(Apologies - I sent the same mail to the dev mailing list by mistake!) Hello, I set-up a simple Java client to publish a sample message to Kafka broker. I can see API Versions request v3 and response messages. I am able to map all the bytes as described here (https://kafka.apache.org/protocol.html#The_Messages_ApiVersions) for API Versions request and response except for 1 byte as shown below.
- Length - INT32 - Correlation ID - INT32 - Error code - INT16 - ? - 1 byte value 0x3c - Array of API keys, supported versions and tagged fields - Throttle - INT32 - Tagged fields. Can you please help me understand? Thanks.