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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 44m

yeah, this is really bad UX and have been like that forever, I don't understand it's not a top priority to solve for them

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Jovi 🐨 @jovidecroock.com · 8h

Preact 11 is out 🎉 We’ve been hard at work at making our diffing use modern features like moveBefore , leveraging ESM for tree-shaking Preact Compat and ensuring you have a great experience with resumed hydration.

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 10h

Yeah there's even a discussion to potentially rename Composite to Record afaik 😆 we'll see how this goes

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 29/09/2026

Afaik it's not (yet?) part of the Async Iterator Helpers proposal (stage 2), so not sure it can be used to process a stream of prices coming from a streaming backend, but I guess we can expect that to work in the future 👀

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 29/09/2026

👀 Great new JS feature Can be used for sliding window algorithms, such as a moving average Should also work on infinite streams, computing the moving average lazily

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 29/09/2026

👀 A11y update Element.ariaNotify() -> now Baseline Widely Available Triggers a screen reader announcement programmatically Now in all modern browsers (latest versions) -> for now, it can only be a progressive enhancement

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 29/09/2026

👀 AbortController update - AbortSignal.any() -> now Baseline Widely Available - AbortSignal.timeout() -> will be very soon (2.5 years in all browsers) (also in all server runtimes)

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 17/09/2026

This Week In React 297 ⚛️ - DevTools - Motion - Apollo - React Router - React Hook Form - shadcn lint 📱 - Shopify - Expo 58 beta - ExecuTorch - Screenmap - Lynx - Stim - Voltra 🍿 Read: thisweekinreact.com/newsletter/297 ✍️ @jwr.ski & I

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 16/09/2026

💡 JSPI = JavaScript Promise Integration for WebAssembly "Await for Wasm code" Now in all browsers 🎉 Recently added to Safari and Firefox Looks like an important primitive for native languages C/C++/Rust, etc compiling to Wasm

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 15/09/2026

💡 OpaqueRange is nice This inspired me this universal syntax highlighter that works with a gpu model to highlight a <textarea> The fun part is that you can mix multiple languages within the same <textarea> 🤪 github.com/slorber/gpu-...

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 14/09/2026

👀 React Native 0.88 + React 19.3 🎉 The React version upgrade was recently merged into main The 0.88 branch is already cut, RC.0 already released The commit was cherry-picked so it should still be included 👍

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 14/09/2026

👀 React DevTools v8.0 Now available on Chrome Web Store chromewebstore.google.com/detail/react...

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 14/09/2026

👀 These JS features -> now Baseline Widely Available: - Object.groupBy() / Map.groupBy() - Promise.withResolvers() - Element.checkVisibility() - ArrayBuffer.transfer() Available in all browsers since March 2024

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 11/09/2026

Really? Didn't know, what's the process to ship native faster? It's only for security vulnerabilities?

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 11/09/2026

I don't know, Michael Jackson seem to agree this is the right time for this move, at the same time previously pushed for moving more things to servers (easier in RN to do OTA + server-driven UI Also:

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 11/09/2026

See also my opinion bsky.app/profile/did:...

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 11/09/2026

IMHO this choice is questionable, we'll see soon 🤪 Worth reading why RN remains relevant here: x.com/aleqsio/stat...

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 09/09/2026

This Week In React 296 ⚛️ - React 19.3 - DevTools - Next.js chunking - cn - 3D Maps - Effective-RSC - Vidact - Unified Flow 📱 - 0.88 RC - Expo Modules v2 preview - RN QuickJS - Goldie - ContinuedTask 🍿 Read/subscribe: thisweekinreact.com/newsletter/296 ✍️ @jwr.ski & I

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Reposted by Seb ⚛️ ThisWeekInReact.com

React @react.dev · 09/09/2026

React 19.3 is now available! This release makes View Transitions and Fragment Refs stable, and adds browser(), Trusted Types support, and Context in Server Components. react.dev/blog/2026/09...

react.dev

React 19.3 – React

The library for web and native user interfaces

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 10/09/2026

Afaik RN has something like this Testing new versions against many community libraries such as Reanimated, Skia, Gesture Handler etc

