engineLatestVersion

When set to true, the data source attempts to return the most recent version matching the other criteria you provide. You must use engine_latest_version with preferred_instance_classes and/or preferred_engine_versions. Using engine_latest_version will avoid multiple RDS DB Instance Classes errors. If you use engine_latest_version with preferred_instance_classes, the data source returns the latest version for the first matching instance class (instance class priority). Note: The data source uses a best-effort approach at selecting the latest version but due to the complexity of version identifiers across engines, using engine_latest_version may not return the latest version in every situation.