A new beta version of WhatsApp for Android has just been released with changes that bring the messaging app closer to the Facebook app. See below what has changed in WhatsApp and download APK with update.
The new beta version has build number 2.11.209 and so far does not bring the expected free calls, which have even been incorporated into Facebook Messenger.
Still, the application team has made a number of minor changes to this update, which are still in progress.