[
    {
        "type": "api-change",
        "category": "EC2",
        "description": "This release adds support for Security group referencing over Transit gateways, enabling you to simplify Security group management and control of instance-to-instance traffic across VPCs that are connected by Transit gateway."
    },
    {
        "type": "api-change",
        "category": "DocDB",
        "description": "Amazon DocumentDB updates for new cluster storage configuration: Amazon DocumentDB I\/O-Optimized."
    },
    {
        "type": "api-change",
        "category": "CodeStarconnections",
        "description": "This release updates a few CodeStar Connections related APIs."
    }
]