diff --git a/packages/tizen_rpc_port/CHANGELOG.md b/packages/tizen_rpc_port/CHANGELOG.md
index 4c94f3df9..bcdd57233 100644
--- a/packages/tizen_rpc_port/CHANGELOG.md
+++ b/packages/tizen_rpc_port/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.1.7
+
+* Guard Tizen 10.0+ specific Parcel APIs (`reader`, `dataSize`, and `reserve`) to throw `UnsupportedError` on unsupported versions of Tizen instead of crashing.
+* Add integration test cases for the guarded Tizen 10.0+ specific Parcel APIs.
+* Update README to mention system requirements for these APIs.
+
 ## 0.1.6
 
 * Read byte values as unsigned (0-255) so `Parcel.readByte` is consistent
diff --git a/packages/tizen_rpc_port/README.md b/packages/tizen_rpc_port/README.md
index 072e656ed..0ab555006 100644
--- a/packages/tizen_rpc_port/README.md
+++ b/packages/tizen_rpc_port/README.md
@@ -47,3 +47,6 @@ The following privileges may be added to the client app's `tizen-manifest.xml` f
 ## Supported devices
 
 This plugin is supported on Tizen devices running Tizen 6.5 or above.
+
+> **Note**
+> Some `Parcel` APIs (`reader`, `dataSize`, and `reserve`) are supported only on Tizen 10.0 or above. Calling these APIs on unsupported versions of Tizen will throw an `UnsupportedError`.
diff --git a/packages/tizen_rpc_port/example/client/integration_test/tizen_rpc_port_test.dart b/packages/tizen_rpc_port/example/client/integration_test/tizen_rpc_port_test.dart
index 4e1f00661..80564563c 100644
--- a/packages/tizen_rpc_port/example/client/integration_test/tizen_rpc_port_test.dart
+++ b/packages/tizen_rpc_port/example/client/integration_test/tizen_rpc_port_test.dart
@@ -283,4 +283,39 @@ void main() {
       expect(proxy.portName, 'TestPort');
     });
   });
+
+  // ---------------------------------------------------------------------------
+  // Tizen 10.0+ Parcel APIs (reader, dataSize, reserve) with safety guards
+  // ---------------------------------------------------------------------------
+
+  group('Tizen 10.0+ Parcel APIs', () {
+    testWidgets('reader getter/setter', (WidgetTester _) async {
+      final Parcel parcel = Parcel();
+      try {
+        parcel.reader = 10;
+        expect(parcel.reader, 10);
+      } on UnsupportedError catch (e) {
+        expect(e.message, contains('not supported on this version of Tizen'));
+      }
+    });
+
+    testWidgets('dataSize getter/setter', (WidgetTester _) async {
+      final Parcel parcel = Parcel();
+      try {
+        parcel.dataSize = 20;
+        expect(parcel.dataSize, 20);
+      } on UnsupportedError catch (e) {
+        expect(e.message, contains('not supported on this version of Tizen'));
+      }
+    });
+
+    testWidgets('reserve', (WidgetTester _) async {
+      final Parcel parcel = Parcel();
+      try {
+        parcel.reserve(100);
+      } on UnsupportedError catch (e) {
+        expect(e.message, contains('not supported on this version of Tizen'));
+      }
+    });
+  });
 }
diff --git a/packages/tizen_rpc_port/lib/src/parcel.dart b/packages/tizen_rpc_port/lib/src/parcel.dart
index 2ec3c61d2..7c73cf864 100644
--- a/packages/tizen_rpc_port/lib/src/parcel.dart
+++ b/packages/tizen_rpc_port/lib/src/parcel.dart
@@ -484,4 +484,179 @@ class Parcel {
       return ParcelHeader._fromHandle(pHeader.value);
     });
   }
+
+  /// Gets the reader position of this parcel.
+  int get reader {
+    _ensureFunctionsLoaded();
+    final int Function(rpc_port_parcel_h, Pointer<Uint32>)? func =
+        _rpcPortParcelGetReader;
+    if (func == null) {
+      throw UnsupportedError(
+        'The reader property is not supported on this version of Tizen.',
+      );
+    }
+    return using((Arena arena) {
+      final Pointer<Uint32> pValue = arena();
+      final int ret = func(_handle, pValue);
+      if (ret != 0) {
+        throw PlatformException(
+          code: ret.toString(),
+          message: tizen.get_error_message(ret).toDartString(),
+        );
+      }
+      return pValue.value;
+    });
+  }
+
+  /// Sets the reader position of this parcel.
+  set reader(int value) {
+    RangeError.checkNotNegative(value, 'value');
+    _ensureFunctionsLoaded();
+    final int Function(rpc_port_parcel_h, int)? func = _rpcPortParcelSetReader;
+    if (func == null) {
+      throw UnsupportedError(
+        'The reader property is not supported on this version of Tizen.',
+      );
+    }
+    final int ret = func(_handle, value);
+    if (ret != 0) {
+      throw PlatformException(
+        code: ret.toString(),
