[maven-release-plugin] prepare for next development iteration
diff --git a/aws-common/pom.xml b/aws-common/pom.xml
index 7f0f9ef..1fa776d 100644
--- a/aws-common/pom.xml
+++ b/aws-common/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index 1204c23..b37e0c3 100644
--- a/benchmarks/pom.xml
+++ b/benchmarks/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.9.0</version>
+    <version>0.9.1-SNAPSHOT</version>
   </parent>
 
   <prerequisites>
diff --git a/common/pom.xml b/common/pom.xml
index 0eb4b00..9bfaaf1 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/distribution/pom.xml b/distribution/pom.xml
index 68ae178..6fbc541 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <artifactId>druid</artifactId>
         <groupId>io.druid</groupId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/examples/pom.xml b/examples/pom.xml
index 7c84897..b43c586 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/extensions-contrib/azure-extensions/pom.xml b/extensions-contrib/azure-extensions/pom.xml
index 705df0a..dd777fa 100644
--- a/extensions-contrib/azure-extensions/pom.xml
+++ b/extensions-contrib/azure-extensions/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/cassandra-storage/pom.xml b/extensions-contrib/cassandra-storage/pom.xml
index 227e8ec..fda9e12 100644
--- a/extensions-contrib/cassandra-storage/pom.xml
+++ b/extensions-contrib/cassandra-storage/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/cloudfiles-extensions/pom.xml b/extensions-contrib/cloudfiles-extensions/pom.xml
index 444fff9..cb52c62 100644
--- a/extensions-contrib/cloudfiles-extensions/pom.xml
+++ b/extensions-contrib/cloudfiles-extensions/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/graphite-emitter/pom.xml b/extensions-contrib/graphite-emitter/pom.xml
index 51f1c59..fffa540 100644
--- a/extensions-contrib/graphite-emitter/pom.xml
+++ b/extensions-contrib/graphite-emitter/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.9.0</version>
+    <version>0.9.1-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-contrib/kafka-eight-simpleConsumer/pom.xml b/extensions-contrib/kafka-eight-simpleConsumer/pom.xml
index 297b521..d7671d1 100644
--- a/extensions-contrib/kafka-eight-simpleConsumer/pom.xml
+++ b/extensions-contrib/kafka-eight-simpleConsumer/pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.9.0</version>
+    <version>0.9.1-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-contrib/rabbitmq/pom.xml b/extensions-contrib/rabbitmq/pom.xml
index e117d1e..25000fa 100644
--- a/extensions-contrib/rabbitmq/pom.xml
+++ b/extensions-contrib/rabbitmq/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/avro-extensions/pom.xml b/extensions-core/avro-extensions/pom.xml
index ec09e6b..10641cc 100644
--- a/extensions-core/avro-extensions/pom.xml
+++ b/extensions-core/avro-extensions/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.9.0</version>
+    <version>0.9.1-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/datasketches/pom.xml b/extensions-core/datasketches/pom.xml
index 1109255..4538179 100644
--- a/extensions-core/datasketches/pom.xml
+++ b/extensions-core/datasketches/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.9.0</version>
+    <version>0.9.1-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/hdfs-storage/pom.xml b/extensions-core/hdfs-storage/pom.xml
index b69eddf..b6408ee 100644
--- a/extensions-core/hdfs-storage/pom.xml
+++ b/extensions-core/hdfs-storage/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/histogram/pom.xml b/extensions-core/histogram/pom.xml
index 16588d7..349073b 100644
--- a/extensions-core/histogram/pom.xml
+++ b/extensions-core/histogram/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/kafka-eight/pom.xml b/extensions-core/kafka-eight/pom.xml
index 7321c09..99ce64c 100644
--- a/extensions-core/kafka-eight/pom.xml
+++ b/extensions-core/kafka-eight/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/kafka-extraction-namespace/pom.xml b/extensions-core/kafka-extraction-namespace/pom.xml
index 143714b..a748fd8 100644
--- a/extensions-core/kafka-extraction-namespace/pom.xml
+++ b/extensions-core/kafka-extraction-namespace/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.9.0</version>
+    <version>0.9.1-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/mysql-metadata-storage/pom.xml b/extensions-core/mysql-metadata-storage/pom.xml
index 56360ff..2abc93e 100644
--- a/extensions-core/mysql-metadata-storage/pom.xml
+++ b/extensions-core/mysql-metadata-storage/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/namespace-lookup/pom.xml b/extensions-core/namespace-lookup/pom.xml
index 02fbc61..37b512b 100644
--- a/extensions-core/namespace-lookup/pom.xml
+++ b/extensions-core/namespace-lookup/pom.xml
@@ -28,7 +28,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.9.0</version>
+    <version>0.9.1-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/postgresql-metadata-storage/pom.xml b/extensions-core/postgresql-metadata-storage/pom.xml
index cde4262..d5d9afe 100644
--- a/extensions-core/postgresql-metadata-storage/pom.xml
+++ b/extensions-core/postgresql-metadata-storage/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/s3-extensions/pom.xml b/extensions-core/s3-extensions/pom.xml
index eb8861e..fbbe5ab 100644
--- a/extensions-core/s3-extensions/pom.xml
+++ b/extensions-core/s3-extensions/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/indexing-hadoop/pom.xml b/indexing-hadoop/pom.xml
index 792f5ff..263921d 100644
--- a/indexing-hadoop/pom.xml
+++ b/indexing-hadoop/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/indexing-service/pom.xml b/indexing-service/pom.xml
index 4704494..7e808a8 100644
--- a/indexing-service/pom.xml
+++ b/indexing-service/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/integration-tests/pom.xml b/integration-tests/pom.xml
index 6ddc432..1a48d54 100644
--- a/integration-tests/pom.xml
+++ b/integration-tests/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <properties>
diff --git a/pom.xml b/pom.xml
index 52bf02d..424e9b9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,7 +26,7 @@
     </parent>
 
     <artifactId>druid</artifactId>
-    <version>0.9.0</version>
+    <version>0.9.1-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>${project.groupId}:${project.artifactId}</name>
@@ -53,7 +53,7 @@
         <connection>scm:git:ssh://git@github.com/druid-io/druid.git</connection>
         <developerConnection>scm:git:ssh://git@github.com/druid-io/druid.git</developerConnection>
         <url>https://github.com/druid-io/druid.git</url>
-        <tag>druid-0.9.0</tag>
+        <tag>druid-0.9.0-rc3</tag>
     </scm>
 
     <properties>
diff --git a/processing/pom.xml b/processing/pom.xml
index cd44c15..16d2b6c 100644
--- a/processing/pom.xml
+++ b/processing/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/server/pom.xml b/server/pom.xml
index 486951c..deffcea 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/services/pom.xml b/services/pom.xml
index 4439192..fd8b831 100644
--- a/services/pom.xml
+++ b/services/pom.xml
@@ -25,7 +25,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.9.0</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <dependencies>