SPARK-15778 add spark-2.0.0-preview release to options and other minor related updates

4 files changed, 128 insertions, 85 deletions

diff --git a/downloads.md b/downloads.md
index 37f610312..1685dfbf3 100644
--- a/downloads.md
+++ b/downloads.md
@@ -16,7 +16,7 @@ $(document).ready(function() {
 
 ## Download Apache Spark™
 
-Our latest version is Apache Spark 1.6.1, released on March 9, 2016
+Our latest stable version is Apache Spark 1.6.1, released on March 9, 2016
 <a href="{{site.url}}releases/spark-release-1-6-1.html">(release notes)</a>
 <a href="https://github.com/apache/spark/releases/tag/v1.6.1">(git tag)</a><br/>
 
@@ -36,6 +36,17 @@ Our latest version is Apache Spark 1.6.1, released on March 9, 2016
 _Note: Scala 2.11 users should download the Spark source package and build
 [with Scala 2.11 support](http://spark.apache.org/docs/latest/building-spark.html#building-for-scala-211)._
 
+### Latest Preview Release
+
+Preview releases, as the name suggests, are releases for previewing upcoming features.
+Unlike nightly packages, preview releases have been audited by the project's management committee
+to satisfy the legal requirements of Apache Software Foundation's release policy.
+Preview releases are not meant to be functional, i.e. they can and highly likely will contain
+critical bugs or documentation errors.
+
+The latest preview release is Spark 2.0.0-preview, published on May 24, 2016.
+You can select and download it above.
+
 ### Link with Spark
 Spark artifacts are [hosted in Maven Central](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.apache.spark%22). You can add a Maven dependency with the following coordinates:
 
@@ -54,14 +65,9 @@ If you are interested in working with the newest under-development code or contr
 
 Once you've downloaded Spark, you can find instructions for installing and building it on the <a href="{{site.url}}documentation.html">documentation page</a>.
 
-<h3 id="all-releases">Stable Releases</h3>
-<ul id="sparkReleaseNotes"></ul>
-
-### Latest Preview Release (Spark 2.0.0-preview)
-Preview releases, as the name suggests, are releases for previewing upcoming features. Unlike nightly packages, preview releases have been audited by the project's management committee to satisfy the legal requirements of Apache Software Foundation's release policy.Preview releases are not meant to be functional, i.e. they can and highly likely will contain critical bugs or documentation errors.
-
-The latest preview release is Spark 2.0.0-preview, published on May 24, 2016. You can <a href="https://dist.apache.org/repos/dist/release/spark/spark-2.0.0-preview/">download it here</a>.
+### Release Notes for Stable Releases
 
+<ul id="sparkReleaseNotes"></ul>
 
 ### Nightly Packages and Artifacts
 For developers, Spark maintains nightly builds and SNAPSHOT artifacts. More information is available on the [Spark developer Wiki](https://cwiki.apache.org/confluence/display/SPARK/Useful+Developer+Tools#UsefulDeveloperTools-NightlyBuilds).
diff --git a/js/downloads.js b/js/downloads.js
index 26901eefc..cce2c0bd9 100644
--- a/js/downloads.js
+++ b/js/downloads.js
@@ -3,8 +3,8 @@
 
 releases = {};
 
-function addRelease(version, releaseDate, packages, downloadable) {
-  releases[version] = {released: releaseDate, packages: packages, downloadable: downloadable};
+function addRelease(version, releaseDate, packages, downloadable, stable) {
+  releases[version] = {released: releaseDate, packages: packages, downloadable: downloadable, stable: stable};
 }
 
