-tolerance/queryable_state/">Queryable State</a>
is now officially deprecated and will be dropped in Flink 2.0.</li>
<li><a href="https://nightlies.apache.org/flink/flink-docs-release-1.17/docs/dev/dataset/overview/">The DataSet API</a> is now
officially deprecated. Users are recommended to migrate to the DataStream API with
<a href="https://nightlies.apache.org/flink/flink-docs-release-1.18/docs/dev/datastream/execution_mode/">execution mode</a> <code>BATCH</code>.</li>
</ul>
<h1 id="upgrade-notes">
  Upgr