Slack digest for #dev - 2019-06-01

[Apache Pulsar Slack]

2019-06-01 00:04:39 UTC - Jerry Peng: <!here> Apache Pulsar 2.3.2 is officially 
release!

<http://pulsar.apache.org/release-notes/#2.3.2>
+1 : Penghui Li, jia zhai
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