 var sources = {pretty: "Source Code [can build several Hadoop versions]", tag: "sources"};
@@ -13,8 +13,9 @@ var hadoop1 = {pretty: "Pre-built for Hadoop 1.X", tag: "hadoop1"};
 var cdh4 = {pretty: "Pre-built for CDH 4", tag: "cdh4"};
 var hadoop2 = {pretty: "Pre-built for Hadoop 2.2", tag: "hadoop2"};
 var hadoop2p3 = {pretty: "Pre-built for Hadoop 2.3", tag: "hadoop2.3"};
-var hadoop2p4 = {pretty: "Pre-built for Hadoop 2.4 and later", tag: "hadoop2.4"};
-var hadoop2p6 = {pretty: "Pre-built for Hadoop 2.6 and later", tag: "hadoop2.6"};
+var hadoop2p4 = {pretty: "Pre-built for Hadoop 2.4", tag: "hadoop2.4"};
+var hadoop2p6 = {pretty: "Pre-built for Hadoop 2.6", tag: "hadoop2.6"};
+var hadoop2p7 = {pretty: "Pre-built for Hadoop 2.7 and later", tag: "hadoop2.7"};
 var mapr3 = {pretty: "Pre-built for MapR 3.X", tag: "mapr3"};
 var mapr4 = {pretty: "Pre-built for MapR 4.X", tag: "mapr4"};
 
@@ -31,32 +32,35 @@ var packagesV4 = [hadoop2p4, hadoop2p3, mapr3, mapr4].concat(packagesV1);
 var packagesV5 = [hadoop2p6].concat(packagesV4);
 // 1.4.0+
 var packagesV6 = [hadoopFree, hadoop2p6, hadoop2p4, hadoop2p3].concat(packagesV1);
-
-addRelease("1.6.1", new Date("03/09/2016"), sources.concat(packagesV6), true);
-addRelease("1.6.0", new Date("01/04/2016"), sources.concat(packagesV6), true);
-addRelease("1.5.2", new Date("11/09/2015"), sources.concat(packagesV6), true);
-addRelease("1.5.1", new Date("10/02/2015"), sources.concat(packagesV6), true);
-addRelease("1.5.0", new Date("9/09/2015"), sources.concat(packagesV6), true);
-addRelease("1.4.1", new Date("7/15/2015"), sources.concat(packagesV6), true);
-addRelease("1.4.0", new Date("6/11/2015"), sources.concat(packagesV6), true);
-addRelease("1.3.1", new Date("4/17/2015"), sources.concat(packagesV5), true);
-addRelease("1.3.0", new Date("3/13/2015"), sources.concat(packagesV4), true);
-addRelease("1.2.2", new Date("4/17/2015"), sources.concat(packagesV4), true);
-addRelease("1.2.1", new Date("2/9/2015"), sources.concat(packagesV4), true);
-addRelease("1.2.0", new Date("12/18/2014"), sources.concat(packagesV4), true);
-addRelease("1.1.1", new Date("11/26/2014"), sources.concat(packagesV4), true);
-addRelease("1.1.0", new Date("9/11/2014"), sources.concat(packagesV4), true);
-addRelease("1.0.2", new Date("8/5/2014"), sources.concat(packagesV3), true);
-addRelease("1.0.1", new Date("7/11/2014"), sources.concat(packagesV3));
-addRelease("1.0.0", new Date("5/30/2014"), sources.concat(packagesV2));
-addRelease("0.9.2", new Date("7/23/2014"), sources.concat(packagesV2), true);
-addRelease("0.9.1", new Date("4/9/2014"), sources.concat(packagesV2));
-addRelease("0.9.0-incubating", new Date("2/2/2014"), sources.concat(packagesV2));
