MQTT Versions

How to switch between MQTT protocol versions.

Supported MQTT Versions¶

Best MQTT supports both v3.1.1 and v5 versions of the MQTT protocol.

How to switch between MQTT versions¶

ConnectionOptions has a ProtocolVersion property that can be set directly or through using ConnectionOptionsBuilder:

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var options = new ConnectionOptionsBuilder()
        .WithTCP("test.mosquitto.org", 1883)
        .WithProtocolVersion(SupportedProtocolVersions.MQTT_3_1_1)
        .Build();
var client = new MQTTClient(options);

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