Microsoft’s EVP for Windows and Devices, Terry Myerson has today sent a mail to Windows Insiders talking about the two new and upcoming Windows 10 features. One of these features is “Sets” which is perhaps one of the most significant UI changes ever in Windows.

Microsoft has now made it official after some leaks already revealed Sets feature some days ago. Microsoft also posted an official video showing the Sets feature in action.

In the coming weeks in WIP, we will begin releasing a new Windows 10 feature we are calling “Sets” (we’ve not landed on a name yet). With Sets, what belongs together stays together — making it easier and faster to create and be productive. The concept behind this experience is to make sure that everything related to your task: relevant webpages, research documents, necessary files and applications, is connected and available to you in one click. As Office, Windows and Edge become more integrated to create a seamless experience, so you can get back to what’s important and be productive, recapturing that moment, saving time — we believe that’s the true value of Sets. And with Timeline, it’ll be even easier to go back and find the Set you were working on.