https://www.theregister.co.uk/2019/01/15/no_more_windows_build_strings_for_you/

As Windows 7 tipped over into its 12-month march to oblivion, the popular Windows tracking site, BuildFeed, issued its final update.

It's an ignoble end for a handy resource for those trying to work out what is happening within the bowels of Redmond with regard to the many and varied versions of the Windows operating system.