Windows 10 Mobile April 2018 update coming to compatible handsets according to Microsoft
Some users of Windows 10 Mobile handsets tried to pull out the April 2018 update manually, and came away with bupkis. As we noted, Microsoft warned that not every model is receiving the update. Still, there is a chance that this is all a mistake; after all, Windows Phone is not exactly a top priority for Microsoft at the moment-if it ever was.
Microsoft will officially walk away from Windows 10 Mobile on January 8th, 2019. Until then, the company will support the platform with bug fixes and security updates, but will not disseminate any new features for the phones.
source: Microsoft via WindowsLatest