diff --git a/Directory.Build.props b/Directory.Build.props
index 55c7a8c28fa9c7ac9d18393c1e1eace2a9288533..7863ecbf19f737dbf6e40e47d66b994f331316b9 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -5,10 +5,10 @@
     <!-- <DefineConstants>RELEASE_CANDIDATE</DefineConstants> -->
 
     <!-- For a Release uncomment the following line: -->
-    <!-- <DefineConstants>CERTIFICATION_RELEASE</DefineConstants> -->
+    <DefineConstants>CERTIFICATION_RELEASE</DefineConstants>
 
     <!-- Global VECTO Version -->
-    <MainProductVersion>4.0.2</MainProductVersion>
+    <MainProductVersion>4.0.3</MainProductVersion>
     <!-- <VersionSuffix>RC</VersionSuffix> -->
 
     <!-- The following settings are used as default values for ALL projects -->
diff --git a/Documentation/User Manual/6-changelog/changelog.md b/Documentation/User Manual/6-changelog/changelog.md
index 637a4ac27da38452d0d75ba11b3409f196c8c9b7..1ae3cf8c09ce26304890bf1bd84c12311aa9ddb6 100644
--- a/Documentation/User Manual/6-changelog/changelog.md	
+++ b/Documentation/User Manual/6-changelog/changelog.md	
@@ -1,5 +1,27 @@
 # Changelog
 
+**VECTO-4.0.3**
+
+***Build 3330 (2024-02-13)***
+
+- Bugfixes
+    * CodeEU-293: DistanceRun got an unexpected response
+    * CodeEU-298: Object reference not set to an instance of an object
+    * CodeEU-300: Full drive torque miscalculation
+    * CodeEU-336: Feature: Hashing tool must validate the previous step data for multi-step jobs
+    * CodeEU-337: Electric Citybus - ERROR with "31a-Specific" bus configuration
+    * CodeEU-343: Cannot simulate Primary Vehicle using vectocmd.exe
+    * CodeEU-387: VECTO sometimes fails to properly read Tyre data from primary vehicle xml
+    * CodeEU-427: Vehicle speed resulting to exceeding max gearbox speed
+    * CodeEU-428: Remove speed safety margin for gearbox re-engaging
+    * CodeEU-438: Mismatch XML schema vs Regulation (exempted vehicles)
+    * CodeEU-248: Bus P2 hybrid VECTO error in urban cycle
+    * CodeEU-278: Simulation crash when writing fuel consumption results to reports
+    * CodeEU-284: New error message and failed simulation obtained for P2 hybrid buses
+    * CodeEU-285: PEV vehicle error in routine to write the results with new vecto version  4.0.2.3275
+    * CodeEU-287: PEV_IEPC error message:"can only operate on SI Objects with the same unit"
+    * CodeEU-289: VECTO Simulation Error for bus with validated input data
+
 **VECTO-4.0.2**
 
 ***Build 3275 (2023-12-20)***
diff --git a/Documentation/User Manual/help.html b/Documentation/User Manual/help.html
index df7c636f64a42ee1b1f54aef7b4cba05cd656b09..1edc0dde47dac84bdd1760e5aceebc6aea8294d4 100644
--- a/Documentation/User Manual/help.html	
+++ b/Documentation/User Manual/help.html	
@@ -10623,6 +10623,40 @@ stored as LOG_backup.txt.</p>
 </section>
 <section id="changelog" class="level1">
 <h1>Changelog</h1>
+<p><strong>VECTO-4.0.3</strong></p>
+<p><strong><em>Build 3330 (2024-02-13)</em></strong></p>
+<ul>
+<li>Bugfixes
+<ul>
+<li>CodeEU-293: DistanceRun got an unexpected response</li>
+<li>CodeEU-298: Object reference not set to an instance of an
+object</li>
+<li>CodeEU-300: Full drive torque miscalculation</li>
+<li>CodeEU-336: Feature: Hashing tool must validate the previous step
+data for multi-step jobs</li>
+<li>CodeEU-337: Electric Citybus - ERROR with “31a-Specific” bus
+configuration</li>
+<li>CodeEU-343: Cannot simulate Primary Vehicle using vectocmd.exe</li>
+<li>CodeEU-387: VECTO sometimes fails to properly read Tyre data from
+primary vehicle xml</li>
+<li>CodeEU-427: Vehicle speed resulting to exceeding max gearbox
+speed</li>
+<li>CodeEU-428: Remove speed safety margin for gearbox re-engaging</li>
+<li>CodeEU-438: Mismatch XML schema vs Regulation (exempted
+vehicles)</li>
+<li>CodeEU-248: Bus P2 hybrid VECTO error in urban cycle</li>
+<li>CodeEU-278: Simulation crash when writing fuel consumption results
+to reports</li>
+<li>CodeEU-284: New error message and failed simulation obtained for P2
+hybrid buses</li>
+<li>CodeEU-285: PEV vehicle error in routine to write the results with
+new vecto version 4.0.2.3275</li>
+<li>CodeEU-287: PEV_IEPC error message:“can only operate on SI Objects
+with the same unit”</li>
+<li>CodeEU-289: VECTO Simulation Error for bus with validated input
+data</li>
+</ul></li>
+</ul>
 <p><strong>VECTO-4.0.2</strong></p>
 <p><strong><em>Build 3275 (2023-12-20)</em></strong></p>
 <ul>