On October 5, 2023, OCLC installed changes to WorldCat Validation. See the WorldCat Validation Release Notes, October 2023 for full details. Please note the previous September validation release notes were moved to this month.

 This validation installation includes the following new features and enhancements:

• OCLC-MARC Validations of New MARC Codes Announced April 25-August 29, 2023
• MARC 21 Bibliographic Update No. 36 (Announced June 2023)
• MARC 21 Authority Update No. 36 (Announced June 2023) to the Validation Rule Set that Includes All Valid Elements of MARC 21 Authority Format. These changes apply only to the OCLC-MARC Authority validation rule set that includes all valid elements of MARC 21 Authority Format. Name Authority Cooperative (NACO) participants cannot use these authority format changes in the LC/NACO Authority File at this time. The Library of Congress and OCLC will announce the implementation of these elements for use in name and subject authority records in the LC/NACO Authority File at a future date.
• MARC 21 Holdings Update No. 36 (Announced June 2023) 

The following bug fixes have also been included: 

• Normalization No Longer Ignores Certain Retain Characters

 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 cooperative.

See the WorldCat Validation Release Notes, October 2023 at oc.lc/validation-release-notes for more details of the changes installed on October 5, 2023.

Please forgive any duplication of this message.

Kate

Kate James (she/her/hers)

OCLC · Program Coordinator- Metadata Engagement, Membership & Research Division

6565 Kilgour Place, Dublin, Ohio, 43017  United States

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