diff --git a/api/pom.xml b/api/pom.xml
index 04fdda41eb34..10c3a98a356a 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/aws-common/pom.xml b/aws-common/pom.xml
index 0d2a2bf5f299..608552f98f54 100644
--- a/aws-common/pom.xml
+++ b/aws-common/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/benchmarks/pom.xml b/benchmarks/pom.xml
index 8ec16d5a9226..596931c14391 100644
--- a/benchmarks/pom.xml
+++ b/benchmarks/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
   </parent>
 
   <prerequisites>
diff --git a/bytebuffer-collections/pom.xml b/bytebuffer-collections/pom.xml
index cf658a5c3d4a..4b8b231d5ea0 100755
--- a/bytebuffer-collections/pom.xml
+++ b/bytebuffer-collections/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>bytebuffer-collections</artifactId>
diff --git a/common/pom.xml b/common/pom.xml
index b7bf46c7cd1d..58379d338640 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/distribution/pom.xml b/distribution/pom.xml
index f1dd51b1403b..b519ce7f766f 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>druid</artifactId>
         <groupId>io.druid</groupId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/examples/pom.xml b/examples/pom.xml
index dcc5eab67d41..231469f4b06e 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/extendedset/pom.xml b/extendedset/pom.xml
index edb0f045371d..91f19144c8ec 100755
--- a/extendedset/pom.xml
+++ b/extendedset/pom.xml
@@ -32,7 +32,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
   </parent>
 
   <dependencies>
diff --git a/extensions-contrib/ambari-metrics-emitter/pom.xml b/extensions-contrib/ambari-metrics-emitter/pom.xml
index bdf4b543cf29..14fe7cd44bb9 100644
--- a/extensions-contrib/ambari-metrics-emitter/pom.xml
+++ b/extensions-contrib/ambari-metrics-emitter/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-contrib/azure-extensions/pom.xml b/extensions-contrib/azure-extensions/pom.xml
index 9ac27d3ef471..1c647b0e91d4 100644
--- a/extensions-contrib/azure-extensions/pom.xml
+++ b/extensions-contrib/azure-extensions/pom.xml
@@ -30,7 +30,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/cassandra-storage/pom.xml b/extensions-contrib/cassandra-storage/pom.xml
index dcb408e8ba7c..ea32b084b02f 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>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/cloudfiles-extensions/pom.xml b/extensions-contrib/cloudfiles-extensions/pom.xml
index c084777de6d0..da06a9e9e51a 100644
--- a/extensions-contrib/cloudfiles-extensions/pom.xml
+++ b/extensions-contrib/cloudfiles-extensions/pom.xml
@@ -30,7 +30,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/distinctcount/pom.xml b/extensions-contrib/distinctcount/pom.xml
index af6b89f2ef6a..86c3fcc09c9b 100644
--- a/extensions-contrib/distinctcount/pom.xml
+++ b/extensions-contrib/distinctcount/pom.xml
@@ -30,7 +30,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/druid-rocketmq/pom.xml b/extensions-contrib/druid-rocketmq/pom.xml
index f389121b1da1..924a07cdd424 100644
--- a/extensions-contrib/druid-rocketmq/pom.xml
+++ b/extensions-contrib/druid-rocketmq/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <artifactId>druid</artifactId>
     <groupId>io.druid</groupId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-contrib/google-extensions/pom.xml b/extensions-contrib/google-extensions/pom.xml
index f5a987f8849e..20a3dd7ba3d4 100644
--- a/extensions-contrib/google-extensions/pom.xml
+++ b/extensions-contrib/google-extensions/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/graphite-emitter/pom.xml b/extensions-contrib/graphite-emitter/pom.xml
index 6e4b433305ff..8569823ea94b 100644
--- a/extensions-contrib/graphite-emitter/pom.xml
+++ b/extensions-contrib/graphite-emitter/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-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 1f351b2f5780..1c9f5c17ffe2 100644
--- a/extensions-contrib/kafka-eight-simpleConsumer/pom.xml
