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* api-change:``appmesh``: Update appmesh client to latest version
* api-change:``application-autoscaling``: Update application-autoscaling client to latest version
* api-change:``lookoutvision``: Update lookoutvision client to latest version
* api-change:``organizations``: Update organizations client to latest version
* feature:Python: Dropped support for Python 3.4 and 3.5
* api-change:``s3control``: Update s3control client to latest version
* api-change:``rds-data``: Update rds-data client to latest version
* api-change:``medialive``: Update medialive client to latest version
* api-change:``route53``: Update route53 client to latest version
* api-change:``location``: Update location client to latest version
* enhancement:s3: Amazon S3 now supports AWS PrivateLink, providing direct access to S3 via a private endpoint within your virtual private network.
* api-change:``iotwireless``: Update iotwireless client to latest version