diff --git a/Gtk4/CMakeLists.txt b/Gtk4/CMakeLists.txt
index a68b44b..2237d2b 100644
--- a/Gtk4/CMakeLists.txt
+++ b/Gtk4/CMakeLists.txt
@@ -1,6 +1,6 @@
 set(CMAKE_CXX_STANDARD 17)
 cmake_minimum_required(VERSION 3.0.0)
-project(My_GtkUI VERSION 4.3.0)
+project(My_GtkUI VERSION 6.0.0)
 
 list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/../GCR_CMake/macros)
 include(GlibCompileResourcesSupport)
diff --git a/Gtk4/src/MainWin.cpp b/Gtk4/src/MainWin.cpp
index 60869c5..798fc18 100644
--- a/Gtk4/src/MainWin.cpp
+++ b/Gtk4/src/MainWin.cpp
@@ -136,14 +136,14 @@ static void about_activated(GSimpleAction * action, GVariant * parmeter, gpointe
         NULL
     };
     char *version;
-    version=g_strdup_printf("4.3\nRunning Against GTK %d.%d.%d",
+    version=g_strdup_printf("6.0\nRunning Against GTK %d.%d.%d",
                             gtk_get_major_version(),
                             gtk_get_minor_version(),
                             gtk_get_micro_version());
     GtkWidget *dialog;
     dialog=gtk_about_dialog_new();
     gtk_show_about_dialog(win,
-    "program-name","My_GtkUI",
+    "program-name","My GtkUI Classic",
     "version",version,
     "copyright", "© 2019—2021 The Xe Project",
     "comments", "A program that simulates desktop (Gtk4 Version)",