-addRelease("0.8.1-incubating", new Date("12/19/2013"), sources.concat(packagesV2), true);
-addRelease("0.8.0-incubating", new Date("9/25/2013"), sources.concat(packagesV1), true);
-addRelease("0.7.3", new Date("7/16/2013"), sources.concat(packagesV1), true);
-addRelease("0.7.2", new Date("2/6/2013"), sources.concat(packagesV1));
-addRelease("0.7.0", new Date("2/27/2013"), sources);
+// 2.0.0+
+var packagesV7 = [hadoopFree, hadoop2p7, hadoop2p6, hadoop2p4, hadoop2p3];
+
+addRelease("2.0.0-preview", new Date("05/24/2016"), sources.concat(packagesV7), true, false);
+addRelease("1.6.1", new Date("03/09/2016"), sources.concat(packagesV6), true, true);
+addRelease("1.6.0", new Date("01/04/2016"), sources.concat(packagesV6), true, true);
+addRelease("1.5.2", new Date("11/09/2015"), sources.concat(packagesV6), true, true);
+addRelease("1.5.1", new Date("10/02/2015"), sources.concat(packagesV6), true, true);
+addRelease("1.5.0", new Date("9/09/2015"), sources.concat(packagesV6), true, true);
+addRelease("1.4.1", new Date("7/15/2015"), sources.concat(packagesV6), true, true);
+addRelease("1.4.0", new Date("6/11/2015"), sources.concat(packagesV6), true, true);
+addRelease("1.3.1", new Date("4/17/2015"), sources.concat(packagesV5), true, true);
+addRelease("1.3.0", new Date("3/13/2015"), sources.concat(packagesV4), true, true);
+addRelease("1.2.2", new Date("4/17/2015"), sources.concat(packagesV4), true, true);
+addRelease("1.2.1", new Date("2/9/2015"), sources.concat(packagesV4), true, true);
+addRelease("1.2.0", new Date("12/18/2014"), sources.concat(packagesV4), true, true);
+addRelease("1.1.1", new Date("11/26/2014"), sources.concat(packagesV4), true, true);
+addRelease("1.1.0", new Date("9/11/2014"), sources.concat(packagesV4), true, true);
+addRelease("1.0.2", new Date("8/5/2014"), sources.concat(packagesV3), true, true);
+addRelease("1.0.1", new Date("7/11/2014"), sources.concat(packagesV3), false, true);
+addRelease("1.0.0", new Date("5/30/2014"), sources.concat(packagesV2), false, true);
+addRelease("0.9.2", new Date("7/23/2014"), sources.concat(packagesV2), true, false);
+addRelease("0.9.1", new Date("4/9/2014"), sources.concat(packagesV2), false, false);
+addRelease("0.9.0-incubating", new Date("2/2/2014"), sources.concat(packagesV2), false, false);
+addRelease("0.8.1-incubating", new Date("12/19/2013"), sources.concat(packagesV2), true, false);
+addRelease("0.8.0-incubating", new Date("9/25/2013"), sources.concat(packagesV1), true, false);
+addRelease("0.7.3", new Date("7/16/2013"), sources.concat(packagesV1), true, false);
+addRelease("0.7.2", new Date("2/6/2013"), sources.concat(packagesV1), false, false);
+addRelease("0.7.0", new Date("2/27/2013"), sources, false, false);
 
