diff --git a/plugins/org.eclipse.justj.codegen/src/org/eclipse/justj/codegen/model/util/VersionUpdater.java b/plugins/org.eclipse.justj.codegen/src/org/eclipse/justj/codegen/model/util/VersionUpdater.java
new file mode 100644
index 0000000..59d5e2d
--- /dev/null
+++ b/plugins/org.eclipse.justj.codegen/src/org/eclipse/justj/codegen/model/util/VersionUpdater.java
@@ -0,0 +1,126 @@
+/**
+ * Copyright (c) 2022 Eclipse contributors and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.eclipse.justj.codegen.model.util;
+
+
+import java.io.IOException;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.eclipse.emf.common.util.URI;
+
+
+public class VersionUpdater
+{
+  private static final Set<String> IGNORED_FOLDERS = Set.of("cache", ".git", "local-cache", "target", "jre-gen", "bin");
+
+  private static final Set<String> IGNORED_FILE_EXTENSIONS = Set.of("svg", "gif", "png", "icns", "ico", "log");
+
+  private static final Pattern RELEASE_TRAIN_PATTERN = Pattern.compile("(https://download.eclipse.org/releases/)20[0-9][0-9]-[01][0-9]");
+
+  private static final Pattern ECLIPSE_UPDATES_PATTERN = Pattern.compile("(<url>https://download.eclipse.org/eclipse/updates/)[1-9]+\\.[0-9]+(-I-builds</url>)");
+
+  private static final Pattern JARSIGNER_VERSION_PATTERN = Pattern.compile("(<jarsigner-version>)[^<]+(</jarsigner-version>)");
+
+  private static final Pattern TYCHO_VERSION_PATTERN = Pattern.compile("(<tycho-version>)[^<]+(</tycho-version>)");
+
+  private static final Pattern JRE_VERSION_PATTERN = Pattern.compile("[1-9][0-9]+(\\.0\\.0)(-SNAPSHOT|.qualifier)");
+
+  private static final Pattern JRE_VERSION_RANGE_PATTERN = Pattern.compile("(Require-Bundle: org.eclipse.justj.openjdk.hotspot.jre.full;bundle-version=\"\\[)[^\"]+(\\)\")");
+
+  private static final Pattern JRE_URL_PATTERN = Pattern.compile("(https://download.eclipse.org/justj/jres/)[1-9][0-9]+(/updates/release/latest)");
+
+  private static final Pattern JRE_EE_PATTERN = Pattern.compile("(<executionEnvironment>org.eclipse.justj.openjdk.hotspot.jre.full-)[1-9][0-9]+(</executionEnvironment>)");
+
+  public static void main(String[] args) throws Exception
+  {
+    String releaseTrainVersion = "2022-09";
+    String eclipseUpdatesVersion = "4.26";
+
+    String jarsignerVersion = "1.3.2";
+    String tychoVersion = "2.7.4";
+
+    int jreVersion = 17;
+
+    for (String path : args)
+    {
+      Path root = Path.of(path);
+      Files.walkFileTree(root, new SimpleFileVisitor<Path>()
+        {
+          @Override
+          public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException
+          {
+            return IGNORED_FOLDERS.stream().anyMatch(it -> dir.endsWith(it)) ? FileVisitResult.SKIP_SUBTREE : FileVisitResult.CONTINUE;
+          }
+
+          @Override
+          public FileVisitResult visitFile(Path path, BasicFileAttributes attrs) throws IOException
+          {
+            if (attrs.isRegularFile())
+            {
+              URI uri = URI.createFileURI(path.toString());
+              String fileExtension = uri.fileExtension();
+              if (fileExtension == null || !IGNORED_FILE_EXTENSIONS.contains(fileExtension))
+              {
+                String content = Files.readString(path);
+                String result = content;
+                result = replace(path, result, RELEASE_TRAIN_PATTERN, "$1\\" + releaseTrainVersion);
+                result = replace(path, result, ECLIPSE_UPDATES_PATTERN, "$1\\" + eclipseUpdatesVersion + "$2");
+
+                result = replace(path, result, TYCHO_VERSION_PATTERN, "$1\\" + tychoVersion + "$2");
+                result = replace(path, result, JARSIGNER_VERSION_PATTERN, "$1\\" + jarsignerVersion + "$2");
+
+                if (uri.segmentsList().contains("epp") || "setup".equals(fileExtension))
+                {
+                  result = replace(path, result, JRE_VERSION_PATTERN, jreVersion + "$1$2");
+                  result = replace(path, result, JRE_VERSION_RANGE_PATTERN, "$1\\" + jreVersion + ".0.0," + (jreVersion + 1) + ".0.0$2");
+                  result = replace(path, result, JRE_URL_PATTERN, "$1\\" + jreVersion + "$2");
+                  result = replace(path, result, JRE_EE_PATTERN, "$1\\" + jreVersion + "$2");
+                }
+
+                if (!result.equals(content))
+                {
+                  Files.writeString(path, result);
+                  System.err.println("> " + path);
+                }
+              }
+            }
+            return FileVisitResult.CONTINUE;
+          }
+        });
+    }
+  }
+
+  public static String replace(Path file, String content, Pattern pattern, String replacement)
+  {
+    Matcher matcher = pattern.matcher(content);
+    if (matcher.find())
+    {
+      System.out.println("> " + file + " : " + pattern + " -> " + replacement);
