MINOR: Add back section taken out by mistake
Reviewers: Matthias J. Sax
(or to take advantage of <a href="#upgrade_11_exactly_once_semantics">exactly once semantics</a>),
the newer Java clients must be used.
</li>
+
+ <li>There are several notable changes to the reassignment tool <code>kafka-reassign-partitions.sh</code>
+ following the completion of
+ <a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-455%3A+Create+an+Administrative+API+for+Replica+Reassignment">KIP-455</a>.
+ This tool now requires the <code>--additional</code> flag to be provided when changing the throttle of an
+ active reassignment. Reassignment cancellation is now possible using the
+ <code>--cancel</code> command. Finally, reassignment with <code>--zookeeper</code>
+ has been deprecated in favor of <code>--bootstrap-server</code>. See the KIP for more detail.
+ </li>
</ol>
<h5 class="anchor-heading"><a id="upgrade_250_notable" class="anchor-link"></a><a href="#upgrade_250_notable">Notable changes in 2.5.0</a></h5>
