[maven-release-plugin] prepare release v0.5.0-rc2
diff --git a/core/pom.xml b/core/pom.xml
index 82cb369..1cef627 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.hivemall</groupId>
 		<artifactId>hivemall</artifactId>
-		<version>0.5.1-incubating-SNAPSHOT</version>
+		<version>0.5.0-incubating-rc2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/dist/pom.xml b/dist/pom.xml
index bea6226..70940b8 100644
--- a/dist/pom.xml
+++ b/dist/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.hivemall</groupId>
 		<artifactId>hivemall</artifactId>
-		<version>0.5.1-incubating-SNAPSHOT</version>
+		<version>0.5.0-incubating-rc2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/mixserv/pom.xml b/mixserv/pom.xml
index ff27b09..4c2c605 100644
--- a/mixserv/pom.xml
+++ b/mixserv/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.hivemall</groupId>
 		<artifactId>hivemall</artifactId>
-		<version>0.5.1-incubating-SNAPSHOT</version>
+		<version>0.5.0-incubating-rc2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/nlp/pom.xml b/nlp/pom.xml
index 782e41d..cbee733 100644
--- a/nlp/pom.xml
+++ b/nlp/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.hivemall</groupId>
 		<artifactId>hivemall</artifactId>
-		<version>0.5.1-incubating-SNAPSHOT</version>
+		<version>0.5.0-incubating-rc2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/pom.xml b/pom.xml
index eaa1a6d..1e8734f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
 
 	<groupId>org.apache.hivemall</groupId>
 	<artifactId>hivemall</artifactId>
-	<version>0.5.1-incubating-SNAPSHOT</version>
+	<version>0.5.0-incubating-rc2</version>
 
 	<parent>
 	  <groupId>org.apache</groupId>
@@ -50,7 +50,7 @@
 		<url>https://git-wip-us.apache.org/repos/asf/incubator-hivemall.git</url>
 		<connection>scm:git:https://git-wip-us.apache.org/repos/asf/incubator-hivemall.git</connection>
 		<developerConnection>scm:git:https://git-wip-us.apache.org/repos/asf/incubator-hivemall.git</developerConnection>
-	  <tag>v0.5.0-rc1</tag>
+	  <tag>v0.5.0-rc2</tag>
   </scm>
 
 	<mailingLists>
diff --git a/spark/common/pom.xml b/spark/common/pom.xml
index a6262e8..0474374 100644
--- a/spark/common/pom.xml
+++ b/spark/common/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.hivemall</groupId>
 		<artifactId>hivemall-spark</artifactId>
-		<version>0.5.1-incubating-SNAPSHOT</version>
+		<version>0.5.0-incubating-rc2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/spark/pom.xml b/spark/pom.xml
index d018b8d..59d386d 100644
--- a/spark/pom.xml
+++ b/spark/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.hivemall</groupId>
 		<artifactId>hivemall</artifactId>
-		<version>0.5.1-incubating-SNAPSHOT</version>
+		<version>0.5.0-incubating-rc2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/spark/spark-2.0/pom.xml b/spark/spark-2.0/pom.xml
index 54c817d..02f0ee7 100644
--- a/spark/spark-2.0/pom.xml
+++ b/spark/spark-2.0/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.hivemall</groupId>
 		<artifactId>hivemall-spark</artifactId>
-		<version>0.5.1-incubating-SNAPSHOT</version>
+		<version>0.5.0-incubating-rc2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/spark/spark-2.1/pom.xml b/spark/spark-2.1/pom.xml
index e10b4ab..3829dd1 100644
--- a/spark/spark-2.1/pom.xml
+++ b/spark/spark-2.1/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.hivemall</groupId>
 		<artifactId>hivemall-spark</artifactId>
-		<version>0.5.1-incubating-SNAPSHOT</version>
+		<version>0.5.0-incubating-rc2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/spark/spark-2.2/pom.xml b/spark/spark-2.2/pom.xml
index 47aea92..ba52510 100644
--- a/spark/spark-2.2/pom.xml
+++ b/spark/spark-2.2/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.hivemall</groupId>
 		<artifactId>hivemall-spark</artifactId>
-		<version>0.5.1-incubating-SNAPSHOT</version>
+		<version>0.5.0-incubating-rc2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/xgboost/pom.xml b/xgboost/pom.xml
index 8dcb45e..d9ed72e 100644
--- a/xgboost/pom.xml
+++ b/xgboost/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.hivemall</groupId>
 		<artifactId>hivemall</artifactId>
-		<version>0.5.1-incubating-SNAPSHOT</version>
+		<version>0.5.0-incubating-rc2</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>