+
+      StringBuilder result = new StringBuilder();
+      do
+      {
+        matcher.appendReplacement(result, replacement);
+      }
+      while (matcher.find());
+      matcher.appendTail(result);
+      return result.toString();
+    }
+    return content;
+  }
+}
diff --git a/releng/org.eclipse.justj.tools.releng/JustJ.setup b/releng/org.eclipse.justj.tools.releng/JustJ.setup
index 6ea6178..f7e68be 100644
--- a/releng/org.eclipse.justj.tools.releng/JustJ.setup
+++ b/releng/org.eclipse.justj.tools.releng/JustJ.setup
@@ -11,7 +11,8 @@
     xmlns:setup.targlets="http://www.eclipse.org/oomph/setup/targlets/1.0"
     xmlns:setup.workingsets="http://www.eclipse.org/oomph/setup/workingsets/1.0"
     xmlns:workbench="http://www.eclipse.org/oomph/setup/workbench/1.0"
-    xsi:schemaLocation="http://www.eclipse.org/oomph/setup/git/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/Git.ecore http://www.eclipse.org/oomph/setup/jdt/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/JDT.ecore http://www.eclipse.org/oomph/predicates/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/Predicates.ecore http://www.eclipse.org/oomph/setup/targlets/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/SetupTarglets.ecore http://www.eclipse.org/oomph/setup/workingsets/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/SetupWorkingSets.ecore http://www.eclipse.org/oomph/setup/workbench/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/Workbench.ecore"
+    xmlns:workingsets="http://www.eclipse.org/oomph/workingsets/1.0"
+    xsi:schemaLocation="http://www.eclipse.org/oomph/setup/git/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/Git.ecore http://www.eclipse.org/oomph/setup/jdt/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/JDT.ecore http://www.eclipse.org/oomph/predicates/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/Predicates.ecore http://www.eclipse.org/oomph/setup/targlets/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/SetupTarglets.ecore http://www.eclipse.org/oomph/setup/workingsets/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/SetupWorkingSets.ecore http://www.eclipse.org/oomph/setup/workbench/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/Workbench.ecore http://www.eclipse.org/oomph/workingsets/1.0 http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/models/WorkingSets.ecore"
     name="justj"
     label="JustJ">
   <annotation
@@ -115,6 +116,10 @@
       <description>${scope.project.label}</description>
     </setupTask>
     <setupTask
+        xsi:type="setup:StringSubstitutionTask"
+        name="justj.clone.location"
+        value="${git.clone.justj.location}"/>
+    <setupTask
         xsi:type="setup.targlets:TargletTask">
       <targlet
           name="JustJ JREs">
@@ -122,10 +127,15 @@
             name="*"/>
         <sourceLocator
             rootFolder="${git.clone.justj.location}"/>
+        <repositoryList>
+          <repository
+              url="https://download.eclipse.org/justj/jres/17/updates/release/latest"/>
+        </repositoryList>
       </targlet>
     </setupTask>
     <setupTask
-        xsi:type="setup.workingsets:WorkingSetTask">
+        xsi:type="setup.workingsets:WorkingSetTask"
+        id="justj.jres">
       <workingSet
           name="JustJ JREs">
         <predicate
@@ -133,6 +143,19 @@
           <operand
               xsi:type="predicates:RepositoryPredicate"
               project="org.eclipse.justj.model"/>
+          <operand
+              xsi:type="workingsets:ExclusionPredicate"
+              excludedWorkingSet="//'justj.jres'/@workingSets[name='JustJ%20EPP']"/>
+        </predicate>
+      </workingSet>
+      <workingSet
+          name="JustJ EPP">
+        <predicate
+            xsi:type="predicates:AndPredicate">
+          <operand
+              xsi:type="predicates:RepositoryPredicate"
+              project="org.eclipse.justj.model"
+              relativePathPattern="epp/.*"/>
         </predicate>
       </workingSet>
     </setupTask>
@@ -951,6 +974,10 @@
       <description>${scope.project.label}</description>
     </setupTask>
     <setupTask
+        xsi:type="setup:StringSubstitutionTask"
+        name="justj.tools.clone.location"
+        value="${git.clone.justj.tools.location}"/>
+    <setupTask
         xsi:type="setup.targlets:TargletTask">
       <targlet
           name="JustJ Tools">
@@ -1020,6 +1047,10 @@
       <description>${scope.project.label}</description>
     </setupTask>
     <setupTask
+        xsi:type="setup:StringSubstitutionTask"
+        name="justj.www.clone.location"
+        value="${git.clone.www.eclipse.org.justj.location}"/>
+    <setupTask
         xsi:type="setup.targlets:TargletTask">
       <targlet
           name="JustJ Website">