->|Dynamic| E[Server-Side Rendering] C -->|API| F[API Routes] D --> G[HTML Response] E --> G F --> H[JSON Response]

Getting Started

Create a new Next.js project:

npx create-next-app@latest my-app
cd my-app
npm run dev

Start building your components
Deploy to Vercel or your preferred platform

Next.js 15 makes it easier than ever to build fast, modern web applications!