[ { "type": "api-change", "category": "EMR", "description": "Amazon EMR now supports auto-terminating idle EMR clusters. You can specify the idle timeout value when enabling auto-termination for both running and new clusters and Amazon EMR automatically terminates the cluster when idle timeout kicks in." }, { "type": "enhancement", "category": "S3", "description": "Documentation updates for Amazon S3." }, { "type": "api-change", "category": "EC2", "description": "This release adds the BootMode flag to the ImportImage API and showing the detected BootMode of an ImportImage task." } ]