Expo on Mythryl: “Swift now talks to JSI directly in Expo SDK 56. The Objective-C++…”

Swift now talks to JSI directly in Expo SDK 56. The Objective-C++ layer is gone. A native call that crossed three languages now lowers straight to C++. ◆ 1.6 to 2.3x faster ◆ Beats Turbo Modules on async (1.55x) ◆ Ships as a prebuilt xcframework try.expo.dev/jsi-blueksy

try.expo.devTalking to JSI in Swift: what changed in SDK 56In SDK 56, Expo's native modules call JSI directly on Apple platforms. The Objective-C++ layer is gone, and calls are 1.6–2.3x faster.

4/6/26, 4:30 pm0 reposts18 likes

Post