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<meta property="og:description" content="The Apache Flink Community is pleased to announce the third bug fix release of the Flink 1.16 series.
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We highly recommend all users upgrade to Flink 1.16.3." />
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<h1>
<a href="/2023/11/29/apache-flink-1.16.3-release-announcement/">Apache Flink 1.16.3 Release Announcement</a>
</h1>
November 29, 2023 -
Rui Fan
<a href="https://twitter.com/1996fanrui">(@1996fanrui)</a>
<p><p>The Apache Flink Community is pleased to announce the third bug fix release of the Flink 1.16 series.</p>
<p>This release includes 52 bug fixes, vulnerability fixes, and minor improvements for Flink 1.16.
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&amp;version=12353259">JIRA</a>.</p>
<p>We highly recommend all users upgrade to Flink 1.16.3.</p>
<h1 id="release-artifacts">
Release Artifacts
<a class="anchor" href="#release-artifacts">#</a>
</h1>
<h2 id="maven-dependencies">
Maven Dependencies
<a class="anchor" href="#maven-dependencies">#</a>
</h2>
<div class="highlight"><pre tabindex="0" class="chroma"><code class="language-xml" data-lang="xml"><span class="line"><span class="cl"><span class="nt">&lt;dependency&gt;</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&lt;groupId&gt;</span>org.apache.flink<span class="nt">&lt;/groupId&gt;</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&lt;artifactId&gt;</span>flink-java<span class="nt">&lt;/artifactId&gt;</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&lt;version&gt;</span>1.16.3<span class="nt">&lt;/version&gt;</span>
</span></span><span class="line"><span class="cl"><span class="nt">&lt;/dependency&gt;</span>
</span></span><span class="line"><span class="cl"><span class="nt">&lt;dependency&gt;</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&lt;groupId&gt;</span>org.apache.flink<span class="nt">&lt;/groupId&gt;</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&lt;artifactId&gt;</span>flink-streaming-java<span class="nt">&lt;/artifactId&gt;</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&lt;version&gt;</span>1.16.3<span class="nt">&lt;/version&gt;</span>
</span></span><span class="line"><span class="cl"><span class="nt">&lt;/dependency&gt;</span>
</span></span><span class="line"><span class="cl"><span class="nt">&lt;dependency&gt;</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&lt;groupId&gt;</span>org.apache.flink<span class="nt">&lt;/groupId&gt;</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&lt;artifactId&gt;</span>flink-clients<span class="nt">&lt;/artifactId&gt;</span>
</span></span><span class="line"><span class="cl"> <span class="nt">&lt;version&gt;</span>1.16.3<span class="nt">&lt;/version&gt;</span>
</span></span><span class="line"><span class="cl"><span class="nt">&lt;/dependency&gt;</span>
</span></span></code></pre></div><h2 id="binaries">
Binaries
<a class="anchor" href="#binaries">#</a>
</h2>
<p>You can find the binaries on the updated <a href="/downloads/">Downloads page</a>.</p>
<h2 id="docker-images">
Docker Images
<a class="anchor" href="#docker-images">#</a>
</h2>
<ul>
<li><a href="https://hub.docker.com/_/flink/tags?page=1&amp;name=1.16.3">library/flink</a> (official images)</li>
<li><a href="https://hub.docker.com/r/apache/flink/tags?page=1&amp;name=1.16.3">apache/flink</a> (ASF repository)</li>
</ul>
<h2 id="pypi">
PyPi
<a class="anchor" href="#pypi">#</a>
</h2>
<ul>
<li><a href="https://pypi.org/project/apache-flink/1.16.3/">apache-flink==1.16.3</a></li>
</ul>
<h1 id="release-notes">
Release Notes
<a class="anchor" href="#release-notes">#</a>
</h1>
<pre><code> Release Notes - Flink - Version 1.16.3
</code></pre>
<h2> Bug
</h2>
<ul>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32316'>FLINK-32316</a>] - Duplicated announceCombinedWatermark task maybe scheduled if jobmanager failover
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32362'>FLINK-32362</a>] - SourceAlignment announceCombinedWatermark period task maybe lost
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32411'>FLINK-32411</a>] - SourceCoordinator thread leaks when job recovers from checkpoint
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32414'>FLINK-32414</a>] - Watermark alignment will cause flink jobs to hang forever when any source subtask has no SourceSplit
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32496'>FLINK-32496</a>] - Sources with idleness and alignment always wait for alignment when part of multiple sources is idle
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-27415'>FLINK-27415</a>] - Read empty csv file throws exception in FileSystem table connector
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-28185'>FLINK-28185</a>] - &quot;Invalid negative offset&quot; when using OffsetsInitializer.timestamp(.)
