With Windows 10 Redstone 5 nearly feature-complete and close to entering the stabilization process, Microsoft is now preparing to begin work on the very next Windows 10 release internally codenamed Redstone 6/19H1.

According to BuildFeed, the first Windows 10 Redstone 6 build compiled by Microsoft is 18200. The Windows 10 Build 18200 was compiled on July 16 for internal testing and more such builds should be spotted online from now on.

Microsoft should soon begin shipping preview builds of Redstone 6 to the Skip Ahead ring, though the first build wouldn’t include too many changes.

This time, Microsoft is doing a complete reset of the Skip Ahead Ring to allow some Insiders who were left out of the special program to gain access. Microsoft created the Skip Ahead Ring last year to let select insiders try out the next-next update early. This means that the first Windows 10 Redstone 6 builds will only be shipped to select users and everyone else will get it after the public release of Redstone 5 update, which is due in October.

"Insiders who previously opted in to Skip Ahead will be automatically put back into the Fast ring. The option to join Skip Ahead will disappear from the dropdown under Settings > Update & Security > Windows Insider Program," Microsoft's Dona Sarkar explains in a blog post. "In the coming weeks, we will make an announcement that we have re-opened Skip Ahead for Insiders to opt-in. If you were previously in Skip Ahead, you will need to opt-in again,"

The Skip Ahead Insiders should get the first Windows 10 Redstone 6 build next month and the Fast Ring Insiders will continue to receive Redstone 5 builds.