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All DDEX standards come in different versions. Over time, DDEX members and licensees have identified additional requirements that are then added into subsequent versions of a specific standard. DDEX standards are backwards compatible with few exceptions (see below). THis This means that, for instance:

  • A message in version 3.2 of a specific standard will be able to be processed with no change by a processor for version 3.3; and
  • A message in version 3.3 of a specific standard will be able to be processed with no change by a processor for version 3.2, provided that none of the new features of version 3.3 are being used or are important for either party.
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to be added into Things to know when implementing DDEX

Incompatible Versions

There are two cases where messages in two versions may not be compatible to one another:

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