diff --git a/map65/mainwindow.cpp b/map65/mainwindow.cpp
index f3d08f2a1..7a889b0c8 100644
--- a/map65/mainwindow.cpp
+++ b/map65/mainwindow.cpp
@@ -981,6 +981,13 @@ void MainWindow::stub()                                        //stub()
   msgBox("Not yet implemented.");
 }
 
+void MainWindow::on_actionRelease_Notes_triggered()
+{
+  QDesktopServices::openUrl(QUrl(
+  "https://www.physics.princeton.edu/pulsar/K1JT/Release_Notes.txt",
+                              QUrl::TolerantMode));
+}
+
 void MainWindow::on_actionOnline_Users_Guide_triggered()      //Display manual
 {
   QDesktopServices::openUrl(QUrl(
diff --git a/map65/mainwindow.h b/map65/mainwindow.h
index 7dbe1194c..d03028de4 100644
--- a/map65/mainwindow.h
+++ b/map65/mainwindow.h
@@ -76,6 +76,7 @@ private slots:
   void on_tolSpinBox_valueChanged(int arg1);
   void on_actionAstro_Data_triggered();
   void on_stopButton_clicked();
+  void on_actionRelease_Notes_triggered();
   void on_actionOnline_Users_Guide_triggered();
   void on_actionQSG_Q65_triggered();
   void on_actionQSG_MAP65_v3_triggered();
diff --git a/map65/mainwindow.ui b/map65/mainwindow.ui
index c52295a93..7497108da 100644
--- a/map65/mainwindow.ui
+++ b/map65/mainwindow.ui
@@ -1233,6 +1233,7 @@ p, li { white-space: pre-wrap; }
     <property name="title">
      <string>Help</string>
     </property>
+    <addaction name="actionRelease_Notes"/>
     <addaction name="actionOnline_Users_Guide"/>
     <addaction name="actionQSG_Q65"/>
     <addaction name="actionQSG_MAP65_v3"/>
@@ -1698,6 +1699,11 @@ p, li { white-space: pre-wrap; }
     <string>Q65 Sensitivity in MAP65 3.0</string>
    </property>
   </action>
+  <action name="actionRelease_Notes">
+   <property name="text">
+    <string>Release Notes</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>