We have developed a tool for this every-year requirement headache. Import .aab into this tool set MinSDK to 21(or as per your need) & Target SDK to 36, Generate .aab. You will get your compliant SDK in few seconds, then release app/update on Google Play. It's FREE for 1 day so you don't need to pay anything
When to use this tool?
You can use our tool in a safe way if-
The app already works correctly on Android 16 (If you don’t see any errors in logcat for your app by testing on Android 16). AND
Only the manifest values (Target SDK, Min SDK, permissions, etc.) needs update OR
The builder App Inventor is behind Google’s yearly Play Store deadline OR
The developer has only an APK or AAB and needs a quick manifest update without recompiling (can’t access builder, lost AIA).