https://www.theregister.co.uk/2019/01/18/windows_10_mobile_death/

Microsoft has formally set the end date for support of its all-but-forgotten Windows 10 Mobile platform.

The Redmond code factory said today that, come December 10, it's curtains for the ill-fated smartphone venture. The retirement will end a four-year run for a Microsoft phone effort that never really got off the ground and helped destroy Nokia in the process.