Auth0.Android v4 Migration

Migrates an existing Auth0.Android (com.auth0.android:auth0) v3 integration to v4. Every code change is gated on a search that confirms the project actually calls the affected API — if the project never uses SecureCredentialsManager, no SecureCredentialsManager code is touched. Changes follow the project's existing architecture (Kotlin or Java, callback or coroutine) and Android conventions.

Target version is argument-based

This skill accepts an optional target version argument:

• /auth0-android-major-migration 4.0.0 — migrate to the exact tag 4.0.0 (validated before use).
• /auth0-android-major-migration (no argument) — auto-resolve the latest release within the next major (v4.x), including pre-releases.

$ARGUMENTS, when present, is the requested target tag. Step 2 validates it and resolves the final <TARGET_TAG> used for the rest of the migration.

When NOT to Use