fvaleri commented on code in PR #14484:
URL: https://github.com/apache/kafka/pull/14484#discussion_r1346951876
##########
docs/upgrade.html:
##########
@@ -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:
I thought about that, but doesn't seem a great user experience. That said, I
don't see a better way, unless we want to create a new tool command to verify
if downgrade is possible between any two versions, and document that.
##########
docs/upgrade.html:
##########
@@ -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:
I thought about that, but doesn't seem a great user experience.
That said, I don't see a better way, unless we want to create a new tool
command to verify if downgrade is possible between any two versions, and
document that.
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