Did you know: Microsoft is enabling the capability to swap the location of a SharePoint root site with another site using a new PowerShell cmdlet, Invoke-SPOSiteSwap, as announced in MC187289 (August 2019) and MC189866 (September 2019). Microsoft is extending this feature to customers that have more than ~10,000 licenses. Customers with fewer than ~10,000 licenses already have this capability.
How does this affect me?
– Admins will be able to swap the SharePoint root site with another site using the PowerShell cmdlet, Invoke-SPOSiteSwap. The root site will be archived automatically. You must use SharePoint Online Management Shell version 16.0.8812.1200 or later, which will be available at the end of February.