Text to go in the release notes:
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This enhancement to the RELTERMS authorized values list (from the MARC21 3 April 2025 technical notice):
- adds a new relator term "wfw - Writer of foreword"
- removes the deprecated relator term "aui - Author of introduction, etc."
Notes:
1. This change only affects new installations.
2. For existing installations, manually update the RELTERMS authorized values list to reflect the changes from the technical notice.
2. As there is a deprecated term (aui):
- Importing records with a nonexistent value will not delete data from the records. It will simply say "aui (Not an authorized value)".
- For existing installations and records, use batch record modification before deleting the deprecated term (aui), where required.
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