diff --git a/README.md b/README.md
index cf23a5db95..6a646219bd 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # 52°North SOS [![OpenHUB](https://www.openhub.net/p/SensorObservationService/widgets/project_thin_badge.gif)](https://www.openhub.net/p/SensorObservationService)
-README file for the 52°North Sensor Observation Service (SOS) version 4.4.x
+README file for the 52°North Sensor Observation Service (SOS) version 4.4-M2
 
 This is the repository of the [52°North Sensor Observation Service (SOS)][1].
 
diff --git a/bindings/exi/pom.xml b/bindings/exi/pom.xml
index 1c62a9bf3c..5934b0ada2 100644
--- a/bindings/exi/pom.xml
+++ b/bindings/exi/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>bindings</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>binding-exi</artifactId>
     <name>52°North SOS - EXI Efficient XML Interchange Binding</name>
diff --git a/bindings/json/pom.xml b/bindings/json/pom.xml
index 8ae7237e39..c2bbcab77b 100644
--- a/bindings/json/pom.xml
+++ b/bindings/json/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>bindings</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>binding-json</artifactId>
     <name>52°North SOS - JSON Binding</name>
diff --git a/bindings/kvp/pom.xml b/bindings/kvp/pom.xml
index 7a9197bd99..21868c4fdd 100644
--- a/bindings/kvp/pom.xml
+++ b/bindings/kvp/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>bindings</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>binding-kvp</artifactId>
diff --git a/bindings/pom.xml b/bindings/pom.xml
index 0f0035d051..cc1c9d1cc4 100644
--- a/bindings/pom.xml
+++ b/bindings/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>52n-sos</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>bindings</artifactId>
     <packaging>pom</packaging>
diff --git a/bindings/pox/pom.xml b/bindings/pox/pom.xml
index 2ef6967b13..44c2307828 100644
--- a/bindings/pox/pom.xml
+++ b/bindings/pox/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>bindings</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>binding-pox</artifactId>
diff --git a/bindings/rest/code/pom.xml b/bindings/rest/code/pom.xml
index e0625b1624..b956c06062 100644
--- a/bindings/rest/code/pom.xml
+++ b/bindings/rest/code/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>rest</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>rest-code</artifactId>
     <name>52°North SOS - Extension REST Binding - Core</name>
diff --git a/bindings/rest/pom.xml b/bindings/rest/pom.xml
index 934c65e216..b5703d404b 100644
--- a/bindings/rest/pom.xml
+++ b/bindings/rest/pom.xml
@@ -3,12 +3,12 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>bindings</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>rest</artifactId>
     <packaging>pom</packaging>
-    <version>4.4.0-SNAPSHOT</version>
+    <version>4.4.0-M2</version>
     <name>52°North SOS - Extension REST Binding</name>
     <description>RESTful binding for the 52°North SOS</description>
     <url>http://52north.org/communities/sensorweb/sosREST/</url>
diff --git a/bindings/rest/xml/pom.xml b/bindings/rest/xml/pom.xml
index b8dc43f91e..82a12cc230 100644
--- a/bindings/rest/xml/pom.xml
+++ b/bindings/rest/xml/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>rest</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>rest-xml</artifactId>
     <name>52°North SOS - Extension REST Binding - XML</name>
diff --git a/bindings/soap/pom.xml b/bindings/soap/pom.xml
index f65d193fc3..9a432f120b 100644
--- a/bindings/soap/pom.xml
+++ b/bindings/soap/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>bindings</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>binding-soap</artifactId>
diff --git a/coding/exi/pom.xml b/coding/exi/pom.xml
index 8c07770801..b8fcaa2ad5 100644
--- a/coding/exi/pom.xml
+++ b/coding/exi/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>coding</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-exi</artifactId>
diff --git a/coding/json-common/pom.xml b/coding/json-common/pom.xml
index 3cddae786b..bcb49ea3eb 100644
--- a/coding/json-common/pom.xml
+++ b/coding/json-common/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>coding</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-json-common</artifactId>
diff --git a/coding/json/pom.xml b/coding/json/pom.xml
index 9a50961219..8b9f740a01 100644
--- a/coding/json/pom.xml
+++ b/coding/json/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>coding</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-json</artifactId>
diff --git a/coding/netcdf/api/pom.xml b/coding/netcdf/api/pom.xml
index bc4ebbfa25..dc50826f7d 100644
--- a/coding/netcdf/api/pom.xml
+++ b/coding/netcdf/api/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>netcdf</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>api-netcdf</artifactId>
diff --git a/coding/netcdf/coding/pom.xml b/coding/netcdf/coding/pom.xml
index 7e9adeea99..1be4dc179f 100644
--- a/coding/netcdf/coding/pom.xml
+++ b/coding/netcdf/coding/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>netcdf</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-netcdf</artifactId>
diff --git a/coding/netcdf/oceansites/pom.xml b/coding/netcdf/oceansites/pom.xml
index 8f65888ba1..c466f918e0 100644
--- a/coding/netcdf/oceansites/pom.xml
+++ b/coding/netcdf/oceansites/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>netcdf</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-oceansites</artifactId>
diff --git a/coding/netcdf/pom.xml b/coding/netcdf/pom.xml
index 6545f0a847..4b874f17f4 100644
--- a/coding/netcdf/pom.xml
+++ b/coding/netcdf/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>coding</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>netcdf</artifactId>
diff --git a/coding/ows-v110/pom.xml b/coding/ows-v110/pom.xml
index 379c5818d0..11434cca63 100644
--- a/coding/ows-v110/pom.xml
+++ b/coding/ows-v110/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>coding</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-ows-v110</artifactId>
diff --git a/coding/pom.xml b/coding/pom.xml
index f82d5366e5..828bb13bbd 100644
--- a/coding/pom.xml
+++ b/coding/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>52n-sos</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>coding</artifactId>
     <packaging>pom</packaging>
diff --git a/coding/sensorML-v101/pom.xml b/coding/sensorML-v101/pom.xml
index 45b3f9b7c3..e6c0b926cf 100644
--- a/coding/sensorML-v101/pom.xml
+++ b/coding/sensorML-v101/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>coding</artifactId>
-		<version>4.4.0-SNAPSHOT</version>
+		<version>4.4.0-M2</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>coding-sensorML-v101</artifactId>
diff --git a/coding/sensorML-v20/pom.xml b/coding/sensorML-v20/pom.xml
index 06e84c4298..939222dcb8 100644
--- a/coding/sensorML-v20/pom.xml
+++ b/coding/sensorML-v20/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>coding</artifactId>
-		<version>4.4.0-SNAPSHOT</version>
+		<version>4.4.0-M2</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>coding-sensorML-v20</artifactId>
diff --git a/coding/sensorML/pom.xml b/coding/sensorML/pom.xml
index 7a558a177a..b888931b90 100644
--- a/coding/sensorML/pom.xml
+++ b/coding/sensorML/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>coding</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>coding-sensorML</artifactId>
     <packaging>jar</packaging>
diff --git a/coding/sos-v100/pom.xml b/coding/sos-v100/pom.xml
index 3920b9a454..60bd3138f6 100644
--- a/coding/sos-v100/pom.xml
+++ b/coding/sos-v100/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>coding</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-sos-v100</artifactId>
diff --git a/coding/sos-v20/pom.xml b/coding/sos-v20/pom.xml
index d2bd69c63a..8bc89d9daa 100644
--- a/coding/sos-v20/pom.xml
+++ b/coding/sos-v20/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>coding</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-sos-v20</artifactId>
diff --git a/coding/wml-v20/pom.xml b/coding/wml-v20/pom.xml
index ecde4c809e..4e393f7398 100644
--- a/coding/wml-v20/pom.xml
+++ b/coding/wml-v20/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>coding</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-wml-v20</artifactId>
diff --git a/converter/identifier-modifier/abstract-identifier/pom.xml b/converter/identifier-modifier/abstract-identifier/pom.xml
index fb123d1c3c..6a62126298 100644
--- a/converter/identifier-modifier/abstract-identifier/pom.xml
+++ b/converter/identifier-modifier/abstract-identifier/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>identifier-modifier</artifactId>
-         <version>4.4.0-SNAPSHOT</version>
+         <version>4.4.0-M2</version>
     </parent>
     <artifactId>abstract-identifier</artifactId>
     <packaging>jar</packaging>
diff --git a/converter/identifier-modifier/flexible-identifier/pom.xml b/converter/identifier-modifier/flexible-identifier/pom.xml
index e4ae28bb59..20df8357a4 100644
--- a/converter/identifier-modifier/flexible-identifier/pom.xml
+++ b/converter/identifier-modifier/flexible-identifier/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>identifier-modifier</artifactId>
-		  <version>4.4.0-SNAPSHOT</version>
+		  <version>4.4.0-M2</version>
 	</parent>
 	<artifactId>flexible-identifier</artifactId>
 	<packaging>jar</packaging>
diff --git a/converter/identifier-modifier/pom.xml b/converter/identifier-modifier/pom.xml
index 85941e5381..9cf939b298 100644
--- a/converter/identifier-modifier/pom.xml
+++ b/converter/identifier-modifier/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>converter</artifactId>
-         <version>4.4.0-SNAPSHOT</version>
+         <version>4.4.0-M2</version>
     </parent>
     <artifactId>identifier-modifier</artifactId>
     <packaging>pom</packaging>
diff --git a/converter/identifier-modifier/prefixed-identifier/pom.xml b/converter/identifier-modifier/prefixed-identifier/pom.xml
index ad0cc59da1..186f39302f 100644
--- a/converter/identifier-modifier/prefixed-identifier/pom.xml
+++ b/converter/identifier-modifier/prefixed-identifier/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>identifier-modifier</artifactId>
-		  <version>4.4.0-SNAPSHOT</version>
+		  <version>4.4.0-M2</version>
 	</parent>
 	<artifactId>prefixed-identifier</artifactId>
 	<packaging>jar</packaging>
diff --git a/converter/pom.xml b/converter/pom.xml
index e1296bbc09..f867186b01 100644
--- a/converter/pom.xml
+++ b/converter/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>52n-sos</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>converter</artifactId>
     <packaging>pom</packaging>
diff --git a/converter/split-and-merge/pom.xml b/converter/split-and-merge/pom.xml
index 368f7f1a31..24dcc07682 100644
--- a/converter/split-and-merge/pom.xml
+++ b/converter/split-and-merge/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>converter</artifactId>
-		  <version>4.4.0-SNAPSHOT</version>
+		  <version>4.4.0-M2</version>
 	</parent>
 	<artifactId>split-and-merge</artifactId>
 	<packaging>jar</packaging>
diff --git a/converter/transformation/coordinate/pom.xml b/converter/transformation/coordinate/pom.xml
index 77b937501c..3a6b633a49 100644
--- a/converter/transformation/coordinate/pom.xml
+++ b/converter/transformation/coordinate/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>transformation</artifactId>
-		<version>4.4.0-SNAPSHOT</version>
+		<version>4.4.0-M2</version>
 	</parent>
 	<artifactId>request-response-coordinate-transformer</artifactId>
 	<packaging>jar</packaging>
diff --git a/converter/transformation/pom.xml b/converter/transformation/pom.xml
index 85e7d2ce9b..26a057fdfe 100644
--- a/converter/transformation/pom.xml
+++ b/converter/transformation/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>converter</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>transformation</artifactId>
     <packaging>pom</packaging>
diff --git a/core/admin/pom.xml b/core/admin/pom.xml
index dab1e28f86..e318321a01 100644
--- a/core/admin/pom.xml
+++ b/core/admin/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>core</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>admin</artifactId>
     <name>52°North SOS - Administrator Service Operator</name>
diff --git a/core/api/pom.xml b/core/api/pom.xml
index ccfc136ef7..b237d256c5 100644
--- a/core/api/pom.xml
+++ b/core/api/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>core</artifactId>
-		<version>4.4.0-SNAPSHOT</version>
+		<version>4.4.0-M2</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>api</artifactId>
diff --git a/core/cache/pom.xml b/core/cache/pom.xml
index a29f4e1e0d..0f62ade499 100644
--- a/core/cache/pom.xml
+++ b/core/cache/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>core</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>cache</artifactId>
     <name>52°North SOS - Cache</name>
diff --git a/core/gc-dao/pom.xml b/core/gc-dao/pom.xml
index 33d7bb9c7d..91bc0c7fe0 100644
--- a/core/gc-dao/pom.xml
+++ b/core/gc-dao/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>core</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>gc-dao</artifactId>
diff --git a/core/pom.xml b/core/pom.xml
index 7bfc84c191..9d9d11f09c 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>52n-sos</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>core</artifactId>
     <packaging>pom</packaging>
diff --git a/core/profile/coding/pom.xml b/core/profile/coding/pom.xml
index 7ca9019bde..256576f443 100644
--- a/core/profile/coding/pom.xml
+++ b/core/profile/coding/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>profile</artifactId>
         <groupId>org.n52.sensorweb.sos</groupId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>profile-coding</artifactId>
diff --git a/core/profile/pom.xml b/core/profile/pom.xml
index 3f771a1003..4362668802 100644
--- a/core/profile/pom.xml
+++ b/core/profile/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>core</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>profile</artifactId>
diff --git a/core/profile/xml/pom.xml b/core/profile/xml/pom.xml
index 6de772c077..9b19f78d15 100644
--- a/core/profile/xml/pom.xml
+++ b/core/profile/xml/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>profile</artifactId>
         <groupId>org.n52.sensorweb.sos</groupId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>profile-xml</artifactId>
diff --git a/core/sqlite-config/pom.xml b/core/sqlite-config/pom.xml
index 148e85361b..e44fba72ae 100644
--- a/core/sqlite-config/pom.xml
+++ b/core/sqlite-config/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>core</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>sqlite-config</artifactId>
     <name>52°North SOS - SQLite Configuration</name>
diff --git a/core/test/pom.xml b/core/test/pom.xml
index deb84cb77b..2f4138a792 100644
--- a/core/test/pom.xml
+++ b/core/test/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>core</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>test</artifactId>
     <name>52°North SOS - Test Module</name>
diff --git a/extensions/aqd/api/pom.xml b/extensions/aqd/api/pom.xml
index 7152fd9e28..329e6c52aa 100644
--- a/extensions/aqd/api/pom.xml
+++ b/extensions/aqd/api/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>aqd</artifactId>
-		  <version>4.4.0-SNAPSHOT</version>
+		  <version>4.4.0-M2</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>api-aqd-v10</artifactId>
diff --git a/extensions/aqd/coding/aqd-v10/pom.xml b/extensions/aqd/coding/aqd-v10/pom.xml
index 21a265e654..b8efe6362a 100644
--- a/extensions/aqd/coding/aqd-v10/pom.xml
+++ b/extensions/aqd/coding/aqd-v10/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>coding-aqd</artifactId>
-         <version>4.4.0-SNAPSHOT</version>
+         <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-aqd-v10</artifactId>
diff --git a/extensions/aqd/coding/pom.xml b/extensions/aqd/coding/pom.xml
index bfa124df22..1ba08e2aaf 100644
--- a/extensions/aqd/coding/pom.xml
+++ b/extensions/aqd/coding/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>aqd</artifactId>
-         <version>4.4.0-SNAPSHOT</version>
+         <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>coding-aqd</artifactId>
diff --git a/extensions/aqd/ereporting-identifier/pom.xml b/extensions/aqd/ereporting-identifier/pom.xml
index 16c8661f3c..a467261b6c 100644
--- a/extensions/aqd/ereporting-identifier/pom.xml
+++ b/extensions/aqd/ereporting-identifier/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>aqd</artifactId>
-		  <version>4.4.0-SNAPSHOT</version>
+		  <version>4.4.0-M2</version>
 	</parent>
 	<artifactId>ereporting-identifier</artifactId>
 	<packaging>jar</packaging>
diff --git a/extensions/aqd/ereporting/pom.xml b/extensions/aqd/ereporting/pom.xml
index d4ddaa82aa..4093c8f607 100644
--- a/extensions/aqd/ereporting/pom.xml
+++ b/extensions/aqd/ereporting/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>aqd</artifactId>
-         <version>4.4.0-SNAPSHOT</version>
+         <version>4.4.0-M2</version>
     </parent>
     <artifactId>ereporting</artifactId>
     <packaging>jar</packaging>
diff --git a/extensions/aqd/operation/pom.xml b/extensions/aqd/operation/pom.xml
index ba07798f3c..782221e16f 100644
--- a/extensions/aqd/operation/pom.xml
+++ b/extensions/aqd/operation/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>aqd</artifactId>
-		  <version>4.4.0-SNAPSHOT</version>
+		  <version>4.4.0-M2</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>core-aqd-v10</artifactId>
diff --git a/extensions/aqd/pom.xml b/extensions/aqd/pom.xml
index 97b0cb10e6..c40cec9724 100644
--- a/extensions/aqd/pom.xml
+++ b/extensions/aqd/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>extensions</artifactId>
-         <version>4.4.0-SNAPSHOT</version>
+         <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>aqd</artifactId>
diff --git a/extensions/aqd/split-and-merge/pom.xml b/extensions/aqd/split-and-merge/pom.xml
index 81d65754db..8b2d1f576e 100644
--- a/extensions/aqd/split-and-merge/pom.xml
+++ b/extensions/aqd/split-and-merge/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>aqd</artifactId>
-		  <version>4.4.0-SNAPSHOT</version>
+		  <version>4.4.0-M2</version>
 	</parent>
 	<artifactId>aqd-split-and-merge</artifactId>
 	<packaging>jar</packaging>
diff --git a/extensions/do/core/pom.xml b/extensions/do/core/pom.xml
index 62d0faa94c..94be8a4d2a 100644
--- a/extensions/do/core/pom.xml
+++ b/extensions/do/core/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>do</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>do-core</artifactId>
diff --git a/extensions/do/hibernate/pom.xml b/extensions/do/hibernate/pom.xml
index 785f606585..c13c799b76 100644
--- a/extensions/do/hibernate/pom.xml
+++ b/extensions/do/hibernate/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>do</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>do-hibernate</artifactId>
diff --git a/extensions/do/json/pom.xml b/extensions/do/json/pom.xml
index fd2da82117..9518e28ebe 100644
--- a/extensions/do/json/pom.xml
+++ b/extensions/do/json/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>do</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>do-json</artifactId>
diff --git a/extensions/do/kvp/pom.xml b/extensions/do/kvp/pom.xml
index 7f8ae92800..18c033b101 100644
--- a/extensions/do/kvp/pom.xml
+++ b/extensions/do/kvp/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>do</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>do-kvp</artifactId>
diff --git a/extensions/do/pom.xml b/extensions/do/pom.xml
index 181874a52d..95986c1f66 100644
--- a/extensions/do/pom.xml
+++ b/extensions/do/pom.xml
@@ -3,12 +3,12 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>extensions</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <packaging>pom</packaging>
     <artifactId>do</artifactId>
-    <version>4.4.0-SNAPSHOT</version>
+    <version>4.4.0-M2</version>
     <name>52°North SOS - Extension Delete Observation</name>
     <description>52°North SOS Extension Delete Observation</description>
     <licenses>
diff --git a/extensions/do/xml/pom.xml b/extensions/do/xml/pom.xml
index deae250dba..d10a0c2001 100644
--- a/extensions/do/xml/pom.xml
+++ b/extensions/do/xml/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>do</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>do-xml</artifactId>
diff --git a/extensions/gda/hibernate/pom.xml b/extensions/gda/hibernate/pom.xml
index d34521e702..5fd93e7684 100644
--- a/extensions/gda/hibernate/pom.xml
+++ b/extensions/gda/hibernate/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>gda</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>gda-hibernate</artifactId>
     <name>52°North SOS - Extension GetDataAvailability - Hibernate DAO</name>
diff --git a/extensions/gda/operation/pom.xml b/extensions/gda/operation/pom.xml
index 841862c760..cc1cb4259e 100644
--- a/extensions/gda/operation/pom.xml
+++ b/extensions/gda/operation/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>gda</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>gda-operation</artifactId>
     <name>52°North SOS - Extension GetDataAvailability - SOS 2.0 Operation</name>
diff --git a/extensions/gda/pom.xml b/extensions/gda/pom.xml
index 0e011dfb28..23ee93e8d4 100644
--- a/extensions/gda/pom.xml
+++ b/extensions/gda/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>extensions</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>gda</artifactId>
diff --git a/extensions/inspire/code/pom.xml b/extensions/inspire/code/pom.xml
index 311f984b64..e99deff73b 100644
--- a/extensions/inspire/code/pom.xml
+++ b/extensions/inspire/code/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>inspire</artifactId>
-		<version>4.4.0-SNAPSHOT</version>
+		<version>4.4.0-M2</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>inspire-code</artifactId>
diff --git a/extensions/inspire/pom.xml b/extensions/inspire/pom.xml
index 909320ffab..3fd4f4704e 100644
--- a/extensions/inspire/pom.xml
+++ b/extensions/inspire/pom.xml
@@ -3,11 +3,11 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>extensions</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>inspire</artifactId>
-     <version>4.4.0-SNAPSHOT</version>
+     <version>4.4.0-M2</version>
     <packaging>pom</packaging>
     <name>52°North SOS - SOS 2.0 Inspire extension</name>
     <description>52°North Sensor Observation Service Inspire extension module</description>
diff --git a/extensions/pom.xml b/extensions/pom.xml
index a01675c50d..67d18dd906 100644
--- a/extensions/pom.xml
+++ b/extensions/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>52n-sos</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>extensions</artifactId>
     <packaging>pom</packaging>
diff --git a/hibernate/common/pom.xml b/hibernate/common/pom.xml
index 166e63cf7c..64ca584053 100644
--- a/hibernate/common/pom.xml
+++ b/hibernate/common/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-common</artifactId>
diff --git a/hibernate/dao/pom.xml b/hibernate/dao/pom.xml
index 86a656cc85..6149aefd3f 100644
--- a/hibernate/dao/pom.xml
+++ b/hibernate/dao/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-dao</artifactId>
diff --git a/hibernate/datasource/common/pom.xml b/hibernate/datasource/common/pom.xml
index 1c20d8dfaa..48e21f2a5d 100644
--- a/hibernate/datasource/common/pom.xml
+++ b/hibernate/datasource/common/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate-datasource</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-datasource-common</artifactId>
diff --git a/hibernate/datasource/h2/pom.xml b/hibernate/datasource/h2/pom.xml
index 0859ddbc32..389e9744ef 100644
--- a/hibernate/datasource/h2/pom.xml
+++ b/hibernate/datasource/h2/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate-datasource</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-datasource-h2</artifactId>
diff --git a/hibernate/datasource/mysql/pom.xml b/hibernate/datasource/mysql/pom.xml
index d1a435ea2f..440efa1b23 100644
--- a/hibernate/datasource/mysql/pom.xml
+++ b/hibernate/datasource/mysql/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate-datasource</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-datasource-mysql</artifactId>
diff --git a/hibernate/datasource/oracle/pom.xml b/hibernate/datasource/oracle/pom.xml
index 770e5c7588..d5e8417f2c 100644
--- a/hibernate/datasource/oracle/pom.xml
+++ b/hibernate/datasource/oracle/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>hibernate-datasource</artifactId>
-		<version>4.4.0-SNAPSHOT</version>
+		<version>4.4.0-M2</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>hibernate-datasource-oracle</artifactId>
diff --git a/hibernate/datasource/pom.xml b/hibernate/datasource/pom.xml
index a5ec389547..d96409d50b 100644
--- a/hibernate/datasource/pom.xml
+++ b/hibernate/datasource/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-datasource</artifactId>
diff --git a/hibernate/datasource/postgres/pom.xml b/hibernate/datasource/postgres/pom.xml
index 1f4970b231..42ec4180e5 100644
--- a/hibernate/datasource/postgres/pom.xml
+++ b/hibernate/datasource/postgres/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate-datasource</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-datasource-postgres</artifactId>
diff --git a/hibernate/datasource/sqlserver/pom.xml b/hibernate/datasource/sqlserver/pom.xml
index 3f060157b4..34c2e9b04a 100644
--- a/hibernate/datasource/sqlserver/pom.xml
+++ b/hibernate/datasource/sqlserver/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>hibernate-datasource</artifactId>
-		<version>4.4.0-SNAPSHOT</version>
+		<version>4.4.0-M2</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>hibernate-datasource-sqlserver</artifactId>
diff --git a/hibernate/feature/pom.xml b/hibernate/feature/pom.xml
index c56cc2889a..a36087903d 100644
--- a/hibernate/feature/pom.xml
+++ b/hibernate/feature/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-feature</artifactId>
diff --git a/hibernate/h2/pom.xml b/hibernate/h2/pom.xml
index 3ec100f324..db12c7aeef 100644
--- a/hibernate/h2/pom.xml
+++ b/hibernate/h2/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>hibernate-h2</artifactId>
     <name>52°North SOS - Hibernate H2</name>
diff --git a/hibernate/mappings/pom.xml b/hibernate/mappings/pom.xml
index aa542cafce..a7db3f8a55 100644
--- a/hibernate/mappings/pom.xml
+++ b/hibernate/mappings/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>hibernate-mappings</artifactId>
     <name>52°North SOS - Hibernate Mappings</name>
diff --git a/hibernate/pom.xml b/hibernate/pom.xml
index 2a8cacc8b4..5912e8fea9 100644
--- a/hibernate/pom.xml
+++ b/hibernate/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>52n-sos</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>hibernate</artifactId>
     <packaging>pom</packaging>
diff --git a/hibernate/session-factory/pom.xml b/hibernate/session-factory/pom.xml
index 3515c85c7f..7481f2f698 100644
--- a/hibernate/session-factory/pom.xml
+++ b/hibernate/session-factory/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>hibernate</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-session-factory</artifactId>
diff --git a/operations/core-v100/pom.xml b/operations/core-v100/pom.xml
index 102034343c..46300e1276 100644
--- a/operations/core-v100/pom.xml
+++ b/operations/core-v100/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>operations</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-v100</artifactId>
diff --git a/operations/core-v20/pom.xml b/operations/core-v20/pom.xml
index 269a67c6c9..9cee57b0ea 100644
--- a/operations/core-v20/pom.xml
+++ b/operations/core-v20/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>operations</artifactId>
-		<version>4.4.0-SNAPSHOT</version>
+		<version>4.4.0-M2</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>core-v20</artifactId>
diff --git a/operations/enhanced-v20/pom.xml b/operations/enhanced-v20/pom.xml
index 26d0fd1059..b1678de588 100644
--- a/operations/enhanced-v20/pom.xml
+++ b/operations/enhanced-v20/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>operations</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>enhanced-v20</artifactId>
diff --git a/operations/pom.xml b/operations/pom.xml
index 5029df99bc..470508eb54 100644
--- a/operations/pom.xml
+++ b/operations/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>52n-sos</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>operations</artifactId>
     <packaging>pom</packaging>
diff --git a/operations/resultHandling-v20/pom.xml b/operations/resultHandling-v20/pom.xml
index 3f7f1f34ca..fc4eb4831e 100644
--- a/operations/resultHandling-v20/pom.xml
+++ b/operations/resultHandling-v20/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>operations</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>resultHandling-v20</artifactId>
diff --git a/operations/transactional-v20/pom.xml b/operations/transactional-v20/pom.xml
index 37f46ab79a..769e5128e6 100644
--- a/operations/transactional-v20/pom.xml
+++ b/operations/transactional-v20/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>operations</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>transactional-v20</artifactId>
diff --git a/pom.xml b/pom.xml
index 6829d74be8..475b75ae48 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.n52.sensorweb.sos</groupId>
     <artifactId>52n-sos</artifactId>
-    <version>4.4.0-SNAPSHOT</version>
+    <version>4.4.0-M2</version>
     <name>52°North Sensor Observation Service</name>
     <description>52°North Sensor Observation Service - Parent POM for defining dependency versions</description>
     <url>https://wiki.52north.org/bin/view/SensorWeb/SensorObservationServiceIVDocumentation</url>
diff --git a/spring/admin-controller/pom.xml b/spring/admin-controller/pom.xml
index fbcd5304b3..493b40e89d 100644
--- a/spring/admin-controller/pom.xml
+++ b/spring/admin-controller/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>spring</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>admin-controller</artifactId>
     <name>52°North SOS - Web Admin Controller</name>
diff --git a/spring/client-controller/pom.xml b/spring/client-controller/pom.xml
index a06f8407d0..3dcef063cd 100644
--- a/spring/client-controller/pom.xml
+++ b/spring/client-controller/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>spring</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>client-controller</artifactId>
     <name>52°North SOS - Web Client Controller</name>
diff --git a/spring/common-controller/pom.xml b/spring/common-controller/pom.xml
index de4b8dd344..c9d9f8b6d4 100644
--- a/spring/common-controller/pom.xml
+++ b/spring/common-controller/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>spring</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>common-controller</artifactId>
     <name>52°North SOS - Web Common Controller</name>
diff --git a/spring/install-controller/pom.xml b/spring/install-controller/pom.xml
index 0530249ea9..5179c3270e 100644
--- a/spring/install-controller/pom.xml
+++ b/spring/install-controller/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.n52.sensorweb.sos</groupId>
 		<artifactId>spring</artifactId>
-		<version>4.4.0-SNAPSHOT</version>
+		<version>4.4.0-M2</version>
 	</parent>
 	<artifactId>install-controller</artifactId>
 	<name>52°North SOS - Web Install Controller</name>
diff --git a/spring/pom.xml b/spring/pom.xml
index 2669f75401..b118548911 100644
--- a/spring/pom.xml
+++ b/spring/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>52n-sos</artifactId>
         <groupId>org.n52.sensorweb.sos</groupId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>spring</artifactId>
     <packaging>pom</packaging>
diff --git a/spring/views/pom.xml b/spring/views/pom.xml
index 7bb27b201e..b1fe99ed49 100644
--- a/spring/views/pom.xml
+++ b/spring/views/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>spring</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>views</artifactId>
     <name>52°North SOS - Web Views</name>
diff --git a/third-party/pom.xml b/third-party/pom.xml
index 834fcbce85..2b8686bd64 100644
--- a/third-party/pom.xml
+++ b/third-party/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>org.n52.sensorweb.sos</groupId>
     <artifactId>52n-sos</artifactId>
-    <version>4.4.0-SNAPSHOT</version>
+    <version>4.4.0-M2</version>
   </parent>
   <artifactId>52n-sos-third-party</artifactId>
   <name>52°North Aggregated Third Party modules</name>
diff --git a/third-party/third-party-ncname-resolver/pom.xml b/third-party/third-party-ncname-resolver/pom.xml
index 8b63ee4ee7..782ab76715 100644
--- a/third-party/third-party-ncname-resolver/pom.xml
+++ b/third-party/third-party-ncname-resolver/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>org.n52.sensorweb.sos</groupId>
         <artifactId>52n-sos-third-party</artifactId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <artifactId>third-party-ncname-resolver</artifactId>
     <name>52°North Third Party - NCName resolver</name>
diff --git a/webapp-bundle/pom.xml b/webapp-bundle/pom.xml
index d950099708..84f92007d0 100644
--- a/webapp-bundle/pom.xml
+++ b/webapp-bundle/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<artifactId>52n-sos</artifactId>
 		<groupId>org.n52.sensorweb.sos</groupId>
-		 <version>4.4.0-SNAPSHOT</version>
+		 <version>4.4.0-M2</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>webapp-bundle</artifactId>
diff --git a/webapp/pom.xml b/webapp/pom.xml
index fbb99b1701..a4ed613d68 100644
--- a/webapp/pom.xml
+++ b/webapp/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>52n-sos</artifactId>
         <groupId>org.n52.sensorweb.sos</groupId>
-        <version>4.4.0-SNAPSHOT</version>
+        <version>4.4.0-M2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>webapp</artifactId>