Bug 33828 changed the description of the ExportCircHistory system preference but the name itself is still misleading. It has nothing to do with circulation history.
See also bug 39719 - the renaming needs to reflect that this is NOT related to the standard DataTable export options, but is a separate export option--to export in MARC that is shown under the table. Some suggestions ---------------- System preference name: - Currently: ExportCircHistory - Suggestion: ExportPatronCheckouts System preference description: - Currently: [Show|Don't show] the option to export patron checkouts. - Suggestion: [Show|Don't show] the option to export patron checkouts in MARC format. (This an addition export option that is not related to the default table export options.) Manual entry: https://koha-community.org/manual/latest/en/html/circulationpreferences.html#exportcirchistory May also need updating the ExportRemoveFields system preference description as well. This also mentions CSV export as well, I'm not sure how to trigger that as an option for ExportCircHistory. In addition, when ExportCircHistory is enabled you need to select the entries to export, but I don't know how to trigger the tick box beside each entry to select it--if you select 'Export', you get a default browser pop-up with "You must select checkout(s) to export".