https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=11529 --- Comment #243 from David Cook <dcook@prosentient.com.au> --- Turns out the database update for this change causes unexpected changes to the "Koha to MARC mapping" (via the MARC frameworks) if you had additional non-standard "Koha to MARC mapping" entries. Personally, I wouldn't have updated the marc_subfield_structure automatically. Here's the query used: UPDATE marc_subfield_structure JOIN fieldmapping ON tagfield = fieldcode AND subfieldcode=tagsubfield SET kohafield='biblio.subtitle' WHERE fieldmapping.frameworkcode=''" This would be a better query: UPDATE marc_subfield_structure JOIN fieldmapping ON tagfield = fieldcode AND subfieldcode=tagsubfield SET kohafield='biblio.subtitle' WHERE fieldmapping.frameworkcode=''" and field='subtitle' Now I have a lot of different MARC fields mapped to biblio.subtitle 😅 Of course, even the modified query wouldn't be great, because in my case 245$h would get mapped to biblio.title too which isn't what we'd want. -- You are receiving this mail because: You are watching all bug changes.