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https://issues.apache.org/jira/browse/KAFKA-7524?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismael Juma resolved KAFKA-7524.
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Resolution: Fixed
> Recommend Scala 2.12 and use it for development
> -----------------------------------------------
>
> Key: KAFKA-7524
> URL: https://issues.apache.org/jira/browse/KAFKA-7524
> Project: Kafka
> Issue Type: Improvement
> Reporter: Ismael Juma
> Assignee: Ismael Juma
> Priority: Major
> Fix For: 2.2.0
>
>
> Scala 2.12 has better support for newer Java versions and includes additional
> compiler warnings that are helpful during development. In addition, Scala
> 2.11 hasn't been supported by the Scala community for a long time, the soon
> to be released Spark 2.4.0 will finally support Scala 2.12 (this was the main
> reason preventing many from upgrading to Scala 2.12) and Scala 2.13 is at the
> RC stage. It's time to start recommending the Scala 2.12 build as we prepare
> support for Scala 2.13 and start thinking about removing support for Scala
> 2.11.
> In the meantime, Jenkins will continue to build all supported Scala versions
> (including Scala 2.11) so the PR and trunk jobs will fail if people
> accidentally use methods introduced in Scala 2.12.
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