generated: '2026-07-20'
method: searched
source: http://xcbl.org/xcbl40/documentation/releasenotes.shtml
scheme: release-notes-per-library-version
current_version: '4.0'
frequency: none — final release was March 2003; the library is archival
url: http://xcbl.org/xcbl40/documentation/releasenotes.shtml
entries:
  - version: '4.0'
    date: '2003-03'
    breaking: true
    highlights:
      - >-
        First xCBL release using W3C XML Schema (XSDL) as the canonical form,
        replacing SOX as the basis for all future releases.
      - >-
        Initial alignment with the OASIS Universal Business Language (UBL)
        initiative; some UBL recommendations adopted in the 4.0 design.
      - >-
        Multiple namespaces replace the previous monolithic namespace — a shared
        core namespace of reusable types plus eight functional-area namespaces
        that reference only core, enabling independent versioning and better
        parser performance.
      - >-
        Semantics of xCBL 3.5 retained; most 3.5 business documents carried
        forward, with a small number of elements dropped.
      - >-
        New documents added to support integration with backend ERP systems
        (applicationintegration namespace).
      - Transformation maps between xCBL 3.5 and xCBL 4.0 produced with a third-party tool.
    breaking_changes:
      - Canonical schema language changed from SOX to W3C XSDL.
      - Single namespace split into nine namespaces under the rrn:org.xcbl: scheme.
      - Some xCBL 3.5 elements and documents were not carried forward.
  - version: '3.5'
    breaking: false
    highlights:
      - >-
        Added 9 new xCBL documents on top of xCBL 3.0; some 3.0 documents
        modified in response to new requirements and bug fixes.
    url: http://xcbl.org/xcbl35/xcbl35.shtml
  - version: '3.0'
    breaking: false
    highlights:
      - >-
        Published in SOX, W3C XSDL, XDR (including BizTalk Server sets) and XML
        DTD form to support all types of applications.
    url: http://xcbl.org/xcbl30/xcbl30.shtml
  - version: '2.0'
    breaking: false
    highlights:
      - >-
        Release 3 of xCBL 2.0, in SOX, XDR and DTD formats with sample documents
        and documentation.
    url: http://xcbl.org/xcbl20/xcbl20.shtml
notes: >-
  No dated changelog beyond the per-version release notes exists. Commerce One
  ceased operating in 2004, so no entries have been added since the March 2003
  4.0 final release.