[GitHub] zeppelin issue #3206: [WIP][ZEPPELIN-3810] Support Spark 2.4

[HyukjinKwon]

Github user HyukjinKwon commented on the issue:

    https://github.com/apache/zeppelin/pull/3206
  
    This is a WIP. We should wait for Spark 2.4.0.
    
    cc @zjffdu and @felixcheung


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