diff --git a/org.eclipse.wb.os.linux/.classpath b/org.eclipse.wb.os.linux/.classpath
index 375961e4d..98c57b8d8 100644
--- a/org.eclipse.wb.os.linux/.classpath
+++ b/org.eclipse.wb.os.linux/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-24"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/org.eclipse.wb.os.linux/.settings/org.eclipse.jdt.core.prefs b/org.eclipse.wb.os.linux/.settings/org.eclipse.jdt.core.prefs
index 23a92494d..5d2f6160f 100644
--- a/org.eclipse.wb.os.linux/.settings/org.eclipse.jdt.core.prefs
+++ b/org.eclipse.wb.os.linux/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,8 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=24
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=21
+org.eclipse.jdt.core.compiler.compliance=24
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
@@ -65,7 +65,7 @@ org.eclipse.jdt.core.compiler.problem.unusedParameterWhenOverridingConcrete=disa
 org.eclipse.jdt.core.compiler.problem.unusedPrivateMember=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
 org.eclipse.jdt.core.compiler.release=enabled
-org.eclipse.jdt.core.compiler.source=21
+org.eclipse.jdt.core.compiler.source=24
 org.eclipse.jdt.core.formatter.align_assignment_statements_on_columns=false
 org.eclipse.jdt.core.formatter.align_fields_grouping_blank_lines=2147483647
 org.eclipse.jdt.core.formatter.align_selector_in_method_invocation_on_expression_first_line=true
diff --git a/org.eclipse.wb.os.linux/META-INF/MANIFEST.MF b/org.eclipse.wb.os.linux/META-INF/MANIFEST.MF
index 3ea8f57b0..4c71e5606 100644
--- a/org.eclipse.wb.os.linux/META-INF/MANIFEST.MF
+++ b/org.eclipse.wb.os.linux/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@ Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.wb.os.linux;singleton:=true
 Bundle-Version: 1.10.200.qualifier
 Bundle-Vendor: %providerName
-Bundle-RequiredExecutionEnvironment: JavaSE-21
+Bundle-RequiredExecutionEnvironment: JavaSE-24
 Eclipse-PlatformFilter: (& (osgi.ws=gtk) (osgi.os=linux))
 Require-Bundle: org.eclipse.swt;bundle-version="[3.126.0,4.0.0)",
  org.eclipse.core.runtime;bundle-version="[3.31.100,4.0.0)",
diff --git a/org.eclipse.wb.os.linux/src/org/eclipse/wb/internal/os/linux/gtk3/GTK3.java b/org.eclipse.wb.os.linux/src/org/eclipse/wb/internal/os/linux/gtk3/GTK3.java
new file mode 100644
index 000000000..f1fedf926
--- /dev/null
+++ b/org.eclipse.wb.os.linux/src/org/eclipse/wb/internal/os/linux/gtk3/GTK3.java
@@ -0,0 +1,54 @@
+/*******************************************************************************
+ * Copyright (c) 2025 Patrick Ziegler 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
+ * https://www.eclipse.org/legal/epl-2.0.
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *    Patrick Ziegler - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.wb.internal.os.linux.gtk3;
+
+import java.lang.foreign.Arena;
+import java.lang.foreign.FunctionDescriptor;
+import java.lang.foreign.Linker;
+import java.lang.foreign.MemorySegment;
+import java.lang.foreign.SymbolLookup;
+import java.lang.foreign.ValueLayout;
+import java.lang.invoke.MethodHandle;
+
+public final class GTK3 {
+	private static class InstanceHolder {
+		private static final Linker linker = Linker.nativeLinker();
+		private static final SymbolLookup gtk = SymbolLookup.libraryLookup("libgtk-3.so", Arena.ofAuto());
+
+		private static MethodHandle createHandle(String name, FunctionDescriptor descriptor) {
+			MemorySegment symbol = gtk.find(name).orElseThrow(UnsatisfiedLinkError::new);
+			return InstanceHolder.linker.downcallHandle(symbol, descriptor);
+		}
+
+		static final MethodHandle gtk_get_major_version = createHandle("gtk_get_major_version",
+				FunctionDescriptor.of(ValueLayout.JAVA_INT));
+
+		static final MethodHandle gtk_get_minor_version = createHandle("gtk_get_minor_version",
+				FunctionDescriptor.of(ValueLayout.JAVA_INT));
+
+		static final MethodHandle gtk_get_micro_version = createHandle("gtk_get_micro_version",
+				FunctionDescriptor.of(ValueLayout.JAVA_INT));
+	}
+
+	public static int gtk_get_major_version() throws Throwable {
+		return (int) InstanceHolder.gtk_get_major_version.invoke();
+	}
+
+	public static int gtk_get_minor_version() throws Throwable {
+		return (int) InstanceHolder.gtk_get_minor_version.invoke();
+	}
+
+	public static int gtk_get_micro_version() throws Throwable {
+		return (int) InstanceHolder.gtk_get_micro_version.invoke();
+	}
+}