diff --git a/org.eclipse.wb.core.java/META-INF/MANIFEST.MF b/org.eclipse.wb.core.java/META-INF/MANIFEST.MF
index 1777a6b17..ce0a90f29 100755
--- a/org.eclipse.wb.core.java/META-INF/MANIFEST.MF
+++ b/org.eclipse.wb.core.java/META-INF/MANIFEST.MF
@@ -12,7 +12,7 @@ Require-Bundle: org.eclipse.ui;bundle-version="[3.206.0,4.0.0)",
  org.eclipse.debug.ui;bundle-version="[3.18.400,4.0.0)",
  org.eclipse.core.resources;bundle-version="[3.20.200,4.0.0)",
  org.eclipse.ui.editors;bundle-version="[3.17.300,4.0.0)",
- org.eclipse.wb.core;bundle-version="[1.24.0,2.0.0)",
+ org.eclipse.wb.core;bundle-version="[1.25.0,2.0.0)",
  org.eclipse.wb.core.databinding.xsd;bundle-version="[1.0.300,2.0.0)",
  org.eclipse.compare;bundle-version="[3.11.0,4.0.0)",
  org.eclipse.jdt.core;bundle-version="[3.38.0,4.0.0)";visibility:=reexport,
diff --git a/org.eclipse.wb.core.java/src/org/eclipse/wb/internal/core/utils/jdt/core/ProjectUtils.java b/org.eclipse.wb.core.java/src/org/eclipse/wb/internal/core/utils/jdt/core/ProjectUtils.java
index 5e18c9b42..a33ae0951 100644
--- a/org.eclipse.wb.core.java/src/org/eclipse/wb/internal/core/utils/jdt/core/ProjectUtils.java
+++ b/org.eclipse.wb.core.java/src/org/eclipse/wb/internal/core/utils/jdt/core/ProjectUtils.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2011, 2024 Google, Inc. and others.
+ * Copyright (c) 2011, 2026 Google, Inc. and others.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
@@ -424,7 +424,9 @@ public static SortedSet<String> getAllPluginLibraries() {
 		symbolicNames.add("org.eclipse.jface");
 		symbolicNames.add("org.eclipse.jface.text");
 		symbolicNames.add("org.eclipse.ui.workbench");
-		symbolicNames.add("com.ibm.icu");
+		if (EnvironmentUtils.isICU4JEnabled()) {
+			symbolicNames.add("com.ibm.icu");
+		}
 		symbolicNames.add("org.eclipse.ui.forms");
 		// SWT
 		String pluginId = "org.eclipse.swt." + SWT.getPlatform() + "." + Platform.getOS();
diff --git a/org.eclipse.wb.core/src/org/eclipse/wb/internal/core/EnvironmentUtils.java b/org.eclipse.wb.core/src/org/eclipse/wb/internal/core/EnvironmentUtils.java
index 8e56dd966..2f5c461ea 100644
--- a/org.eclipse.wb.core/src/org/eclipse/wb/internal/core/EnvironmentUtils.java
+++ b/org.eclipse.wb.core/src/org/eclipse/wb/internal/core/EnvironmentUtils.java
@@ -12,6 +12,7 @@
  *******************************************************************************/
 package org.eclipse.wb.internal.core;
 
+import org.eclipse.core.runtime.Platform;
 import org.eclipse.ui.plugin.AbstractUIPlugin;
 
