The Date_Split function was not in the export list, and was not
mentioned in the documentation. As a matter of fact, it was in the
module in the section labeled
NOT FOR EXPORT
I'm sorry that a module was written which depends on it... but this is a
bug in that module, not a flaw in mine. Indeed, it is in an effort to
clean up the namespace in Date::Manip making it pass Pod::Coverage tests
that the function was renamed, and I regard this as an improvement in
Date::Manip.
Please report the problem to the owner of that module so that they can
correct it.