tive command-line configurations
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-19569'>FLINK-19569</a>] -         Upgrade ICU4J to 67.1+
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-19677'>FLINK-19677</a>] -         TaskManager takes abnormally long time to register with JobManager on Kubernetes
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-19698'>FLINK-19698</a>] -         Add close() method and onCheckpointComplete() to the Source.
</li>
<li>[<a href='