diff --git a/cassandra/pom.xml b/cassandra/pom.xml
index 6e1a080..4774fa7 100644
--- a/cassandra/pom.xml
+++ b/cassandra/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-cassandra</artifactId>
diff --git a/core/pom.xml b/core/pom.xml
index 2849709..5b9197b 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-core</artifactId>
diff --git a/couchdb/pom.xml b/couchdb/pom.xml
index 9dae24b..a45d218 100644
--- a/couchdb/pom.xml
+++ b/couchdb/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-couchdb</artifactId>
diff --git a/csv/pom.xml b/csv/pom.xml
index a1a0803..e914d6a 100644
--- a/csv/pom.xml
+++ b/csv/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-csv</artifactId>
diff --git a/dynamodb/pom.xml b/dynamodb/pom.xml
index e4e1825..e601fa3 100644
--- a/dynamodb/pom.xml
+++ b/dynamodb/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-dynamodb</artifactId>
diff --git a/elasticsearch/common/pom.xml b/elasticsearch/common/pom.xml
index b1bdc0c..331b0ad 100644
--- a/elasticsearch/common/pom.xml
+++ b/elasticsearch/common/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<artifactId>MetaModel-elasticsearch</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 
diff --git a/elasticsearch/native/pom.xml b/elasticsearch/native/pom.xml
index 6adca36..f4ab772 100644
--- a/elasticsearch/native/pom.xml
+++ b/elasticsearch/native/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<artifactId>MetaModel-elasticsearch</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 
diff --git a/elasticsearch/pom.xml b/elasticsearch/pom.xml
index 46f930c..4a4ba76 100644
--- a/elasticsearch/pom.xml
+++ b/elasticsearch/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-elasticsearch</artifactId>
diff --git a/elasticsearch/rest/pom.xml b/elasticsearch/rest/pom.xml
index 8f556e6..639e76d 100644
--- a/elasticsearch/rest/pom.xml
+++ b/elasticsearch/rest/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel-elasticsearch</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 
 	<modelVersion>4.0.0</modelVersion>
diff --git a/excel/pom.xml b/excel/pom.xml
index 751ff17..c557327 100644
--- a/excel/pom.xml
+++ b/excel/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-excel</artifactId>
diff --git a/fixedwidth/pom.xml b/fixedwidth/pom.xml
index 53a8d2c..69ffb26 100644
--- a/fixedwidth/pom.xml
+++ b/fixedwidth/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-fixedwidth</artifactId>
diff --git a/full/pom.xml b/full/pom.xml
index 3abb8b9..24ca60c 100644
--- a/full/pom.xml
+++ b/full/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-full</artifactId>
diff --git a/hadoop/pom.xml b/hadoop/pom.xml
index 0ab4508..aec18da 100644
--- a/hadoop/pom.xml
+++ b/hadoop/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-hadoop</artifactId>
diff --git a/hbase/pom.xml b/hbase/pom.xml
index 6659dad..7312015 100644
--- a/hbase/pom.xml
+++ b/hbase/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-hbase</artifactId>
diff --git a/jdbc/pom.xml b/jdbc/pom.xml
index 027dc6e..bc51bde 100644
--- a/jdbc/pom.xml
+++ b/jdbc/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-jdbc</artifactId>
diff --git a/json/pom.xml b/json/pom.xml
index 000171f..249222f 100644
--- a/json/pom.xml
+++ b/json/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-json</artifactId>
diff --git a/mongodb/common/pom.xml b/mongodb/common/pom.xml
index 8059b57..621b6c2 100644
--- a/mongodb/common/pom.xml
+++ b/mongodb/common/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel-mongodb</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-mongodb-common</artifactId>
diff --git a/mongodb/mongo2/pom.xml b/mongodb/mongo2/pom.xml
index 2dbcee2..de09129 100644
--- a/mongodb/mongo2/pom.xml
+++ b/mongodb/mongo2/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel-mongodb</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-mongodb-mongo2</artifactId>
diff --git a/mongodb/mongo3/pom.xml b/mongodb/mongo3/pom.xml
index ca0ea1e..70ddb8a 100644
--- a/mongodb/mongo3/pom.xml
+++ b/mongodb/mongo3/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel-mongodb</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-mongodb-mongo3</artifactId>
diff --git a/mongodb/pom.xml b/mongodb/pom.xml
index 1a595e1..0299deb 100644
--- a/mongodb/pom.xml
+++ b/mongodb/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-mongodb</artifactId>
diff --git a/neo4j/pom.xml b/neo4j/pom.xml
index 48a8c2d..8152023 100644
--- a/neo4j/pom.xml
+++ b/neo4j/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-neo4j</artifactId>
diff --git a/openoffice/pom.xml b/openoffice/pom.xml
index 38a116c..740cee9 100644
--- a/openoffice/pom.xml
+++ b/openoffice/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-openoffice</artifactId>
diff --git a/pojo/pom.xml b/pojo/pom.xml
index 7b2f185..2947562 100644
--- a/pojo/pom.xml
+++ b/pojo/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-pojo</artifactId>
diff --git a/pom.xml b/pom.xml
index 3df13d5..f1b5032 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,11 +44,11 @@
 		<url>https://git-wip-us.apache.org/repos/asf?p=metamodel.git</url>
 		<connection>scm:git:http://git-wip-us.apache.org/repos/asf/metamodel.git</connection>
 		<developerConnection>scm:git:https://git-wip-us.apache.org/repos/asf/metamodel.git</developerConnection>
-		<tag>HEAD</tag>
+		<tag>MetaModel-5.1.0-RC1</tag>
 	</scm>
 	<groupId>org.apache.metamodel</groupId>
 	<artifactId>MetaModel</artifactId>
-	<version>5.0.2-SNAPSHOT</version>
+	<version>5.1.0-RC1</version>
 	<name>MetaModel</name>
 	<description>MetaModel is a library that encapsulates the differences and enhances 
 		the capabilities of different datastores. Rich querying abilities are
diff --git a/salesforce/pom.xml b/salesforce/pom.xml
index e49d87f..42d0daa 100644
--- a/salesforce/pom.xml
+++ b/salesforce/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-salesforce</artifactId>
diff --git a/spring/pom.xml b/spring/pom.xml
index 796490a..13a11ec 100644
--- a/spring/pom.xml
+++ b/spring/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-spring</artifactId>
diff --git a/sugarcrm/pom.xml b/sugarcrm/pom.xml
index 55d6a50..bcdf9cc 100644
--- a/sugarcrm/pom.xml
+++ b/sugarcrm/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-sugarcrm</artifactId>
diff --git a/xml/pom.xml b/xml/pom.xml
index 0ff474c..7952c83 100644
--- a/xml/pom.xml
+++ b/xml/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<artifactId>MetaModel</artifactId>
 		<groupId>org.apache.metamodel</groupId>
-		<version>5.0.2-SNAPSHOT</version>
+		<version>5.1.0-RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>MetaModel-xml</artifactId>