Many users of Windows 10 have a solid idea of which build they are on. In fact, most consumers likely do not know, and that is an OK thing. Windows 10 should be transparent, and users should not have to know the exact build of the OS they are running. Windows Insiders, however, are a different breed. You, folks, like to keep tabs on every release and sometimes, just sometimes, you may have forgotten which build you are on. Alternatively, sometimes things update but you do not know what changed.