I've found a bunch of new aerocaches in Hawaii after the update. Some of them are shown on the Microsoft Flight website, choose "My Flight" and then "Aerocaches." If you filter by "None" you'll find five there.

 

There must be others because I found one by accident that wasn't shown on the website. None of these are shown on the Aerocache screen in the game.

They are not new ! Just re-runs of old daily aeros.

 

Fred.