[
    {
        "type": "api-change",
        "category": "SageMaker",
        "description": "Amazon SageMaker Automatic Model Tuning now supports specifying Hyperband strategy for tuning jobs, which uses a multi-fidelity based tuning strategy to stop underperforming hyperparameter configurations early."
    },
    {
        "type": "api-change",
        "category": "EC2",
        "description": "This feature allows customers to create tags for vpc-endpoint-connections and vpc-endpoint-service-permissions."
    },
    {
        "type": "api-change",
        "category": "DynamoDB",
        "description": "Increased DynamoDB transaction limit from 25 to 100."
    }
]