]> Hi Suppose I use Marshall module (and input_value / output_value pervasives) to serialize a sophisticated data type. If I make [small] changes to this data type, what is the best way to convert old saved data? What if the new type is a supertype to the old one, can I load it safely? I tried it with type old_type = Float of float | Int of int ;; type new_type = Float of float | Int of int | S of string;; and it seemed to have worked with input_value and output_value. Thanks Oleg ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners