I’m either too silly or too old (or both). 
There are myriads of things to see and change in “My Steinberg”, but no downloadable installers for NU6 (except for the aforementioned “updates”).
Anyway, my main DAW is working again (… a big Thank You to Peter Moritz for my system integrator POM TEC → http://www.pomtec.at/daw.html), and I REALLY hope that I don’t need any more downloadable data from Steinberg in a hurry. 