i>
                        <li>The <code>kafka.admin.ZkSecurityMigrator</code> tool was removed.
                        </li>
                    </ul>
                </li>
                <li><a id="upgrade_400_notable_connect" href="#upgrade_400_notable_connect"><b>Connect</b></a>
                    <ul>
                        <li>The <code>whitelist</code> and <code>blacklist</code> configurations were removed from the <code>org.apache.kafka.connect.transforms.ReplaceField</code> transformation.
    