Please be advised that, in response to customer requests, CME Clearing is expanding the use of the “Previous Executing Firm” (Party Role 201: Pty/@R=”201”) tag in the FIXML 5.0 API. This enhancement is ready to test now in the New Release environment, and is scheduled for Production for Trade Date Monday, July 30, 2018.
Click here for full text of the advisory
18-182