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https://issues.apache.org/jira/browse/FLINK-18430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17144770#comment-17144770
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Aljoscha Krettek commented on FLINK-18430:
------------------------------------------

And yes, I see that moving {{CheckpointListener}} will break some user code but 
I think it's the better long-term solution, especially if we want to decouple 
our API/SDK from the runtime.

> Upgrade stability to @Public for CheckpointedFunction and CheckpointListener
> ----------------------------------------------------------------------------
>
>                 Key: FLINK-18430
>                 URL: https://issues.apache.org/jira/browse/FLINK-18430
>             Project: Flink
>          Issue Type: Improvement
>          Components: API / DataStream
>            Reporter: Stephan Ewen
>            Assignee: Stephan Ewen
>            Priority: Critical
>             Fix For: 1.11.0
>
>
> The two interfaces {{CheckpointedFunction}} and {{CheckpointListener}} are 
> used by many users, but are still (for years now) marked as 
> {{@PublicEvolving}}.
> I think this is not correct. They are very core to the DataStream API and are 
> used widely and should be treated as {{@Public}}.



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