es.apache.org/flink/flink-docs-release-1.18/docs/dev/table/sql/queries/time-travel/">Documentation</a></li>
<li><a href="https://cwiki.apache.org/confluence/display/FLINK/FLIP-308%3A&#43;Support&#43;Time&#43;Travel">FLIP-308: Support Time Travel</a></li>
</ul>
<h2 id="streaming-execution-improvements">
  Streaming Execution Improvements
  <a class="anchor" href="#streaming-execution-improvements">#</a>
</h2>
<h3 id="support-operator-level-state-ttl-in-table-api--sql">
  Support Operator-Level State TTL in T