Yes, especially the part about backward compatibility on OSX have changed a lot. Microsoft have always cared a lot about backward compatibility, going as far a

Yes, especially the part about backward compatibility on OSX have changed a lot. Microsoft have always cared a lot about backward compatibility, going as far as emulating bugs from older versions of Windows to prevent breaking binary software that was relying on those bugs. Apple on the other hand has been pretty shameless about breaking binary compatibility, the biggest breakage recently being about stopping to support 32bit apps in Catalina. If anything, I don't think breaking binary compatibility is such a bad thing today compared to 10 years ago. When you were buying software license to use a version for life, binary compatibility was important. Now you're mostly buying services with software that comes for free, so sticking with an old version because you don't want to pay for the upgrade doesn't really happen any longer. Also when software is no longer supported by the publisher you're forced to switch to something else anyway.