diff --git a/Directory.Build.props b/Directory.Build.props
index 34ce6fd293e86cc7652e021e37553ab2eb94de61..a3a15e7df334495787e7439ad7eb8d45bf010f20 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -8,7 +8,7 @@
     <DefineConstants>CERTIFICATION_RELEASE</DefineConstants>
 
     <!-- Global VECTO Version -->
-    <MainProductVersion>4.0.0</MainProductVersion>
+    <MainProductVersion>4.0.1</MainProductVersion>
     <!-- <VersionSuffix>RC</VersionSuffix> -->
 
     <!-- The following settings are used as default values for ALL projects -->
diff --git a/Directory.Build.targets b/Directory.Build.targets
index ffd8628ee0f1888ec87321f00dd09e718e3ee1d4..3a7efe30f8386fa5fd46305361bdfae86b7a63ff 100644
--- a/Directory.Build.targets
+++ b/Directory.Build.targets
@@ -113,7 +113,7 @@
 		<ItemGroup Condition="'$(Configuration)'=='Deploy'">
 			<!-- All files for the VECTO starters -->
 			<VectoStart Include="$(SolutionDir)Tools\VECTOStart\bin\Deploy\net48\VECTO.exe" />
-			<VectoStart Include="$(SolutionDir)Tools\VECTOMultistepStart\bin\Release\net48\VECTOMultistep.exe" />
+			<VectoStart Include="$(SolutionDir)Tools\VECTOMultistageStart\bin\Release\net48\VECTOMultistep.exe" />
 			<VectoStart Include="$(SolutionDir)Tools\HashingCmdStart\bin\Release\net48\hashingcmd.exe" />
 			<VectoStart Include="$(SolutionDir)Tools\HashingToolStart\bin\Release\net48\HashingTool.exe" />
 			<VectoStart Include="$(SolutionDir)Tools\VECTOConsoleStart\bin\Release\net48\vectocmd.exe" />
@@ -121,7 +121,7 @@
 		<ItemGroup Condition="'$(Configuration)'=='MockupDeploy'">
 			<!-- All files for the VECTO starters -->
 			<VectoStart Include="$(SolutionDir)Tools\VECTOStart\bin\MockupDeploy\net48\VECTO.exe" />
-			<VectoStart Include="$(SolutionDir)Tools\VECTOMultistepStart\bin\Release\net48\VECTOMultistep.exe" />
+			<VectoStart Include="$(SolutionDir)Tools\VECTOMultistageStart\bin\Release\net48\VECTOMultistep.exe" />
 			<VectoStart Include="$(SolutionDir)Tools\HashingCmdStart\bin\Release\net48\hashingcmd.exe" />
 			<VectoStart Include="$(SolutionDir)Tools\HashingToolStart\bin\Release\net48\HashingTool.exe" />
 			<VectoStart Include="$(SolutionDir)Tools\VECTOConsoleStart\bin\Release\net48\vectocmd.exe" />
diff --git a/Documentation/User Manual Source/Release Notes Vecto4.x.pptx b/Documentation/User Manual Source/Release Notes Vecto4.x.pptx
index 37d2d405a6b6fbda0ccaaf99473c525c0ca0a1b4..b2d5649048b5d43f3d655222b3fd5eb984ca9fff 100644
Binary files a/Documentation/User Manual Source/Release Notes Vecto4.x.pptx and b/Documentation/User Manual Source/Release Notes Vecto4.x.pptx differ
diff --git a/Documentation/User Manual/6-changelog/changelog.md b/Documentation/User Manual/6-changelog/changelog.md
index a100bf3ec7fea63b42de6addbe43bad537f393b9..8a0d9751b54fd2e7c8a57cbe49f4891b2ca362db 100644
--- a/Documentation/User Manual/6-changelog/changelog.md	
+++ b/Documentation/User Manual/6-changelog/changelog.md	
@@ -1,5 +1,18 @@
 # Changelog
 
+**VECTO-4.0.1**
+
+***Build 3217 (2023-10-23) OFFICIAL RELEASE***
+
+- Improvements
+    * VTP mode: create zip archive for input and output files
+- Bugfixes
+    * bugfix in CIF for complete(d) buses - do not write PrimaryVehicleSubgroup element
+    * fix hybrid strategy: power comparison
+    * fix exempted vehicles do not work (error message that XML version is not supported)
+    * bugfix in XML schema: remove wrong PS technology entry for lorries
+    * bugfix for conditioning power demand for IHPC vehicles
+
 **VECTO-4.0.0**
 
 ***Build 3211 (2023-10-16) OFFICIAL RELEASE***
diff --git a/Documentation/User Manual/help.html b/Documentation/User Manual/help.html
index 96caf592a10bb114a4b17cc2f20ffe6377440719..23605cf957b3ec0a873b285324ca3f40a47d28d2 100644
--- a/Documentation/User Manual/help.html	
+++ b/Documentation/User Manual/help.html	
@@ -10607,6 +10607,26 @@ stored as LOG_backup.txt.</p>
 </section>
 <section id="changelog" class="level1">
 <h1>Changelog</h1>
+<p><strong>VECTO-4.0.1</strong></p>
+<p><strong><em>Build 3217 (2023-10-23) OFFICIAL
+RELEASE</em></strong></p>
+<ul>
+<li>Improvements
+<ul>
+<li>VTP mode: create zip archive for input and output files</li>
+</ul></li>
+<li>Bugfixes
+<ul>
+<li>bugfix in CIF for complete(d) buses - do not write
+PrimaryVehicleSubgroup element</li>
+<li>fix hybrid strategy: power comparison</li>
+<li>fix exempted vehicles do not work (error message that XML version is
+not supported)</li>
+<li>bugfix in XML schema: remove wrong PS technology entry for
+lorries</li>
+<li>bugfix for conditioning power demand for IHPC vehicles</li>
+</ul></li>
+</ul>
 <p><strong>VECTO-4.0.0</strong></p>
 <p><strong><em>Build 3211 (2023-10-16) OFFICIAL
 RELEASE</em></strong></p>