On December 10, 2018, OCLC installed changes to WorldCat validation.  The new features and enhancements include:
Additionally, the relationship rules for bibliographic field 046 were corrected to allow subfields $c and $e to coexist in the same field.
See the WorldCat Validation Release Notes for December 2018 at https://help.oclc.org/Metadata_Services/WorldShare_Record_Manager/WorldCat_validation_release_notes_and_known_issues/2018_release_notes for more details.
Please forgive any duplication of this message.
Jay Weitz
OCLC · Senior Consulting Database Specialist, WorldCat Metadata Quality, Global Product Management
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