Imported from previous forum
[ original email was from Francesc Prats - fprats@meff.com ]
In order to support different feed versions (always within FIX 4.3), I would like to know if there is an standard way to define it.
The situation could be such as this: We are an Exchange and our n Firms have a copy of our Server FIX Engine on their side and the Client APPs are connected to the ServerFIX Engine. We decide to modify an existent functionality and that means, for instance, some changes with the actual one so we gradually upgrade the n Server FIX Engines. We would like to support, also, both versions on our Server FIX Engine in order to allow that the Client APP could decide which one to receive.