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* api-change:``ssm``: Update ssm client to latest version
* api-change:``codebuild``: Update codebuild client to latest version
* enhancement:HTTP Session: Added the ability to enable TCP Keepalive via the shared config file's ``tcp_keepalive`` option.
* api-change:``apigateway``: Update apigateway client to latest version
* api-change:``storagegateway``: Update storagegateway client to latest version