Microsoft updated its design by clicking heres for the Windows Insider Program. The new design clearly explains the aim of the proletterand describes the news channela in which any interested user can participate.
The company recently renamed them Insider Rings in Channels and automatically convert the options to the new names in Windows 10 Settings.
The Fast Ring is done Dev Channel, the Slow ring became the Beta Channel and the Release Preview ring became a Release Preview Channel. The new naming scheme is reminiscent of the naming used by Microsoft to develop the Edge browser.
The new format in the Windows 10 settings describes the changes that have been made to the Insider program, but the new website also fully reflects the changes.
It also mentions as you see in the above picture which build is on which channel.
The company considers that this new design is more user-friendly and understandable.