 function append(el, contents) {
   el.innerHTML = el.innerHTML + contents;
@@ -76,15 +80,25 @@ function initDownloads() {
   var versionSelect = document.getElementById("sparkVersionSelect");
 
   // Populate versions
+  var markedDefault = false;
   for (var version in releases) {
     var releaseDate = releases[version].released;
     var downloadable = releases[version].downloadable;
+    var stable = releases[version].stable;
 
     if (!downloadable) { continue; }
 
+    var selected = false;
+    if (!markedDefault && stable) {
+      selected = true;
+      markedDefault = true;
+    }
+
     // Don't display incubation status here
     var title = versionShort(version) + " (" + releaseDate.toDateString().slice(4) + ")";
-    append(versionSelect, "<option value=\"" + version + "\">" + title + "</option>");
+    append(versionSelect, 
+      "<option value=\"" + version + "\"" + (selected ? " selected=\"selected\"" : "") + ">" +
+      title + "</option>");
   }
 
   // Populate packages and (transitively) releases
@@ -94,12 +108,13 @@ function initDownloads() {
 function initReleaseNotes() {
   var releaseNotes = document.getElementById("sparkReleaseNotes");
   for (var version in releases) {
+    if (!releases[version].stable) { continue; }
     var releaseDate = releases[version].released;
     var verShort = versionShort(version);
     var contents = "<li><a href='releases/spark-release-$verUrl.html'>Spark $ver</a> ($date)</li>"
       .replace(/\$verUrl/, verShort.replace(/\./g, "-"))
       .replace(/\$ver/, verShort)
-      .replace(/\$date/, releaseDate.toDateString().slice(4))
+      .replace(/\$date/, releaseDate.toDateString().slice(4));
     append(releaseNotes, contents);
   }
 }
@@ -122,7 +137,7 @@ function onVersionSelect() {
   }
 
   var href = "http://www.apache.org/dist/spark/spark-" + version + "/";
-  var link = "<a href=\"" + href + "\">" + versionShort(version) + " signatures and checksums</a>"
+  var link = "<a href=\"" + href + "\">" + versionShort(version) + " signatures and checksums</a>";
   append(verifyLink, link);
 
   // Populate releases
@@ -142,8 +157,8 @@ function onPackageSelect() {
     var external = "External Download (MAY CONTAIN INCOMPATIBLE LICENSES)";
     append(downloadSelect, "<option value='external'>" + external + "</option>");
   } else {
-    append(downloadSelect, "<option value='apache'>Select Apache Mirror</option>")
-    append(downloadSelect, "<option value='direct'>Direct Download</option>")
+    append(downloadSelect, "<option value='apache'>Select Apache Mirror</option>");
+    append(downloadSelect, "<option value='direct'>Direct Download</option>");
   }
   updateDownloadLink();
 }
diff --git a/site/downloads.html b/site/downloads.html
index a53c5361b..a7b757f04 100644
--- a/site/downloads.html
+++ b/site/downloads.html
@@ -192,7 +192,7 @@ $(document).ready(function() {
 
 <h2 id="download-apache-sparktrade">Download Apache Spark&#8482;</h2>
 
-<p>Our latest version is Apache Spark 1.6.1, released on March 9, 2016
+<p>Our latest stable version is Apache Spark 1.6.1, released on March 9, 2016
 <a href="/releases/spark-release-1-6-1.html">(release notes)</a>
 <a href="https://github.com/apache/spark/releases/tag/v1.6.1">(git tag)</a><br /></p>
 
@@ -220,6 +220,17 @@ $(document).ready(function() {
 <p><em>Note: Scala 2.11 users should download the Spark source package and build
 <a href="http://spark.apache.org/docs/latest/building-spark.html#building-for-scala-211">with Scala 2.11 support</a>.</em></p>
 
+<h3 id="latest-preview-release">Latest Preview Release</h3>
+
+<p>Preview releases, as the name suggests, are releases for previewing upcoming features.
+Unlike nightly packages, preview releases have been audited by the project&#8217;s management committee
+to satisfy the legal requirements of Apache Software Foundation&#8217;s release policy.
+Preview releases are not meant to be functional, i.e. they can and highly likely will contain
+critical bugs or documentation errors.</p>
+
+<p>The latest preview release is Spark 2.0.0-preview, published on May 24, 2016.
+You can select and download it above.</p>
+
 <h3 id="link-with-spark">Link with Spark</h3>
 <p>Spark artifacts are <a href="http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.apache.spark%22">hosted in Maven Central</a>. You can add a Maven dependency with the following coordinates:</p>
 
@@ -240,13 +251,9 @@ git clone git://github.com/apache/spark.git -b branch-1.6
 
 <p>Once you&#8217;ve downloaded Spark, you can find instructions for installing and building it on the <a href="/documentation.html">documentation page</a>.</p>
 
