#490 — September 11, 2026 |
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What's New in React 19.3 |
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React 19.3 is here with a huuuge release post (that's packed with examples) bringing two anticipated APIs out of experimental status, as well as some Server Components additions. Here are some of the goodies:
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💡 For a hands-on feel, Chris Coyier's review of |
Elsewhere, < |
Live Components Deserve Live Data, Not a Stale Cache — Your components re-render instantly, but they read a cache that's minutes behind, because the live query is too slow to hit every render. TimescaleDB extends Postgres so dashboards query live data fast at scale. Get $1000 credit to start. Tiger Data (creators of TimescaleDB) sponsor |
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Native is Now the Future of Mobile at Shopify — Six years after going all-in on React Native, Shopify is rebuilding its apps in Swift and Kotlin, arguing coding agents have cut the cost of building the same features twice. We also learn what's going to happen to React Native Skia, FlashList and Restyle. Shopify Engineering |
📊 A companion post covers the 12-week Shop app rewrite, with before-and-after startup, stability and app-size metrics. |
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IN BRIEF:
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React Now Rusted All the Way Out — A team moved a 1000+ file React Router app onto oxc's Rust port of the React Compiler and watched the compile step drop from 14.3s to 0.81s. Better still, the port already handles patterns the Babel-based 1.0 skips, and the post ends with the Vite config to make the switch. Andrew Patton |
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📄 What It Actually Takes to Migrate Discord to React Native's New Architecture – Only 14% of the tickets covered the migration itself. The rest was all in the long tail. Kamil Delekta (Software Mansion) 🤖 How the Next.js Team Closed 1,500 GitHub Issues in One Month – You won't be surprised that agents were involved. Marcos Hernanz (Next.js) 📄 Your React App Can Unmount When a Reader Turns On Chrome Translate – Why the classic 📄 The Golden Switch: Migrating From Gatsby to Astro in Under 9¾ Days – Keeping their React components, after substantial prep work. Evil Martians |
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🛠 Code, Tools & Libraries |
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Jotai 3.0: A Leaner, ESM-Only Release of the Atomic State Manager — The familiar hooks remain, but the package is modernized: ESM only, React 18 and TypeScript 5.5 minimums, Daishi Kato |
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React Native ExecuTorch 0.10: Run AI Models On-Device — A ground-up rewrite of the on-device AI library. Opaque native modules give way to inspectable TypeScript pipelines you can tweak and chain (no C++ needed), with Core ML, MLX and Vulkan acceleration underneath. The homepage shows what it can do. Software Mansion |
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Vidact: Compiles React Components Down to Direct DOM Code — A compiler that takes React-style function components and hooks and emits direct DOM operations, a la Solid, with no VDOM or React runtime in the bundle. Beta, and unsupported React patterns will fail at build time. Mohamad Mohebifar |
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