We just upgraded to CiviCRM 4.6.6 (under Joomla! 3.4.4, PHP Version 5.4.44, MySQL 5.6.23) from CiviCRM 4.5.2.
The fields Soft Credit For and Soft Credit Amount no longer appear in the drop-down list when I choose "Select fields to export" as an option for exporting contributions. They also disappeared from my saved field mappings, and no longer appear in Search Builder.
Unless I select "Contributions Only" in my search, I see data in these fields. The fields are exported if I use the "Export PRIMARY fields" option, but that means I have to export a lot of fields I don't want and can't export any custom fields in the same .csv file.
Is this an intentional omission or will these fields be added back to the field selection drop-down for contributions in a subsequent release?