-<h3 id="all-releases">Stable Releases</h3>
-<ul id="sparkReleaseNotes"></ul>
-
-<h3 id="latest-preview-release-spark-200-preview">Latest Preview Release (Spark 2.0.0-preview)</h3>
-<p>Preview releases, as the name suggests, are releases for previewing upcoming features. Unlike nightly packages, preview releases have been audited by the project&#8217;s management committee to satisfy the legal requirements of Apache Software Foundation&#8217;s release policy.Preview releases are not meant to be functional, i.e. they can and highly likely will contain critical bugs or documentation errors.</p>
+<h3 id="release-notes-for-stable-releases">Release Notes for Stable Releases</h3>
 
-<p>The latest preview release is Spark 2.0.0-preview, published on May 24, 2016. You can <a href="https://dist.apache.org/repos/dist/release/spark/spark-2.0.0-preview/">download it here</a>.</p>
+<ul id="sparkReleaseNotes"></ul>
 
 <h3 id="nightly-packages-and-artifacts">Nightly Packages and Artifacts</h3>
 <p>For developers, Spark maintains nightly builds and SNAPSHOT artifacts. More information is available on the <a href="https://cwiki.apache.org/confluence/display/SPARK/Useful+Developer+Tools#UsefulDeveloperTools-NightlyBuilds">Spark developer Wiki</a>.</p>
diff --git a/site/js/downloads.js b/site/js/downloads.js
index 26901eefc..cce2c0bd9 100644
--- a/site/js/downloads.js
+++ b/site/js/downloads.js
@@ -3,8 +3,8 @@
 
 releases = {};
 
-function addRelease(version, releaseDate, packages, downloadable) {
-  releases[version] = {released: releaseDate, packages: packages, downloadable: downloadable};
+function addRelease(version, releaseDate, packages, downloadable, stable) {
+  releases[version] = {released: releaseDate, packages: packages, downloadable: downloadable, stable: stable};
 }
 
 var sources = {pretty: "Source Code [can build several Hadoop versions]", tag: "sources"};
@@ -13,8 +13,9 @@ var hadoop1 = {pretty: "Pre-built for Hadoop 1.X", tag: "hadoop1"};
 var cdh4 = {pretty: "Pre-built for CDH 4", tag: "cdh4"};
 var hadoop2 = {pretty: "Pre-built for Hadoop 2.2", tag: "hadoop2"};
 var hadoop2p3 = {pretty: "Pre-built for Hadoop 2.3", tag: "hadoop2.3"};
-var hadoop2p4 = {pretty: "Pre-built for Hadoop 2.4 and later", tag: "hadoop2.4"};
-var hadoop2p6 = {pretty: "Pre-built for Hadoop 2.6 and later", tag: "hadoop2.6"};
+var hadoop2p4 = {pretty: "Pre-built for Hadoop 2.4", tag: "hadoop2.4"};
+var hadoop2p6 = {pretty: "Pre-built for Hadoop 2.6", tag: "hadoop2.6"};
+var hadoop2p7 = {pretty: "Pre-built for Hadoop 2.7 and later", tag: "hadoop2.7"};
 var mapr3 = {pretty: "Pre-built for MapR 3.X", tag: "mapr3"};
 var mapr4 = {pretty: "Pre-built for MapR 4.X", tag: "mapr4"};
 
