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If you are updating from a previous version of MQTT Engine to v4.0.14, the configuration of the Legacy State template will be completed as part of the upgrade process and the Legacy Client enabled.
Warning |
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From v4.0.14, MQTT Engine will always attempt to subscribe using the new STATE message format even when the Legacy Client is enabled. If you have restrictive Access Controls Lists configured at your broker you will need to allow access to the spBv1.0/STATE/ topic |
However, if using MQTT Distributor you will see that the tag [MQTT Distributor]Distributor Info/Connected Clients has increased by one. If you have scripting or an application using this tag value, then you will likely need to make the appropriate changes to accommodate this increase in the connected client count.
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