diff --git a/OnDemandUpdatePTU.pro b/OnDemandUpdatePTU.pro
index 6855d62..a0a3fb6 100644
--- a/OnDemandUpdatePTU.pro
+++ b/OnDemandUpdatePTU.pro
@@ -34,6 +34,7 @@ DEFINES += QT_DEPRECATED_WARNINGS
 #           too small when updating apism.
 #           Fix display of UPDATE_SUCCESS when opkg_command fails. Detected when
 #           updating apsim failed.
+# 1.3.11:   Integrate version of ATBUpdateTool in SendLastVersion-ISMAS-message.
 
 win32 {
     BUILD_DATE=$$system("date /t")
@@ -43,7 +44,10 @@ win32 {
     BUILD_TIME=$$system("date +%H:%M:%S")
 }
 
-VERSION="1.3.10"
+GIT_COMMIT=$$system("git log -1 --format=oneline | cut -d' ' -f1")
+
+VERSION="1.3.11"
+EXTENDED_VERSION="$${VERSION}-$${GIT_COMMIT}"
 
 INCLUDEPATH += plugins
 
@@ -53,6 +57,7 @@ CONFIG += c++17
 DEFINES+=APP_VERSION=\\\"$$VERSION\\\"
 DEFINES+=APP_BUILD_DATE=\\\"$$BUILD_DATE\\\"
 DEFINES+=APP_BUILD_TIME=\\\"$$BUILD_TIME\\\"
+DEFINES+=APP_EXTENDED_VERSION=\\\"$$EXTENDED_VERSION\\\"
 
 QMAKE_CXXFLAGS += -g
 QMAKE_CXXFLAGS += -Wno-deprecated-copy