There are many reasons why you'd want to allow an older version, such as there simply isn't a newer version available. Just to give an example, Flash on ARM (n

There are many reasons why you'd want to allow an older version, such as there simply isn't a newer version available. Just to give an example, Flash on ARM (non-Android) is old, however, most of the attacks won't work, due to the different architecture (that's not to say it's safe, just that most people aren't targeting non-android ARM devices yet.) The odds of seeing any sort of update for it (I think, but don't quote me on it, it's version 10 or 11) are slim to none based on Google not releasing a version of Chrome for non android devices, nor does Adobe do the work of preparing Flash for these devices. I'm not saying these machines are worry free, but I definitely don't concern myself near as much as for my amd64 boxes