apache · dongjoon-hyun · Jan 16, 2026
diff --git a/js/downloads.js b/js/downloads.js
@@ -25,7 +25,7 @@ var packagesV15 = [hadoop34p, hadoop34pSparkConnect, hadoopFree, sources];
 
 addRelease("4.1.1", new Date("01/09/2026"), packagesV15, true);
 addRelease("4.0.1", new Date("09/06/2025"), packagesV15, true);
-addRelease("3.5.7", new Date("09/24/2025"), packagesV14, true);
+addRelease("3.5.8", new Date("01/15/2026"), packagesV14, true);
 
 function append(el, contents) {
   el.innerHTML += contents;

diff --git a/news/_posts/2026-01-15-spark-3-5-8-released.md b/news/_posts/2026-01-15-spark-3-5-8-released.md
@@ -0,0 +1,15 @@
+---
+layout: post
+title: Spark 3.5.8 released
+categories:
+- News
+tags: []
+status: publish
+type: post
+published: true
+meta:
+  _edit_last: '4'
+  _wpas_done_all: '1'
+---
+We are happy to announce the availability of <a href="{{site.baseurl}}/releases/spark-release-3-5-8.html" title="Spark Release 3.5.8">Spark 3.5.8</a>! Visit the <a href="{{site.baseurl}}/releases/spark-release-3-5-8.html" title="Spark Release 3.5.8">release notes</a> to read about the new features, or <a href="{{site.baseurl}}/downloads.html">download</a> the release today.
+
diff --git a/releases/_posts/2026-01-15-spark-release-3-5-8.md b/releases/_posts/2026-01-15-spark-release-3-5-8.md
@@ -0,0 +1,58 @@
+---
+layout: post
+title: Spark Release 3.5.8
+categories: []
+tags: []
+status: publish
+type: post
+published: true
+meta:
+  _edit_last: '4'
+  _wpas_done_all: '1'
+---
+
+Spark 3.5.8 is the eighth maintenance release containing security and correctness fixes. This release is based on the branch-3.5 maintenance branch of Spark. We strongly recommend all 3.5 users to upgrade to this stable release.
+
+### Notable changes
+
+- [[SPARK-46485]](https://issues.apache.org/jira/browse/SPARK-46485): V1Write should not add Sort when not needed
+- [[SPARK-49872]](https://issues.apache.org/jira/browse/SPARK-49872): Remove Jackson JSON string length limit in KVStoreScalaSerializer
+- [[SPARK-51831]](https://issues.apache.org/jira/browse/SPARK-51831): Column pruning with existsJoin for Datasource V2
+- [[SPARK-53149]](https://issues.apache.org/jira/browse/SPARK-53149): Fix testing whether BeeLine process run in background
+- [[SPARK-53337]](https://issues.apache.org/jira/browse/SPARK-53337): XSS: Ensure the application name in historypage get escaped
+- [[SPARK-53598]](https://issues.apache.org/jira/browse/SPARK-53598): Check the existence of numParts before reading large table property
+- [[SPARK-53673]](https://issues.apache.org/jira/browse/SPARK-53673): Fix a flaky test failure in `SparkSessionE2ESuite - interrupt tag` caused by the usage of `ForkJoinPool`
+- [[SPARK-53738]](https://issues.apache.org/jira/browse/SPARK-53738): Fix planned write when query output contains foldable orderings
+- [[SPARK-53836]](https://issues.apache.org/jira/browse/SPARK-53836): Update script `free_disk_space_container`
+- [[SPARK-53948]](https://issues.apache.org/jira/browse/SPARK-53948): Fix deadlock in Observation
+- [[SPARK-53955]](https://issues.apache.org/jira/browse/SPARK-53955): Prefer to detect Java Home from env JAVA_HOME on finding jmap for JDK 8
+- [[SPARK-53961]](https://issues.apache.org/jira/browse/SPARK-53961): Fix `FileStreamSinkSuite` flakiness by using `walkFileTree` instead of `walk`
+- [[SPARK-54015]](https://issues.apache.org/jira/browse/SPARK-54015): Relax Py4J requirement to py4j>=0.10.9.7,<0.10.9.10
+- [[SPARK-54034]](https://issues.apache.org/jira/browse/SPARK-54034): Fix `Utils.isBindCollision` to detect port conflict `NativeIoException` correctly
+- [[SPARK-54241]](https://issues.apache.org/jira/browse/SPARK-54241): Enable `NOLINT_ON_COMPILE` for all PySpark GitHub Action jobs
+- [[SPARK-54242]](https://issues.apache.org/jira/browse/SPARK-54242): Skip `Checkstyle` if `NOLINT_ON_COMPILE` is true
+- [[SPARK-54299]](https://issues.apache.org/jira/browse/SPARK-54299): Fix the wrong example query in `WindowGroupLimit`
+- [[SPARK-54336]](https://issues.apache.org/jira/browse/SPARK-54336): Fix `BloomFilterMightContain` input type check with `ScalarSubqueryReference`
+- [[SPARK-54366]](https://issues.apache.org/jira/browse/SPARK-54366): Add `free_disk_space` step to K8s integration test GitHub Action job
+- [[SPARK-54426]](https://issues.apache.org/jira/browse/SPARK-54426): Fix `release-build.sh` to detect `REPO_ID` correctly
+- [[SPARK-54505]](https://issues.apache.org/jira/browse/SPARK-54505): Correct the arguments order of createMetrics call in makeNegative
+- [[SPARK-54600]](https://issues.apache.org/jira/browse/SPARK-54600): Don't use pickle to save/load models in pyspark.ml.connect
+- [[SPARK-54620]](https://issues.apache.org/jira/browse/SPARK-54620): Add safety check in ObservationManager to avoid Observation blocking
+- [[SPARK-54624]](https://issues.apache.org/jira/browse/SPARK-54624): Ensure user name in historypage get escaped
+- [[SPARK-54625]](https://issues.apache.org/jira/browse/SPARK-54625): UTF8String#reverse should check offset and length on copying
+- [[SPARK-54728]](https://issues.apache.org/jira/browse/SPARK-54728): Remove a wrong note in `dataframe.isEmpty`
+- [[SPARK-54750]](https://issues.apache.org/jira/browse/SPARK-54750): Fix ROUND returning NULL for Decimal values with low runtime precision
+- [[SPARK-54982]](https://issues.apache.org/jira/browse/SPARK-54982): Use ASF_NEXUS_TOKEN to release and drop staging repository when finalizing the RC
+
+
+### Dependency changes
+
+While being a maintenance release we did still upgrade some dependencies in this release they are:
+- [[SPARK-53953]](https://issues.apache.org/jira/browse/SPARK-53953): Bump Avro 1.11.5
+- [[SPARK-54649]](https://issues.apache.org/jira/browse/SPARK-54649): Upgrade Jersey to 2.47
+- [[SPARK-54900]](https://issues.apache.org/jira/browse/SPARK-54900): Upgrade `ORC` to 1.9.8
+
+You can consult JIRA for the [detailed changes](https://s.apache.org/spark-3.5.8).
+
+We would like to acknowledge all community members for contributing patches to this release.
+
diff --git a/site/404.html b/site/404.html
@@ -178,6 +178,9 @@ <h2 id="oops">Oops!</h2>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -187,9 +190,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

