WhatsApp has always been releasing the beta versions on their website. Before they add the final release to app stores on Google and Apple respectively, WhatsApp puts up the apps on their website WhatsApp.com so that people can download and test the beta versions before the final release. But installing the app by downloading to PC and then sideloading it to the phone is tedious. Hence, WhatsApp started the beta testing program which allows users to get instant beta updates directly via the respective play stores and you don’t need to download the beta apps to get the early releases anymore.
Simply head to the WhatsApp.com website, hit the download button, and then your respective smartphone operating system platform and a webpage will greet you to ask you if you want to join the Beta Testing Program. Once you register, you can simply check for updates to your WhatsApp on the app store on your smartphone. A new beta update will then start downloading and you will see WhatsApp updated to the latest version that no one must have installed before you. Best of all, we did see that WhatsApp servers had an older version than what we got as an update after joining the Beta Testing Program.