ncluding Connect and Kafka Streams) version is 2.1 or higher before upgrading brokers to 4.0.
	    Finally, care also needs to be taken when it comes to kafka clients that are not part of Apache Kafka, please see
            <a href="https://cwiki.apache.org/confluence/x/K5sODg">KIP-896</a> for the details.
        </li>
        <li>
            Apache Kafka 4.0 only supports KRaft mode - ZooKeeper mode has been removed. About version upgrade,
            check <a href="/{{version}}/documentation.html#upgra