A new kernel version signify new changes at the very core level of the operating-system, and the build 9888 of Microsoft Windows 10 which just surfaced via some private channel suggests a kernel version jump from 6.4 to version 10.0 as shown in images below. This large jump in kernel version number hints at massive overhaul of the underlying components and seems to be targeted on company's effort to consolidate all of its platforms into OneCore, a name given by Microsoft to it's single kernel for all of the company's operating systems (Desktop and Mobile).