Upgrade Datadog RUM Android SDK from v2 to v3

Use this skill when an Android project uses Datadog Mobile SDK 2.x and must be upgraded to the latest stable 3.x release. The v3 migration removes legacy OpenTracing support and updates APIs across the Android SDK modules.

This skill incorporates the Android v2-to-v3 migration guidance from [DataDog/documentation][documentation-source], reviewed at commit a27f7562165b9058f8cd597b48473cc7ecbeda81 on 2026-09-25. Use the instructions below as the migration source of truth; consult the live documentation only when the project contains an API not covered here or the requested target is newer than this reviewed revision.

1. Establish the migration scope

Before editing, inspect the entire Android project for: