From a report: Microsoft is killing off Windows Phone 8.1 support today, more than three years after the company first introduced the update. The end of support marks an end to the Windows Phone era, and the millions of devices still running the operating system. While most have accepted that the death of Windows Phone occurred more than a year ago, AdDuplex estimates that nearly 80 percent of all Windows-powered phones are still running Windows Phone 7, Windows Phone 8, or Windows Phone 8.1. All of these handsets are now officially unsupported, and only 20 percent of all Windows phones are running the latest Windows 10 Mobile OS.
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