[jira] [Created] (FLINK-20598) Update playgrounds for Flink 1.12

[Shang Yuanchun (Jira)]

David Anderson created FLINK-20598:
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             Summary: Update playgrounds for Flink 1.12
                 Key: FLINK-20598
                 URL: https://issues.apache.org/jira/browse/FLINK-20598
             Project: Flink
          Issue Type: Improvement
          Components: Documentation / Training
    Affects Versions: 1.12.0
            Reporter: David Anderson
             Fix For: 1.12.0


The various playgrounds all need to be updated for the new 1.12.0 release.



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