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* api-change:``directconnect``: Update directconnect client to latest version
* api-change:``glue``: Update glue client to latest version
* api-change:``iot``: Update iot client to latest version
* api-change:``cloudhsmv2``: Update cloudhsmv2 client to latest version
* api-change:``sagemaker``: Update sagemaker client to latest version
* api-change:``mq``: Update mq client to latest version
* enhancment:Timestamp Serialization: Support explicit timestamp serialization per timestamp shape.
* api-change:``glacier``: Update glacier client to latest version