This topic describes the MQ for MQTT API releases.

It also provides the functions of each API version. See the following table.

Table 1. API version
API version Release date Description
3.1.0 2019-02-15
  • Incompatible with the 2.x.x version and has the same functions as the online console.
  • Provided all the functions of instantiation.
  • Changed the consumerId and producerId parameters to the groupId parameter.
  • Removed the OnsRegionId parameter to simplify API calling.
2.1.4 2019-01-25
  • Compatible with the 2.x.x version.
  • Instantiation fields returned by calling OnsTopicList.
2.0.1 2018-04-17 Added an operation for creating an MQTT group ID.
2.0.0 2017-09-19
  • Added an operation for message trace query.
  • Added access control to the write operation.
1.3.3 2017-08-10
  • Added an operation for read and write prohibiting.
  • Added an operation for prohibiting ConsumerId reading.