+++ b/extensions-contrib/kafka-eight-simpleConsumer/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-contrib/kafka-emitter/pom.xml b/extensions-contrib/kafka-emitter/pom.xml
index 24ce7f363331..9130834d243f 100644
--- a/extensions-contrib/kafka-emitter/pom.xml
+++ b/extensions-contrib/kafka-emitter/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-contrib/orc-extensions/pom.xml b/extensions-contrib/orc-extensions/pom.xml
index c8db040af661..4eb48e949ebf 100644
--- a/extensions-contrib/orc-extensions/pom.xml
+++ b/extensions-contrib/orc-extensions/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <artifactId>druid</artifactId>
         <groupId>io.druid</groupId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/extensions-contrib/parquet-extensions/pom.xml b/extensions-contrib/parquet-extensions/pom.xml
index 662f8b2138c9..b2a460fc2891 100644
--- a/extensions-contrib/parquet-extensions/pom.xml
+++ b/extensions-contrib/parquet-extensions/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <artifactId>druid</artifactId>
         <groupId>io.druid</groupId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/extensions-contrib/rabbitmq/pom.xml b/extensions-contrib/rabbitmq/pom.xml
index 0b0df935c6e6..8f1ebc47f199 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>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/redis-cache/pom.xml b/extensions-contrib/redis-cache/pom.xml
index 3c3f019cbb5f..9d0c578bcd0d 100644
--- a/extensions-contrib/redis-cache/pom.xml
+++ b/extensions-contrib/redis-cache/pom.xml
@@ -30,7 +30,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/sqlserver-metadata-storage/pom.xml b/extensions-contrib/sqlserver-metadata-storage/pom.xml
index e8e74cbf1126..0f3970cdf204 100644
--- a/extensions-contrib/sqlserver-metadata-storage/pom.xml
+++ b/extensions-contrib/sqlserver-metadata-storage/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-contrib/statsd-emitter/pom.xml b/extensions-contrib/statsd-emitter/pom.xml
index 488782111238..061b2a961a8d 100644
--- a/extensions-contrib/statsd-emitter/pom.xml
+++ b/extensions-contrib/statsd-emitter/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>druid</artifactId>
     <groupId>io.druid</groupId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/extensions-contrib/thrift-extensions/pom.xml b/extensions-contrib/thrift-extensions/pom.xml
index 8b31d7baed1b..18c51677a615 100644
--- a/extensions-contrib/thrift-extensions/pom.xml
+++ b/extensions-contrib/thrift-extensions/pom.xml
@@ -11,7 +11,7 @@
   <parent>
     <artifactId>druid</artifactId>
     <groupId>io.druid</groupId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/extensions-contrib/time-min-max/pom.xml b/extensions-contrib/time-min-max/pom.xml
index 94cbfcffbdf3..59bc7ee6b1a7 100644
--- a/extensions-contrib/time-min-max/pom.xml
+++ b/extensions-contrib/time-min-max/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>druid</artifactId>
     <groupId>io.druid</groupId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/extensions-contrib/virtual-columns/pom.xml b/extensions-contrib/virtual-columns/pom.xml
index 6064cc7b5961..3102a75d1d98 100644
--- a/extensions-contrib/virtual-columns/pom.xml
+++ b/extensions-contrib/virtual-columns/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/avro-extensions/pom.xml b/extensions-core/avro-extensions/pom.xml
index a08e4d946b70..9102202fac31 100644
--- a/extensions-core/avro-extensions/pom.xml
+++ b/extensions-core/avro-extensions/pom.xml
@@ -30,7 +30,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/datasketches/pom.xml b/extensions-core/datasketches/pom.xml
index c037f8317456..00509cde6cdc 100644
--- a/extensions-core/datasketches/pom.xml
+++ b/extensions-core/datasketches/pom.xml
@@ -30,7 +30,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/druid-kerberos/pom.xml b/extensions-core/druid-kerberos/pom.xml
index 6a44f4f80b17..08696bed8122 100644
