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Nick Burkard edited comment on FLINK-13414 at 1/3/21, 8:04 PM: --------------------------------------------------------------- That sounds good to me [~eloisant]. I agree that using `collection.Seq` first would be the easier path. Flink could always migrate to using `immutable.Seq` later on after 2.13 is supported. Importing `scala.collection.Seq` in all associated files will definitely end up with a large PR, although with the way 2.13 changed collections it seems unavoidable. I have a [draft PR|https://github.com/apache/flink/pull/14544] for point #1, which just proposes dropping Scala 2.11 without upgrading Scala 2.12 to the latest version (2.12.12). The CI build [failed due to one test|https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=11576&view=logs&j=5c8e7682-d68f-54d1-16a2-a09310218a49&t=f508e270-48d6-5f1e-3138-42a17e0714f0&l=5211], but it seems unrelated to my changes (I could be wrong, I'm a bit new to contributing to Flink). Either way, any feedback would be appreciated. :) was (Author: nickburkard): That sounds good to me [~eloisant]. I agree that using `collection.Seq` first would be the easier path. Flink could always migrate to using `immutable.Seq` later on after 2.13 is supported. I have a [draft PR|https://github.com/apache/flink/pull/14544] for point #1, which just proposes dropping Scala 2.11 without upgrading Scala 2.12 to the latest version (2.12.12). The CI build [failed due to one test|https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=11576&view=logs&j=5c8e7682-d68f-54d1-16a2-a09310218a49&t=f508e270-48d6-5f1e-3138-42a17e0714f0&l=5211], but it seems unrelated to my changes (I could be wrong, I'm a bit new to contributing to Flink). Either way, any feedback would be appreciated. :) > 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 > -- This message was sent by Atlassian Jira (v8.3.4#803005)