Continual upgrades
Gravelbelly, I am a programmer so I find what you are saying fascinating. There are huge changes in tools and hardware happening all the time and it's hard to keep up with the full spectrum of it. I wonder how it's all going to affect defence - if there could be a situation where there is a big advantage for the country which spends it's money last rather than first.
I make tools, of a kind, hence the interest. :-)