@@ -31,32 +32,35 @@ var packagesV4 = [hadoop2p4, hadoop2p3, mapr3, mapr4].concat(packagesV1);
 var packagesV5 = [hadoop2p6].concat(packagesV4);
 // 1.4.0+
 var packagesV6 = [hadoopFree, hadoop2p6, hadoop2p4, hadoop2p3].concat(packagesV1);
-
-addRelease("1.6.1", new Date("03/09/2016"), sources.concat(packagesV6), true);
-addRelease("1.6.0", new Date("01/04/2016"), sources.concat(packagesV6), true);
-addRelease("1.5.2", new Date("11/09/2015"), sources.concat(packagesV6), true);
-addRelease("1.5.1", new Date("10/02/2015"), sources.concat(packagesV6), true);
-addRelease("1.5.0", new Date("9/09/2015"), sources.concat(packagesV6), true);
-addRelease("1.4.1", new Date("7/15/2015"), sources.concat(packagesV6), true);
-addRelease("1.4.0", new Date("6/11/2015"), sources.concat(packagesV6), true);
-addRelease("1.3.1", new Date("4/17/2015"), sources.concat(packagesV5), true);
-addRelease("1.3.0", new Date("3/13/2015"), sources.concat(packagesV4), true);
-addRelease("1.2.2", new Date("4/17/2015"), sources.concat(packagesV4), true);
-addRelease("1.2.1", new Date("2/9/2015"), sources.concat(packagesV4), true);
-addRelease("1.2.0", new Date("12/18/2014"), sources.concat(packagesV4), true);
-addRelease("1.1.1", new Date("11/26/2014"), sources.concat(packagesV4), true);
-addRelease("1.1.0", new Date("9/11/2014"), sources.concat(packagesV4), true);
-addRelease("1.0.2", new Date("8/5/2014"), sources.concat(packagesV3), true);
-addRelease("1.0.1", new Date("7/11/2014"), sources.concat(packagesV3));
-addRelease("1.0.0", new Date("5/30/2014"), sources.concat(packagesV2));
-addRelease("0.9.2", new Date("7/23/2014"), sources.concat(packagesV2), true);
-addRelease("0.9.1", new Date("4/9/2014"), sources.concat(packagesV2));
-addRelease("0.9.0-incubating", new Date("2/2/2014"), sources.concat(packagesV2));
-addRelease("0.8.1-incubating", new Date("12/19/2013"), sources.concat(packagesV2), true);
-addRelease("0.8.0-incubating", new Date("9/25/2013"), sources.concat(packagesV1), true);
-addRelease("0.7.3", new Date("7/16/2013"), sources.concat(packagesV1), true);
-addRelease("0.7.2", new Date("2/6/2013"), sources.concat(packagesV1));
-addRelease("0.7.0", new Date("2/27/2013"), sources);
+// 2.0.0+
+var packagesV7 = [hadoopFree, hadoop2p7, hadoop2p6, hadoop2p4, hadoop2p3];
+
+addRelease("2.0.0-preview", new Date("05/24/2016"), sources.concat(packagesV7), true, false);
+addRelease("1.6.1", new Date("03/09/2016"), sources.concat(packagesV6), true, true);
+addRelease("1.6.0", new Date("01/04/2016"), sources.concat(packagesV6), true, true);
+addRelease("1.5.2", new Date("11/09/2015"), sources.concat(packagesV6), true, true);
+addRelease("1.5.1", new Date("10/02/2015"), sources.concat(packagesV6), true, true);
+addRelease("1.5.0", new Date("9/09/2015"), sources.concat(packagesV6), true, true);
+addRelease("1.4.1", new Date("7/15/2015"), sources.concat(packagesV6), true, true);
+addRelease("1.4.0", new Date("6/11/2015"), sources.concat(packagesV6), true, true);
+addRelease("1.3.1", new Date("4/17/2015"), sources.concat(packagesV5), true, true);
+addRelease("1.3.0", new Date("3/13/2015"), sources.concat(packagesV4), true, true);
+addRelease("1.2.2", new Date("4/17/2015"), sources.concat(packagesV4), true, true);
+addRelease("1.2.1", new Date("2/9/2015"), sources.concat(packagesV4), true, true);
+addRelease("1.2.0", new Date("12/18/2014"), sources.concat(packagesV4), true, true);
+addRelease("1.1.1", new Date("11/26/2014"), sources.concat(packagesV4), true, true);
+addRelease("1.1.0", new Date("9/11/2014"), sources.concat(packagesV4), true, true);
+addRelease("1.0.2", new Date("8/5/2014"), sources.concat(packagesV3), true, true);
+addRelease("1.0.1", new Date("7/11/2014"), sources.concat(packagesV3), false, true);
+addRelease("1.0.0", new Date("5/30/2014"), sources.concat(packagesV2), false, true);
+addRelease("0.9.2", new Date("7/23/2014"), sources.concat(packagesV2), true, false);
+addRelease("0.9.1", new Date("4/9/2014"), sources.concat(packagesV2), false, false);
+addRelease("0.9.0-incubating", new Date("2/2/2014"), sources.concat(packagesV2), false, false);
+addRelease("0.8.1-incubating", new Date("12/19/2013"), sources.concat(packagesV2), true, false);
+addRelease("0.8.0-incubating", new Date("9/25/2013"), sources.concat(packagesV1), true, false);
+addRelease("0.7.3", new Date("7/16/2013"), sources.concat(packagesV1), true, false);
+addRelease("0.7.2", new Date("2/6/2013"), sources.concat(packagesV1), false, false);
+addRelease("0.7.0", new Date("2/27/2013"), sources, false, false);
 
