WhatsApp to Stop Working on millions of phones

Devices like Android and iPhone which only support outdated operating systems will no longer be able to run Whatsapp.

The operating systems that WhatsApp is dropping support for are legacy operating systems, which are no longer updated or installed on new devices.

The Face book owned app will no longer be used on older Devices because of Security Reasons

Smartphones using Android 2.3.7 and older, and iPhone iOS 8 or older, are those affected by the update.

Most users will simply be able to update their operating systems in order to continue using the messaging service.

However, certain devices, such as the iPhone 4, which only supports iOS 7, will no longer be compatible with the app.

"WhatsApp clearly had no option but to ensure its service remains secure, however it faces the difficult side-effect that the app is no longer compatible with older smartphones," said CCS Insight analyst Ben Wood.

This will really affect WhatsApp marketing especially in areas where their is greater number of old Phones