The twenty-second new feature is Purchase Requisition Partial Purchase. You’ve always been able to increase the quatity to purchase, but you were not able to reduce the quantity. This new feature, allows a smaller quantity to purchase to be specified in order to partial purchase the requisition; the remaining quantity will be cancelled:
The flexibility this offers should be a good thing, but I have concerns around users being able to change the purchasing quantity here if an approval workflow is being used. That said, I already had these concerns about users being able to increase the quantity post approval.