Back in February 2017, the Facebook folks behind WhatsApp gave a glimpse into their plans for future development. They included dropping support for BlackBerry OS, BlackBerry 10, the Nokia S40, the Nokia Symbian S60, Android 2.1 and Android 2.2, Windows Phone 7, and the iPhone 3GS/iOS 6 by the end of 2016, but recently, the list was...