It is being released but in phases over the course of a week or more so as not to overload their cloud servers. So some of you will have up to a week before you see the upgrade. I also hope most know if you opted for the upgrade it is no longer optional. You will wake up to a Windows 10 machine. So if you don't want it or want to wait to see what others say, go back and opt out for now. There is no file to download and just sit on till your ready. It is on a cloud you have no direct access to and will be pushed to your machine when your area comes up. This is how they are also cutting into piracy by not have a file or files you can download and distribute. It is done on a per machine bases now through a cloud. That is why you need internet access for and during the install.
As for XYZware working or not, I doubt it as comm protocols have changed some and I know XYZware uses some unique access in order to cut down on the ability to use third party on stock machines.
Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.