Expo SDK 57 will be the easiest upgrade you've ever made. One command. No breaking changes. And boom, you're on React Native 0.86. It's also the first step toward a new release cadence we're considering: optional, non-breaking upgrades between the big SDKs: try.expo.dev/bluesky-sdk57

Expo SDK 57 - Expo Changelog

Check out new updates and improvements to Expo and EAS from the Expo team.

try.expo.dev

Trust your instincts. If your app feels slow today, there's probably a cold-start regression on a specific build, on specific devices... this has always been a difficult problem to identify. Now it's not. Our new "Observe" service is in open beta, free up to 10k MAUs. → try.expo.dev/observe-beta...

Introducing Observe: Performance monitoring for Expo apps

EAS Observe shows how your React Native app really performs for real users: startup speed, per-screen metrics, and release regressions.

try.expo.dev

Do I know any React Native developers here? Looking forward for you to try out our new SDK for React Native observability. Feedback is welcome!

mobile app observability@measure.sh · 2mo ago

The Measure React Native SDK is out 🚀 session timelines · error monitoring · traces · bug reports · network monitoring · clean Hermes stack traces Everything @measure.sh does, now on RN (including @expo.dev). Get to the root cause- measure.sh/docs/sdk-int... #reactnative #androiddev #iOSDev

🚨New Video for the first time in awhile 😅! Introduction To React Native WebGPU 🔥. It took a really long time to understand Graphics enough to make this video so I hope it helps a lot of people! youtu.be/vons_XypdQw?...

Intro to 3D Graphics with WebGPU and Expo

YouTube video by Daniel Friyia Jr

youtu.be

App.js is one of the biggest events in the React Native & Expo world every year. Can't make it to the conference in person? We're bringing the App.js experience to Kiel! 📺 Live talks 💬 Interesting Discussions 🍻 Drinks sponsored by bitglow Would love to see the local mobile dev community there 👋

SDK 56 beta is out 😅 ◆ 50%+ faster iOS builds ◆ 40% faster Android cold starts ◆ Expo UI + iOS widgets now stable ◆ expo-router rebuilt from scratch ◆ Inline native modules + brownfield multi-app support Strong "speed and stability" theme in this one: try.expo.dev/bluesky

Expo SDK 56 Beta is now available - Expo Changelog

Check out new updates and improvements to Expo and EAS from the Expo team.

try.expo.dev

JSON.stringify() turns your Date into an ISO string. JSON.parse() gives you back a string - not a Date! TypeScript won't warn you. Your app crashes at runtime. 💀 I hit this in a persisted Zustand store recently. Read more: 👇 www.bitglow.de/blog/date-se... #TypeScript #Zustand #ReactNative

Serializing Date Objects in Persisted Data Stores

Getting 'is not a function' on a Date object? Learn why JSON.stringify breaks Dates in persisted Zustand stores and how to fix cryptic runtime errors.

bitglow.de

Touch the grass 🌿 Made with React Native + WebGPU

React Native 0.85 is now available! This release includes the New Animation Backend, selection data in TextInput onChange events, Metro TLS support, and moves the Jest preset to a dedicated package. reactnative.dev/blog/2026/0...

React Native 0.85 - New Animation Backend, TextInput Selection Data, New Jest Preset Package · React Native

Today we are excited to release React Native 0.85!

reactnative.dev

That’s huge! …I mean tiny. You know what I mean 😁

Expo@expo.dev · 4mo ago

EAS Update in SDK 55 now supports bundle diffing. Devices download a small binary patch instead of the full JavaScript bundle. A typical 3MB update drops to ~0.75MB. Opt-in now, default in SDK 56. https://expo.dev/blog/ship-smaller-ota-updates-bundle-diffing-comes-to-ota-updates-in-sdk-55

Expo Router v55 is here, and it makes native navigation UI a first-class part of routing. ♢ New Stack API ♢ Native toolbars, native tabs, dynamic platform colors ♢ Apple zoom transitions, split view Tour + examples: https://expo.dev/blog/expo-router-v55-more-native-navigation-more-powerful-web

This setup is a must have for large apps.

Oliver Kwast@baumstumpf.bsky.social · 5mo ago

Shipping the “same” app in dev, preview, and production without release chaos? We’re using App Flavors with Expo + EAS to keep builds cleanly separated. Full post: bitglow.de/blog/app-fla... Curious how others structure their builds.

Great post from Julian on how to create app variants with @expo.dev. There’s some neat tricks on how to declare your configs in @typescriptlang.org and also pointers on how to leverage the `extra` property too. Check it out below 👇

Oliver Kwast@baumstumpf.bsky.social · 5mo ago

Shipping the “same” app in dev, preview, and production without release chaos? We’re using App Flavors with Expo + EAS to keep builds cleanly separated. Full post: bitglow.de/blog/app-fla... Curious how others structure their builds.

Shipping the “same” app in dev, preview, and production without release chaos? We’re using App Flavors with Expo + EAS to keep builds cleanly separated. Full post: bitglow.de/blog/app-fla... Curious how others structure their builds.