 import org.apache.commons.lang3.SystemUtils;
@@ -196,4 +197,13 @@ public static boolean isGefPalette() {
 	public static boolean isBurningWaveEnabled() {
 		return Boolean.valueOf(System.getProperty(WBP_BURNINGWAVE, Boolean.FALSE.toString()));
 	}
+
+	private static final boolean IS_ICU4J_ENABLED = Platform.getBundle("com.ibm.icu") != null;
+
+	/**
+	 * ICU4J was removed as a platform dependency with the 2026-09 release.
+	 */
+	public static boolean isICU4JEnabled() {
+		return IS_ICU4J_ENABLED;
+	}
 }
diff --git a/org.eclipse.wb.rcp/META-INF/MANIFEST.MF b/org.eclipse.wb.rcp/META-INF/MANIFEST.MF
index 34632c434..e5e643693 100644
--- a/org.eclipse.wb.rcp/META-INF/MANIFEST.MF
+++ b/org.eclipse.wb.rcp/META-INF/MANIFEST.MF
@@ -93,7 +93,7 @@ Require-Bundle: org.eclipse.core.runtime;bundle-version="[3.31.100,4.0.0)",
  org.eclipse.ui;bundle-version="[3.206.0,4.0.0)",
  org.eclipse.ui.forms;bundle-version="[3.13.300,4.0.0)",
  org.eclipse.search;bundle-version="[3.16.200,4.0.0)",
- org.eclipse.wb.core;bundle-version="[1.21.0,2.0.0)",
+ org.eclipse.wb.core;bundle-version="[1.25.0,2.0.0)",
  org.eclipse.wb.core.ui;bundle-version="[1.10.800,2.0.0)",
  org.eclipse.wb.core.java;bundle-version="[1.15.0,2.0.0)",
  org.eclipse.wb.swt;bundle-version="[1.10.100,2.0.0)",
diff --git a/org.eclipse.wb.rcp/src/org/eclipse/wb/internal/rcp/parser/ParseFactory.java b/org.eclipse.wb.rcp/src/org/eclipse/wb/internal/rcp/parser/ParseFactory.java
index dc8d9ad52..b82cb48b4 100644
--- a/org.eclipse.wb.rcp/src/org/eclipse/wb/internal/rcp/parser/ParseFactory.java
+++ b/org.eclipse.wb.rcp/src/org/eclipse/wb/internal/rcp/parser/ParseFactory.java
@@ -18,6 +18,7 @@
 import org.eclipse.wb.core.model.JavaInfo;
 import org.eclipse.wb.core.model.ObjectInfoUtils;
 import org.eclipse.wb.core.model.association.ConstructorParentAssociation;
+import org.eclipse.wb.internal.core.EnvironmentUtils;
 import org.eclipse.wb.internal.core.model.JavaInfoUtils;
 import org.eclipse.wb.internal.core.model.creation.ConstructorCreationSupport;
 import org.eclipse.wb.internal.core.model.creation.CreationSupport;
@@ -512,7 +513,9 @@ protected IParseRealm getRealm() {
 	@Override
 	protected void initializeClassLoader_parent(AstEditor editor,
 			CompositeClassLoader parentClassLoader) throws Exception {
-		parentClassLoader.add(new BundleClassLoader("com.ibm.icu"), List.of("com.ibm.icu."));
+		if (EnvironmentUtils.isICU4JEnabled()) {
+			parentClassLoader.add(new BundleClassLoader("com.ibm.icu"), List.of("com.ibm.icu."));
+		}
 		parentClassLoader.add(new BundleClassLoader("org.eclipse.ui"), null);
 		parentClassLoader.add(new BundleClassLoader("org.eclipse.ui.forms"), null);
 		parentClassLoader.add(new BundleClassLoader("org.eclipse.jdt.ui"), null);
diff --git a/org.eclipse.wb.tests/META-INF/MANIFEST.MF b/org.eclipse.wb.tests/META-INF/MANIFEST.MF
index aa51c0807..bdfa7433f 100644
--- a/org.eclipse.wb.tests/META-INF/MANIFEST.MF
+++ b/org.eclipse.wb.tests/META-INF/MANIFEST.MF
@@ -28,7 +28,7 @@ Require-Bundle: org.eclipse.core.runtime;bundle-version="[3.31.100,4.0.0)",
  org.eclipse.nebula.widgets.grid;bundle-version="[1.1.1,2.0.0)",
  org.eclipse.nebula.widgets.pshelf;bundle-version="[1.1.0,2.0.0)",
  org.eclipse.swtbot.eclipse.finder;bundle-version="[4.2.0,5.0.0)",
- org.eclipse.wb.core;bundle-version="[1.22.0,2.0.0)",
+ org.eclipse.wb.core;bundle-version="[1.25.0,2.0.0)",
  org.eclipse.wb.core.java;bundle-version="[1.13.100,2.0.0)",
  org.eclipse.wb.swing;bundle-version="[1.10.200,2.0.0)",
  org.eclipse.wb.swing.FormLayout;bundle-version="[1.12.100,2.0.0)",
diff --git a/org.eclipse.wb.tests/src/org/eclipse/wb/tests/designer/databinding/rcp/DatabindingTestUtils.java b/org.eclipse.wb.tests/src/org/eclipse/wb/tests/designer/databinding/rcp/DatabindingTestUtils.java
index f96bf42c0..5c197275b 100644
--- a/org.eclipse.wb.tests/src/org/eclipse/wb/tests/designer/databinding/rcp/DatabindingTestUtils.java
+++ b/org.eclipse.wb.tests/src/org/eclipse/wb/tests/designer/databinding/rcp/DatabindingTestUtils.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2011, 2023 Google, Inc.
+ * Copyright (c) 2011, 2026 Google, Inc. and others.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
@@ -12,6 +12,7 @@
  *******************************************************************************/
 package org.eclipse.wb.tests.designer.databinding.rcp;
 
+import org.eclipse.wb.internal.core.EnvironmentUtils;
 import org.eclipse.wb.internal.swt.model.widgets.CompositeInfo;
 import org.eclipse.wb.tests.designer.core.TestProject;
 import org.eclipse.wb.tests.designer.core.model.parser.AbstractJavaInfoTest;
@@ -28,7 +29,9 @@ public class DatabindingTestUtils {
 	 */
 	public static void configure(TestProject testProject) throws Exception {
 		BTestUtils.configure(testProject);
-		testProject.addPlugin("com.ibm.icu");
+		if (EnvironmentUtils.isICU4JEnabled()) {
+			testProject.addPlugin("com.ibm.icu");
+		}
 		testProject.addPlugin("org.eclipse.core.databinding");
 		testProject.addPlugin("org.eclipse.core.databinding.beans");
 		testProject.addPlugin("org.eclipse.core.databinding.observable");