[
    {
        "type": "feature",
        "category": "CodeDeploy",
        "description": "CodeDeploy supports IAM Session Arns in addition to IAM User Arns for on premise host authentication."
    },
    {
        "type": "feature",
        "category": "ECS",
        "description": "Amazon EC2 Container Service (ECS) now supports the ability to customize the placement of tasks on container instances."
    }
]