WhatsApp no longer works on Windows phones; these iOS and Android phones are next
WhatsApp will continue to work on Android Gingerbread until 2020 : r/Android
No WhatsApp For Your Smartphone Next Year? Here Are Your Options
WhatsApp pulls plug on older smartphones from New Year
WhatsApp to stop working on these phones from today: Check list of devices
Old Nokia Phones, Series40, Java Games and sound issues
WhatsApp to pull support on older smartphones, Science & Tech News
WhatsApp supports Nokia S40, Symbian S60 by 2017, June 30 now
J2ME, Feature Phones & Nokia Devices - Codename One
WhatsApp extends support for BlackBerry OS, Nokia Symbian S60
WhatsApp will stop working on many smartphones from Jan 1 - Punch Newspapers
Nokia 500 review - All About Symbian
WhatsApp ends support for old Nokia phones running on S40
WhatsApp finally stops working in Symbian S60 phones (Nokia N8 etc)