Next.js 15: What’s New and Why It Matters for Developers

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Introduction

Next.js 15 is here, and it’s ready to make web development smoother, faster, and more secure. This stable release includes key updates to caching, request handling, React 19 support, and more. With a focus on enhancing developer experience and app performance, Next.js 15 brings several breaking changes along with improvements that make your workflow easier and your apps more powerful.

In this article, we’ll dive into the detailed features of Next.js 15, how they work, and how you can make the most out of this release. Whether you’re updating an existing project or starting a new one, these insights will help you seamlessly integrate Next.js 15.

1. Smooth Upgrades with @next/codemod CLI

Upgrading to Next.js 15 is now easier with the enhanced @next/codemod CLI. This tool automates code transformations to help you quickly adapt to the breaking changes introduced in this release. It helps upgrade your codebase to both stable and prerelease versions, allowing you to stay ahead of the curve.

To upgrade, simply run:

npx @next/codemod@canary upgrade latest