Hi there,
while discovering new features in Word 2016 Version 1709 Build 8528.2084 in German and playing with the research feature, I got at some point a tooltip displayed with some information.
The text in the tooltip refers to the ribbon tab "Verweise". However, the name "Verweise" is the name of the tab in older versions of Word. The new name is "Referenzen".
Best,
Mourad