li>[<a href='https://issues.apache.org/jira/browse/FLINK-19907'>FLINK-19907</a>] -         Channel state (upstream) can be restored after emission of new elements (watermarks)
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-19909'>FLINK-19909</a>] -         Flink application in attach mode could not terminate when the only job is canceled
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-19948'>FLINK-19948</a>] -         Calling NOW() function throws compile exception
</li>
<li