diff --git a/3rdparty/Frame b/3rdparty/Frame
index 0a3b2aa..2e0124b 160000
--- a/3rdparty/Frame
+++ b/3rdparty/Frame
@@ -1 +1 @@
-Subproject commit 0a3b2aa8b9fd0789e120351a887954c7d583069f
+Subproject commit 2e0124bf33ccf905dd7f912b4c28ee395aa51c69
diff --git a/ObjectDetector_interface_C++_library_v1.5.1.pdf b/ObjectDetector_interface_C++_library_v1.6.1.pdf
similarity index 64%
rename from ObjectDetector_interface_C++_library_v1.5.1.pdf
rename to ObjectDetector_interface_C++_library_v1.6.1.pdf
index 79652fa..aa3f877 100644
Binary files a/ObjectDetector_interface_C++_library_v1.5.1.pdf and b/ObjectDetector_interface_C++_library_v1.6.1.pdf differ
diff --git a/README.md b/README.md
index c80e595..8354957 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 # **ObjectDetector interface C++ library**
 
-**v1.5.1**
+**v1.6.1**
 
 
 
@@ -64,6 +64,7 @@
 | 1.4.0   | 24.09.2023   | - Updated encode(...) and decode(...) methods of ObjectDetectorParams.<br />- Added decodeAndExecuteCommand(...) method.<br />- Added example of object detector implementation. |
 | 1.5.0   | 26.09.2023   | - Signature of getParams(...) method changed.                |
 | 1.5.1   | 13.11.2023   | - Frame class updated.                                       |
+| 1.6.1   | 14.12.2023   | - Virtual destructor added.<br />- Frame class updated.      |
 
 
 
@@ -109,6 +110,9 @@ class ObjectDetector
 {
 public:
 
+    /// Class destructor.
+    virtual ~ObjectDetector();
+
     /// Get string of current library version.
     static std::string getVersion();
 
@@ -175,7 +179,7 @@ std::cout << "ObjectDetector class version: " << ObjectDetector::getVersion() <<
 Console output:
 
 ```bash
-ObjectDetector class version: 1.4.0
+ObjectDetector class version: 1.6.1
 ```
 
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3e8c40e..4c22fc9 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.13)
 ## LIBRARY-PROJECT
 ## name and version
 ###############################################################################
-project(ObjectDetector VERSION 1.5.0 LANGUAGES CXX)
+project(ObjectDetector VERSION 1.6.1 LANGUAGES CXX)
 
 
 
diff --git a/src/ObjectDetector.cpp b/src/ObjectDetector.cpp
index d22cc1e..5767dd3 100644
--- a/src/ObjectDetector.cpp
+++ b/src/ObjectDetector.cpp
@@ -3,6 +3,13 @@
 
 
 
+cr::detector::ObjectDetector::~ObjectDetector()
+{
+    
+}
+
+
+
 std::string cr::detector::ObjectDetector::getVersion()
 {
     return OBJECT_DETECTOR_VERSION;
diff --git a/src/ObjectDetector.h b/src/ObjectDetector.h
index cad522f..6c15cd7 100644
--- a/src/ObjectDetector.h
+++ b/src/ObjectDetector.h
@@ -291,6 +291,11 @@ class ObjectDetector
 {
 public:
 
+    /**
+     * @brief Class destructor.
+     */
+    virtual ~ObjectDetector();
+
     /**
      * @brief Get string of current library version.
      * @return String of current library version.
diff --git a/src/ObjectDetectorVersion.h b/src/ObjectDetectorVersion.h
index 51c8680..4bf7bf0 100644
--- a/src/ObjectDetectorVersion.h
+++ b/src/ObjectDetectorVersion.h
@@ -1,7 +1,7 @@
 #pragma once
 
 #define OBJECT_DETECTOR_MAJOR_VERSION 1
-#define OBJECT_DETECTOR_MINOR_VERSION 5
-#define OBJECT_DETECTOR_PATCH_VERSION 0
+#define OBJECT_DETECTOR_MINOR_VERSION 6
+#define OBJECT_DETECTOR_PATCH_VERSION 1
 
-#define OBJECT_DETECTOR_VERSION "1.5.0"
+#define OBJECT_DETECTOR_VERSION "1.6.1"