[DCRM-L] WorldCat Validation Installation Completed, 6 April 2026

[James,Kate]

Please excuse cross-postings. This message has been distributed widely.

On 6 April 2026, OCLC installed changes to WorldCat Validation. See the WorldCat Validation Release Notes, April 2026<https://help.oclc.org/Metadata_Services/WorldShare_Record_Manager/WorldCat_Validation_release_notes_and_known_issues/2026_WorldCat_Validation_release_notes/100WorldCat_Validation_release_notes_April_2026> at oc.lc/validation-release-notes for full details.
This validation installation includes the following new features and enhancements:

This validation installation includes the following new features and enhancements:

  *   OCLC-MARC Validations of New MARC Codes Announced 11 December 2025-27 January 2026
     *   Cartographic Data Source Codes
     *   Data Provenance Category Codes
     *   Genre/Form Code and Term Source Codes
     *   Musical Instrumentation and Voice Code Source Codes
     *   Standard Identifier Source Codes
  *   MARC 21 Bibliographic Update No. 41 (Announced December 2025)
  *   MARC 21 Authority Update No. 41 (Announced December 2025)
  *   MARC 21 Holdings Update No. 41 (Announced December 2025)

These enhancements and fixes are the result of announcements of new MARC elements and codes by the Library of Congress as well as feedback and requests from members of the OCLC community.


Kate


Kate James  (she/her/hers)
OCLC * Program Coordinator- Metadata Engagement, Global Product Management
6565 Kilgour Place, Dublin, Ohio, 43017  United States
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