diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index fb44ceae..68a3a779 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -4,6 +4,9 @@ ESA CCSDS MO services - Release Notes
 These Release Notes include a short summary of the updates done for each version.
 The different versions and respective updates are the following:
 
+### Version 12.3 (27 August 2025)
+* Updates the MPS spec with the final version from 26/08/2025
+
 ### Version 12.2 (07 August 2025)
 * Removes the pipeline tests for Java 8
 * Adds the new Encoding tests and integrated them with the GitHub pipeline
diff --git a/api-generator/api-generator-maven-plugin/pom.xml b/api-generator/api-generator-maven-plugin/pom.xml
index d8e33963..2660e808 100644
--- a/api-generator/api-generator-maven-plugin/pom.xml
+++ b/api-generator/api-generator-maven-plugin/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>api-generator-maven-plugin</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>maven-plugin</packaging>
   
     <name>ESA MO API Generator - Maven Plugin</name>
diff --git a/api-generator/generator-docs/pom.xml b/api-generator/generator-docs/pom.xml
index c32cda17..57d4f5cd 100644
--- a/api-generator/generator-docs/pom.xml
+++ b/api-generator/generator-docs/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>generator-docs</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
   
     <name>ESA MO API Generator - Documentation</name>
diff --git a/api-generator/generator-interfaces/pom.xml b/api-generator/generator-interfaces/pom.xml
index dc9254e5..c137ab3a 100644
--- a/api-generator/generator-interfaces/pom.xml
+++ b/api-generator/generator-interfaces/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>generator-interfaces</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
   
     <name>ESA MO API Generator - Interfaces</name>
@@ -65,12 +65,12 @@
         <dependency>
             <groupId>int.esa.ccsds.mo</groupId>
             <artifactId>xml-ccsds-mo-prototypes</artifactId>
-            <version>12.2</version>
+            <version>12.3</version>
         </dependency>
         <dependency>
             <groupId>int.esa.ccsds.mo</groupId>
             <artifactId>xml-ccsds-mo-standards</artifactId>
-            <version>12.2</version>
+            <version>12.3</version>
         </dependency>
         <!-- The dependencies below are needed for Java 9 and higher -->
         <dependency>
diff --git a/api-generator/generator-java/pom.xml b/api-generator/generator-java/pom.xml
index 4a347e93..ea6404ed 100644
--- a/api-generator/generator-java/pom.xml
+++ b/api-generator/generator-java/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>generator-java</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO API Generator - Java</name>
diff --git a/api-generator/pom.xml b/api-generator/pom.xml
index dcb8de44..266f405d 100644
--- a/api-generator/pom.xml
+++ b/api-generator/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>api-generator</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>pom</packaging>
     <name>ESA MO API Generator</name>
   
diff --git a/apis/api-area001-v003-mal/pom.xml b/apis/api-area001-v003-mal/pom.xml
index 5ebdffea..cb6c0771 100644
--- a/apis/api-area001-v003-mal/pom.xml
+++ b/apis/api-area001-v003-mal/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <artifactId>api-area001-v003-mal</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO API - MAL v003</name>
diff --git a/apis/api-area002-v001-com/pom.xml b/apis/api-area002-v001-com/pom.xml
index 6c541c8e..66f8dc3e 100644
--- a/apis/api-area002-v001-com/pom.xml
+++ b/apis/api-area002-v001-com/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <artifactId>api-area002-v001-com</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO API - COM v001</name>
diff --git a/apis/api-area003-v001-common/pom.xml b/apis/api-area003-v001-common/pom.xml
index a5205bbc..20360564 100644
--- a/apis/api-area003-v001-common/pom.xml
+++ b/apis/api-area003-v001-common/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <artifactId>api-area003-v001-common</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO API - Common  v001</name>
diff --git a/apis/api-area004-v001-mc/pom.xml b/apis/api-area004-v001-mc/pom.xml
index 128e315d..52f4cf38 100644
--- a/apis/api-area004-v001-mc/pom.xml
+++ b/apis/api-area004-v001-mc/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <artifactId>api-area004-v001-mc</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO API - MC v001</name>
diff --git a/apis/api-area004-v002-mc/pom.xml b/apis/api-area004-v002-mc/pom.xml
index 674ed7f7..d2f30c49 100644
--- a/apis/api-area004-v002-mc/pom.xml
+++ b/apis/api-area004-v002-mc/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <artifactId>api-area004-v002-mc</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO API - MC v002</name>
diff --git a/apis/api-area005-v001-mps/pom.xml b/apis/api-area005-v001-mps/pom.xml
index 3966b156..958131c8 100644
--- a/apis/api-area005-v001-mps/pom.xml
+++ b/apis/api-area005-v001-mps/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <artifactId>api-area005-v001-mps</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO API - MPS v001</name>
diff --git a/apis/api-area009-v001-mpd/pom.xml b/apis/api-area009-v001-mpd/pom.xml
index d5ea9f8c..01fd2c1c 100644
--- a/apis/api-area009-v001-mpd/pom.xml
+++ b/apis/api-area009-v001-mpd/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <artifactId>api-area009-v001-mpd</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO API - MPD v001</name>
diff --git a/apis/pom.xml b/apis/pom.xml
index c05e0c2c..5f8deac4 100644
--- a/apis/pom.xml
+++ b/apis/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>apis</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>pom</packaging>
     <name>ESA MO APIs</name>
 
