Reliance on deprecated behavior, but without the compiler warning. There may be some hidden risk out there, and we have no idea how much it'll cost to fix or replace.
The example that springs to mind is the social security check printers. I think they wound up reading the wire voltages as checks were printing to duplicate the behavior for the y2k fix. Was urgent as many people relied on that income.
There are rare events that you can't do much about up front, they're external. A pandemic might be a good example. There are other rare events you can simply avoid, but it's often tempting to just skip the maintenance and let someone else deal with it when it breaks. It's rare right? Not like we're going to get blamed, or even be around to have to deal with it.
The example that springs to mind is the social security check printers. I think they wound up reading the wire voltages as checks were printing to duplicate the behavior for the y2k fix. Was urgent as many people relied on that income.
There are rare events that you can't do much about up front, they're external. A pandemic might be a good example. There are other rare events you can simply avoid, but it's often tempting to just skip the maintenance and let someone else deal with it when it breaks. It's rare right? Not like we're going to get blamed, or even be around to have to deal with it.