66e91a03_ty_FAQs___The_Exchange_Network__Change_Required_
[Product or Tool] All Node and Node Client installations based on v1.1 Node Specification [Information for Users] You do not need to make any changes to Nodes or Node Clients built against v1.1 of the Exchange Network Node Functional Specification. Data exchanges that are currently running on v1.1-based Nodes and Node Clients are not affected. [Change Required?] 
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Node Interoperability FAQs | The Exchange Network
Change Required?