>>That's an amusing requirement. Do they really want vast amounts of browser-side crap? From the list of Javascript client-side libraries in Wikipedia, almost all of them are more than 5 years old.[1] JQuery is over 10 now.
I don't understand your criticism. At all. It comes across as intentionally obtuse.
Yes, JQuery is over 10 years old. But there have been many releases since then. Going by its release history [1], using version 1.5+ as of this writing would fulfill the requirement you quoted. Any earlier version would not qualify as "modern" (which is a definition I agree with considering how quickly this particular landscape moves).