Can you open a 3dm file that was drawn in Rhino 5 in Rhino 4 SP9?

I would like to know if a 3dm file created in Rhino 5 can be opened in Rhino 4 SP9?

My recollection is Rhino 4 can only open a .3dm file from Rhino 5 if the file was saved as a Rhino 4 type (option when the file was saved).

Yes, Rhino 4 can not open Rhino 5, but Rhino 5 can save as Rhino 4.

Thank’s for the reply. I thought that was the answer, just wanted to be sure.