You really thought Microsoft would never overhaul the UI of Windows ever again? Or that they would do it, but continue to call it Windows 10? "The last version of Windows" was pure marketing BS.
I honestly didn’t think they would do something like this either. I figured they were simply moving to an Apple model of giving away new versions for free since the enterprise subscriptions would be more than enough to pay for the development.
Maybe people will never leave Windows, but I think this is a mistake on Microsoft’s part. We’ve had them as great business partners for the past several decades in the public sector. Not only do they understand Enterprise better than their competitors, their monopoly also produced a generation or two of workers who knew how to use a PC for office purposes.
That last part isn’t true for the next generation to enter the workforce. If they know anything non-mobile it’s Mac OS/X. Once enough people stop being good at Windows it’ll no longer make sense for Enterprise organisations to keep paying the licenses. It’ll be decades before it becomes a threat to Microsoft and I’m sure they already know more about this than me, but I really don’t see where they are heading with Windows 11 in the private market except from out of it because nobody wants to buy an OS in 2021.
We've been getting some pretty major changes in each of the spring/fall updates anyway. I expected they'd keep going that route and eventually just drop the 10, and keep the update version available for documentation/support.
Market it as "Windows" and report the version as "Windows (21H1)" on the system information.