Microsoft is making a change to Windows Insiders. They are changing the names of the individual rings. But in principle, nothing changes in the current situation. The Fast Ring becomes the Dev Channel. The Slow Ring becomes the Beta Channel.
The Release Preview Ring stays almost as it is, it just becomes the Release Preview Channel. It is intended to make the Windows 10 Insider versions more or less the same as the Office version.
The change will take place later in June, and automatically. Certainly at the same time as the Windows 10 21H1 in the Fast Ring Dev Channel and the Windows 10 20H2 in the Beta Channel.
Channels Instead of Rings
The dev channel will replace the current Fast Ring, where the next but one big Windows 10 feature update will be tested. There the builds will still not be very stable and reliable. This is also where features are tested which Microsoft does not necessarily have to roll out with one of the following updates.
The beta channel tests the next version of Windows 10 and replaces the slow ring. According to Microsoft, user feedback will have the greatest impact here. These updates will be reliable, the company writes.
Finally, there is the Release Preview Channel, which brings practically no changes. Here, there will only be the next smaller update in advance. These builds will also receive official support, according to Microsoft.
Additional Channels for Windows 10X
Microsoft also leaves open the option in Blogpost to add more channels in the future. This change in strategy could be used to possibly test Windows 10X with Windows insiders in the future. According to rumours, the company had planned to do this anyway.