[Schiendelman]

My whole point is that what you believe isn't correct. Apple continues to release security updates for "unsupported" versions (let's be careful about terminology, that term is specific and we're both using it), generally for two more years after a version becomes unsupported.

This is in a lot of the reporting about the topic and linked repeatedly in these comments. Please don't repeat false information.

Now you're right that this particular really old version also doesn't get security updates - but boy do I not have that expectation, and I would be surprised if anyone acting in good faith did.