: End-of-life software does not receive security patches. Attackers often target these legacy systems, which can accumulate hundreds of new vulnerabilities over time. Browser Hijacking

You can find the archived APK on platforms like APKMirror or the Internet Archive .

Depending on what you are looking for, "v2.1.6" likely refers to one of the following: 1. YouTube Mobile App (Old Version)

This version was designed for older Android devices (Android 2.2+).

: Hosted for historical preservation purposes.