Software Engineering Daily Next.js 15 with Jimmy Lai and Tim Neutkens
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Dec 5, 2024 
Jimmy Lai, Software Engineering Manager, and Tim Neutkens, Tech Lead for Next.js, dive into the exciting advancements of Next.js 15. They discuss the seamless integration of TurboPack, which significantly speeds up development by reducing recompilation times. The duo also covers the introduction of async request APIs, enhancing dynamic content management. With a focus on the collaboration between Next.js and React 19, they highlight improvements in pre-rendering and form handling, setting the stage for a more efficient web development experience.
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Scaling with Modern Apps
- Modern JavaScript apps use large, consolidated libraries, increasing module counts.
- TurboPack was designed to handle this increased complexity and scale for the future.
TurboPack HMR Improvement
- Next.js 15 ships with TurboPack, improving HMR performance.
- One Vercel app saw a CSS change go from 900ms to 45ms.
Upgrade and Try TurboPack
- Upgrade to Next.js 15 and enable TurboPack for development.
- It significantly boosts development performance, although production builds are still in progress.
