frankvicky commented on code in PR #18961:
URL: https://github.com/apache/kafka/pull/18961#discussion_r1966538457
##########
docs/upgrade.html:
##########
@@ -61,8 +61,7 @@ <h5><a id="upgrade_400_notable"
href="#upgrade_400_notable">Notable changes in 4
Apache Kafka 4.0 only supports KRaft mode - ZooKeeper mode has
been removed. As such, broker upgrades to 4.0.x (and higher) require KRaft mode
and
the software and metadata versions must be at least 3.3.x (the
first version when KRaft mode was deemed production ready). For clusters in
KRaft mode
with versions older than 3.3.x, we recommend upgrading to 3.9.x
before upgrading to 4.0.x. Clusters in ZooKeeper mode
- have to be migrated to KRaft mode before they can be upgraded to
4.0.x as described below.
- <!--#include virtual="zk2kraft.html" -->
+ have to be <a
href="/39/documentation.html#kraft_zk_migration">migrated to KRaft mode</a>
before they can be upgraded to 4.0.x as described below.
Review Comment:
Oops.
I should have checked it as well. 🙇🏼
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