2020-03-20 Version: 3.2.0 - RAM role support MaxSessionDuration. 2020-03-20 Version: 3.2.0 - RAM role support MaxSessionDuration. 2019-06-19 Version: 3.1.0 1, Add DefaultPolicyVersion as return field to GetPolicy interface, Facilitating to get policy document from this interface. 2, Add RotateStrategy as input field to CreatePolicyVersion interface for rotating policy version when reaching policy version limit. 2019-03-14 Version: 3.0.1 1, Update Dependency 2017-10-09 Version: 3.0.0 1, 添加公钥(PublicKey)管理接口 2, 添加ChangePassword接口