I certainly disagree on this point. Take the case of a small software company that ends up not being all that successful. I purchase a license for said softwar

I certainly disagree on this point. Take the case of a small software company that ends up not being all that successful. I purchase a license for said software; it is useful for me, but the company goes out of business since they are unprofitable. Now Apple breaks backwards compatibility with this software when I upgrade. Even in the case of the software maker still being in business, should they have to provide me free upgrades for life? If they do that then they have diminishing profits with every upgrade. On the flip side, should I have to pay for a new license when I don't need the new features and am perfectly happy staying on the existing version if it only would continue to work? To give two quick examples of this I used to run Parallels on my Mac so I could run a couple of Windows apps that I absolutely had to have and it would have been very inconvenient to use a boot camp setup and reboot every time I needed access. Then when the Mac version changed Parallels quit working; my only option was to buy a new license for Parallels. To make matters worse; you never really know what software will break when there is an upgrade, but if you don't upgrade then you end up in the boat that some other piece of software you are running does get updated, but you can't use that software without getting the latest version of Mac. When I compare this to Windows; I'm still running today on Windows 10 software that I purchased for Windows 95. For all of the many things I dislike about Windows; the one thing I applaud them for is their level of backwards compatibility.