In this particular case, it's not that big of a deal. As I understand it, this is an in-memory format that does not outlive program execution. One can safely as

In this particular case, it's not that big of a deal. As I understand it, this is an in-memory format that does not outlive program execution. One can safely assume that, even if CVS still exists in 40 years, no one will be using a 40-year-old version of this program by then.