How is that? Every new Adobe Creator package used to have a different price(e.g cs3, cs4) Now you can't even upgrade. You pay monthly subscriptions. You pay for OS upgrades as well(i.e win vista, 7, 10 etc)
And one has not needed to pay a separate fee for OS upgrades in quite some time. Linux has obviously always been free. macOS since at least Mavericks - if not earlier - is also free of additional charge.
Adobe Suite is a subscription based software solution. It is an inappropriate analogy. Does Microsoft asks for money for performance updates in Windows?
Err well actually depending on the edition of Windows Microsoft has long had limitations on the amount of RAM and IIRC multi socket support. Not as part of some architectural change within Windows, literally just a limit on the amount of usable RAM like Windows 7 Home Premium would only allow 16GB.
