https://www.loc.gov/marc/authority/adapndxf.html UPDATE 41 CHANGES ■ New content designators: Subfields $i Relationship information (R) in 368 (Other Attributes of Person or Corporate Body) $i Relationship information (R) in 376 (Family Information) $i Relationship information (R) in 381 (Other Distinguishing Characteristics of Work or Expression) $4 Relationship (R) in 368 (Other Attributes of Person or Corporate Body) $4 Relationship (R) in 376 (Family Information) $4 Relationship (R) in 381 (Other Distinguishing Characteristics of Work or Expression) ■ Changes in content designator names and definitions: Subfield $2 Source redescribed in 368 (Other Attributes of Person or Corporate Body) Appendix HData Provenance Subfields: Data Provenance Code List moved to https://www.loc.gov/standards/valuelist/dataprov.html. New codes bcp47 and dpets added. ■ Fast-track changes: Subfields $g Conversion date renamed Conversion date/time and redescribed in 884 (Description Conversion Information)
Created attachment 191995 [details] [review] Bug 41702: Update MARC21 authority frameworks to Update 41 (December 2025) This patch updates the MARC21 default authority frameworks to include changes brought by Update 41 to the MARC21 format. See https://www.loc.gov/marc/authority/adapndxf.html for the list of changes. Changes to field 368 - Added subfield $4 - Relationship (R) - Added subfield $i - Relationship information (R) Changes to field 376 - Added subfield $4 - Relationship (R) - Added subfield $i - Relationship information (R) Changes to field 381 - Added subfield $4 - Relationship (R) - Added subfield $i - Relationship information (R) Changes to field 884 - Subfield $g renamed to Conversion date/time To test: 1. Apply patch and restart_all 2. Go to Administration > Authority types > Default 3. Check that the additions/modifications are correct as per the list above NOTE: This change only applies to NEW installations. For existing installations, you must make the changes yourself in Administration > Authority types. This is to avoid overwriting customizations libraries might have made to their authority frameworks.
Created attachment 192005 [details] [review] Bug 41702: Update MARC21 authority frameworks to Update 41 (December 2025) This patch updates the MARC21 default authority frameworks to include changes brought by Update 41 to the MARC21 format. See https://www.loc.gov/marc/authority/adapndxf.html for the list of changes. Changes to field 368 - Added subfield $4 - Relationship (R) - Added subfield $i - Relationship information (R) Changes to field 376 - Added subfield $4 - Relationship (R) - Added subfield $i - Relationship information (R) Changes to field 381 - Added subfield $4 - Relationship (R) - Added subfield $i - Relationship information (R) Changes to field 884 - Subfield $g renamed to Conversion date/time To test: 1. Apply patch and restart_all 2. Go to Administration > Authority types > Default 3. Check that the additions/modifications are correct as per the list above NOTE: This change only applies to NEW installations. For existing installations, you must make the changes yourself in Administration > Authority types. This is to avoid overwriting customizations libraries might have made to their authority frameworks. Signed-off-by: David Nind <david@davidnind.com>