Ok, thanks, that's a useful reference. It seems to answer the DTrace question: nothing new in this release. The packages haven't been updated for months either: https://oss.oracle.com/git/.
I was excited by the InfoWorld article running today with the subtitle "Oracle has completed work on bringing to Linux a version of the widely coveted DTrace tool". Last update was partial, not complete, so this title is very misleading.
InfoWorld has a comments section: (http://www.infoworld.com/d/application-development/oracle-ports-dtrace-oracle-linux-213759?page=0,0). I suggest that someone with authority on the matter post a comment to clear up the confusion.