For me and I'm sure others one of the most important differences is immutability. This has been a big request from the community, but would be impossible to imp

For me and I'm sure others one of the most important differences is immutability. This has been a big request from the community, but would be impossible to implement in moment without breaking much code which relies on the current mutability. https://github.com/moment/moment/issues/1754 https://github.com/moment/moment/issues/1754