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WorldCat Validation Installation, 4 December 2025

  • 1.  WorldCat Validation Installation, 4 December 2025

    Posted an hour ago

    Please excuse cross-postings.

    Hello everyone,

    My apologies for the short notice in providing information about this intended update.

    On 4 December 2025, OCLC expects to install changes to WorldCat Validation, including the following new features and enhancements:

    This validation installation includes the following new features and enhancements:

    • OCLC-MARC Validations of New MARC Codes Announced 24 July 2025-25 September 2025
    • Authority record changes:
      • Field 046 subfield $3 
      • Fields 335, 336, 348, 387, and 388 
      • LC/NACO Authority records: 
        • Field 024, subfields $c, $d, $q, and $z 
        • Field 375 
        • Fields 385 and 386, subfields $m and $n 
        • Field 670 
      • Canadiana Authority records:
        • Field 375 

    The following bug fixes will also be included:

    • In Authority records, in field 083, subfields $a and $b are no longer required to contain at least 3 characters when subfield $z is present
    • In Bibliographic and Authority formats, field 387 subfield $k may now include any text string
    • In Bibliographic format, in fields 610 and 710, subfield $s may be present even when subfield $t is not
    • In Bibliographic, Holdings, and Authority formats, field 857 subfield $y may now include any text string

    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.

    See the WorldCat Validation Release Notes, December 2025 at oc.lc/validation-release-notes for more details on the changes that we plan to install on 4 December 2025.

    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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