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Last modified by Helena K. on 2026/06/08 15:16
From version 25.7
edited by Helena K.
on 2026/06/03 13:20
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To version 25.2
edited by Helena K.
on 2026/06/03 13:18
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84 84  == 2.3 Major Changes from 2.1 to 3.0 ==
85 85  
86 86  
87 -[[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] version 3.0 introduces new features, improvements and changes to the Standard in the following key areas:
87 +[[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] (% style="color:#e74c3c" %)version(%%) 3.0 introduces new features, improvements and changes to the Standard in the following key areas:
88 88  
89 89  (% class="wikigeneratedid" id="HInformationModel" %)
90 90  **Information Model**
... ... @@ -95,10 +95,10 @@
95 95  * Support for [[code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] list extension and discriminated union of [[code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] lists
96 96  * Improvements to structure mapping
97 97  * Improvements to [[code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] [[hierarchies>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] for data discovery
98 -* Improvements to constraints
98 +* Improvements to (% style="color:#e74c3c" %)constraints
99 99  
100 100  (% class="wikigeneratedid" id="HVersioningofStructuralMetadataArtefacts" %)
101 -**Versioning of Structural Metadata Artefacts**
101 +**Versioning of [[Structural Metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]] [[Artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]]**
102 102  
103 103  Adoption of the three-number semantic versioning standard for [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]] [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] ([[__https:~~/~~/semver.org__>>https://https:semver.org]])
104 104  
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113 113  (% class="wikigeneratedid" id="HSOAPWebServicesAPI" %)
114 114  **SOAP Web Services API**
115 115  
116 -* The SOAP web services API has been deprecated with version 3.0 standardising on REST
116 +* The SOAP web services API has been deprecated with (% style="color:#e74c3c" %)version(%%) 3.0 standardising on REST
117 117  
118 118  (% class="wikigeneratedid" id="HXML2CJSON2CCSVandEDITransmissionformats" %)
119 119  **XML, JSON, CSV and EDI Transmission formats**
120 120  
121 -The [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]], [[SDMX-JSON>>doc:sdmx:Glossary 2\.1.SDMX-JSON.WebHome]] and [[SDMX-CSV>>doc:sdmx:Glossary 2\.1.SDMX-CSV.WebHome]] specifications have been extended and modified where needed to support the new features and changes such as [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]] and microdata Obsolete [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] data message variants including Generic, Compact, Utility and Cross-sectional have been deprecated standardising on Structure Specific Data as the sole XML format for [[data exchange>>doc:sdmx:Glossary 2\.1.Data exchange.WebHome]] The [[SDMX-EDI>>doc:sdmx:Glossary 2\.1.SDMX-EDI.WebHome]] transmission format for structures and data has been deprecated The organisation of structures into ‘collections’ in [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:sdmx:Glossary 2\.1.SDMX-JSON.WebHome]] structure messages has been flattened and simplified The option to reference structures in [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:sdmx:Glossary 2\.1.SDMX-JSON.WebHome]] messages using Agency, ID and Version has been deprecated with URN now exclusively used for all non-local referencing purpose
121 +The [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]], [[SDMX-JSON>>doc:sdmx:Glossary 2\.1.SDMX-JSON.WebHome]] and [[SDMX-CSV>>doc:sdmx:Glossary 2\.1.SDMX-CSV.WebHome]] specifications have been extended and modified where needed to support the new features and changes such as [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]] and microdata Obsolete [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] data message variants including Generic, Compact, Utility and Cross-sectional have been deprecated standardising on Structure Specific Data as the sole XML format for [[data exchange>>doc:sdmx:Glossary 2\.1.Data exchange.WebHome]] The [[SDMX-EDI>>doc:sdmx:Glossary 2\.1.SDMX-EDI.WebHome]] transmission format for structures and data has been deprecated The organisation of structures into ‘collections’ in [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:sdmx:Glossary 2\.1.SDMX-JSON.WebHome]] structure messages has been flattened and simplified The option to reference structures in [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:sdmx:Glossary 2\.1.SDMX-JSON.WebHome]] messages using Agency, ID and (% style="color:#e74c3c" %)Version(%%) has been deprecated with URN now exclusively used for all non-local referencing purpose
122 122  
123 -Several of the changes are ‘breaking’ meaning that, in specific cases, the version 3.0 specification is not backwardly compatible with earlier versions of the Standard.
123 +Several of the changes are ‘breaking’ meaning that, in specific cases, the (% style="color:#e74c3c" %)version(%%) 3.0 specification is not backwardly compatible with earlier (% style="color:#e74c3c" %)versions(%%) of the Standard.
