Windows 10 build 14306 (rs1 shell winpen)

Windows 10 build 14306 (rs1_shell_winpen) is a build of Windows 10 Anniversary Update. It was showcased in Day 1 Keynote at the Microsoft Build 2016 conference. . It was also demonstrated in a video shown in the article "Create, ideate, and collaborate: Build apps powered by Windows Ink" posted by a Microsoft employee on Windows Developer Blogs on 6 April 2016.