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<h1>
<a href="/2024/11/27/apache-flink-cdc-3.2.1-release-announcement/">Apache Flink CDC 3.2.1 Release Announcement</a>
</h1>
November 27, 2024 -
Hang Ruan
<p><p>The Apache Flink Community is pleased to announce the first bug fix release of the Flink CDC 3.2 series.</p>
<p>The release contains fixes for several critical issues and improves compatibilities with Apache Flink. Below you will find a list of all bugfixes and improvements (excluding improvements to the build infrastructure and build stability). For a complete list of all changes see:
<a href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315522&version=12355099">JIRA</a>.</p>
<p>We highly recommend all users to upgrade to Flink CDC 3.2.1.</p>
<h2 id="release-notes">
Release Notes
<a class="anchor" href="#release-notes">#</a>
</h2>
<h3 id="sub-task">
Sub-task
<a class="anchor" href="#sub-task">#</a>
</h3>
<ul>
<li>[FLINK-36221] Add specification about CAST … AS … built-in functions</li>
</ul>
<h3 id="bug">
Bug
<a class="anchor" href="#bug">#</a>
</h3>
<ul>
<li>[FLINK-35980] Add transform test coverage in Integrated / E2e tests</li>
<li>[FLINK-35982] Transform metadata config doesn’t work if no projection block was provided</li>
<li>[FLINK-35985] SUBSTRING function not available in transform rules</li>
<li>[FLINK-36105] CDC pipeline job could not restore from state in Flink 1.20</li>
<li>[FLINK-36247] Potential transaction leak during MySQL snapshot phase</li>
<li>[FLINK-36326] Newly added table failed in mysql pipeline connector</li>
<li>[FLINK-36347] Using the offset obtained after a query transaction as a high watermark cannot ensure exactly-once semantics</li>
<li>[FLINK-36375] Missing default value in AddColumnEvent/RenameColumnEvent</li>
<li>[FLINK-36407] SchemaRegistry doesn’t shutdown its underlying ExecutorService upon closing</li>
<li>[FLINK-36408] MySQL pipeline connector could not work with FLOAT type with precision</li>
<li>[FLINK-36461] YAML job failed to schema evolve with unmatched transform tables</li>
<li>[FLINK-36474] YAML Table-merging route should accept more type widening cases</li>
<li>[FLINK-36509] Fix ‘Unsupported bucket mode: GLOBAL_DYNAMIC’ error in Paimon Pipeline Sink.</li>
<li>[FLINK-36517] Duplicate commit the same datafile in Paimon Sink</li>
<li>[FLINK-36560] Fix the issue of timestamp_ltz increasing by 8 hours in Paimon</li>
<li>[FLINK-36572] The local time zone is wrongly set in StarRocks pipeline sink</li>
<li>[FLINK-36596] YAML Pipeline fails to schema change with no projection fields specified</li>
<li>[FLINK-36649] Oracle When reading via OracleIncrementalSource, the connection is occasionally closed</li>
<li>[FLINK-36656] Flink CDC treats MySQL Sharding table with boolean type conversion error</li>
<li>[FLINK-36681] Wrong chunks splitting query in incremental snapshot reading section in mysql cdc doc</li>
</ul>
<h3 id="improvement">
Improvement
<a class="anchor" href="#improvement">#</a>
</h3>
<ul>
<li>[FLINK-35291] Improve the ROW data deserialization performance of DebeziumEventDeserializationScheme</li>
<li>[FLINK-35592] MysqlDebeziumTimeConverter miss timezone convert to timestamp</li>
<li>[FLINK-36052] add elasticsearch.md for elasticsearch pipeline connector</li>
<li>[FLINK-36093] PreTransform operator wrongly filters out columns when multiple transform rules were defined</li>
<li>[FLINK-36151] Add documentations for Schema Evolution related options</li>
<li>[FLINK-36211] Shade kafka related package in Kafka Pipeline connector</li>
<li>[FLINK-36214] Error log when building flink-cdc-pipeline-udf-examples from source code</li>
<li>[FLINK-36541] Occasional met commit conflict problem in PaimonSink</li>
<li>[FLINK-36565] Pipeline YAML should allow merging decimal with different precisions</li>
<li>[FLINK-36678] The Flink CDC Yarn deployment mode document description is incorrect</li>
<li>[FLINK-36750] Paimon connector would reuse sequence number when schema evolution happened</li>
</ul>
<h2 id="release-resources">
Release Resources
<a class="anchor" href="#release-resources">#</a>
</h2>
<p>The source artifacts and binaries are available on the <a href="/downloads/">Downloads page</a> of the Flink website.</p>
<p>For more details, check the <a href="https://nightlies.apache.org/flink/flink-cdc-docs-release-3.2/">updated documentation</a> and the release notes. We encourage you to download the release and share your feedback with the community through the Flink mailing lists or JIRA.</p>
<h2 id="list-of-contributors">
List of Contributors
<a class="anchor" href="#list-of-contributors">#</a>
</h2>
<p>yuxiqian, Xin Gong, Hang Ruan, wudi, qg-lin, Timi988, lvyanquan, ConradJam, Runkang He, Junbo wang, MOBIN, Leonard Xu, Sergei Morozov, liuzeshan</p>
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