[
  {
    "category": "``docdb``",
    "description": "[``botocore``] This release adds Global Cluster Failover capability which enables you to change your global cluster's primary AWS region, the region that serves writes, during a regional outage. Performing a failover action preserves your Global Cluster setup.",
    "type": "api-change"
  },
  {
    "category": "``ecs``",
    "description": "[``botocore``] This release introduces a new ContainerDefinition configuration to support the customer-managed keys for ECS container restart feature.",
    "type": "api-change"
  },
  {
    "category": "``iam``",
    "description": "[``botocore``] Make the LastUsedDate field in the GetAccessKeyLastUsed response optional. This may break customers who only call the API for access keys with a valid LastUsedDate. This fixes a deserialization issue for access keys without a LastUsedDate, because the field was marked as required but could be null.",
    "type": "api-change"
  },
  {
    "category": "``s3``",
    "description": "[``botocore``] Amazon Simple Storage Service / Features  : Adds support for pagination in the S3 ListBuckets API.",
    "type": "api-change"
  }
]