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https://issues.apache.org/jira/browse/FLINK-13414?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17259008#comment-17259008
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Seth Wiesman commented on FLINK-13414:
--------------------------------------
And FWIW I am strongly in favor of removing scala from the user code
classloader. Scala 3.0 has begun releasing milestone candidates and is expected
to stabilize this year. It has a brand new [macro
system|http://dotty.epfl.ch/docs/reference/metaprogramming/macros.html] that is
not compatible with scala 2.x, meaning that will also be a large effort when we
decide to support that target. Removing scala from the classloader will allow
using Flink's java API from any scala version which I think would remove the
pressure on the committers to maintain so many cross builds and give users a
path if they want to upgrade more aggressively than the community.
> Add support for Scala 2.13
> --------------------------
>
> Key: FLINK-13414
> URL: https://issues.apache.org/jira/browse/FLINK-13414
> Project: Flink
> Issue Type: New Feature
> Components: API / Scala
> Reporter: Chaoran Yu
> Priority: Major
>
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