Swift 6.3 adds official Android support
Swift 6.3 reportedly includes official Android support, letting Swift developers build native Android apps and interoperate with Kotlin/Java — that removes a major barrier for teams wanting to use Swift across mobile platforms. It could shift multi‑platform strategy for native apps. (x.com)
Swift 6.3 was published on March 24, 2026, as the official release post on Swift.org. (swift.org) The release bundles new language and library controls aimed at library authors and cross‑platform use, including the @c attribute, module name selectors, @specialize, @inline(always), and @export(implementation). (swift.org) Swift.org’s Android docs and “Exploring the Swift SDK for Android” explain that the SDK is an Android‑targeted artifact bundle that extends the Swift toolchain and requires the Android NDK for cross‑compilation (host: macOS/Linux; targets: Android devices/emulators). (swift.org) Java/Kotlin interop is provided through the swift‑java project and its lower‑level swift‑java‑jni‑core layer, while jextract gained a JNI mode to generate the bindings that let Swift call into ART and Java APIs. (github.com) Official SDK and community SDKs target multiple ABIs — aarch64, armv7 and x86_64 — and the Swift forums show an Android SDK snapshot released December 10, 2025 with notes about linking against NDK r28 for availability checks. (github.com) The Android workgroup post lists ongoing priorities such as IDE/debugger integration, GitHub workflow coverage for Android builds, and emulator test support as next steps for maturing the SDK and developer experience. (swift.org)
