The IOM profile field mapping structure was updated to Simplified Field Mapping in version 188.8.131.52 This change in the field mapping makes the previous format of Record Type and Value Type into a single-column. This single column is named "Raiser's Edge Field".
You can find this change listed in the IOM User Guide "What's New" section. A snippet of that change listing is shown below:
View of Simplified Field Mapping for IOM v. 3.4 and above:
For specific field mapping examples please see our User Guide