📱 Google Play 16KB Page Size Policy and How to Prepare in Unity

1. What’s Changing?

Starting with Android 15, some devices now use a 16KB memory page size instead of the traditional 4KB.
From November 1, 2025, all new apps and updates targeting Android 15 or higher on Google Play must support 16KB page sizes.

Why It Matters

🚀 App launch speed: up to 30% faster
🔋 Battery efficiency: about 4.5% improvement
📸 Camera app startup: 4.5–6.6% faster
⚡ Device boot time: ~8% faster

2. Impact on Unity Projects

Apps that include native libraries (.so) are most affected.
Binaries must be built with 16KB alignment (0x4000), and outdated toolchains or SDKs may cause crashes or rejection in the Play Console.

3. What Unity Developers Should Do

(1) Unity Version

✅ Use one of the following or newer:
- Unity 6000.1+ (Feb 9, 2025)
- Unity 6000.0.38f1+ (Feb 14, 2025)
- Unity 2022.3.56f1+ (Jan 15, 2025)
- Unity 2021.3.48f1+ (Jan 22, 2025, Extended LTS for Enterprise/Industry customers)
The Editor will now warn if 4KB-aligned plugins are detected.
Older versions are not guaranteed to work → upgrading is strongly recommended.

(2) Firebase for Unity

✅ Upgrade to Firebase Unity SDK 12.10.0 or later.
Fixes 16KB crash issues and updates the EDM4U dependency manager.

(3) Burst Compiler

✅ Use Burst 1.8.21 or later (newer versions like 1.8.24 recommended).
Explicitly adds Android 16KB page size support.

(4) Native Plugins / Third-Party SDKs

Rebuild or replace .so libraries with 16KB-compatible versions.
Unity Editor flags outdated plugins → update them.

4. Testing & Validation

🔍 Check compliance in Play Console → App Bundle Explorer.
🧪 Test on Android 15 emulator or physical devices supporting 16KB page sizes.

5. Key Takeaways

📅 Policy: From Nov 1, 2025, new apps/updates targeting Android 15+ must support 16KB.
🛠 Unity setup: Unity 6000.x + Firebase SDK ≥ 12.10.0 + Burst ≥ 1.8.21.
✅ Action: Update all SDKs, rebuild plugins, and validate in Play Console.

👉 In short: upgrade your Unity environment now to ensure compliance and better performance.