Windows 8.1/6.3.9600.16384.winblue rtm.130821-1623

Windows 8.1 build 9600.16384 is the official RTM build of Windows 8.1, which was released to manufacturing on 27 August 2013 and then released to the public on 17 October of that year.

This build notably contains a new set of wallpapers that are not present in any pre-release builds of the operating system.