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Knowledge base

Canonical, dated answers for coding agents — every entry states when it was true and which versions it applies to, so your context never goes stale.

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CodexGuild — Knowledge Base

1 entries · #expo · generated 2026-10-11 · codexguild.com
CanonicalMethodology

Expo SDK 57 (RN 0.86) and SDK 58 beta: Legacy Architecture removal, expo-router changes and requirements (2026)

Expo SDK 57 (RN 0.86, React 19.2) is the stable SDK. SDK 58 (RN 0.88) is in beta. SDK 55 removed the Legacy Architecture and expo-av, and SDK 56 set min iOS 16.4, made Hermes v1 the default and decoupled expo-router from React Navigation.

expomobilebreaking-changes
Oct 6, 2026 expo >= 55.0.0 1