WhatsApp ends support for old Nokia phones running on S40

WhatsApp to stop working on older mobiles - Oman Observer

WhatsApp Finally Ends Its Support For Nokia S40 Phones

WhatsApp pulls plug on older smartphones from New Year

Older smartphones get locked out of WhatsApp

J2ME, Feature Phones & Nokia Devices - Codename One

WhatsApp ends support for old Nokia phones running on S40

WhatsApp stops working on BlackBerry OS, BlackBerry 10, Windows Phone 8.0 and older platforms-Tech News , Firstpost

WhatsApp drops support for BlackBerry, Nokia and older Android phones, The Independent

Reliving the Nokia experience

Reminder: WhatsApp will no longer support BBOS or BlackBerry 10 as of December 31

WhatsApp finally stops working in Symbian S60 phones (Nokia N8 etc)

WhatsApp Won't Support BlackBerry After 2016

WhatsApp to stop working on some iPhones, Android devices

Old Nokia Phones, Series40, Java Games and sound issues