WhatsApp Launches Official Beta Channel on Google Play Store
Android: The mega-popular messenger WhatsApp has its own beta program for a long time. However, it is much easier to join us now. Just sign up for the beta version of the Play Store and you will always have the latest version.
As pointed out by Android Police, up to this point, WhatsApp has been releasing any of its beta versions directly through its own APK download site. Instead, the new program uses the official Google beta , which means you just have to click on the source link below and hit the big blue Become a Tester button. Every time you download a new version of WhatsApp from the Play Store thereafter, you will participate in the beta program!
WhatsApp Beta | Google Play Store via Android Police