diff --git a/AppImageBuilder.yml b/AppImageBuilder.yml
index dae00b6..3d9cf78 100644
--- a/AppImageBuilder.yml
+++ b/AppImageBuilder.yml
@@ -13,6 +13,8 @@ script:
   - cp bin/evaluate.py  $TARGET_APPDIR/usr/bin/
   - cp -r src/*  $TARGET_APPDIR/usr/src/
   - cp src/pkm.vogel.nmreval.desktop $TARGET_APPDIR/usr/share/applications
+  # set current date as version info
+  - sed -i "s/CURRENT_DATE/$(date +'%Y-%m-%d')/" $TARGET_APPDIR/usr/src/nmreval/version.py
 
 
 AppDir:
diff --git a/src/gui_qt/_py/basewindow.py b/src/gui_qt/_py/basewindow.py
index 07a2cc1..67fcb95 100644
--- a/src/gui_qt/_py/basewindow.py
+++ b/src/gui_qt/_py/basewindow.py
@@ -2,7 +2,7 @@
 
 # Form implementation generated from reading ui file 'src/resources/_ui/basewindow.ui'
 #
-# Created by: PyQt5 UI code generator 5.15.9
+# Created by: PyQt5 UI code generator 5.15.2
 #
 # WARNING: Any manual changes made to this file will be lost when pyuic5 is
 # run again.  Do not edit this file unless you know what you are doing.
@@ -360,6 +360,8 @@ class Ui_BaseWindow(object):
         self.actionShow_error_log.setObjectName("actionShow_error_log")
         self.actionCreate_starter = QtWidgets.QAction(BaseWindow)
         self.actionCreate_starter.setObjectName("actionCreate_starter")
+        self.actionAbout = QtWidgets.QAction(BaseWindow)
+        self.actionAbout.setObjectName("actionAbout")
         self.menuSave.addAction(self.actionSave)
         self.menuSave.addAction(self.actionExportGraphic)
         self.menuSave.addAction(self.action_save_fit_parameter)
@@ -385,9 +387,9 @@ class Ui_BaseWindow(object):
         self.menuData.addSeparator()
         self.menuData.addAction(self.actionChange_datatypes)
         self.menuHelp.addAction(self.actionShow_error_log)
-        self.menuHelp.addAction(self.actionDocumentation)
         self.menuHelp.addAction(self.actionUpdate)
         self.menuHelp.addAction(self.actionBugs)
+        self.menuHelp.addAction(self.actionAbout)
         self.menuNormalize.addAction(self.action_norm_max)
         self.menuNormalize.addAction(self.action_norm_max_abs)
         self.menuNormalize.addSeparator()
@@ -485,7 +487,7 @@ class Ui_BaseWindow(object):
 
         self.retranslateUi(BaseWindow)
         self.tabWidget.setCurrentIndex(0)
-        self.action_close.triggered.connect(BaseWindow.close) # type: ignore
+        self.action_close.triggered.connect(BaseWindow.close)
         QtCore.QMetaObject.connectSlotsByName(BaseWindow)
 
     def retranslateUi(self, BaseWindow):
@@ -616,6 +618,7 @@ class Ui_BaseWindow(object):
         self.actionBugs.setText(_translate("BaseWindow", "Bugs! Problems! Wishes!"))
         self.actionShow_error_log.setText(_translate("BaseWindow", "Show error log"))
         self.actionCreate_starter.setText(_translate("BaseWindow", "Create starter.."))
+        self.actionAbout.setText(_translate("BaseWindow", "About..."))
 from ..data.datawidget.datawidget import DataWidget
 from ..data.integral_widget import IntegralWidget
 from ..data.point_select import PointSelectWidget
diff --git a/src/gui_qt/main/mainwindow.py b/src/gui_qt/main/mainwindow.py
index 77bc0c2..88ab8a2 100644
--- a/src/gui_qt/main/mainwindow.py
+++ b/src/gui_qt/main/mainwindow.py
@@ -1071,3 +1071,8 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
     @QtCore.pyqtSlot(name='on_actionCreate_starter_triggered')
     def create_starter(self):
         make_starter(os.getenv('APPIMAGE'))
+
+    @QtCore.pyqtSlot(name='on_actionAbout_triggered')
+    def show_version(self):
+        from nmreval.version import __version__
+        QtWidgets.QMessageBox.about(self, 'Version', f'Build date of AppImage: {__version__}')
diff --git a/src/nmreval/version.py b/src/nmreval/version.py
index 05c7787..db34e87 100644
--- a/src/nmreval/version.py
+++ b/src/nmreval/version.py
@@ -1,3 +1,2 @@
 # coding=utf-8
-__version__ = '0.1.1'
-__releasename__ = 'Snobilikat'
+__version__ = 'CURRENT_DATE'
diff --git a/src/resources/_ui/basewindow.ui b/src/resources/_ui/basewindow.ui
index 0935eb0..5cb3174 100644
--- a/src/resources/_ui/basewindow.ui
+++ b/src/resources/_ui/basewindow.ui
@@ -190,9 +190,9 @@
      <string>&amp;Help</string>
     </property>
     <addaction name="actionShow_error_log"/>
-    <addaction name="actionDocumentation"/>
     <addaction name="actionUpdate"/>
     <addaction name="actionBugs"/>
+    <addaction name="actionAbout"/>
    </widget>
    <widget class="QMenu" name="menuExtra">
     <property name="title">
@@ -1005,6 +1005,11 @@
     <string>Create starter..</string>
    </property>
   </action>
+  <action name="actionAbout">
+   <property name="text">
+    <string>About...</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>