WhatsApp is stopping support for all Symbian, Nokia S40, BlackBerry phones. Phones running older versions of Windows, Android and iOS operating systems will also not be supported. The shutdown of the service for these devices and platforms will happen at the end of the year, December 2016.
WhatsApp is one of the most critical apps on Symbian S60 devices right now, along with maps, music player and email. It is one of the cheapest modes of communication available on these devices. WhatsApp offers end to end encryption on these feature phones as well. After December 2016, users who want to continue to use WhatsApp will be forced to upgrade to a device that supports a newer version of Windows, Android or iOS.