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 09/09/2026

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 09/09/2026

🚨 React v19.3 is out! TLDR: - <ViewTransition> → stable - Fragment Refs → stable - use(browser()) to opt out of SSR - RSCs can render <Context>, no <Provider> wrapper needed - Trusted Types support, useful alongside CSP to prevent XSS 🔗 react.dev/blog/2026/09...

react.dev

React 19.3 – React

The library for web and native user interfaces

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 09/09/2026

Oups, forgot to post the demo video 😇

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 09/09/2026

It's using <Model3D> with a wrapper component providing the animation Fun 3D result visgl.github.io/react-google...

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 09/09/2026

👀 React Google Maps 1.10 Completed its existing Google Maps 3D support with declarative components GLB models, HTML markers, polylines, polygons, terrain flattening, and circular paths The balloon is a 3D marker - animated GLB model

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 09/09/2026

Also related, React tools for your AI agents bsky.app/profile/seba...

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 09/09/2026

👀 React DevTools v8 is coming The changelog is already merged and gives a sneak peek. ⚠️ Not published yet on npm or extension stores. I don't know you, but I feel like React 19.3 is coming 😇 github.com/react/react/...

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 09/09/2026

👀 react-devtools-cdt-mcp The React team is experimenting with a new tool for agents to understand your app at runtime This is not an MCP This lets Chrome DevTools MCP discover/register/expose React-related tools Looks like pkg is getting ready for its 1st npm publish github.com/react/react/...

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 03/09/2026

I'm still wondering what will be the release cadence of major versions once this happens. It looks to me that for RN to keep improving, it will still have release breaking-changes regularly

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 03/09/2026

Don't expect 1.0 next month; this will be rolled out incrementally, probably over a few releases. But once all the public API surfaces are stable and clearly documented, it seems plausible that React Native is in a good-enough state to respect SemVer and release v1.x with no breaking changes

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 03/09/2026

👀 React Native 1.0 - finally coming? In our latest RN headline, we caught an important RFC and dozens of WIP PRs to clarify the public C++ API This follows the "Stable API" work already done on JS/TS/Java/Kotlin To me, this looks like one of the last remaining important pieces needed for 1.0

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 03/09/2026

You might have missed this, but on X everyone is talking about StyleX lately 👀 Here's our latest headline to catch up

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Reposted by Seb ⚛️ ThisWeekInReact.com

Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 02/09/2026

This Week In React 295 ⚛️ - StyleX - browser() - Next.js - Compiler in Vite/Bun - Astryx - Formisch - React Aria - TanStack 📱 - C++ API - Margelo+Callstack - Observe - Reanimated - Teleport - Nitro - Screen Transition 🍿 Read thisweekinreact.com/newsletter/295 ✍️ @jwr.ski & I

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 03/09/2026

more news like this one every week in the newsletter bsky.app/profile/did:...

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 03/09/2026

more news like this one every week in the newsletter bsky.app/profile/did:...

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 02/09/2026

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 02/09/2026

👀 Out-of-order streaming Now in the HTML spec 🎉 github.com/whatwg/html/... The "list" placeholder gets replaced by the template that appears later in the document. Already in Chrome/Edge Positive positions from other browsers Maybe this can power React Suspense for SSR in the future? 👀

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 02/09/2026

<ViewTransition> + Fragment refs are first coming to React-DOM But there's work in progress toward bringing these to React Native as well (many PRs), and that intent is already documented.

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 02/09/2026

We already had a hint from the Next.js team on Reddit / X 2 weeks ago, and the typedefs PR (still a draft today) confirms what's likely to come

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Seb ⚛️ ThisWeekInReact.com @sebastienlorber.com · 02/09/2026

👀 React 19.3 - You can already sense what’s brewing Just follow the types to get a sneak peek 🤪 Top 3 changes: ✅ <ViewTransiton> / addTransitionType stable ✅ Fragment ref stable ✅ React-DOM browser() API 🆕 ViewTransition + Fragment refs ➡️ designed to be cross-renderer

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