Who said you need to recompile the whole app to just update the React Native JavaScript bundle?

Hold my IPA 🍺

example PR introducing performance regression by mdjastrzebski · Pull Request #80 · callstack/reassure-examples Summary This PR intentionally introduces performance regression to showcase how Reassure detects and present such case. Test plan

Check it out yourself: github.com/callstack/re...

Reassure can automatically catch performance regression in your PR-s ✨

I’ve updated the our examples to show how it works in action:

✨ Pkg Stats now lets you compare multiple packages!

$ npx pkg-stats <package1> <package2> ...

Now you can check the most popular date handling package (or anything else)! 👀

🔗 github.com/mdjastrzebsk...

NPM weekly downloads for vite Total: 18,901,310 last week By major version: 6.x 3.2M 5.x 12.3M 4.x 2.9M 3.x 0.4M 2.x 0.2M

Vite 6 adoption should accelerate now that Vitest 3 is out. Although we expect to still see some usage of Vite 4, Vite 5 was released more than a year ago, and most frameworks and tools supported it from day one. Are you still using Vite 4? Is there something preventing you from upgrading?

You mean vanity-checking stats of my OSS projects? 😂

This is showing NPM weekly downloads for a package, so that maintainers and users easily see which versions are the most popular.

what a coincidence 😀

Of course it's open source: github.com/mdjastrzebsk...

Want to quickly check NPM package popularity?

✨ I've built a tiny, beautiful terminal tool to check package stats. No setup needed, just run:

$ npx pkg-stats <package>

Let me know what you think!

A lot of React Native Testing Library users are still on ver. 7, 9, and 11. These were great... like 2-4 years ago 😯

It’s time to upgrade! 🚀

Release v13.0.0 · callstack/react-native-testing-library 13.0.0 (2025-01-03) Migration guide Important Changes Enabled concurrent rendering by default Automatically extend Jest matchers, you no longer need to import @testing-library/react-native/extend-...

ℹ️ Release info
github.com/callstack/re...

🚀 React Native Testing Library v13 is here!

What’s new?
✅ Concurrent rendering by default
✅ React 18 & 19 support (for RN 0.78)
✅ Faster tests, better DX

TIL: default params in JS are evaluated:
✅ when the function is called
❌ not when it's defined

Why does Xcode default to putting build output (DerivedData) in ~/Library/Developer/Xcode/DerivedData by default? 🤔

Wouldn't it be way more practical to keep it in the project directory? Easier to find, clean, cache, and manage overall.

What am I missing here?

The best build is no build

Not again ...

Release v13.0.0-rc.0 · callstack/react-native-testing-library 13.0.0-rc.0 (2024-12-13) Migration guide Important Changes Enabled concurrent rendering by default Automatically extend Jest matchers, you no longer need to import @testing-library/react-native/ex...

github.com/callstack/re...

There is not a lot of breaking changes but the migration guide might come handy 👇
callstack.github.io/react-native...

React Native Testing Library v13 is now in RC! 🎉
Releasing on Friday the 13th—what could possibly go wrong? 🙈
Upgrade and let us know if anything breaks.

0.x versions 🤝 refactors

I've noticed a curious thing about yarn vs pnpm:

- yarn: deleting and recreating `yarn.lock` after changing deps creates different (cleaner?) lock file
- pnpm: recreating lock files generates exactly the same file

🤔

GitHub - callstack/byorg-ai: TypeScript framework for writing chatbot applications TypeScript framework for writing chatbot applications - callstack/byorg-ai

Why Byorg AI?
🔹Perfect for custom company-specific apps
🔹Composable, easy-to-maintain, and scalable architecture.
🔹Works with any AI provider (API or local) via @vercel AI SDK.
🔹Pre-built @SlackHQ & @discord integrations, easy to add more.

github.com/callstack/byorg-ai

✨ Introducing Byorg AI - an open source framework to bring your organization an AI that’s:
🔹 self hosted
🔹privacy oriented
🔹aware of company information you feed into it
🔹using familiar Slack or Discord UI
and what’s best - you can deploy it within minutes.

Together with @q1w1n.bsky.social we’re at Future Conf in Krakow today, talking about how we built @callstack.com internal chatbot. 🎙️

And that’s not all—we’ve got something exciting to announce. Let’s just say… it might be something open source. ✨

Stay tuned!

React v19 – React The library for web and native user interfaces

React 19 is now stable! This is an important milestone! react.dev/blog/2024/12...

Living on the bleeding edge 😉

Release 0.77.0-rc.0 · facebook/react-native Breaking Bridgeless: Make NativeModules.foo load turbomodules (unset turboModuleProxy in bridgeless). (cc5f17d5a2 by @RSNara) dev-middleware: Frameworks should specify serverBaseUrl relative to th...

📢 React Native 0.77 is in RC now!

This release still uses React 18.3, due to waiting for React 19 go from RC to stable.

github.com/facebook/rea...

Release v12.9.0 · callstack/react-native-testing-library 12.9.0 (2024-11-27) ✨ Features User Event type(): add skipBlur option (#1704) (1973cbc) 📚 Documentation tweaks (393d84c) v13 docs & migration guide (#1709) (6bdc86b)

🦉 React Native Testing Library 12.9.0 is out 🎉

Highlights:
- official support for React Native 0.77 and Expo 52
- adds skipBlur option for User Event type()

github.com/callstack/re...

🔎 Breaking changes concern removing deprecated features:
- React 16 & 17 support
- *ByA11yState, *ByA11yValue queries
- custom Jest preset
- debug.shallow

💡 Check out the migration guide: callstack.github.io/react-native...