Expo SDK 58 ships a Rust JS transformer: 5,477 files converted in under 3 seconds
Baconbrix · x · 2026-10-17
Expo SDK 58 is out, and Baconbrix benchmarked its Rust-based JS transformer: 5,477 files converted in under 3 seconds (2.46s wall time vs 5.26s when routed entirely through Babel).
Other highlights:
- Built for iOS 27 with App Intents for Siri; apps are ready for Duo on day one
- 2x faster clean Android builds and faster Expo modules
- A new CLI designed for coding agents
Upgrade with npx expo install expo@^58.0.0 --fix.
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