Windows 8.1 build 9319

Windows 8.1 build 9319 is a build of Windows 8.1. It was first referenced on Chinese website Win8China on 23 February 2013, and was later confirmed through WinJS version strings present within the Windows Store infrastructure using the proper application GUID on 14 December 2013. Multiple screenshots of this build were also shared on Chinese website Win8China. It is the earliest known build of Windows 8.1 to update the kernel version to 6.3.