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https://issues.apache.org/jira/browse/KAFKA-18601?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismael Juma updated KAFKA-18601:
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Description: 3.3.0 was the first KRaft release that was deemed
production-ready and also when KIP-778 (KRaft to KRaft upgrades) landed. Given
that, it's reasonable for 4.x to only support upgrades from 3.3.0 or newer (the
metadata version also needs to be set to "3.3" or newer before upgrading).
(was: KAKFA-14552 sets the baseline of server protocol versions to 3.0 (first
version supported by KRaft), but there is an argument that we can go further
and set it to 3.3 (first production ready version of KRaft).)
> Assume a baseline of 3.3 for server protocol versions
> -----------------------------------------------------
>
> Key: KAFKA-18601
> URL: https://issues.apache.org/jira/browse/KAFKA-18601
> Project: Kafka
> Issue Type: Improvement
> Reporter: Ismael Juma
> Assignee: Ismael Juma
> Priority: Blocker
> Fix For: 4.0.0
>
>
> 3.3.0 was the first KRaft release that was deemed production-ready and also
> when KIP-778 (KRaft to KRaft upgrades) landed. Given that, it's reasonable
> for 4.x to only support upgrades from 3.3.0 or newer (the metadata version
> also needs to be set to "3.3" or newer before upgrading).
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