Ahead of our upcoming Next.js Conf 2025, Next.js 16 is now available. This release provides the latest improvements to Turbopack, caching, and the Next.js architecture.

Next.js 16

React Compiler 1.0 is available today. React Compiler is a build-time tool that optimizes your React app through automatic memoization.

React Compiler v1.0 Released

React Compiler can be adopted incrementally, allowing you to try it on specific parts of your codebase first. This guide shows you how to gradually roll out the compiler in existing projects.

Incrementally Adopt React Compiler

React 19.2 is now available on npm! This is our third release in the last year, following React 19 in December and React 19.1 in June. In this post, we’ll give an overview of the new features in React 19.2, and highlight some notable changes.

React 19.2

Addressing a surge in package registry attacks, GitHub is strengthening npm’s security with stricter authentication, granular tokens, and enhanced trusted publishing to restore trust in the open source ecosystem.

GitHub's plan for a more secure npm supply chain

Cloudflare experienced a significant outage on September 12, 2025, affecting its Tenant Service API, multiple APIs, and the Cloudflare Dashboard. The company has confirmed that the incident was primarily triggered by a React programming bug that caused excessive API calls, overwhelming critical infrastructure components.

Cloudflare API Outage Caused by React useEffect

Sign up and we will send you emails when we have new React 19 tips, tools, and techniques like this cheat sheet by Kent C. Dodds

React 19 Cheat Sheet from Epic React

Sometimes npm packages are compromised and published with malware. Luckily, there are companies like [Socket], [Snyk], and [Aikido] that detect these compromised packages early. The npm registry usually removes the affected versions within hours. However, there is always a window of time between when the malware is published and when it is detected, during which you could be exposed. Fortunately, there are some things you can do with pnpm to minimize the risks.

pnpm on Mitigating Supply Chain Attacks

Styled-components are officially in maintenance mode. No new features or major updates should be expected. Only critical bug fixes and security patches will be addressed from now on.

Styled-components are officially in maintenance mode

Tailwind CSS v4.0 is an all-new version of the framework optimized for performance and flexibility, with a reimagined configuration and customization experience, and taking full advantage of the latest advancements the web platform has to offer.

Tailwind CSS v4.0 released

In this guide, I’ll break down the key concepts behind performance testing and walk you step-by-step through building your site speed testing tool using Puppeteer.

Jonathan Kemp

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