WhatsApp Call Waiting Launched on Beta as well as Stable Android versions
FingerPrint Lock enabled on Beta version
WhatsApp has been updated with the call waiting feature for Android platform, which is active on both the Beta as well as Stable Android channels.
Change log in WhatsApp also mentions the fingerprint unlock support as well as group privacy settings. The Call Waiting feature is available on Version 2.19.352 of the stable Android app as well as versions 2.19.357 and 2.19.358 of the Beta version.
Last month, WhatsApp launched the feature on its iOS version with a redesigned chat screen along with a facility of sending a message using the VoiceOver mode directly from Braille keyboard.
WhatApp Call Waiting Feature - Explained
A caveat needs to be informed though - many WhatsApp users on the new version have realised that while on a Chat Screen, an incoming call on WhatsApp is not visible, though the phone rings. Further, even if the user is not on WhatsApp, the Incoming Call is not visible.
Along with this feature, WhatsApp new release has permitted FingerPrint Lock, which can be accessed through Settings > Account > Privacy > Fingerprint lock.