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ijuma merged 2 commits into from
Feb 14, 2022
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MINOR: Clarify producer idempotence default in upgrade docs #11757

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MINOR: Clarify producer idempotence default in upgrade docs
ijuma Feb 14, 2022
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Fix id/href
ijuma Feb 14, 2022
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19 changes: 19 additions & 0 deletions docs/upgrade.html
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,13 @@ <h4><a id="upgrade_3_1_0" href="#upgrade_3_1_0">Upgrading to 3.1.0 from any vers
</li>
</ol>

<h5><a id="upgrade_311_notable" href="#upgrade_311_notable">Notable changes in 3.1.1</a></h5>
<ul>
<li>A bug prevented the producer idempotence default from being applied which meant that it remained disabled unless the user had explicitly set
<code>enable.idempotence</code> to true. See <a href="https://issues.apache.org/jira/browse/KAFKA-13598">KAFKA-13598</a>for more details.
This issue was fixed and the default is properly applied.</li>
</ul>

<h5><a id="upgrade_310_notable" href="#upgrade_310_notable">Notable changes in 3.1.0</a></h5>
<ul>
<li>Apache Kafka supports Java 17.</li>
Expand Down Expand Up @@ -132,8 +139,20 @@ <h4><a id="upgrade_3_0_0" href="#upgrade_3_0_0">Upgrading to 3.0.0 from any vers
</li>
</ol>

<h5><a id="upgrade_301_notable" href="#upgrade_301_notable">Notable changes in 3.0.1</a></h5>
<ul>
<li>A bug prevented the producer idempotence default from being applied which meant that it remained disabled unless the user had explicitly set
<code>enable.idempotence</code> to true. See <a href="https://issues.apache.org/jira/browse/KAFKA-13598">KAFKA-13598</a>for more details.
This issue was fixed and the default is properly applied.</li>
</ul>

<h5><a id="upgrade_300_notable" href="#upgrade_300_notable">Notable changes in 3.0.0</a></h5>
<ul>
<li>The producer has stronger delivery guarantees by default: <code>idempotence</code> is enabled and <code>acks</code> is set to <code>all</code> instead of <code>1</code>.
See <a href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-679%3A+Producer+will+enable+the+strongest+delivery+guarantee+by+default">KIP-679</a> for details.
In 3.0.0 and 3.1.0, a bug prevented the idempotence default from being applied which meant that it remained disabled unless the user had explicitly set
<code>enable.idempotence</code> to true. Note that the bug did not affect the <code>acks=all</code> change. See <a href="https://issues.apache.org/jira/browse/KAFKA-13598">KAFKA-13598</a>for more details.
This issue was fixed and the default is properly applied in 3.0.1, 3.1.1, and 3.2.0.
<li>ZooKeeper has been upgraded to version 3.6.3.</li>
<li>A preview of KRaft mode is available, though upgrading to it from the 2.8 Early Access release is not possible. See
the <code>config/kraft/README.md</code> file for details.</li>
Expand Down