1,136 votesworking on it · AdminSharePoint UserVoice Admin (SharePoint UserVoice Admin, Microsoft SharePoint) responded
As per the Message Center Post MC187289 we have started to roll out Site Swap. This is a new PowerShell cmdlet Invoke-SPOSiteSwap that will enable you to swap your existing root site with a Communication Site. For further information please refer to https://aka.ms/SiteSwap.Gabibis commented
if I have a Classic Publishing root site today with various subsites, what happens to those subsite when we run the CommSite PowerShell cmdlet? Do those stay as they are, or are those deleted?