You just need to launch the application and Beta Updater for WhatsApp automatically checks if the latest version of WhatsApp is installed, otherwise it will download and install the latest one. So simple!
Want to talk about new versions of WhatsApp and keep abreast of developments in the application? You can also participate in the group of "Beta Updater for WhatsApp" on Google+. You are welcome! https://plus.google.com/communities/102574612559329723462
"Beta Updater for WhatsApp" is a free application available on GitHub https://github.com/javiersantos/WhatsAppBetaUpdater.Android
Unofficial Product. This application is not affiliated with WhatsApp Inc. WhatsApp Messenger, its name, trademark, and other aspects of the app are trademarked and owned by their respective owners.