There's tons of things in the new EA. The two biggest is the modeler is now integrated and the new unit testing. I'm going to do a few short demos of each and some of the things they offer. First the modeler not only allow you to open a model and see what was created in the full SQL Developer Data Modeler but it allows for drag and drop.
I'm going to try and do a bunch of short demos of some of the new things.
Here's the first, a very short demo of how to do it.