2021-02-01 Version: 1.0.5
- Support device credential for mqtt.

2020-08-18 Version: 1.0.4
- Support session query operations.

2020-04-29 Version: 1.0.3
- Support groupId operations.

2020-04-23 Version: 1.0.2
- Support groupId operations.

2020-03-05 Version: 1.0.1
- Update send message noPresistFlag param.

2020-02-13 Version: 1.0.0
- Init MQTT SDK .