Comment by m4rtink

IIRC there are some hydrogen powered APUs on the SLS core stage, replacing the Hydrazine powered ones used on Shuttle (both on orbiter & SRBs). The solar panel control on the Orion also seems coo and useful, not to mention having cameras on the arrays for self-inspections.

I am sure there are more subtle innovations like this that would hopefully be useful on more sensible rockets and space vehicles in the future. :)