Less is more: Bundle diffing comes to EAS Update. Instead of downloading the full bundle on every update, devices now receive a binary patch of only what changed. Result: ~75% smaller downloads. ♦ A 3MB update drops to ~0.75MB ♦ Opt-in beta, safe fallback to full bundles expo.dev/blog/ship-sm...

Ship smaller OTA updates: bundle diffing comes to EAS Update in SDK 55

SDK 55 introduces bundle diffing in EAS Update. Devices now download patches instead of full bundles, reducing download sizes by up to 75%.

expo.dev

Expo SDK 55 is out 😅 RN 0.83, React 19.2 & a long list of things that make your app faster, smaller, & easier to build ♦ Hermes bytecode diffing cuts update sizes by ~75% ♦ Brownfield support gets a serious upgrade ♦ MCP now queries EAS + TestFlight crashes Full changelog: expo.dev/changelog/sd...

Expo SDK 55 - Expo Changelog

Learn about the changes and how to upgrade

expo.dev

Working both with React Native and iOS native, I’ve noticed that AI tools seem to be more helpful (at least for me) in React Native projects. Curious if others have similar or completely different experiences?

I published a guide on how to build Instagram-like shared transitions in React Native across all three major platforms: kirillzyusko.github.io/react-native... Even Android Instagram and web don’t have this beauty implemented in their apps - but it’s possible in React Native. Check out how!

The last six months were pretty intense. Two projects with tight timelines and some interesting challenges along the way. So I barely had time to be active here. Time to change that again 🙂 Who from the React Native community is still around?

React Native 0.84 is now available! This release makes Hermes V1 the default JavaScript engine and ships precompiled iOS binaries by default — bringing significant performance improvements and faster build times to all React Native apps. reactnative.dev/blog/2026/0...

React Native 0.84 - Hermes V1 by Default · React Native

Today we're excited to release React Native 0.84!

reactnative.dev

Huge thanks to @expo.dev for featuring our journey with DEPOT on their blog! Big thank you as well to @baumstumpf.bsky.social for the editorial support 🙏 The path to success was built one step at a time - and those incremental improvements compounded to really pay off. 🚀

Expo@expo.dev · 6mo ago

🤑 Learn how bitglow modernized DEPOT's React Native app with Expo Prebuild, cutting upgrade time by 80% & boosting performance scores from 36 to 90. The blog from @bonesyblue.bsky.social is a blueprint for speeding up an RN e-comm app and protecting rev with OTA updates. expo.dev/blog/how-to-...

🤑 Learn how bitglow modernized DEPOT's React Native app with Expo Prebuild, cutting upgrade time by 80% & boosting performance scores from 36 to 90. The blog from @bonesyblue.bsky.social is a blueprint for speeding up an RN e-comm app and protecting rev with OTA updates. expo.dev/blog/how-to-...

We shipped compiler caching for EAS builds today 🎉 30% faster builds (both platforms), free for everyone, literally just set one env var. ccache does the heavy lifting on native compilation. SDK 53+ for Android, 54+ for iOS expo.dev/changelog/co...

Compiler cache for builds and Workflows - Expo Changelog

Control build caching behavior on EAS with environment variables to speed up subsequent builds by up to 30%.

expo.dev

React Native 0.83 is now available! This release includes React 19.2, new React Native DevTools features, and support for new Web APIs. And, it's the first React Native release with no user facing breaking changes. reactnative.dev/blog/2025/1...

React Native 0.83 - React 19.2, New DevTools features, no breaking changes · React Native

Today we are excited to release React Native 0.83!

reactnative.dev

Reanimated 4.2.0 is here, and it brings gifts! 🔥 🎁 Long-awaited Shared Element Transitions 🎉 Not production-ready yet, so they’re behind a feature flag. Please, test it out and give us feedback! 🎁 Experimental performance fixes, inspired by real apps...

👀 You can get a 25% discount today with the code “TODAY25” on my animations course. More info in the thread below 🧵

🆕 This PR from @nishan.dev adds CSS grid support to react native 🙌 It's not possible to overstate how massive this is for all of us. Future generations will celebrate Nishan Bende Day 🐐 github.com/facebook/yog...

CSS Grid by intergalacticspacehighway · Pull Request #1865 · facebook/yoga

Why? CSS grid provides us more control to position children in a two-dimensional layout system. It works as a complimemtary system to Flexbox. Official spec for more details/usage. There are a few...

github.com

I'm preparing my Star Wars themed talk on TanStack DB for next week's React(Native) Kiel meetup. If you're around in Kiel on Monday evening, feel free to join us for some nerdy fun! ⚛️ www.meetup.com/kiel-react-n...

And, coming later in React Native 0.83, you'll be able to profile and understand your app more intuitively, with native support for the Performance panel and Network panel in React Native DevTools.

Folks are downloading react-native on npm over 4 million times a week, that 100% growth from last React Conf!