--- a/extensions-core/druid-kerberos/pom.xml
+++ b/extensions-core/druid-kerberos/pom.xml
@@ -30,7 +30,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/hdfs-storage/pom.xml b/extensions-core/hdfs-storage/pom.xml
index 1a842ac76d4d..5f6aecd0b2f2 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>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/histogram/pom.xml b/extensions-core/histogram/pom.xml
index a1a714809b93..5f0a3765d649 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>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/kafka-eight/pom.xml b/extensions-core/kafka-eight/pom.xml
index 4e35e8473b66..2b94032c5878 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>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-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 ede58023c564..0edc753e9bc0 100644
--- a/extensions-core/kafka-extraction-namespace/pom.xml
+++ b/extensions-core/kafka-extraction-namespace/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/kafka-indexing-service/pom.xml b/extensions-core/kafka-indexing-service/pom.xml
index f89d5a4b28e9..007336e282f8 100644
--- a/extensions-core/kafka-indexing-service/pom.xml
+++ b/extensions-core/kafka-indexing-service/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/kafka-indexing-service/src/main/java/io/druid/indexing/kafka/KafkaIndexTask.java b/extensions-core/kafka-indexing-service/src/main/java/io/druid/indexing/kafka/KafkaIndexTask.java
index 312fd1c8cbca..91c96d695a9f 100644
--- a/extensions-core/kafka-indexing-service/src/main/java/io/druid/indexing/kafka/KafkaIndexTask.java
+++ b/extensions-core/kafka-indexing-service/src/main/java/io/druid/indexing/kafka/KafkaIndexTask.java
@@ -408,7 +408,7 @@ private void createAndStartPublishExecutor()
   @Override
   public TaskStatus run(final TaskToolbox toolbox) throws Exception
   {
-    // for backwards compatibility, should be remove from versions greater than 0.11.1
+    // for backwards compatibility, should be remove from versions greater than 0.12.x
     if (useLegacy) {
       return runLegacy(toolbox);
     }
@@ -1478,7 +1478,7 @@ public Response setEndOffsets(
       final boolean finish // this field is only for internal purposes, shouldn't be usually set by users
   ) throws InterruptedException
   {
-    // for backwards compatibility, should be removed from versions greater than 0.11.1
+    // for backwards compatibility, should be removed from versions greater than 0.12.x
     if (useLegacy) {
       return setEndOffsetsLegacy(offsets, resume);
     }
diff --git a/extensions-core/kafka-indexing-service/src/test/java/io/druid/indexing/kafka/KafkaIndexTaskTest.java b/extensions-core/kafka-indexing-service/src/test/java/io/druid/indexing/kafka/KafkaIndexTaskTest.java
index 9d94127d4de3..905d2d1764bf 100644
--- a/extensions-core/kafka-indexing-service/src/test/java/io/druid/indexing/kafka/KafkaIndexTaskTest.java
+++ b/extensions-core/kafka-indexing-service/src/test/java/io/druid/indexing/kafka/KafkaIndexTaskTest.java
@@ -195,7 +195,7 @@ public class KafkaIndexTaskTest
   private final boolean isIncrementalHandoffSupported;
   private final Set<Integer> checkpointRequestsHash = Sets.newHashSet();
 
-  // This should be removed in versions greater that 0.11.1
+  // This should be removed in versions greater that 0.12.x
   // isIncrementalHandoffSupported should always be set to true in those later versions
   @Parameterized.Parameters(name = "isIncrementalHandoffSupported = {0}")
   public static Iterable<Object[]> constructorFeeder()
@@ -1129,7 +1129,7 @@ public void testRunOneTaskTwoPartitions() throws Exception
     // Check published segments & metadata
     SegmentDescriptor desc1 = SD(task, "2010/P1D", 0);
     SegmentDescriptor desc2 = SD(task, "2011/P1D", 0);
-    // desc3 will not be created in KafkaIndexTask (0.11.1) as it does not create per Kafka partition Druid segments