diff --git a/encodings/encoding-binary/pom.xml b/encodings/encoding-binary/pom.xml
index 4475ec0d..1ee34ed4 100644
--- a/encodings/encoding-binary/pom.xml
+++ b/encodings/encoding-binary/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>encoding-binary</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO Encoder - Binary</name>
     <description>A simple Java binary encoder for the CCSDS MAL</description>
diff --git a/encodings/encoding-string/pom.xml b/encodings/encoding-string/pom.xml
index 52da6a96..c61d1e01 100644
--- a/encodings/encoding-string/pom.xml
+++ b/encodings/encoding-string/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>encoding-string</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO Encoder - String</name>
     <description>A simple Java String based encoder for the CCSDS MAL</description>
diff --git a/encodings/encoding-xml/pom.xml b/encodings/encoding-xml/pom.xml
index 767b50b6..2081ac89 100644
--- a/encodings/encoding-xml/pom.xml
+++ b/encodings/encoding-xml/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>encoding-xml</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO Encoder - XML</name>
     <description>A simple Java String based encoder for the CCSDS MAL</description>
diff --git a/encodings/pom.xml b/encodings/pom.xml
index 87d145e5..a5ff11fc 100644
--- a/encodings/pom.xml
+++ b/encodings/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>encodings</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>pom</packaging>
     <name>ESA MO Encodings</name>
 
diff --git a/mal-impl/pom.xml b/mal-impl/pom.xml
index 62ffb5b9..f86ddd33 100644
--- a/mal-impl/pom.xml
+++ b/mal-impl/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>mal-impl</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO MAL Java Implementation</name>
     <description>The ESA implementation of the CCSDS MAL in Java</description>
diff --git a/parent/pom.xml b/parent/pom.xml
index 4d47bf19..ac404f8a 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -17,7 +17,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>int.esa.ccsds.mo</groupId>
     <artifactId>parent</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>pom</packaging>
   
     <name>ESA MO POM</name>
@@ -73,7 +73,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <esa.mo.version>12.2</esa.mo.version>
+        <esa.mo.version>12.3</esa.mo.version>
         <ccsds.specification.version>${esa.mo.version}</ccsds.specification.version>
         <extra.specification.version>${esa.mo.version}</extra.specification.version>
     
diff --git a/pom.xml b/pom.xml
index 24824443..163e8b58 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>parent/pom.xml</relativePath>
     </parent>
   
diff --git a/services-impl/pom.xml b/services-impl/pom.xml
index 777b74ed..60c04609 100644
--- a/services-impl/pom.xml
+++ b/services-impl/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>services-impl</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>pom</packaging>
     <name>ESA MO Services Implementations</name>
 
diff --git a/services-impl/services-area003-v001-common/pom.xml b/services-impl/services-area003-v001-common/pom.xml
index 35d549e8..66e26dd7 100644
--- a/services-impl/services-area003-v001-common/pom.xml
+++ b/services-impl/services-area003-v001-common/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>services-area003-v001-common</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO Services - Common Services</name>
diff --git a/services-impl/services-area004-v002-mc/pom.xml b/services-impl/services-area004-v002-mc/pom.xml
index 491365d9..328b3323 100644
--- a/services-impl/services-area004-v002-mc/pom.xml
+++ b/services-impl/services-area004-v002-mc/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>services-area004-v001-mc</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO Services - MC Services</name>
diff --git a/services-impl/services-area009-v001-mpd/pom.xml b/services-impl/services-area009-v001-mpd/pom.xml
index 979a5a26..1aaa51f0 100644
--- a/services-impl/services-area009-v001-mpd/pom.xml
+++ b/services-impl/services-area009-v001-mpd/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>services-area009-v001-mpd</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO Services - MPD Services</name>
diff --git a/testbeds/pom.xml b/testbeds/pom.xml
index ab6d8dd0..9cba6834 100644
--- a/testbeds/pom.xml
+++ b/testbeds/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>testbeds</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>pom</packaging>
     <name>ESA CCSDS Testbed reactor build</name>
 
diff --git a/testbeds/test-apis/pom.xml b/testbeds/test-apis/pom.xml
index bd1e12a1..d2d38e97 100644
--- a/testbeds/test-apis/pom.xml
+++ b/testbeds/test-apis/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <artifactId>test-apis</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>pom</packaging>
     <name>CCSDS MOIMS MO Testbed APIs</name>
 
diff --git a/testbeds/test-apis/test-api-com/pom.xml b/testbeds/test-apis/test-api-com/pom.xml
index 2e0f9574..bc68e51b 100644
--- a/testbeds/test-apis/test-api-com/pom.xml
+++ b/testbeds/test-apis/test-api-com/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../testbed-pom/pom.xml</relativePath>
     </parent>
 
     <artifactId>api-com-test</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>CCSDS MOIMS MO Testbed API - COM</name>
diff --git a/testbeds/test-apis/test-api-mal/pom.xml b/testbeds/test-apis/test-api-mal/pom.xml
index 976263a2..f05ff9e4 100644
--- a/testbeds/test-apis/test-api-mal/pom.xml
+++ b/testbeds/test-apis/test-api-mal/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <artifactId>api-mal-test</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>CCSDS MOIMS MO Testbed API - MAL</name>
diff --git a/testbeds/test-apis/test-api-mc/pom.xml b/testbeds/test-apis/test-api-mc/pom.xml
index 891eca2a..36e0922f 100644
--- a/testbeds/test-apis/test-api-mc/pom.xml
+++ b/testbeds/test-apis/test-api-mc/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../testbed-pom/pom.xml</relativePath>
     </parent>
 
     <artifactId>api-mc-test</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>CCSDS MOIMS MO Testbed API - MC</name>
diff --git a/testbeds/testbed-com-framework/pom.xml b/testbeds/testbed-com-framework/pom.xml
index 294dbf21..15af671a 100644
--- a/testbeds/testbed-com-framework/pom.xml
+++ b/testbeds/testbed-com-framework/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <artifactId>testbed-com-framework</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed COM - Harness</name>
   
     <organization>
diff --git a/testbeds/testbed-com-provider-esa/pom.xml b/testbeds/testbed-com-provider-esa/pom.xml
index 773dd613..b62f050d 100644
--- a/testbeds/testbed-com-provider-esa/pom.xml
+++ b/testbeds/testbed-com-provider-esa/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <artifactId>testbed-com-provider-esa</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
   
     <name>CCSDS MOIMS MO Testbed COM - Provider Impl</name>
diff --git a/testbeds/testbed-com/pom.xml b/testbeds/testbed-com/pom.xml
index ea5a3cdb..e592dc66 100644
--- a/testbeds/testbed-com/pom.xml
+++ b/testbeds/testbed-com/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <artifactId>testbed-com</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed for COM</name>
 
     <organization>
diff --git a/testbeds/testbed-encoders/pom.xml b/testbeds/testbed-encoders/pom.xml
index ea84225b..6056a9b2 100644
--- a/testbeds/testbed-encoders/pom.xml
+++ b/testbeds/testbed-encoders/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <artifactId>testbed-encoders</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed Encoders</name>
 
     <organization>
diff --git a/testbeds/testbed-mal/pom.xml b/testbeds/testbed-mal/pom.xml
index d0d23f94..788d0889 100644
--- a/testbeds/testbed-mal/pom.xml
+++ b/testbeds/testbed-mal/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <artifactId>testbed-mal</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed for MAL</name>
 
     <organization>
diff --git a/testbeds/testbed-malspp-framework/pom.xml b/testbeds/testbed-malspp-framework/pom.xml
index 55edcff2..c717caf5 100644
--- a/testbeds/testbed-malspp-framework/pom.xml
+++ b/testbeds/testbed-malspp-framework/pom.xml
@@ -40,14 +40,14 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <groupId>int.esa.ccsds.mo</groupId>
     <artifactId>testbed-malspp-framework</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed Framework for MAL/SPP Binding </name>
 
     <organization>
diff --git a/testbeds/testbed-malspp/pom.xml b/testbeds/testbed-malspp/pom.xml
index 81cf23ed..8fb87b7c 100644
--- a/testbeds/testbed-malspp/pom.xml
+++ b/testbeds/testbed-malspp/pom.xml
@@ -40,14 +40,14 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <groupId>int.esa.ccsds.mo</groupId>
     <artifactId>testbed-malspp</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed for MAL/SPP Binding</name>
 
     <organization>
diff --git a/testbeds/testbed-mc/pom.xml b/testbeds/testbed-mc/pom.xml
index 9fdc5544..2985f469 100644
--- a/testbeds/testbed-mc/pom.xml
+++ b/testbeds/testbed-mc/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <artifactId>testbed-mc</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed MC</name>
 
     <organization>
diff --git a/testbeds/testbed-mpd/pom.xml b/testbeds/testbed-mpd/pom.xml
index 9a781a90..fe4595ca 100644
--- a/testbeds/testbed-mpd/pom.xml
+++ b/testbeds/testbed-mpd/pom.xml
@@ -19,14 +19,14 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <groupId>int.esa.ccsds.mo</groupId>
     <artifactId>testbed-mpd</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed MPD</name>
 
     <organization>
diff --git a/testbeds/testbed-pom/pom.xml b/testbeds/testbed-pom/pom.xml
index 65841c63..e18481b5 100644
--- a/testbeds/testbed-pom/pom.xml
+++ b/testbeds/testbed-pom/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>testbed-pom</artifactId>
     <packaging>pom</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed POM</name>
 
     <organization>
diff --git a/testbeds/testbed-util-spp/pom.xml b/testbeds/testbed-util-spp/pom.xml
index 072dfe3d..974f6c78 100644
--- a/testbeds/testbed-util-spp/pom.xml
+++ b/testbeds/testbed-util-spp/pom.xml
@@ -40,14 +40,14 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <groupId>int.esa.ccsds.mo</groupId>
     <artifactId>testbed-util-spp</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed utilities for the Space Packet Protocol</name>
 
     <organization>
diff --git a/testbeds/testbed-util/pom.xml b/testbeds/testbed-util/pom.xml
index 263949ff..87109034 100644
--- a/testbeds/testbed-util/pom.xml
+++ b/testbeds/testbed-util/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>testbed-pom</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../testbed-pom/pom.xml</relativePath>
     </parent>
   
     <artifactId>testbed-util</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
     <name>CCSDS MOIMS MO Testbed utilities</name>
 
     <organization>
diff --git a/testbeds/xml-tests/pom.xml b/testbeds/xml-tests/pom.xml
index 0b4525e1..493fd4ba 100644
--- a/testbeds/xml-tests/pom.xml
+++ b/testbeds/xml-tests/pom.xml
@@ -18,7 +18,7 @@
 
     <groupId>int.esa.ccsds.mo</groupId>
     <artifactId>xml-tests</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>CCSDS MOIMS MO Testbed XML</name>
diff --git a/tooling/basic-demo/pom.xml b/tooling/basic-demo/pom.xml
index 583ca70e..62b60027 100644
--- a/tooling/basic-demo/pom.xml
+++ b/tooling/basic-demo/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>basic-demo</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO Java Demo</name>
     <description>A Demo Java application for the CCSDS MAL</description>
diff --git a/tooling/mo-navigator/pom.xml b/tooling/mo-navigator/pom.xml
index 7f643245..c82cf80e 100644
--- a/tooling/mo-navigator/pom.xml
+++ b/tooling/mo-navigator/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <groupId>int.esa.ccsds.mo</groupId>
     <artifactId>mo-navigator</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
     
     <name>ESA MO Navigator</name>
diff --git a/tooling/pom.xml b/tooling/pom.xml
index d48763ad..88b26961 100644
--- a/tooling/pom.xml
+++ b/tooling/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>tooling</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>pom</packaging>
     <name>ESA MO Tooling</name>
 
diff --git a/tooling/simple-mo-consumer/pom.xml b/tooling/simple-mo-consumer/pom.xml
index 39ddb1cf..df23a052 100644
--- a/tooling/simple-mo-consumer/pom.xml
+++ b/tooling/simple-mo-consumer/pom.xml
@@ -7,12 +7,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>simple-mo-consumer</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
     
     <name>Simple MO Consumer</name>
diff --git a/tooling/simple-mo-provider/pom.xml b/tooling/simple-mo-provider/pom.xml
index 58bf6b65..47b87c01 100644
--- a/tooling/simple-mo-provider/pom.xml
+++ b/tooling/simple-mo-provider/pom.xml
@@ -7,12 +7,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>simple-mo-provider</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
     
     <name>Simple MO Provider</name>
diff --git a/tooling/transport-bridge/pom.xml b/tooling/transport-bridge/pom.xml
index f1f9df5c..5b0534f9 100644
--- a/tooling/transport-bridge/pom.xml
+++ b/tooling/transport-bridge/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>transport-bridge</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO Transport Bridge</name>
diff --git a/transports/pom.xml b/transports/pom.xml
index 7c82c2be..f48c33e6 100644
--- a/transports/pom.xml
+++ b/transports/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>transports</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>pom</packaging>
     <name>ESA MO Transports</name>
 
diff --git a/transports/transport-file/pom.xml b/transports/transport-file/pom.xml
index 82b02f27..57c53d01 100644
--- a/transports/transport-file/pom.xml
+++ b/transports/transport-file/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>transport-file</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO Transport - File</name>
     <description>A Java File based transport for CCSDS MAL</description>
diff --git a/transports/transport-generic/pom.xml b/transports/transport-generic/pom.xml
index ba9cc44a..9d0d25cc 100644
--- a/transports/transport-generic/pom.xml
+++ b/transports/transport-generic/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>transport-generic</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO Transport - Generic Framework</name>
     <description>A base Java framework for CCSDS MAL transports</description>
diff --git a/transports/transport-http/pom.xml b/transports/transport-http/pom.xml
index 4411cbbe..8ef63781 100644
--- a/transports/transport-http/pom.xml
+++ b/transports/transport-http/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <artifactId>transport-http</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO Transport - HTTP</name>
     <description>A Java HTTP transport for CCSDS MAL</description>
diff --git a/transports/transport-rmi/pom.xml b/transports/transport-rmi/pom.xml
index a616472d..5c391c50 100644
--- a/transports/transport-rmi/pom.xml
+++ b/transports/transport-rmi/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>transport-rmi</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO Transport - RMI</name>
     <description>A Java RMI transport for CCSDS MAL</description>
diff --git a/transports/transport-spp/pom.xml b/transports/transport-spp/pom.xml
index d501cab5..659c5549 100644
--- a/transports/transport-spp/pom.xml
+++ b/transports/transport-spp/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>transport-spp</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO Transport - SPP</name>
     <description>A Java SPP transport for CCSDS MAL</description>
diff --git a/transports/transport-tcpip/pom.xml b/transports/transport-tcpip/pom.xml
index 48119735..032c36d3 100644
--- a/transports/transport-tcpip/pom.xml
+++ b/transports/transport-tcpip/pom.xml
@@ -19,12 +19,12 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
   
     <artifactId>transport-tcpip</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO Transport - TCP/IP</name>
diff --git a/transports/transport-zmtp/pom.xml b/transports/transport-zmtp/pom.xml
index 3b0ae3cc..db0ac496 100644
--- a/transports/transport-zmtp/pom.xml
+++ b/transports/transport-zmtp/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <artifactId>transport-zmtp</artifactId>
     <packaging>jar</packaging>
-    <version>12.2</version>
+    <version>12.3</version>
 
     <name>ESA MO Transport - ZMTP</name>
     <description>A Java ZeroMQ Transport Protocol binding for CCSDS MAL</description>
diff --git a/xml-service-specifications/pom.xml b/xml-service-specifications/pom.xml
index fafadb90..04fb93b7 100644
--- a/xml-service-specifications/pom.xml
+++ b/xml-service-specifications/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../parent/pom.xml</relativePath>
     </parent>
 
     <groupId>int.esa.ccsds.mo</groupId>
     <artifactId>xml-service-specifications</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>pom</packaging>
     <name>ESA MO XML specifications</name>
 
diff --git a/xml-service-specifications/xml-ccsds-mo-prototypes/pom.xml b/xml-service-specifications/xml-ccsds-mo-prototypes/pom.xml
index dae007c0..a6ef07ab 100644
--- a/xml-service-specifications/xml-ccsds-mo-prototypes/pom.xml
+++ b/xml-service-specifications/xml-ccsds-mo-prototypes/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <groupId>int.esa.ccsds.mo</groupId>
     <artifactId>xml-ccsds-mo-prototypes</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
   
     <name>ESA MO XML specifications - MO Prototypes</name>
diff --git a/xml-service-specifications/xml-ccsds-mo-prototypes/src/main/resources/xml/area005-v001-Mission-Planning-and-Scheduling.xml b/xml-service-specifications/xml-ccsds-mo-prototypes/src/main/resources/xml/area005-v001-Mission-Planning-and-Scheduling.xml
index 7706579f..c7f67694 100644
--- a/xml-service-specifications/xml-ccsds-mo-prototypes/src/main/resources/xml/area005-v001-Mission-Planning-and-Scheduling.xml
+++ b/xml-service-specifications/xml-ccsds-mo-prototypes/src/main/resources/xml/area005-v001-Mission-Planning-and-Scheduling.xml
@@ -2,7 +2,7 @@
 <!--
   Copyright European Space Agency, 2025
 
-  Generated from 529x1r1_RID_closeout_v3 05/08/2025
+  Generated from 529x1r1_RID_closeout_v3 26/08/2025
 -->
 <mal:specification
   xmlns:mal = "http://www.ccsds.org/schema/ServiceSchema-v003"
@@ -2090,6 +2090,9 @@ Only nullable in the context of an updateActivity operation: the timestamp must
         <mal:field name="argSpecs" canBeNull="true" comment="Set of argument specifications for each argument definition contained in the referenced activity definition.  These supply a value for each argument, or an expression to enable the value to be derived.">
           <mal:type area="MPS" list="true" objectRef="false" name="ArgSpec"/>
         </mal:field>
+        <mal:field name="user" canBeNull="false" comment="The User ID for the person or organization inserting the activity into the Plan.">
+          <mal:type area="MPS" list="false" objectRef="true" name="PlanningUser"/>
+        </mal:field>
         <mal:field name="constraints" canBeNull="true" comment="A single constraint or a constraint node that may contain multiple constraints, specific to the ActivityInstance to be created.">
           <mal:type area="MPS" list="false" objectRef="false" name="Constraint"/>
         </mal:field>
diff --git a/xml-service-specifications/xml-ccsds-mo-standards/pom.xml b/xml-service-specifications/xml-ccsds-mo-standards/pom.xml
index b9c62c4f..3fff9d1c 100644
--- a/xml-service-specifications/xml-ccsds-mo-standards/pom.xml
+++ b/xml-service-specifications/xml-ccsds-mo-standards/pom.xml
@@ -19,13 +19,13 @@
     <parent>
         <groupId>int.esa.ccsds.mo</groupId>
         <artifactId>parent</artifactId>
-        <version>12.2</version>
+        <version>12.3</version>
         <relativePath>../../parent/pom.xml</relativePath>
     </parent>
 
     <groupId>int.esa.ccsds.mo</groupId>
     <artifactId>xml-ccsds-mo-standards</artifactId>
-    <version>12.2</version>
+    <version>12.3</version>
     <packaging>jar</packaging>
 
     <name>ESA MO XML specifications - MO Standards</name>