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-29913'>FLINK-29913</a>] - Shared state would be discarded by mistake when maxConcurrentCheckpoint&gt;1
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-30559'>FLINK-30559</a>] - May get wrong result for `if` expression if it&#39;s string data type
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-30596'>FLINK-30596</a>] - Multiple POST /jars/:jarid/run requests with the same jobId, runs duplicate jobs
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-30751'>FLINK-30751</a>] - Remove references to disableDataSync in RocksDB documentation
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-30966'>FLINK-30966</a>] - Flink SQL IF FUNCTION logic error
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-31139'>FLINK-31139</a>] - not upload empty state changelog file
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-31967'>FLINK-31967</a>] - SQL with LAG function NullPointerException
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32023'>FLINK-32023</a>] - execution.buffer-timeout cannot be set to -1 ms
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32136'>FLINK-32136</a>] - Pyflink gateway server launch fails when purelib != platlib
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32172'>FLINK-32172</a>] - KafkaExample can not run with args
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32199'>FLINK-32199</a>] - MetricStore does not remove metrics of nonexistent parallelism in TaskMetricStore when scale down job parallelism
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32217'>FLINK-32217</a>] - Retain metric store can cause NPE
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32254'>FLINK-32254</a>] - FineGrainedSlotManager may not allocate enough taskmanagers if maxSlotNum is configured
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32296'>FLINK-32296</a>] - Flink SQL handle array of row incorrectly
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32548'>FLINK-32548</a>] - Make watermark alignment ready for production use
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32583'>FLINK-32583</a>] - RestClient can deadlock if request made after Netty event executor terminated
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32592'>FLINK-32592</a>] - (Stream)ExEnv#initializeContextEnvironment isn&#39;t thread-safe
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32655'>FLINK-32655</a>] - RecreateOnResetOperatorCoordinator did not forward notifyCheckpointAborted to the real OperatorCoordinator
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32680'>FLINK-32680</a>] - Job vertex names get messed up once there is a source vertex chained with a MultipleInput vertex in job graph
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32760'>FLINK-32760</a>] - Version Conflict in flink-sql-connector-hive for shaded.parquet prefix packages
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32888'>FLINK-32888</a>] - File upload runs into EndOfDataDecoderException
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32909'>FLINK-32909</a>] - The jobmanager.sh pass arguments failed
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-33010'>FLINK-33010</a>] - NPE when using GREATEST() in Flink SQL
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-33149'>FLINK-33149</a>] - Bump snappy-java to 1.1.10.4
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-33291'>FLINK-33291</a>] - The release profile of Flink does include enforcing the Java version only in a &quot;soft&quot; way
</li>
</ul>
<h2> Improvement
</h2>
<ul>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-29542'>FLINK-29542</a>] - Unload.md wrongly writes UNLOAD operation as LOAD operation
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32314'>FLINK-32314</a>] - Ignore class-loading errors after RPC system shutdown
</li>
<li>[<a href='https://issues.apache.org/jira/browse/FLINK-32371'>FLINK-32371</a>] - Bump snappy-java to 1.1.10.1
</li>
</ul>
</p>
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