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COMPARE — On August 5, Expo published a head-to-head of three AI models actually building Expo apps. Fable 5 came out ahead on code and UI qualitySDK — Expo SDK 57 is a small, focused release centered on moving apps to React Native 0.86 without turning the upgrade into a project of its ownPREBUILD — expo prebuild now clears and regenerates the native android and ios directories by default, which matters if you have hand-edited native codeOTA — Hermes bytecode diffing means an OTA update ships only the delta rather than the whole JS bundle, saving bandwidth and cost at scaleSIMULATOR — Rork streams a cloud iOS simulator to your browser, so you can test in a real Apple environment without Xcode or Mac hardwareHARDWARE — Rork reaches HealthKit, ARKit and LiDAR, NFC, Dynamic Island, and Metal 3D, well past where no-code tooling usually stopsCOMPARE — On August 5, Expo published a head-to-head of three AI models actually building Expo apps. Fable 5 came out ahead on code and UI qualitySDK — Expo SDK 57 is a small, focused release centered on moving apps to React Native 0.86 without turning the upgrade into a project of its ownPREBUILD — expo prebuild now clears and regenerates the native android and ios directories by default, which matters if you have hand-edited native codeOTA — Hermes bytecode diffing means an OTA update ships only the delta rather than the whole JS bundle, saving bandwidth and cost at scaleSIMULATOR — Rork streams a cloud iOS simulator to your browser, so you can test in a real Apple environment without Xcode or Mac hardwareHARDWARE — Rork reaches HealthKit, ARKit and LiDAR, NFC, Dynamic Island, and Metal 3D, well past where no-code tooling usually stops
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rollback

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EAS Update2OTA2Expo2React Native2Rork1runtimeVersion1Staged Rollout1
Rork Dev/2026-06-24Advanced

When EAS Update Ships but the Bug Won't Die — Why OTA Stalls Silently, and How I Operate Around It

EAS Update can succeed and still fail to reach a slice of your users. These are field notes on runtimeVersion drift, updates that publish but never get adopted, and choosing the right rollback — with the instrumentation that actually helped on my Rork apps.

Rork Dev/2026-05-30Advanced

Growing a Staged OTA Update System Without Breaking It

Shipping an EAS Update to every user at once is dangerous. From channel design to staged rollout to automatic rollback, here is the delivery architecture I settled on across 50M cumulative downloads, with working code.