If there is an overlap between the values, the Minimum Versions to Keep field takes precedence over the Attachment Age Version field.
Example: There are 10 attachment versions and all are older than 1 year. If the script is configured to delete attachments older than 6 months and keep 3 at minimum, v8-v10 are kept to abide by the minimum number of versions to keep field and v1-v7 are deleted.
Additionally, when a Minimum Number of Versions to Keep is entered, only the latest versions are kept.
Example: If there are v1-v5 and 2 are selected to keep at a minimum, v4 and v5 (the current version) are kept.