MINOR; Update upgrade documentation for 3.3.1
Reviewers: David Arthur
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-<h4><a id="upgrade_3_3_0" href="#upgrade_3_3_0">Upgrading to 3.3.0 from any version 0.8.x through 3.2.x</a></h4>
+<h4><a id="upgrade_3_3_1" href="#upgrade_3_3_1">Upgrading to 3.3.1 from any version 0.8.x through 3.2.x</a></h4>
<p><b>If you are upgrading from a version prior to 2.1.x, please see the note below about the change to the schema used to store consumer offsets.
Once you have changed the inter.broker.protocol.version to the latest version, it will not be possible to downgrade to a version prior to 2.1.</b></p>
</li>
</ol>
-<h4><a id="upgrade_3_3_0" href="#upgrade_3_3_0">Upgrading a KRaft-based cluster to 3.3.0 from any version 3.0.x through 3.2.x</a></h4>
+<h4><a id="upgrade_3_3_1" href="#upgrade_3_3_1">Upgrading a KRaft-based cluster to 3.3.1 from any version 3.0.x through 3.2.x</a></h4>
-<p><b>If you are upgrading from a version prior to 3.3.0, please see the note below. Once you have changed the metadata.version to the latest version, it will not be possible to downgrade to a version prior to 3.3-IV0.</b></p>
+<p><b>If you are upgrading from a version prior to 3.3.1, please see the note below. Once you have changed the metadata.version to the latest version, it will not be possible to downgrade to a version prior to 3.3-IV0.</b></p>
<p><b>For a rolling upgrade:</b></p>
<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>
</ol>
-<h5><a id="upgrade_330_notable" href="#upgrade_330_notable">Notable changes in 3.3.0</a></h5>
+<h5><a id="upgrade_331_notable" href="#upgrade_331_notable">Notable changes in 3.3.1</a></h5>
<ul>
<li>KRaft mode is production ready for new clusters. See <a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-833%3A+Mark+KRaft+as+Production+Ready">KIP-833</a>
for more details (including limitations).
