Sorry if I’ve missed the definitive answer on this. I’ve got the 1803 feature upgrade successfully deferred on several Win10 Pro machines that connect directly to Microsoft (no WSUS). They’re still on 1709. At the moment, they’re deferred for 120 days. But when does that 120 days start? I guess it’s not from the original release of 1803, since we’re more than 120 days past April. Maybe from the day it change to Current Branch for Business?
Would be nice to put in my calendar: “1803 will download to these machines on September 5” or whatever … so I can be prepared (and prepare the client).