Source file is from google play store
Update for WhatsApp
|Downloaded||:||50,000 - 100,000|
|Android Version||:||2.3.3 and up|
|Published||:||August 10, 2015|
In your device, including tablet or smartphone, this app will worked on that. it can check whether new versions are available and also download then update it!
Because official website version release its WhatsApp app will before in play store, so just use this app. it helps your WhatsApp app will update to date.