DDEX Standard

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B.1 Changes between Version 1.7 and 1.6.1

Version 1.7 harmonises the communication of acknowledgements and Release status between the SFTP and web service choreographies.

B.2 Changes between Version 1.6.1 and 1.6

Version 1.6.1 fixes a bug with the file naming convention.

B.3 Changes between Version 1.6 and 1.5

Version 1.6 splits the ERN Choreography into an SFTP variant (defined in this standard) and web service variant (defined elsewhere). The SFTP variant now also supports signalling priority deliveries on file-system level. It also removes the provision to communicate Release Deliveries using (insecure) FTP.

B.4 Changes between Versions 1.4 and 1.5

Version 1.5 introduced small changes to the file naming convention and aligns it with current practice.

B.5 Changes between Versions 1.3 and 1.4

Version 1.4 simplified the process of acknowledging the ingestion of a Release or Batch of Releases using the FTP profiles by providing a simplified acknowledgement message. It also added error codes and makes sending acknowledgements mandatory.

Note, version 1.4 changes the file name convention for acknowledgements to better support the newly introduced limited life-span of acknowledgements.

B.6 Changes between Versions 1.2 and 1.3

Version 1.3 supports hard disk deliveries and corrects the naming convention for the manifest file, indicating that the batch is complete from "Manifest_*" to "batch_complete_*".

B.7 Changes between Versions 1.1 and 1.2

Version 1.2 allows the InformationAboutDeliveredAndAvailableReleasesMessageCall (was: InformationAboutAvailableReleasesMessageCall) to be used by a Release Creator as an audit tool. It also allows error messages be communicated to a web service caller and enables a Release Distributor to ask for the “next Release” without specifying what Release that should be.

Version 1.2 also adds a MessageActionType into the InformationAboutAvailableReleases­ReportMessage and to make the MessageType, in the same composite, optional.

In addition some clarifications were added and unnecessary clauses were removed.

B.8 Changes between Versions 1.0 and 1.1

A few changes have been made to increase the abilities for humans to intervene, when needed, into a feed. Other changes have been made to allow for a more streamlined machine-to-machine communication. However, since DDEX is not aware of any implementation of the ECHO version 1.0 standard, the details of these changes are not listed herein.

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