Tony, you're ignoring that Aaron has his own private definition of
Jet that means that ACE is not Jet, even though everyone knows
perfectly well that it is. The last version of Jet 4 does, in fact,
date from 10 years ago, and no features were added to it.
So, on a super-technical level, Aaron is right that no database
engine with the "Jet" in its official name has gotten any new
features in the last 10 years.
In the real world, he's just completely wrong, as with everything
else he ever posts.
And he knows perfectly well he's being deliberately misleading,
i.e., LYING.