What changes I would need to release Application for Android 16KB in MAUI .NET 9

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What changes I would need to release Application for Android 16KB in MAUI .NET 9

Chinmay Dole 300

I would like to understand what steps or changes I would need to implement to migrate to Android API 35 16KB? Will Third Party Packages affect my Application in MAUI?

Chinmay Dole 300 Reputation points

2025-09-10T09:02:56.47+00:00

Any documentation would help me
Harry Vo (WICLOUD CORPORATION) 4,750 Reputation points Microsoft External Staff Moderator

2025-09-10T09:11:58.0033333+00:00

Hi @Chinmay Dole , what is your current version of MAUI? Do you mean you are planning to migrate from MAUI .NET 8 to .NET9? Or you want to target a higher android, which is Android API 35?

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Chinmay Dole 300 Reputation points

2025-09-10T09:02:56.47+00:00

Any documentation would help me
Harry Vo (WICLOUD CORPORATION) 4,750 Reputation points Microsoft External Staff Moderator

2025-09-10T09:11:58.0033333+00:00

Hi @Chinmay Dole , what is your current version of MAUI? Do you mean you are planning to migrate from MAUI .NET 8 to .NET9? Or you want to target a higher android, which is Android API 35?

Answer 1

Harry Vo (WICLOUD CORPORATION) 4,750 Microsoft External Staff Moderator

Hi @Chinmay Dole , thank for your quick update!

Since you are already on .NET 9.0.40 and targeting Android API 35, you’ve completed the first step for Android 15 support.

If your MAUI projects that use only managed C# code, no additional changes are required. However, if your app relies on third-party packages like SkiaSharp, SQLitePCL, or barcode scanning libraries, make sure these dependencies have been updated and recompiled with the latest Android NDK. The Android Gradle Plugin 8.5.1 and NDK r28 or newer automatically align binaries for 16 KB pages, but older builds may fail at runtime or trigger Google Play policy violations. About that, you can check release notes of these packages to check.

After that, remember to test on a 16 KB device or emulator (Android 15 system images allow you to enable 16 KB page size and verify runtime behavior.)

I also found a detailed developer blog post that might be useful to you.

Overall, just make sure all native dependencies in your project are updated and validated against a 16 KB environment is enough. I hope this helps you get things back on track quickly! If my suggestions can solve your issue, feel free to interact with the system accordingly!

Thank you!

Chinmay Dole 300 Reputation points

2025-09-10T09:52:01.4933333+00:00

Thank you for helping us detail. But how can I identify which third-party Library is affected by this change? As I am using old libraries that suit my project, such as Xamarin.Firebase, Xamarin.Plugin.Media, Prism?
Harry Vo (WICLOUD CORPORATION) 4,750 Reputation points Microsoft External Staff Moderator

2025-09-10T10:23:35.6166667+00:00

Hi @Chinmay Dole , I believe that you have to check every single library you are using manually.

These packages are just ZIP files, so the quickest way to check is unzip them to see. If you see any packages contain .dll after unzip, they are managed code and safe for 16KB. If you see any packages contain .so, they are native binaries, which could be affected.

You can also check them using AI tools like Copilot. Based on your mentions, Xamarin.Firebase, Xamarin.Plugin.Media may include native code so it could be affected.

After having the list of libraries that might be affected, you can check them on their official website (like Xamarin.Plugin.Media for example). From my perspective, I see that this library is no longer maintained for more than 2 years, and I don't see any mention about support Android 15 or the 16KB page size, so it's better to replace the library.

You can always test every library on a 16 KB device or emulator to check if it works. If you really want to use them even there are no update and the device cannot run, you can try to manually fork and rebuild the library by yourself (I'm not really recommend that since it's kind of complex btw).

If you think my answer is useful, feel free to interact with the system! Thank you!

Answer 2

Chinmay Dole 300

Hi @Harry Vo (WICLOUD CORPORATION) , thank you for explaining in detail. It is beneficial.

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Answer 3

Chinmay Dole 300

Hi @Harry Vo (WICLOUD CORPORATION) , I have already migrated to 9.0.40 with Android API 35. I would need more documentation or steps to migrate to comply PlayStore Policy https://developer.android.com/guide/practices/page-sizes

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What changes I would need to release Application for Android 16KB in MAUI .NET 9

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