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| <h2>Spark Release 3.3.3</h2> |
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| <p>Spark 3.3.3 is a maintenance release containing stability fixes. This release is based on the branch-3.3 maintenance branch of Spark. We strongly recommend all 3.3 users to upgrade to this stable release.</p> |
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| <h3 id="notable-changes">Notable changes</h3> |
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| <ul> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-37829">[SPARK-37829]</a>: An outer-join using joinWith on DataFrames returns Rows with null fields instead of null values</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-39399">[SPARK-39399]</a>: proxy-user not working for Spark on k8s in cluster deploy mode</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-39696">[SPARK-39696]</a>: Uncaught exception in thread executor-heartbeater java.util.ConcurrentModificationException: mutation occurred during iteration</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-41741">[SPARK-41741]</a>: ParquetFilters StringStartsWith push down matching string do not use UTF-8</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-41952">[SPARK-41952]</a>: Fix Parquet zstd off-heap memory leak as a workaround for PARQUET-2160</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-42286">[SPARK-42286]</a>: Fix internal error for valid CASE WHEN expression with CAST when inserting into a table</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-42473">[SPARK-42473]</a>: An explicit cast will be needed when INSERT OVERWRITE SELECT UNION ALL</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-42937">[SPARK-42937]</a>: Join with subquery in condition can fail with wholestage codegen and adaptive execution disabled</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-43050">[SPARK-43050]</a>: Fix construct aggregate expressions by replacing grouping functions</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-43113">[SPARK-43113]</a>: Codegen error when full outer join’s bound condition has multiple references to the same stream-side column</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-43240">[SPARK-43240]</a>: df.describe() method may- return wrong result if the last RDD is RDD[UnsafeRow]</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-43541">[SPARK-43541]</a>: Incorrect column resolution on FULL OUTER JOIN with USING</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-43718">[SPARK-43718]</a>: References to a specific side’s key in a USING join can have wrong nullability</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-44040">[SPARK-44040]</a>: Fix compute stats when AggregateExec node above QueryStageExec</li> |
| <li><a href="https://issues.apache.org/jira/browse/SPARK-44251">[SPARK-44251]</a>: Potential for incorrect results or NPE when full outer USING join has null key value</li> |
| </ul> |
| |
| <p>You can consult JIRA for the <a href="https://s.apache.org/spark-3.3.3">detailed changes</a>.</p> |
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| <p>We would like to acknowledge all community members for contributing patches to this release.</p> |
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| <li><a href="/news/spark-3-4-3-released.html">Spark 3.4.3 released</a> |
| <span class="small">(Apr 18, 2024)</span></li> |
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| <li><a href="/news/spark-3-5-1-released.html">Spark 3.5.1 released</a> |
| <span class="small">(Feb 23, 2024)</span></li> |
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| <li><a href="/news/spark-3-3-4-released.html">Spark 3.3.4 released</a> |
| <span class="small">(Dec 16, 2023)</span></li> |
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| <li><a href="/news/spark-3-4-2-released.html">Spark 3.4.2 released</a> |
| <span class="small">(Nov 30, 2023)</span></li> |
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