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* api-change:``servicediscovery``: [``botocore``] Bugfix: Improved input validation for RegisterInstance action, InstanceId field
* api-change:``kafka``: [``botocore``] IAM Access Control for Amazon MSK enables you to create clusters that use IAM to authenticate clients and to allow or deny Apache Kafka actions for those clients.
* api-change:``ssm``: [``botocore``] SSM feature release - ChangeCalendar integration with StateManager.
* api-change:``snowball``: [``botocore``] AWS Snow Family adds APIs for ordering and managing Snow jobs with long term pricing