# Building Modern Web Applications with Next.js 15 Next.js 15 brings exciting new features that make building modern web applications even more powerful and efficient. In this comprehensive guide, we'll explore the key updates and how to leverage them in your projects. ## Key Features in Next.js 15 ### 1. Enhanced App Router The App Router continues to evolve with better performance and developer experience. The new features include: - Improved caching mechanisms - Better error handling - Enhanced streaming capabilities ### 2. Server Components Evolution React Server Components have become more mature with: ```tsx // Example of a Server Component export default async function BlogPost({ params }: { params: { id: string } }) { const post = await fetchPost(params.id); return (

{post.title}

{post.content}

); } ``` ### 3. Improved Performance Next.js 15 introduces several performance optimizations: - Faster bundling with Turbopack - Optimized image loading - Better font optimization ## Getting Started To start with Next.js 15, run: ```bash npx create-next-app@latest my-app cd my-app npm run dev ``` ## Conclusion Next.js 15 represents a significant step forward in React-based web development. The improvements in performance, developer experience, and new features make it an excellent choice for modern web applications.