diff --git a/site/committers.html b/site/committers.html
@@ -729,6 +729,9 @@ <h3>Policy on backporting bug fixes</h3>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -738,9 +741,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
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diff --git a/site/community.html b/site/community.html
@@ -334,6 +334,9 @@ <h3>Powered by</h3>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -343,9 +346,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
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diff --git a/site/contributing.html b/site/contributing.html
@@ -721,6 +721,9 @@ <h2>Code of conduct</h2>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -730,9 +733,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
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diff --git a/site/developer-tools.html b/site/developer-tools.html
@@ -765,6 +765,9 @@ <h2>Generative tooling usage</h2>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -774,9 +777,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
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diff --git a/site/documentation.html b/site/documentation.html
@@ -395,6 +395,9 @@ <h3>Research Papers</h3>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -404,9 +407,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
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diff --git a/site/downloads.html b/site/downloads.html
@@ -218,6 +218,9 @@ <h3 id="archived-releases">Archived releases</h3>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -227,9 +230,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

diff --git a/site/error-message-guidelines.html b/site/error-message-guidelines.html
@@ -555,6 +555,9 @@ <h4 id="wording-guide">Wording guide</h4>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -564,9 +567,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

diff --git a/site/examples.html b/site/examples.html
@@ -503,6 +503,9 @@ <h2>Additional examples</h2>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -512,9 +515,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

diff --git a/site/faq.html b/site/faq.html
@@ -225,6 +225,9 @@ <h2><span class="text-capitalize">Apache Spark<span class="tm">&trade;</span></s
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -234,9 +237,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

diff --git a/site/graphx/index.html b/site/graphx/index.html
@@ -270,6 +270,9 @@ <h3>Getting started</h3>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -279,9 +282,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

diff --git a/site/history.html b/site/history.html
@@ -179,6 +179,9 @@ <h2><span class="text-capitalize">Apache Spark<span class="tm">&trade;</span></s
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -188,9 +191,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

diff --git a/site/improvement-proposals.html b/site/improvement-proposals.html
@@ -251,6 +251,9 @@ <h4>Implementing an SPIP</h4>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -260,9 +263,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

diff --git a/site/js/downloads.js b/site/js/downloads.js
@@ -25,7 +25,7 @@ var packagesV15 = [hadoop34p, hadoop34pSparkConnect, hadoopFree, sources];
 
 addRelease("4.1.1", new Date("01/09/2026"), packagesV15, true);
 addRelease("4.0.1", new Date("09/06/2025"), packagesV15, true);
-addRelease("3.5.7", new Date("09/24/2025"), packagesV14, true);
+addRelease("3.5.8", new Date("01/15/2026"), packagesV14, true);
 
 function append(el, contents) {
   el.innerHTML += contents;

diff --git a/site/mailing-lists.html b/site/mailing-lists.html
@@ -163,6 +163,9 @@
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -172,9 +175,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

diff --git a/site/mllib/index.html b/site/mllib/index.html
@@ -316,6 +316,9 @@ <h3>Getting started</h3>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-3-5-8-released.html">Spark 3.5.8 released</a>
+            <span class="small">(Jan 15, 2026)</span></li>
+
           <li><a href="/news/spark-4-2-0-preview1-released.html">Preview release of Spark 4.2.0</a>
             <span class="small">(Jan 11, 2026)</span></li>
 
@@ -325,9 +328,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview4-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Nov 19, 2025)</span></li>
-
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
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