Microsoft Principal Program Manager Lead, Amanda Langowski said: "As we continue to evolve the way we're building and releasing Windows 10 in the future, we may introduce new channels for new experiences for Insiders". The Start menu looks a lot cleaner and more uniform as a result. The Start menu now includes the Fluent Design icons that Microsoft began rolling out earlier, and does away with some of the colored backgrounds that have made up the traditional Start menu. This will "elegantly apply your accent colour to the Start frame and tiles".
If you're a Microsoft Edge user and think of yourself as a bit of a multi-tasker, then this next update might also be of interest. There is going to be a lot of feedback around any Alt-Tab changes here, particularly if Microsoft plans to turn this on automatically when its next major Windows 10 update ships later in 2010.
Microsoft is changing the way ALT tabbing works so you'll see each tab you have open in Edge when you press the shortcut. Essentially, the Dev Channel is the new Insider Fast Channel-code that Microsoft is not tying to any future Windows 10 feature release.
Microsoft also added the ability to switch using the buttons Alt + Tab, not only among Windows programs, but also between browser tabs Edge.
Note: You must have Windows 10 Pro edition to be able to make the required changes.
Separately, Microsoft's May 2020 issues page says that "today we are increasing the number of devices that will be offered the May Update". You can still go back to the old look if you choose, however.
Netizens slammed Microsoft's move, calling it "a new low". Furthermore, the default setting will be changed for 2-in-1 devices so that users will experience a newly enhanced touch when they detach the keyboard. Settings are also being improved by moving the information typically found in the System page of the Control Panel to Settings System About.