124 124  
125 125  The principle breaking changes are:
126 126  
127 127  * REST API – The REST API is not backwardly compatible due to modifications to the URLs and query parameters resulting in breaking changes in four of the five main resources.
128 -* SOAP API – Deprecation of the SOAP API means that existing systems designed to use SOAP will not work with version 3.0 registries.
129 -* [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] – [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 2.1 and earlier structure, data and metadata XML messages are not valid in version 3.0. Specifically: legacy data messages including Generic, Compact and Utility are no longer supported. The remaining Structure Specific data message has been changed to support new features such as reporting of [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]] as part of the [[dataset>>doc:sdmx:Glossary 2\.1.Data set.WebHome]], Structure messages have a number of breaking changes, principally modification to the information model, removal of the agency-version-id option for referencing [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] and changes to the way the structures are organised into ‘collections’ within the message.
130 -* [[SDMX-JSON>>doc:sdmx:Glossary 2\.1.SDMX-JSON.WebHome]] – [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 2.1 structure, data and metadata JSON messages are not valid in version 3.0. The data message has been changed to support the improved REST data queries, in particular the ability to retrieve in one operation data from multiple [[datasets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] with potentially different [[Data Structure Definitions>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]. Breaking changes similar to those for the [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] transmission format have been made to the structure message.
131 -* [[SDMX-CSV>>doc:sdmx:Glossary 2\.1.SDMX-CSV.WebHome]] - The CSV data and [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]] messages are not backwardly compatible with those under version 2.1 due to changes to the structure of the messages needed to support new features such as the improved REST API data queries.
132 -* [[SDMX-EDI>>doc:sdmx:Glossary 2\.1.SDMX-EDI.WebHome]] – Deprecation of the EDI transmission format means that existing systems designed to send or receive structures or data in EDI will not work with version 3.0 registries.
133 -* Information Model – Several structures have been changed in the version 3.0 model and three removed. For these reasons the version 3.0 model is not directly compatible with version 2.1 or earlier, although conversion of specific [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] is possible under some circumstances. Loss of information during the conversion process however means that in cases like structure mapping, the conversion is not reversible i.e. it is not possible to recreate the 2.1 structure once it has been converted to the 3.0 model.
128 +* SOAP API – Deprecation of the SOAP API means that existing systems designed to use SOAP will not work with (% style="color:#e74c3c" %)version(%%) 3.0 registries.
129 +* [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] – [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 2.1 and earlier structure, data and metadata XML messages are not valid in (% style="color:#e74c3c" %)version(%%) 3.0. Specifically: legacy data messages including Generic, Compact and Utility are no longer supported. The remaining Structure Specific data message has been changed to support new features such as reporting of [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]] as part of the [[dataset>>doc:sdmx:Glossary 2\.1.Data set.WebHome]], Structure messages have a number of breaking changes, principally modification to the information model, removal of the agency-(% style="color:#e74c3c" %)version(%%)-id option for referencing [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] and changes to the way the structures are organised into ‘collections’ within the message.
130 +* [[SDMX-JSON>>doc:sdmx:Glossary 2\.1.SDMX-JSON.WebHome]] – [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 2.1 structure, data and metadata JSON messages are not valid in (% style="color:#e74c3c" %)version(%%) 3.0. The data message has been changed to support the improved REST data queries, in particular the ability to retrieve in one operation data from multiple [[datasets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] with potentially different [[Data Structure Definitions>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]. Breaking changes similar to those for the [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] transmission format have been made to the structure message.
131 +* [[SDMX-CSV>>doc:sdmx:Glossary 2\.1.SDMX-CSV.WebHome]] - The CSV data and [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]] messages are not backwardly compatible with those under (% style="color:#e74c3c" %)version(%%) 2.1 due to changes to the structure of the messages needed to support new features such as the improved REST API data queries.
132 +* [[SDMX-EDI>>doc:sdmx:Glossary 2\.1.SDMX-EDI.WebHome]] – Deprecation of the EDI transmission format means that existing systems designed to send or receive structures or data in EDI will not work with (% style="color:#e74c3c" %)version(%%) 3.0 registries.
133 +* Information Model – Several structures have been changed in the (% style="color:#e74c3c" %)version(%%) 3.0 model and three removed. For these reasons the (% style="color:#e74c3c" %)version(%%) 3.0 model is not directly compatible with (% style="color:#e74c3c" %)version(%%) 2.1 or earlier, although conversion of specific [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] is possible under some circumstances. Loss of information during the conversion process however means that in cases like structure mapping, the conversion is not reversible i.e. it is not possible to recreate the 2.1 structure once it has been converted to the 3.0 model.
134 134  
135 135  The [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 3.0 Major Changes document provides more information including an analysis of the breaking changes.
136 136  
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