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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...

expo.devExpo SDK 55 Beta is now available - Expo ChangelogLearn about the changes, how to try it out, and how to give feedback.

22/1/26, 11:12 pm9 reposts39 likes

Pavlos Vinieratos (pvinis)

@pav.vin

23 Jan

I see that `CHANGELOG.md` is a link to a website. Probably whats not what you meant, right? either link to your file or get rid of that link? Its a bit confusing otherwise.

Expo

@expo.dev

24 Jan

Our sdk release notes have always been on our changelog. Not a mistake.

Pavlos Vinieratos (pvinis)

this is what I mean:

Ahhh yes. Thank you. That is a mistake!

Reed Harmeyer

@reedharmeyer.bsky.social

22 Jan

Might give this a try this weekend!

Expo

@expo.dev

24 Jan

Let us know what you think!

Samuel

@samuel.fm

24 Jan

very excited for Hermes v1!

Akporhiegbe Michael

@akporhiegbemike.bsky.social

22 Jan

Love seeing this from @expo.dev SDK 55 pushing things forward with better performance, and stronger native support is a big win for modern apps. At Plutoid, we’re all about fast, clean, and fair social experiences so improvements like Hermes optimizations and native router upgrades really matter.

Asenath Bahiti

@asenathbahiti.bsky.social

22 Jan

Huge release 👏. The bytecode digging for smaller OTA updates is especially exciting -- that's going to make a real difference from team shipping fast. Curious how SDK 55 feels performance-wise on larger apps so far ?