Unity Game API Level Upgrade (16(API Level 36 or higher)

My casual mobile game is already live on Google Play, built entirely in Unity, but Google now requires every submission to target at least Android API 36. I need the project migrated to that level (or higher) so the store stops flagging it each year.

Scope of work
• Open my existing Unity project, bump the Android SDK/Gradle settings and any plug-ins so the targetSdkVersion is 36+.
• Make sure builds export cleanly as an AAB, ready to upload in the Play Console with no compliance warnings.
• While you are inside the project, add a small set of new levels that follow the current mechanics and art style. No UI/UX redesign is necessary—menus and overlays can stay exactly as they are.

Deliverables
1. Updated Unity project folder with all settings pointing to API 36+.
2. Signed release AAB that installs and runs on devices from Android 8.0 upward.
3. A short change log explaining the SDK changes and the new level locations in the hierarchy.

That’s it—keep gameplay intact, leave the interface untouched, and get me a store-ready build that meets Google’s latest requirements.