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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-7461) Remove Backwards compatibility for Flink 1.1 from Flink 1.4
Date Wed, 16 Aug 2017 15:29:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-7461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16128955#comment-16128955

ASF GitHub Bot commented on FLINK-7461:

Github user kl0u commented on the issue:

    From a brief check, I see that this also removed backwards compatibility also for 1.2
for the CEP library. The reason is that the CEP library in Flink 1.2 was the same as in Flink
1.1 (no upgrade) and so it was using the old state abstractions.
    Given that in the ML we discussed about dropping compatibility with 1.1 and agreed on
that, a library should not affect that development, but there must be an explicit discussion
in the ML for this specific matter before merging it. Even if this just means just saying
that you have to go through 1.3 for CEP if you want to migrate from 1.2 to 1.4.

> Remove Backwards compatibility for Flink 1.1 from Flink 1.4
> -----------------------------------------------------------
>                 Key: FLINK-7461
>                 URL: https://issues.apache.org/jira/browse/FLINK-7461
>             Project: Flink
>          Issue Type: Improvement
>    Affects Versions: 1.4.0
>            Reporter: Stefan Richter
>            Assignee: Stefan Richter
> This issue tracks the removal of Flink 1.1 backwards compatibility from Flink 1.4. This
step is helpful for further developments because it will remove many old code paths and special
cases. In particular, we can drop all handling for non-partitionable state, i.e. state that
was created with the old {{Checkpointed}} interface.

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