Yes, old news.
It shold be realized by all that the early KingAir aircraft were developed from the original QueenAir design (yes the model 65, type certificate, ie: 3A20) and shared many components of such...except the engines and necessary mods for pressurization...and even here, more or less the same as the QueenAir 88 model, with the cabin pressurized with a Roots blower (cabin supercharger).
Certainly an old design, that has stood the test of time...some 40+ years later.
Some others are faster...but the 'ole standby sure is comfortable.
