DOC: config: Explictly add supported MQTT versions
This avoids any ambiguities on supported versions. This patch depends on
129579813 ("MEDIUM: mqtt: support mqtt_is_valid and mqtt_field_value
converters for MQTTv3.1").
It must be backported with the above commit.
diff --git a/doc/configuration.txt b/doc/configuration.txt
index 4a27f8a..e75d84b 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -16976,6 +16976,8 @@
CONNECT and CONNACK packet types. CONNECT is the first message sent by the
client and CONNACK is the first response sent by the server.
+ Only MQTT 3.1, 3.1.1 and 5.0 are supported.
+
Example:
acl data_in_buffer req.len ge 4