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https://issues.apache.org/jira/browse/KAFKA-21332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Federico Valeri updated KAFKA-21332:
------------------------------------
    Description: The {{UpdateFeatures}} protocol documentation states that a 
{{max_version_level}} value less than {{1}} can be used to request deletion of 
the finalized feature. However, Kafka trunk rejects negative values and uses 
{{0}} to request deletion. We need to update the protocol documentation.  (was: 
The {{UpdateFeatures}} protocol documentation states that a 
{{max_version_level}} value less than {{1}} can be used to request deletion of 
the finalized feature. However, Kafka trunk rejects negative values and uses 
{{0}} to request deletion.

Update the protocol documentation to state explicitly that {{0}} requests 
deletion and negative values are invalid.)

> Clarify UpdateFeatures.max_version_level deletion semantics
> -----------------------------------------------------------
>
>                 Key: KAFKA-21332
>                 URL: https://issues.apache.org/jira/browse/KAFKA-21332
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Federico Valeri
>            Assignee: Federico Valeri
>            Priority: Minor
>
> The {{UpdateFeatures}} protocol documentation states that a 
> {{max_version_level}} value less than {{1}} can be used to request deletion 
> of the finalized feature. However, Kafka trunk rejects negative values and 
> uses {{0}} to request deletion. We need to update the protocol documentation.



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