Message Queue for MQTT was upgraded from V2.x.x to V3.x.x starting from July 23, 2020. You can consult documents as needed by following the guidelines provided in this topic.

Determine the documentation version

  1. Log on to the Message Queue for MQTT console, and choose a region, such as China (Hangzhou), in the top navigation bar.
  2. In the left-side navigation pane, click Instances.
  3. On the Instances page, select an instance, and click the Instance Information tab to view Kernel version in the Basic Informationarea.
    kernel_version

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References

For more information about the changes in using the service after this upgrade, see Announcement for upgrading from V2.x.x to V3.x.x.