Microsoft is now giving the finishing touches to Windows 10 version 2004, also known as Windows 10 May 2020 Update, and when the rollout to production devices begins next week, the organization can focus more about what's next because of its operating-system.

The next-next Windows 10 feature update is due within the fall of 2020, but all signs appear to be suggesting that this you will follow within the footsteps of the November 2019 Update and come rather as a cumulative update than the usual major release.

In other words, the focus will be on fixes underneath the hood and fewer on additional features.

Then when you are looking at additional features, before summer 2021 update may be the one which users will be more looking forward to. And according to a recent "accidental" revealing, Microsoft will begin testing this feature update the following month.

Long-term testing

Microsoft said in a article spotted by WL that Windows 10 21H1 (2021), apt to be called Windows 10 version 2104, will get to the Windows Insider program next month.

"The Windows Insider Fast ring happens to be on our Manganese (Mn) OS branch," the company said. "We expect the short ring to change over to our Iron (Fe) branch toward the later part of June."

The mention of Windows 10 21H1 feature update was already removed by Microsoft, so you can click the linked page above to determine the cached version.

At this time, the schedule for Windows 10 preview builds gets a lot clearer. Once Microsoft ships Windows 10 version 2004, the company will begin testing the fall of 2020 update, or version 2009/20H2 with the Slow ring within the Windows Insider program.

Starting the following month, the short ring will be provided with Windows 10 21H1, or version 2104, preview builds, so the two rings is going to be serviced simultaneously until the fall update ships officially.