Microsoft is confirming today that it plans to ship its Windows 10 Anniversary Update to existing devices on August 2nd. The date slipped out by mistake yesterday, and it marks just over a year since Windows 10 first debuted on July 29th, 2015. Microsoft is marking the occasion with an update that is free to existing Windows 10 users, and includes new features like Windows Ink, Microsoft Edge browser extensions, and Cortana improvements.