Getting Started with Next.js 15: A Complete Guide

Next.js 15 brings exciting new features and improvements that make building modern web applications even more powerful and efficient. In this comprehensive guide, we'll explore everything you need to know to get started.

What's New in Next.js 15

Enhanced App Router

The App Router continues to evolve with better performance and new capabilities:

• Improved file-based routing
• Enhanced nested layouts
• Better error handling

Server Components

Server Components are now more stable and feature-rich:

• Reduced bundle size
• Better performance
• Simplified data fetching

Improved TypeScript Support

Next.js 15 offers enhanced TypeScript integration:

• Better type inference
• Improved error messages
• Enhanced IDE support

Setting Up Your First Project

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

Key Features to Explore

1. File-based Routing: Organize your pages intuitively
2. API Routes: Build full-stack applications
3. Image Optimization: Automatic image optimization
4. CSS Support: Built-in CSS and Sass support

Best Practices

• Use Server Components when possible
• Implement proper error boundaries
• Optimize images and fonts
• Follow the recommended project structure

Next.js 15 is a powerful framework that continues to push the boundaries of what's possible with React applications.