Just built two more of these rigs with some buddies and they were the same hinge pins as when I built my other two about a year ago. These came (as backordered) from AMAIN and when I called Tekno because everyone was backordered, they said AMAIN would be the first to receive the kits. Going by that, I'd say these were the newest of the new kits.

If you do find they are releasing new hinge pins, post the part number for everyone.