Bug 41697

Summary: Update MARC21 default framework to Update 41 (December 2025)
Product: Koha Reporter: Caroline Cyr La Rose <caroline.cyr-la-rose>
Component: MARC Bibliographic data supportAssignee: Caroline Cyr La Rose <caroline.cyr-la-rose>
Status: Needs Signoff --- QA Contact: Testopia <testopia>
Severity: enhancement    
Priority: P5 - low    
Version: Main   
Hardware: All   
OS: All   
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Crowdfunding goal: 0 Patch complexity: ---
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Attachments: Bug 41697: Update MARC21 default framework to Update 41 (December 2025)
Bug 41697: Update MARC21 value builders to Update 41 (December 2025)

Description Caroline Cyr La Rose 2026-01-23 18:59:21 UTC
https://www.loc.gov/marc/bibliographic/bdapndxg.html

 ■ New content designators:
Subfields
$i Relationship information (R) in 381 (Other Distinguishing Characteristics of Work or Expression)
$z Title statement context note (NR) in 245 (Title Statement)
$4 Relationship (R) in 381 (Other Distinguishing Characteristics of Work or Expression)

■ Changes in content designator names and definitions:
Subfield
$c Statement of responsibility, etc. redescribed in 245 (Title Statement)
Appendix
JData 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:
New Subfields
$6Linkage (NR) in 060 (National Library of Medicine Call Number)
$6Linkage (NR) in 070 (National Agricultural Library Call Number)
New Codes
r - Remote sensing image in Maps 008/25 (Type of cartographic material) (006/08)
t - 4K Ultra HD Blu-ray in Videorecording 007/04 (Videorecording format)
Subfields
$d Groove characteristic redescribed in 344 (Sound Characteristics)
$g Conversion date renamed Conversion date/time and redescribed in 884 (Description Conversion Information)

Code
s - Blu-ray disc redescribed in Videorecording 007/04 (Videorecording format)
Comment 1 Caroline Cyr La Rose 2026-01-23 20:47:06 UTC
Created attachment 191990 [details] [review]
Bug 41697: Update MARC21 default framework to Update 41 (December 2025)

This patch updates the MARC21 default bibliographic framework to include
changes brought by Update 41 to the MARC21 format.

See https://www.loc.gov/marc/bibliographic/bdapndxg.html for the list of
changes.

Changes to field 060
- Added subfield $6 - Linkage (NR)

Changes to field 070
- Added subfield $6 - Linkage (NR)

Changes to field 245
- Added subfield $z - Title statement context note (NR)

Changes to field 381
- Added subfield $i - Relationship information (R)
- Added subfield $4 - Relationship (R)

Changes to field 884
- Subfield $g renamed to Conversion date/time

To test:
1. Apply patch and restart_all
2. Go to Administration > MARC bibliographic framework > Default
   framework
3. Check that the additions/modifications are correct as per the list
   above
4. Optionally, run the MARC bibliographic framework test, and make sure
   there are no errors

NOTE: This change only applies to NEW installations. For existing
installations, you must make the changes yourself in Administration >
MARC bibliographic framework. This is to avoid overwriting
customizations libraries might have made to their cataloging frameworks.
Comment 2 Caroline Cyr La Rose 2026-01-23 20:47:08 UTC
Created attachment 191991 [details] [review]
Bug 41697: Update MARC21 value builders to Update 41 (December 2025)

This patch updates the MARC21 value builders to include
changes brought by Update 41 to the MARC21 format.

Changes to field 006
- New value r - Remote sensing image in 006/08 for Maps

Changes to field 007
- New value t - 4K Ultra HD Blu-ray in 007/04 for Videorecordings

Changes to field 008
- New value r - Remote sensing image in 008/25 for Maps

To test:
1. Apply patch and reset_all
2. Go to Cataloging > New record
3. Open field 006 and click on the field editor icon
4. Under "Type of material" choose MP - Maps and confirm
   --> Under 08 - Type of cartographic material, there should
   be an option r- Remote-sensing image
5. Click "Cancel" to close the window
6. Click on the field editor icon for 007
7. Under "Material type", choose Videorecording
   --> Under 04 Videorecording format, there should be an
   option t- 4K Ultra HD Blu-ray
8. Click "Cancel" to close the window
9. Click on the field editor icon for 008
10.  Under "Type of Material" choose MP - Maps and confirm
   --> Under 25 - Type of cartographic material, there should
   be an option r- Remote-sensing image
Comment 3 Caroline Cyr La Rose 2026-01-23 20:58:41 UTC
Let me know if I forgot anything. I found this one a bit peculiar to change.