I'm afraid it won't work. The point of std lib is to be universal connection for all the libraries. But with versioned std I just can't see how can you have Dat

I'm afraid it won't work. The point of std lib is to be universal connection for all the libraries. But with versioned std I just can't see how can you have DateTime in std1, DateTime in std2 and use them interchangeably, for example being able to pass std2::DateTime to library depending on std1 etc. Maybe conversion methods, but it get really complicated really quickly