[jacquesm]

But here is where it comes in handy: If you have your version numbers out there in some database and a 0 day for that particular version hits then you're hacked. If not then you might be able to patch your system before a breach happens. It's no guarantee but since it costs very little and gives you possibly a bit more time when you need it badly it does not hurt. Obviously you need to cross all your other t's and dot the i's too.

And if you need your headers to tell you what versions are running and what tools are installed you are doing something else very wrong.