Maciej Jastrzębski

@wojtekmaj91 Great to hear that Wojtek! 🙌

@mdj_dev That was such a no-brainer upgrade 😅 Granted, I was using renderAsync already so it made it easier.

React Native Testing Library v14 is quickly increasing user adoption. Two months after release it's no. 2 most popular ver 🎉 Happy to see it, as it's a big one with fundamental changes: new test renderer and async API. Agents + codemods make keeping up to date much easier 🙌

react native is dead

In order to fix this, I've investigated making a fix in the RN core, to make the system gesture recognizer properly detect pressable-based controls. However, after research I've found that a small native component with UIControl is actually a leaner and cleaner fix ✨ So, I've built a small NPM package just for that: github.com/mdjastrzebski/…

iOS 26 on iPad has a weird quirk. The scroll-to-top activation area extends beyond status bar and overlaps with the typical top bar location. This causes top bar button presses to scroll to the top as well. It's even stranger with the back button, as it scrolls to the top of the previous screen! 🙀 Native iOS apps handle this correctly because the internal _UIDoubleTapInteractionGestureRecognizer which is responsible for this behavior excludes UIControl-based controls. However, React Native (and Flutter, and Chrome, etc) do not use native iOS buttons and so the gesture recognizer is not aware of them! What's more, upcoming iOS 27 extends this behavior to iPhones as well.

👀 New HTTP QUERY method Similar to GET, with a body allowed Safe, idempotent, cacheable There are also headers to: - give the query its own URI (Location) to query again without body - give the response its own URI (Content-Location) to get the same response again

This Week In React 287 ⚛️ - Fragment ref - React Compiler - StyleX - React Router - cnfast - Base UI - Remotion - React Aria 📱 - Reanimated - Widgets - VisionCamera - Test Renderer - Worklets - Legent List - Metro 🍿 Read/subscribe: thisweekinreact.com/newsletter/287 ✍️ @jaworek3211 & I

React Test Renderer is being deprecated. So what comes next for React Native Testing Library? @mdj_dev explains why RNTL needed a new test renderer and what building one reveals about Fiber, HostConfig, and React Reconciler. Learn more 👇 Link below

There is no shortage of AI advice right now. But even AI agents need to get reliable data from somewhere, which is not always available in training data. That’s why we’re updating our guide to React Native performance optimization ⬇️

@thiagobrez ... and goodbye! 🤣

Good morning

@grabbou I wasn't aware that iPhone Air is classified as more powerful than plain iPhone 17 🤔

I put everything what's new into this article ⬇️ callstack.com/blog/on-device…

Huge update to Apple Intelligence ✅ - Image inputs - Skills - Server models Can't wait to drop this for y'all this week to test! Let's go! 🔥

@tjzeldev I just use "go" or "ok"

How I feel every time when claude asks me "want me to implement this?"

Async first API requires usage async/await, so I've prepared codemods to make that transition much simpler. Release info: github.com/callstack/reac… Migration guide: oss.callstack.com/react-native-t…

React Native Testing Library v14 is now released 🎉 This release has been long it the making, and comes with two important changes: 1. Migration to async-first API 2. New Test Renderer replacing deprecated RTR ⬇️

Introducing Apex: a specialized, cost-efficient coding model for React Native. Built by Callstack for the work our engineers do every day: building apps, fixing framework-specific issues, reviewing architecture, and shipping one codebase across platforms. Now opening in private beta.

@grabbou Looks like Yaris but with GR, so I guess GR Yaris 😉

Launch done, time to get this little bad ass for a drive. Guess the model?

For a few weeks we've been building agents that are capable of understanding any app and then autonomously convert it to a React Native app. Powered by agent-device and react-native-best-practices skills from @callstackio and some custom instructions DM if you're interested

@Turbo_Szymon “use thread” 😉

Here is the current idea for background rendering . WDYT?