Nostr notes by Expo

SDK 56 beta is out 😅 ◆ 50%+ faster iOS builds ◆ 40% faster ...

2026-05-07T19:43:22Z

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](https://try.expo.dev/bluesky )

[Expo SDK 56 Beta is now availa...](https://try.expo.dev/bluesky )

Seth is different. He can zoom out & see all the layers of a ...

2026-04-20T15:44:22Z

Seth is different.

He can zoom out & see all the layers of a problem.

He knows what to say. And what to build. And how to build it.

What's possibly most impressive is that he delivers all this perspective with warmth and joy. It's infectious.

We're lucky to have him!

[expo.dev/blog/seth-we...](https://expo.dev/blog/seth-webster-joined-expo )

[I joined Expo.](https://expo.dev/blog/seth-webster-joined-expo )

🙌 Introducing Expo Agent Build truly native iOS and Android ...

2026-03-10T16:25:59Z

🙌 Introducing Expo Agent

Build truly native iOS and Android apps from a prompt. Anything from React to SwiftUI to Jetpack Compose.

Compile and deploy for Apple, Android, and the web right from the browser!

[youtu.be/3yyy32R0s2k](https://youtu.be/3yyy32R0s2k )

[Introducing Expo Agent (beta):...](https://youtu.be/3yyy32R0s2k )

Expo Router v55 is here. ♢ Native navigation UI, built like ...

2026-03-02T16:33:47Z

Expo Router v55 is here.

♢ Native navigation UI, built like React (Stack API, toolbars, native tabs)
♢ Dynamic platform colors, zoom transitions
♢ Better iPad support with split view
♢ Stronger web story with expo-server, headers, experimental SSR + loaders

Blog + demos: [expo.dev/blog/expo-ro...](https://expo.dev/blog/expo-router-v55-more-native-navigation-more-powerful-web )
https://enoki.us-east.host.bsky.network/xrpc/com.atproto.sync.getBlob?did=did:plc:xinso5nzzhsfncnr5rtsoqba&cid=bafkreicy7ovt42sh5lufehbxsh6ty2eyi2ew326djjowmkoq4kmpjhuh3y

Expo SDK 55 is out 😅 RN 0.83, React 19.2 & a long list of ...

2026-02-26T00:11:52Z

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...](https://expo.dev/changelog/sdk-55 )

[Expo SDK 55 - Expo Changelog](https://expo.dev/changelog/sdk-55 )

Expo SDK 55 beta is out now 🧪 (RN 0.83.1 + React 19.2) ♢ ...

2026-01-22T23:12:55Z

Expo SDK 55 beta is out now 🧪 (RN 0.83.1 + React 19.2)

♢ Legacy Architecture removed
♢ New default template (Native Tabs + /src/app)
♢ Hermes v1 opt-in
♢ Hermes bytecode diffing for smaller OTA updates
♢ More native Router features + better “Expo in native apps” support

[expo.dev/changelog/sd...](https://expo.dev/changelog/sdk-55-beta )

[Expo SDK 55 Beta is now availa...](https://expo.dev/changelog/sdk-55-beta )

𝝠 Expo SDK 54 is LIVE 🚀 ◆ React Native 0.81 ◆ ...

2025-09-10T20:20:59Z

𝝠 Expo SDK 54 is LIVE 🚀

◆ React Native 0.81
◆ Precompiled RN for iOS → faster clean builds
◆ iOS 26 Liquid Glass icons + views
◆ Android 16 target, edge-to-edge default
◆ Router v6 native tabs
◆ Updates: header overrides, progress, reload screen
◆ So much more...

[expo.dev/changelog/sd...](https://expo.dev/changelog/sdk-54 )

[Expo SDK 54 - Expo Changelog](https://expo.dev/changelog/sdk-54 )

SDK 54 beta is out 🚀 ◆ RN 0.81 + React 19.1 ◆ Precompiled ...

2025-08-19T19:47:49Z

SDK 54 beta is out 🚀

◆ RN 0.81 + React 19.1
◆ Precompiled React Native for iOS → ⚡ faster builds
◆ iOS 26 Liquid Glass icons + Expo UI
◆ Android 16 edge-to-edge + predictive back
◆ Updates to EAS Update + Autolinking
◆ Final release w/ Legacy Arch

Details in the changelog: [expo.dev/changelog/sd...](https://expo.dev/changelog/sdk-54-beta )

[Expo SDK 54 beta is now availa...](https://expo.dev/changelog/sdk-54-beta )

EAS Update is more than a way to fix bugs fast. It’s a ...

2025-08-07T14:29:00Z

EAS Update is more than a way to fix bugs fast. It’s a deployment superpower if you know how to use it. Here are a couple examples from the blog:

◆ Safe Continuous Deployment
◆ Simplifying an already-frequent release schedule
◆ For more frequent releases
◆ Hot-fixes only

[expo.dev/blog/eas-upd...](https://expo.dev/blog/eas-update-best-practices )

[Streamline your mobile app dep...](https://expo.dev/blog/eas-update-best-practices )

🦀📲 We're hosting a meetup next month in Seattle next to ...

2025-07-31T20:09:43Z

🦀📲 We're hosting a meetup next month in Seattle next to Pike Place Market. If you're in town you should come!

hailey (npub1xfe…cn4d) from Bluesky (npub1nfl…nul3) & [@reedharmeyer.bsky.social](https://bsky.app/profile/reedharmeyer.bsky.social ) from [@skylight.social](https://bsky.app/profile/skylight.social ) are going to speak and [@jim.bsky.social](https://bsky.app/profile/jim.bsky.social ) is gonna grill.

RSVPs appreciated: [app.getriver.io/beta/events/...](https://app.getriver.io/beta/events/bluesky-and-expo-or-august-meetup-kvc )
https://enoki.us-east.host.bsky.network/xrpc/com.atproto.sync.getBlob?did=did:plc:xinso5nzzhsfncnr5rtsoqba&cid=bafkreiffwtvgzz3zjzpgtcedvx22v6yke4ohyz7frde5gc4sxyierjobei

🙌 SDK 53 is out now! It's a chunky release so take your ...

2025-05-01T15:14:31Z

🙌 SDK 53 is out now!

It's a chunky release so take your time combing through the post below. Couple highlights:

◆ The New Arch is now default everywhere
◆ Edge-to-edge is default for all android projects
◆ expo-background-task (no more background-fetch)
◆ expo-maps alpha!

[expo.dev/changelog/sd...](https://expo.dev/changelog/sdk-53 )

[Expo SDK 53 - Expo Changelog](https://expo.dev/changelog/sdk-53 )