From Satya’s latest post we can find the following:
Windows 11 will be available through a free upgrade for eligible Windows 10 PCs and on new PCs beginning this holiday. To check if your current Windows 10 PC is eligible for the free upgrade to Windows 11, visit Windows.com to download the PC Health Check app. We’re also working with our retail partners to make sure Windows 10 PCs you buy today are ready for the upgrade to Windows 11. The free upgrade will begin to roll out to eligible Windows 10 PCs this holiday and continuing into 2022. And next week, we’ll begin to share an early build of Windows 11 to the Windows Insider Program – this is a passionate community of Windows fans whose feedback is important to us.