11g to 12c and dump_dest question

I recently upgraded an EBS 12.1.3 instances from 11.2.0.3 to 12.1.0.2.

Everything went ok and I did not set user_dump_dest or background_dump_dest_locations as those parameters are deprecated but I did change diagnostic_dest to a new location (i.e not under $Oracle_Home).

Now without those set if I go and try and turn on tracing it says it is logging to $Oracle_Home/rdbms/log while if I check it is in fact logging to the new diagnostic_dest location.

So to fix this I ended up setting user_dump_dest and background_dump_dest to the new disgnostic_dest location and it now the Concurrent Request output shows the correct location.