Android developers are encouraged to gear up for a crucial update to the platform: the shift to a 16 KB memory page size. This change brings notable advantages, offering performance improvements of 5–10% for apps and games. Although this upgrade marks an important milestone in Android's progression, developers need to take proactive steps to ensure their applications are compatible with the updated architecture.
Developers eager to test their apps on devices with 16 KB memory pages can now access this feature via a developer option on Google's latest Pixel 8 and Pixel 9 models. Additional support from Android OEMs like Samsung, Xiaomi, and vivo is expected soon. This update highlights the platform's future direction, with Google anticipating the launch of devices using the new architecture within two years. To support the transition, the engineering team has provided detailed resources and guidance to help developers update their apps.
Getting Ready for Android's 16 KB Evolution
For developers working with native code, some adjustments will be necessary, but the process is much more straightforward compared to Android's earlier shift from 32-bit to 64-bit architecture. The good news for those using only Kotlin or Java is that apps written exclusively in these languages, without native code dependencies, will continue to work seamlessly. However, developers creating apps with native code or working on SDKs and libraries will need to put in some preparation:
For SDK Developers
SDK and library creators should prioritize making their solutions compatible with 16 KB memory page sizes. Early testing can assist third-party app developers in implementing required updates more efficiently. Signing up for the Play SDK Console is highly advised to stay updated on upcoming platform changes.
For App Developers Without Native Code
Android apps without native code are ready to benefit right away. No rebuilding is required—just perform basic testing to confirm compatibility with 16 KB page-size devices.
For App Developers Using Native Code
Apps with native code need thorough evaluation and rebuilding to meet the new configuration. Follow these three steps:
Update Your Tools: Use Android Gradle Plugin (AGP) version 8.5.1 or later, optimized for 16 KB page-size configurations in APKs and App Bundles.
Adjust Native Code: Compile native code with NDK version r28 or newer, and eliminate any hardcoded references to PAGE_SIZE to avoid compatibility issues.
Update SDKs and Libraries: Review all external SDKs and libraries your app relies on. Ensure they support the 16 KB page-size format and contact developers for updates if needed.
Thorough testing is essential throughout to guarantee your app runs smoothly on future Android devices.
Testing for Android 16 KB Memory Page Compatibility
Google has made it straightforward to verify compatibility with 16 KB memory pages. Developers should test their apps on emulators or virtual devices configured for 16 KB page sizes, in addition to standard 4 KB configurations. For physical testing, devices like the Pixel 8/8 Pro (supported from Android 15 QPR1) and upcoming Pixel 9 models (starting with Android 15 QPR2 Beta 2) are available. In the coming months, more options will emerge from OEMs like Samsung. To avoid compatibility issues, ensure your app does not hardcode assumptions about memory page size (e.g., fixed reliance on 4 KB pages). Early validation will help smooth the transition to the new architecture.
Preparing for Android's Future
The move to a 16 KB memory page size sets the stage for significant progress within the Android ecosystem. This change brings immediate benefits like faster runtime performance and improved memory efficiency, delivering smoother and more immersive user experiences. In the long run, this transition is a pivotal step toward enabling further innovations in mobile app development, addressing the growing demand for high-performance apps and games. Google remains committed to supporting developers through this transition by providing essential resources and guidance. Early preparation is crucial—by starting the testing and updating process now, developers can ensure their apps stay competitive on future Android devices. The Android team urges developers to act promptly, as this shift will take full effect in the coming years. Preparing now ensures your app is ready for what's next.
