Hi everyone, Seb and Jan here 👋!

On the React Native side, Hermes-node is quite exciting, although it’s very early.

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⚛️ React

Mini Shai-Hulud worm keeps digging

Remember last week’s TanStack Router compromise? The dangerous worm from TeamPCP keeps compromising users and maintainers across ecosystems, affecting popular packages such as echarts-for-react and @antv, and GitHub actions such as actions-cool/issues-helper. OpenAI employees got compromised, leading them to regenerate code signing certificates. Grafana has been blackmailed by a ransomware group.The Million.js repository was also briefly compromised, but they seem to have gotten lucky: it apparently didn’t affect anyone.

Rumors also link this worm to the Nx Console VSCode extension compromise, and possibly connected to a major GitHub internal repo breach. This story isn’t over — “Mini” feels like a very questionable name 😅!

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• 💸 PlanetScale - Faster apps start with a faster database. Get started with the fastest benchmarked Postgres and MySQL.
• 🗓️ React Norway - 🇳🇴 Oslo - 5 June - Experience the "Rock & React" atmosphere in a unique one-track full-stack festival with 350+ passionate developers. -10% with code "TWIR".
• 📜 React Server Components in TanStack - A pragmatic intro to TanStack’s flexible RSC model, CompositeComponent, and how much it could save in terms of client bundle size.
• 📜 Structural sharing, selectAtom, and why your jotai atoms re-render too much - Explains how deriving atoms, decomposing into primitive atoms, and structural sharing can help avoid re-renders.
• 📜 The React2Shell Story - 2 articles from the duo who reported the security flaw allowing remote code execution in RSC.
• 📜 The Flight Protocol Made Your DoS My Problem - React/Next.js recently patched various CVEs. One of them could block your Node process in a single HTTP request.
• 💸 Certificates.dev - React Free Weekend is coming. Get unlimited access to mid-level training, incl. coding challenges + trial exam for 48H.
• 📦 Fate 1.0 - The first full Async React Metaframework - Fate is a Relay-inspired framework (not based on GraphQL) supporting view composition, normalized caching, data masking, Async React features, live views through Server-Sent Events, Drizzle, garbage collection, and more.
• 📦 TanStack Router releases - Deferred hydration capabilities, route matching priority - Deferred Hydration (experimental, docs) could help improve your page's perceived performance by making it interactive sooner. They also recently introduced CSS inlining and a CSRF middleware.
• 📦 TanStack AI releases - useChat() supports streaming structured output
• 📦 React Redux 9.3 - connect API deprecated, Trusted Publishing fixed - The old HOC API is not removed, but it’s recommended to migrate to useSelector/useDispatch
• 📦 Redux Toolkit 2.12 - TypeScript Improvements, Skills
• 📦 Base UI 1.5 - Major mount perf improvements for popovers/dialogs/tooltips/menus
• 📦 React Hook Form 7.76 - Improved isDirty and useFieldArray
• 📦 Relay 21.0 - First-party TypeScript support, experimental RSC support, improved error handling
• 📦 Storybook 10.4 - TanStack React, React Native isolation, agentic setup, review filters
• 📦 React Doctor 0.2 - Your agent writes bad React. This catches it.
• 📦 React Router 7.15.1 - New unstable_useRouterState consolidation API
• 🎥 Nuno Maduro - Why React Developers Are Leaving Next.js for TanStack, with Tanner Linsley
• 🎥 Fireship - A single PR just hijacked the NPM registry...
• 🎙️ Syntax.fm 1005 - Programatic and Skill based Video Creation with Remotion

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📱 React-Native

• 💸 PostHog - The 7 best session replay tools for mobile apps
• 📜 Unlocking Expo Updates in an Isolated Brownfield Architecture with SDK 55 - Running Expo Updates in Isolated Brownfield was always a challenge. Thanks to recent updates, it is a thing of the past.
• 📜 Changes to project loading behavior in Expo Go - Breaking change for EAS Update users: Expo Go now enforces ownership checks. Self-hosted updates can no longer serve Hermes bytecode bundles.
• 📜 WTF does .box() do in Nitro Modules? - It converts NativeState-backed objects into HostObjects so they can cross worklet runtime boundaries.
• 📜 Build fast, no matter what: how Expo is optimizing for speed (and how you can, too) - Deep dive into Expo's build speed optimizations: hardware scaling, Gradle caching, prebuilt binaries, and fingerprint-based workflows that avoid full rebuilds for JS-only changes.
• 📜 Using TurboModule Substitution to Build Safer React Native Plugin Systems - Explains how React Native Sandbox 0.6 offers granular sandboxing capabilities.
• 📦 Hermes Node - Node.js built-in module compatibility layer for the Hermes JS engine - The creator of Hermes published an AI-driven prototype of a new JS/TS runtime built on Hermes, compatible with Node.js. It won’t outperform Node.js/V8 today, but Static Hermes could make it way faster in the future.
• 📦 Skia Lab - Beautiful react-native-skia demo - A collection of painting, physics, shaders, and gesture interactions demos.
• 📦 ViroReact 2.55 - Ship as a native VR experience on Meta Quest
• 📦 Harness 1.2 - iOS code coverage, permission automation, external xctest commands
• 📦 Expo Speech Recognition 56 - Expo SDK 56 support
• 📦 TypeGPU Confetti 0.3 - Rewritten to use TypeGPU
• 📦 Nitro Fetch 1.3 - Removed box/unbox, fixed binary responses, performance improvements
• 📦 Agent Device 0.15 - Faster boot and test replay, iOS replay speedup, MCP discovery-only
• 📦 View Shot 5.1 - iOS 17 compatibility, Windows support + example, Android ScrollView fix
• 📦 Rozenite DevTools 1.10 - Network, Performance, Vite plugin improvements
• 🎥 William Candillon - Debriefing Redraw & TypeGPU
• 🎥 Beto - Everything new in Expo SDK 56
• 🎥 React Native Live Ep 11 - Building High-Performance UI with React Native Skia / William Candillon
• 🎙️ RNR 353 - Building React Native Apps in the AI Era

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🔀 Other

• 👀 Explicit Resource Management reached TC39 stage 4 - A TC39 meeting is in progress, and many proposals have progressed. The most “user-facing” one – using – is going to be part of the standard and simplify your resource cleanup logic. I take the opportunity to show you how to leverage it immediately in Vitest/Jest tests.
• 👀 npm RFC - Make install scripts opt-in - It’s great to see npm finally looking to catch up on security! They’d like to introduce an allowScripts map in package.json to help mitigate the recent supply chain attacks.
• 👀 Bun PR - Rewrite Bun in Rust - The bold, AI-driven PR landed in just one week, making Bun’s migration from Zig to Rust official. 🤯
• 📜 Declarative partial updates - New exciting APIs may come to the web platform: out-of-order streaming, and new HTML insertion methods supporting streaming. Already available in Chrome 148 behind an experimental flag.
• 📜 QUIC and HTTP/3 Come To Node.js (finally) - A 5-part deep dive on the experimental node:quic API.
• 📦 pnpm 11.12 - Experimental Rust install engine - pnpm is also migrating to Rust, with an incremental strategy. This release introduces an opt-in for the new Rust engine to power the install phase.
• 📦 Yarn 4.15 - Add npmMinimalAgeGate: 1d release cooldown by default - Another package manager adopts better security defaults. BTW, Yarn is also being rewritten in Rust.
• 📦 Node 26.2 - stream.compose stable, fs.stat() returns Temporal.Instant
• 📦 Webpack 5.107 - Experimental HTML modules, experimental native TS support

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🤭 Fun

See ya! 👋