+        message: tizen.get_error_message(ret).toDartString(),
+      );
+    }
+  }
+
+  /// Gets the data size of this parcel.
+  int get dataSize {
+    _ensureFunctionsLoaded();
+    final int Function(rpc_port_parcel_h, Pointer<Uint32>)? func =
+        _rpcPortParcelGetDataSize;
+    if (func == null) {
+      throw UnsupportedError(
+        'The dataSize property is not supported on this version of Tizen.',
+      );
+    }
+    return using((Arena arena) {
+      final Pointer<Uint32> pValue = arena();
+      final int ret = func(_handle, pValue);
+      if (ret != 0) {
+        throw PlatformException(
+          code: ret.toString(),
+          message: tizen.get_error_message(ret).toDartString(),
+        );
+      }
+      return pValue.value;
+    });
+  }
+
+  /// Sets the data size of this parcel.
+  set dataSize(int value) {
+    RangeError.checkNotNegative(value, 'value');
+    _ensureFunctionsLoaded();
+    final int Function(rpc_port_parcel_h, int)? func =
+        _rpcPortParcelSetDataSize;
+    if (func == null) {
+      throw UnsupportedError(
+        'The dataSize property is not supported on this version of Tizen.',
+      );
+    }
+    final int ret = func(_handle, value);
+    if (ret != 0) {
+      throw PlatformException(
+        code: ret.toString(),
+        message: tizen.get_error_message(ret).toDartString(),
+      );
+    }
+  }
+
+  /// Reserves the capacity of this parcel.
+  void reserve(int size) {
+    RangeError.checkNotNegative(size, 'size');
+    _ensureFunctionsLoaded();
+    final int Function(rpc_port_parcel_h, int)? func = _rpcPortParcelReserve;
+    if (func == null) {
+      throw UnsupportedError(
+        'The reserve method is not supported on this version of Tizen.',
+      );
+    }
+    final int ret = func(_handle, size);
+    if (ret != 0) {
+      throw PlatformException(
+        code: ret.toString(),
+        message: tizen.get_error_message(ret).toDartString(),
+      );
+    }
+  }
+}
+
+DynamicLibrary? _libRpcPort;
+bool _libRpcPortLoaded = false;
+
+DynamicLibrary? _getLibRpcPort() {
+  if (!_libRpcPortLoaded) {
+    try {
+      _libRpcPort = DynamicLibrary.open('librpc-port.so.1');
+    } catch (_) {
+      _libRpcPort = null;
+    }
+    _libRpcPortLoaded = true;
+  }
+  return _libRpcPort;
+}
+
+int Function(rpc_port_parcel_h, Pointer<Uint32>)? _rpcPortParcelGetReader;
+int Function(rpc_port_parcel_h, int)? _rpcPortParcelSetReader;
+int Function(rpc_port_parcel_h, Pointer<Uint32>)? _rpcPortParcelGetDataSize;
+int Function(rpc_port_parcel_h, int)? _rpcPortParcelSetDataSize;
+int Function(rpc_port_parcel_h, int)? _rpcPortParcelReserve;
+
+bool _functionsLoaded = false;
+
+void _ensureFunctionsLoaded() {
+  if (_functionsLoaded) {
+    return;
+  }
+  _functionsLoaded = true;
+  final DynamicLibrary? lib = _getLibRpcPort();
+  if (lib == null) {
+    return;
+  }
+  try {
+    _rpcPortParcelGetReader = lib
+        .lookup<
+            NativeFunction<Int32 Function(rpc_port_parcel_h, Pointer<Uint32>)>>(
+          'rpc_port_parcel_get_reader',
+        )
+        .asFunction();
+  } catch (_) {}
+  try {
+    _rpcPortParcelSetReader = lib
+        .lookup<NativeFunction<Int32 Function(rpc_port_parcel_h, Uint32)>>(
+          'rpc_port_parcel_set_reader',
+        )
+        .asFunction();
+  } catch (_) {}
+  try {
+    _rpcPortParcelGetDataSize = lib
+        .lookup<
+            NativeFunction<Int32 Function(rpc_port_parcel_h, Pointer<Uint32>)>>(
+          'rpc_port_parcel_get_data_size',
+        )
+        .asFunction();
+  } catch (_) {}
+  try {
+    _rpcPortParcelSetDataSize = lib
+        .lookup<NativeFunction<Int32 Function(rpc_port_parcel_h, Uint32)>>(
+          'rpc_port_parcel_set_data_size',
+        )
+        .asFunction();
+  } catch (_) {}
+  try {
+    _rpcPortParcelReserve = lib
+        .lookup<NativeFunction<Int32 Function(rpc_port_parcel_h, Uint32)>>(
+          'rpc_port_parcel_reserve',
+        )
+        .asFunction();
+  } catch (_) {}
 }
diff --git a/packages/tizen_rpc_port/pubspec.yaml b/packages/tizen_rpc_port/pubspec.yaml
index 3d2e9905d..f5f031d8f 100644
--- a/packages/tizen_rpc_port/pubspec.yaml
+++ b/packages/tizen_rpc_port/pubspec.yaml
@@ -2,7 +2,7 @@ name: tizen_rpc_port
 description: Tizen RPC Port APIs. Used to make remote procedure calls between Tizen apps.
 homepage: https://github.com/flutter-tizen/plugins
 repository: https://github.com/flutter-tizen/plugins/tree/master/packages/tizen_rpc_port
-version: 0.1.6
+version: 0.1.7
 
 environment:
   sdk: ">=3.1.0 <4.0.0"