Landowners have the option of updating the payment yields for the program crops with base acreage on their FSA farm units. The choice is between current payment yields or updating to 90% of the average yield for that crop on the farm from 2008 to 2012. These articles discuss the payment yield updating decision.
2014 Farm Bill: Updating Payment Yields
2014 Farm Bill Decisions: Payment Yield Update Option
Base Acre and Yield Updating Tool: A Release of Spreadsheet to Aid in Making Farm Bill Decisions
Documenting Yields for Updating Under the 2014 Farm Bill Using RMA Records