Hi Morten, that is correct.
A lot of nodes have been improved! If for instance you have a Math Node set to Add, you have two inputs. If you change it to Square Root, you only get one input. Similarly, a Vector Math set to Cross Product has (only) a Vector output. Set to Dot Product you get (only) a Value output. And if set to Length, it has one Vector input and one Value output. Blender has gotten smarter and now only exposes in- and outputs that make sense.
