frankvicky commented on code in PR #20208:
URL: https://github.com/apache/kafka/pull/20208#discussion_r2221474640
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docs/upgrade.html:
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@@ -34,9 +34,11 @@ <h5><a id="upgrade_420_notable"
href="#upgrade_420_notable">Notable changes in 4
<li>The <code>KafkaPrincipalBuilder</code> now extends
<code>KafkaPrincipalSerde</code>. Force developer to implement
<code>KafkaPrincipalSerde</code> interface for custom
<code>KafkaPrincipalBuilder</code>.
For further details, please refer to <a
href="https://cwiki.apache.org/confluence/x/1gq9F";>KIP-1157</a>.
</li>
+ <li>
+ The support for MX4J library, enabled through
<code>kafka_mx4jenable</code> system property, was deprecated and will be
removed in the next major release.
Review Comment:
We have a redundant space here.
```suggestion
The support for MX4J library, enabled through
<code>kafka_mx4jenable</code> system property, was deprecated and will be
removed in the next major release.
```
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