Windows 8.1 build 9600.16596 (winblues14 gdr lean.140114-0237)

On 2014-01-22, WZor.Net released an article that described this build. It is supposed to be a pre-release build of "Windows 8.1 2014 Update". 7 screenshots were published with the article.

The most important change visible from the screenshot is Windows Store being pinned to the taskbar.