fvaleri commented on code in PR #14484:
URL: https://github.com/apache/kafka/pull/14484#discussion_r1347342290
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docs/upgrade.html:
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@@ -144,8 +144,10 @@ <h5><a id="upgrade_350_kraft"
href="#upgrade_350_kraft">Upgrading KRaft-based cl
./bin/kafka-features.sh upgrade --metadata 3.5
</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>
+ <li>Note that cluster metadata downgrade is not supported, although it
might be possible to do a safe downgrade in some cases.
Review Comment:
I know it's a strong sentence, but I think it reflects the user experience.
The reality is that metadata is still evolving at a fast pace. Maybe this will
change in the future and we will remove/change that sentence.
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