WhatsApp will stop supporting iPhone models running on iOS 10 and iOS 11 from October 24
Apple iPhone 4 users will no longer be able to use WhatsApp post Diwali.
iPhone 5 users will need to update their OS to newer version to continue using the messaging app.
Apple iPhone 4s users will no longer be able to use WhatsApp post Diwali.
iPhone 5C users will need to update their OS to newer version to continue using the messaging app.
As for Android users, devices running on Android 4.1 or later versions will be able to continue supporting WhatsApp.