[
    {
        "type": "api-change",
        "category": "AppStream",
        "description": "This release introduces multi-session fleets, allowing customers to provision more than one user session on a single fleet instance."
    },
    {
        "type": "enhancement",
        "category": "CloudFormation",
        "description": "Documentation updates for AWS CloudFormation"
    },
    {
        "type": "api-change",
        "category": "EntityResolution",
        "description": "Changed \"ResolutionTechniques\" and \"MappedInputFields\" in workflow and schema mapping operations to be required fields."
    },
    {
        "type": "api-change",
        "category": "LookoutEquipment",
        "description": "This release adds APIs for the new scheduled retraining feature."
    }
]