[dwc]

Of course it's not really old. Though in my experience age has only a loose correlation to overall code quality. Some really old programs were well architected to start and have been carefully maintained. OTOH, I've worked with devs who are one-person technical debt factories, and allowed to work on relatively young and sparse applications will quickly make it an unmaintainable monstrosity.

[stochastic_monk]

My lab has a tool which has been actively maintained for 10 years and has a full-time employee supporting it and a related follow-up from 3 years later.

It takes a lot of effort to keep cross-platform support while continuously improving it. Granted, not every project deserves that kind of effort, but I respect the effort it takes to keep software up-to-date.