Add release docs for Apache Spark 4.1.1

Author: HyukjinKwon

documentation.md

@@ -13,6 +13,7 @@ navigation:
 
 <ul>
   <li><a href="{{site.baseurl}}/docs/">Spark </a></li>
+  <li><a href="{{site.baseurl}}/docs/4.1.1/">Spark 4.1.1</a></li>
   <li><a href="{{site.baseurl}}/docs/4.1.0/">Spark 4.1.0</a></li>
   <li><a href="{{site.baseurl}}/docs/4.0.1/">Spark 4.0.1</a></li>
   <li><a href="{{site.baseurl}}/docs/4.0.0/">Spark 4.0.0</a></li>

js/downloads.js

@@ -23,7 +23,7 @@ var packagesV14 = [hadoop3p, hadoop3pscala213, hadoopFree, sources];
 // 4.0.0+
 var packagesV15 = [hadoop34p, hadoop34pSparkConnect, hadoopFree, sources];
 
-addRelease("4.1.0", new Date("12/16/2025"), packagesV15, true);
+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);
 

news/_posts/2026-01-09-spark-4-1-1-released.md

@@ -0,0 +1,14 @@
+---
+layout: post
+title: Spark 4.1.1 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-4.1.1.html" title="Spark Release 4.1.1">Apache Spark 4.1.1</a>! Visit the <a href="{{site.baseurl}}/releases/spark-release-4.1.1.html" title="Spark Release 4.1.1">release notes</a> to read about the new features, or <a href="{{site.baseurl}}/downloads.html">download</a> the release today.

releases/_posts/2026-01-09-spark-release-4.1.1.md

@@ -0,0 +1,18 @@
+---
+layout: post
+title: Spark Release 4.1.1
+categories: []
+tags: []
+status: publish
+type: post
+published: true
+meta:
+  _edit_last: '4'
+  _wpas_done_all: '1'
+---
+
+Apache Spark 4.1.1 is a maintenance release containing security and correctness fixes. This release is based on the branch-4.1 maintenance branch of Spark. We strongly recommend all 4.1 users to upgrade to this stable release.
+
+You can find the list of resolved issues and detailed changes in the [JIRA release notes](https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315420&version=12356469).
+
+We would like to acknowledge all community members for contributing patches to this release.

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-4-1-1-released.html">Spark 4.1.1 released</a>
+            <span class="small">(Jan 09, 2026)</span></li>
+          
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
@@ -187,9 +190,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-preview3-released.html">Preview release of Spark 4.1.0</a>
             <span class="small">(Oct 29, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview2-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Sep 28, 2025)</span></li>
-          
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

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-4-1-1-released.html">Spark 4.1.1 released</a>
+            <span class="small">(Jan 09, 2026)</span></li>
+          
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
@@ -738,9 +741,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-preview3-released.html">Preview release of Spark 4.1.0</a>
             <span class="small">(Oct 29, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview2-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Sep 28, 2025)</span></li>
-          
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

site/community.html

@@ -334,6 +334,9 @@ <h3>Powered by</h3>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-4-1-1-released.html">Spark 4.1.1 released</a>
+            <span class="small">(Jan 09, 2026)</span></li>
+          
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
@@ -343,9 +346,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-preview3-released.html">Preview release of Spark 4.1.0</a>
             <span class="small">(Oct 29, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview2-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Sep 28, 2025)</span></li>
-          
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

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-4-1-1-released.html">Spark 4.1.1 released</a>
+            <span class="small">(Jan 09, 2026)</span></li>
+          
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
@@ -730,9 +733,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-preview3-released.html">Preview release of Spark 4.1.0</a>
             <span class="small">(Oct 29, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview2-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Sep 28, 2025)</span></li>
-          
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

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-4-1-1-released.html">Spark 4.1.1 released</a>
+            <span class="small">(Jan 09, 2026)</span></li>
+          
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
@@ -774,9 +777,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-preview3-released.html">Preview release of Spark 4.1.0</a>
             <span class="small">(Oct 29, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview2-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Sep 28, 2025)</span></li>
-          
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>

site/documentation.html

@@ -158,6 +158,7 @@ <h2><span class="text-capitalize">Apache Spark<span class="tm">&trade;</span></s
 
 <ul>
   <li><a href="/docs/">Spark </a></li>
+  <li><a href="/docs/4.1.1/">Spark 4.1.1</a></li>
   <li><a href="/docs/4.1.0/">Spark 4.1.0</a></li>
   <li><a href="/docs/4.0.1/">Spark 4.0.1</a></li>
   <li><a href="/docs/4.0.0/">Spark 4.0.0</a></li>
@@ -393,6 +394,9 @@ <h3>Research Papers</h3>
         <h5>Latest News</h5>
         <ul class="list-unstyled">
 
+          <li><a href="/news/spark-4-1-1-released.html">Spark 4.1.1 released</a>
+            <span class="small">(Jan 09, 2026)</span></li>
+          
           <li><a href="/news/spark-4-1-0-released.html">Spark 4.1.0 released</a>
             <span class="small">(Dec 16, 2025)</span></li>
 
@@ -402,9 +406,6 @@ <h5>Latest News</h5>
           <li><a href="/news/spark-4-1-0-preview3-released.html">Preview release of Spark 4.1.0</a>
             <span class="small">(Oct 29, 2025)</span></li>
 
-          <li><a href="/news/spark-4-1-0-preview2-released.html">Preview release of Spark 4.1.0</a>
-            <span class="small">(Sep 28, 2025)</span></li>
-          
         </ul>
         <p class="small" style="text-align: right;"><a href="/news/index.html">Archive</a></p>
       </div>