[
    {
        "type": "api-change",
        "category": "SSM",
        "description": "Adds StartDate, EndDate, and ScheduleTimezone to CreateMaintenanceWindow and UpdateMaintenanceWindow; Adds NextExecutionTime to GetMaintenanceWindow and DescribeMaintenanceWindows; Adds CancelMaintenanceWindowExecution, DescribeMaintenanceWindowSchedule and DescribeMaintenanceWindowsForTarget APIs."
    }
]