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https://issues.apache.org/jira/browse/KAFKA-1485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14086720#comment-14086720
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Gwen Shapira commented on KAFKA-1485:
-------------------------------------

3.4.5 was a mistake - I uploaded the patch before I saw the comment from 
[~toddpalino] and used the version shipping in CDH as the stable one. 3.4.6 
actually fixes at least one nasty bug, so lets go with that. I attached a 
second revision.

3.4.6 clients should work with 3.3.X servers but this combination wasn't deeply 
tested (just like the reverse 3.4.X servers with 3.3.X clients). 
I want to hope that 2.5 years after 3.4.X is out, there are not many 3.3.X 
servers out there... but we don't have a reason to recommend an immediate 
upgrade to those who are living in the past :)

> Upgrade to Zookeeper 3.4.x
> --------------------------
>
>                 Key: KAFKA-1485
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1485
>             Project: Kafka
>          Issue Type: Wish
>    Affects Versions: 0.8.1.1
>            Reporter: Machiel Groeneveld
>            Assignee: Gwen Shapira
>              Labels: newbie
>             Fix For: 0.8.2
>
>         Attachments: KAFKA-1485.2.patch, KAFKA-1485.patch
>
>
> I can't run projects alongside Kafka that use zookeeper 3.4 jars. 3.4 has 
> been out for 2.5 years and seems to be ready for adoption.
> In particular Apache Storm will upgrade to Zookeeper 3.4.x in their next 
> 0.9.2 release. I can't run both versions in my tests at the same time. 
> The only compile problem I saw was in EmbeddedZookeeper.scala 



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