Microsoft revealed the Windows 10 Anniversary Update will be launched on Tuesday, August 2nd. This is a couple of days after the actual anniversary date of Windows 10, the operating system was launched on July 29th but the software giant likes to push out updates on Tuesdays. The launch date was shared in a blog post, which has since been removed, presumably because someone clicked the publish button too early.
Microsoft announced Windows 10's Anniversary Update back in March, during its Build conference. The update puts a major focus on Windows Ink, building out its feature set to make stylus use far more powerful. It also brings extensions to Edge, as well as smaller improvements to Hello and Cortana, along with some minor interface tweaks.
Also keep in mind that if you want to upgrade to Windows 10 for free, you have less than a month time left as the free upgrade offer expires after July 29th.