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Posted to issues@spark.apache.org by "Dongjoon Hyun (Jira)" <ji...@apache.org> on 2019/09/18 20:31:00 UTC
[jira] [Assigned] (SPARK-28683) Upgrade Scala to 2.12.10
[ https://issues.apache.org/jira/browse/SPARK-28683?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dongjoon Hyun reassigned SPARK-28683:
-------------------------------------
Assignee: Yuming Wang
> Upgrade Scala to 2.12.10
> ------------------------
>
> Key: SPARK-28683
> URL: https://issues.apache.org/jira/browse/SPARK-28683
> Project: Spark
> Issue Type: Improvement
> Components: Build
> Affects Versions: 3.0.0
> Reporter: Yuming Wang
> Assignee: Yuming Wang
> Priority: Major
>
> *Note that we tested 2.12.9 via https://github.com/apache/spark/pull/25404 and found that 2.12.9 has a serious bug, https://github.com/scala/bug/issues/11665 *
> We will skip 2.12.9 and try to upgrade 2.12.10 directly in this PR.
> h3. Highlights (2.12.9)
> * Faster compiler: [5–10% faster since 2.12.8|https://scala-ci.typesafe.com/grafana/dashboard/db/scala-benchmark?orgId=1&from=1543097847070&to=1564631199344&var-branch=2.12.x&var-source=All&var-bench=HotScalacBenchmark.compile&var-host=scalabench%40scalabench%40], thanks to many optimizations (mostly by Jason Zaugg and Diego E. Alonso-Blas: kudos!)
> * Improved compatibility with JDK 11, 12, and 13
> * Experimental support for build pipelining and outline type checking
> [https://github.com/scala/scala/releases/tag/v2.12.9]
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