showuon commented on code in PR #14484:
URL: https://github.com/apache/kafka/pull/14484#discussion_r1347018327
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docs/upgrade.html:
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@@ -145,7 +145,7 @@ <h5><a id="upgrade_350_kraft"
href="#upgrade_350_kraft">Upgrading KRaft-based cl
</code>
</li>
<li>Note that the cluster metadata version cannot be downgraded to a
pre-production 3.0.x, 3.1.x, or 3.2.x version once it has been upgraded.
- However, it is possible to downgrade to production versions such
as 3.3-IV0, 3.3-IV1, etc.</li>
+ However, it is possible to downgrade to a backwards compatible
metadata version. The active Controller will block any incompatible downgrade
attempt.</li>
Review Comment:
In `features.sh`, there's a `dry_run` option to test if it is able to
downgrade. For this doc update, I think we just need to make it clear without
confusion.
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