If you are upgrading to 11.2 for the first time, after you have run a baseline update, you must update rules to add the searchTermExpansions property.

The searchTermExpansions property, introduced in 11.2, is used by the Assembler to determine which content-items and keyword redirects should trigger for a given search term. searchTermExpansions has the format: "tokenNumber": {"token": ["representative stems"]}. This property is for internal use only. Oracle recommends that this property not be edited manually.

To update rules: