AirVenture 2022: Used Avionics: Shop With Caution - AVweb

So the automotive industry constriction seems to be at least in part that they are depending on very old technology semiconductors (1980s tech) that fell off of the supply chain due to the last remaining fab using the old equipment having a fire and shutting down.

Is that the same issue with avionics? If so are we going to have to wait for the manufacturers to decide they have to reemgineer the boards with newer tech and the FAA to agree to approve the engineering change?