If you install version 4.4.2 and find it non-functional, do not despair. You have three better options:

Arjun didn’t understand the technicalities. But he understood loyalty. He downloaded the bridge app— LegacyLink v0.1 —installed it, and watched his WhatsApp 4.4.2 reconnect.

: After downloading the APK, you must enable "Unknown Sources" in your device settings to install it. Alternative Sources

While you can find archived APK files for older versions of WhatsApp on third-party sites like Uptodown , . Even if you successfully download and install an old version, you will likely be unable to register your phone number or connect to the service. Why old versions won't work