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βοΈ This Week In React #270: Next.js, React Router, TanStack, Ink, Async, AI | Hermes, React Navigation, CSS Grid, Maestro, QuickPush, Screens, Expo Skills, Async Storage | Node, Oxfmt, TypeScript, Border Shape, Sprites
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βπ Read Online β Hello everyone, Krzysztof and Kacper from Software Mansion here π The React Foundation officially launched. Cloudflare rebuilt the whole Next.js in a week using AI. In the meantime, the real Next.js is adding version-matched docs so agents always have context on new and recently updated APIs. On the React Native side, Hermes is moving beyond mobile: Hermes-node brings the engine to Node.js as a potential V8 swap. CSS Grid is also coming to React Native, and TanStack Router has an early PoC running natively. Let's dive in! As always, thanks for supporting us on your favorite platform:
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βHow we rebuilt Next.js with AI in one weekβ A single Cloudflare engineer rebuilt the Next.js API surface (App Router, RSC, Server Actions, middleware) on Vite in one week using AI for $1,100. Using Oxc/Rolldown, it builds 4.4x and produces 57% smaller bundles. Using the Vite Environment API, it overcomes OpenNext limits, making it compatible with edge runtimes such as Cloudflare Workers. What started as a bold experiment became vinext. It passes 2000+ tests and has 94% test coverage of the Next.js 16 API surface. The This AI-driven port was only possible because Next.js has a well-documented API surface and a comprehensive test suite. A reminder of something TDD practitioners have known for years, but seems more important than ever today: the real value lies in the specification, the test suite, and the API design. Even Guillermo Rauch now believes that most software will start as markdown spec files implemented by coding agents. In Tests Are The New Moat, the author argues that we may see more open-source projects with private test suites: thatβs what SQLite is already doing.
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βHermes-nodeβ Tzvetan Mikov from the Hermes team announced Hermes-node, a CLI version of Hermes compatible with the Node.js API. Since Hermes-node acts as a compatibility layer, it can use original Node.js module implementations without needing to rewrite them - most work out of the box. You can think of this as simply swapping the V8 engine for Hermes. If combined with compiling Hermes to binary code, this feature could bring significant benefits to the entire Node.js ecosystem.
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βοΈ This Week In React
π₯ Keeps React and React-Native experts up to date! Join 34k+ devs for one email per week.
π Read Online Hi everyone, Krzysztof and Filip from Software Mansion here π! Big releases anchor the week. React Email 6.0 consolidates a fragmented ecosystem into one package, unlocking an embeddable editor and more reliable HTML rendering across mailboxes. On mobile, Marc Rousavy shipped VisionCamera v5 with a full Nitro Modules rewrite, Worklets integration, pro controls, and a modular plugin architecture.Heads up on the Vercel April 2026 incident: rotate your integration tokens if you use...
π Read Online Hi everyone, Seb and Jan here π! This week we finally have an experimental version of TanStack RSC! A new React DoS vulnerability affects Server Functions, so you probably need to upgrade React again. There are also important releases from the MUI team, and Styled Components is still alive! On the React Native side, we got a new universal Haptics library, and a much faster fetch alternative. We heard VisionCamera 5 is around the corner. Let's dive in! As always, thanks for...
π Read Online Hi there, Seb and Jan here π! This week brings a collection of smaller, yet still noteworthy, React releases and articles. On the React Native side, v0.85 just dropped with a new Shared Animation backend. Speaking of animations, we have a little sneak peek of exciting things coming, such as <ViewTransition> and Skia Graphite. With the recent surge in npm supply chain attacks, itβs worth reviewing the npm Security Best Practices guide to secure your setup. Let's dive in! As...