[OASIS Issue Tracker] (MQTT-522) Clarification of the behaviour of properties for retained messages

Ian Craggs created MQTT-522:
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             Summary: Clarification of the behaviour of properties for retained messages
                 Key: MQTT-522
                 URL: https://issues.oasis-open.org/browse/MQTT-522
             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
          Issue Type: Bug
          Components: core
    Affects Versions: 5, CSD01
            Reporter: Ian Craggs


The behaviour of properties on retained messages appears to be unspecified. It could be interpreted that properties are not stored nor propagated, but that seems unlikely to be desirable. In the event of propagation, the behaviour of some properties such as the publication expiry interval, should be clarified. I suggest that the "time of receipt" for a retained message should be the time of receipt of the subscribe request which triggers it.



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