[
    {
        "type": "feature",
        "category": "Lambda",
        "description": "Added default TCP Keep-Alive Curl setting for the Lambda client."
    },
    {
        "type": "enhancement",
        "category": "Rekognition",
        "description": "Documentation updates for Amazon Rekognition"
    },
    {
        "type": "api-change",
        "category": "GuardDuty",
        "description": "Support optional FindingPublishingFrequency parameter in CreateDetector and UpdateDetector operations, and ClientToken on Create* operations"
    }
]