I did some experimentation to get referenced sybols to update, and it does work or at least it did for me. I used the Resource Browser to perform the referencing.
Two things seemed to impacted the operation though. First, the file in which the referenced symbol is located has to be in the same folder as the file doing the referencing. Second, updating only happened when the file with the reference is closed and opened. I was not able to figure out a way to update symbols like you can wrokgroup rreferences.