diff --git a/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/IWorkbenchPreferenceConstants.java b/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/IWorkbenchPreferenceConstants.java
index 7e7d6ad2f02..9885d08b005 100644
--- a/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/IWorkbenchPreferenceConstants.java
+++ b/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/IWorkbenchPreferenceConstants.java
@@ -70,7 +70,7 @@ public interface IWorkbenchPreferenceConstants {
 	 *             perspective. Callers should use IWorkbench.showPerspective
 	 *             methods.
 	 */
-	@Deprecated
+	@Deprecated(forRemoval = true, since = "2025-03")
 	String ALTERNATE_OPEN_NEW_PERSPECTIVE = "ALTERNATE_OPEN_NEW_PERSPECTIVE"; //$NON-NLS-1$
 
 	/**
@@ -86,7 +86,7 @@ public interface IWorkbenchPreferenceConstants {
 	 *             perspective. Callers should use IWorkbench.showPerspective
 	 *             methods.
 	 */
-	@Deprecated
+	@Deprecated(forRemoval = true, since = "2025-03")
 	String SHIFT_OPEN_NEW_PERSPECTIVE = "SHIFT_OPEN_NEW_PERSPECTIVE"; //$NON-NLS-1$
 
 	/**
@@ -107,7 +107,7 @@ public interface IWorkbenchPreferenceConstants {
 	 *             <code>org.eclipse.ui.ide.IDE.Preferences.PROJECT_OPEN_NEW_PERSPECTIVE</code>
 	 *             instead.
 	 */
-	@Deprecated
+	@Deprecated(forRemoval = true, since = "2025-03")
 	String PROJECT_OPEN_NEW_PERSPECTIVE = "PROJECT_OPEN_NEW_PERSPECTIVE"; //$NON-NLS-1$
 
 	/**
@@ -161,7 +161,7 @@ public interface IWorkbenchPreferenceConstants {
 	 * @deprecated not used anymore by platform
 	 * @since 3.0
 	 */
-	@Deprecated
+	@Deprecated(forRemoval = true, since = "2025-03")
 	String DOCK_PERSPECTIVE_BAR = "DOCK_PERSPECTIVE_BAR"; //$NON-NLS-1$
 
 	/**
@@ -375,7 +375,7 @@ public interface IWorkbenchPreferenceConstants {
 	 *
 	 * @deprecated not supported by the platform anymore
 	 */
-	@Deprecated
+	@Deprecated(forRemoval = true, since = "2025-03")
 	String ENABLE_ANIMATIONS = "ENABLE_ANIMATIONS"; //$NON-NLS-1$
 
 	/**
@@ -390,7 +390,7 @@ public interface IWorkbenchPreferenceConstants {
 	 *             when round or square corners are desired.
 	 * @since 3.120
 	 */
-	@Deprecated
+	@Deprecated(forRemoval = true, since = "2025-03")
 	String USE_ROUND_TABS = "USE_ROUND_TABS"; //$NON-NLS-1$
 
 	/**
diff --git a/bundles/org.eclipse.ui/src/org/eclipse/ui/internal/UIPreferenceInitializer.java b/bundles/org.eclipse.ui/src/org/eclipse/ui/internal/UIPreferenceInitializer.java
index 43d4221d6a7..a8baebcab2f 100644
--- a/bundles/org.eclipse.ui/src/org/eclipse/ui/internal/UIPreferenceInitializer.java
+++ b/bundles/org.eclipse.ui/src/org/eclipse/ui/internal/UIPreferenceInitializer.java
@@ -55,10 +55,6 @@ public void initializeDefaultPreferences() {
 		// Deprecated but kept for backwards compatibility
 		node.put(IWorkbenchPreferenceConstants.PROJECT_OPEN_NEW_PERSPECTIVE,
 				IWorkbenchPreferenceConstants.OPEN_PERSPECTIVE_REPLACE);
-		node.put(IWorkbenchPreferenceConstants.SHIFT_OPEN_NEW_PERSPECTIVE,
-				IWorkbenchPreferenceConstants.OPEN_PERSPECTIVE_REPLACE);
-		node.put(IWorkbenchPreferenceConstants.ALTERNATE_OPEN_NEW_PERSPECTIVE,
-				IWorkbenchPreferenceConstants.OPEN_PERSPECTIVE_REPLACE);
 
 		// Although there is no longer any item on the preference pages
 		// for setting the linking preference, since it is now a per-part