 function append(el, contents) {
   el.innerHTML = el.innerHTML + contents;
@@ -76,15 +80,25 @@ function initDownloads() {
   var versionSelect = document.getElementById("sparkVersionSelect");
 
   // Populate versions
+  var markedDefault = false;
   for (var version in releases) {
     var releaseDate = releases[version].released;
     var downloadable = releases[version].downloadable;
+    var stable = releases[version].stable;
 
     if (!downloadable) { continue; }
 
+    var selected = false;
+    if (!markedDefault && stable) {
+      selected = true;
+      markedDefault = true;
+    }
+
     // Don't display incubation status here
     var title = versionShort(version) + " (" + releaseDate.toDateString().slice(4) + ")";
-    append(versionSelect, "<option value=\"" + version + "\">" + title + "</option>");
+    append(versionSelect, 
+      "<option value=\"" + version + "\"" + (selected ? " selected=\"selected\"" : "") + ">" +
+      title + "</option>");
   }
 
   // Populate packages and (transitively) releases
@@ -94,12 +108,13 @@ function initDownloads() {
 function initReleaseNotes() {
   var releaseNotes = document.getElementById("sparkReleaseNotes");
   for (var version in releases) {
+    if (!releases[version].stable) { continue; }
     var releaseDate = releases[version].released;
     var verShort = versionShort(version);
     var contents = "<li><a href='releases/spark-release-$verUrl.html'>Spark $ver</a> ($date)</li>"
       .replace(/\$verUrl/, verShort.replace(/\./g, "-"))
       .replace(/\$ver/, verShort)
-      .replace(/\$date/, releaseDate.toDateString().slice(4))
+      .replace(/\$date/, releaseDate.toDateString().slice(4));
     append(releaseNotes, contents);
   }
 }
@@ -122,7 +137,7 @@ function onVersionSelect() {
   }
 
   var href = "http://www.apache.org/dist/spark/spark-" + version + "/";
-  var link = "<a href=\"" + href + "\">" + versionShort(version) + " signatures and checksums</a>"
+  var link = "<a href=\"" + href + "\">" + versionShort(version) + " signatures and checksums</a>";
   append(verifyLink, link);
 
   // Populate releases
@@ -142,8 +157,8 @@ function onPackageSelect() {
     var external = "External Download (MAY CONTAIN INCOMPATIBLE LICENSES)";
     append(downloadSelect, "<option value='external'>" + external + "</option>");
   } else {
-    append(downloadSelect, "<option value='apache'>Select Apache Mirror</option>")
-    append(downloadSelect, "<option value='direct'>Direct Download</option>")
+    append(downloadSelect, "<option value='apache'>Select Apache Mirror</option>");
+    append(downloadSelect, "<option value='direct'>Direct Download</option>");
   }
   updateDownloadLink();
 }