+    // desc3 will not be created in KafkaIndexTask (0.12.x) as it does not create per Kafka partition Druid segments
     SegmentDescriptor desc3 = SD(task, "2011/P1D", 1);
     SegmentDescriptor desc4 = SD(task, "2012/P1D", 0);
     Assert.assertEquals(isIncrementalHandoffSupported
diff --git a/extensions-core/lookups-cached-global/pom.xml b/extensions-core/lookups-cached-global/pom.xml
index 68cbec5bccc1..4ce26c7a803c 100644
--- a/extensions-core/lookups-cached-global/pom.xml
+++ b/extensions-core/lookups-cached-global/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/lookups-cached-single/pom.xml b/extensions-core/lookups-cached-single/pom.xml
index f622e32c4a69..9b4ea5a5ea36 100644
--- a/extensions-core/lookups-cached-single/pom.xml
+++ b/extensions-core/lookups-cached-single/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-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 0269029c2f23..950a985ce8ff 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>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-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 f06eb57b5a62..d4625a6499ce 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>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/protobuf-extensions/pom.xml b/extensions-core/protobuf-extensions/pom.xml
index 53abb35caf31..e1a14d412b6e 100644
--- a/extensions-core/protobuf-extensions/pom.xml
+++ b/extensions-core/protobuf-extensions/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <artifactId>druid</artifactId>
     <groupId>io.druid</groupId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 
diff --git a/extensions-core/s3-extensions/pom.xml b/extensions-core/s3-extensions/pom.xml
index 2c89929620a6..2bc41646a5ab 100644
--- a/extensions-core/s3-extensions/pom.xml
+++ b/extensions-core/s3-extensions/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/extensions-core/simple-client-sslcontext/pom.xml b/extensions-core/simple-client-sslcontext/pom.xml
index 96b33eaafc38..9277db3a5526 100644
--- a/extensions-core/simple-client-sslcontext/pom.xml
+++ b/extensions-core/simple-client-sslcontext/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <artifactId>druid</artifactId>
     <groupId>io.druid</groupId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/extensions-core/stats/pom.xml b/extensions-core/stats/pom.xml
index cc77d49f45cc..e6dd75e687d5 100644
--- a/extensions-core/stats/pom.xml
+++ b/extensions-core/stats/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/hll/pom.xml b/hll/pom.xml
index 4131fbad46e5..653b2ca63b32 100644
--- a/hll/pom.xml
+++ b/hll/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>druid-hll</artifactId>
diff --git a/indexing-hadoop/pom.xml b/indexing-hadoop/pom.xml
index 2ebf9dfc0560..9ab3867d3bf9 100644
--- a/indexing-hadoop/pom.xml
+++ b/indexing-hadoop/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/indexing-service/pom.xml b/indexing-service/pom.xml
index 1c2e59dd0f76..eedb98c94875 100644
--- a/indexing-service/pom.xml
+++ b/indexing-service/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/integration-tests/pom.xml b/integration-tests/pom.xml
index 29df7a4d7f08..41e1975c2768 100644
--- a/integration-tests/pom.xml
+++ b/integration-tests/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <properties>
diff --git a/java-util/pom.xml b/java-util/pom.xml
index 2024c03e67aa..84f093753e44 100644
--- a/java-util/pom.xml
+++ b/java-util/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>java-util</artifactId>
diff --git a/pom.xml b/pom.xml
index 00860684b675..a9e371969638 100644
--- a/pom.xml
+++ b/pom.xml
@@ -27,7 +27,7 @@
     </parent>
 
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>${project.groupId}:${project.artifactId}</name>
@@ -54,7 +54,7 @@
         <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>0.11.1-SNAPSHOT</tag>
+        <tag>0.12.0-SNAPSHOT</tag>
     </scm>
 
     <properties>
diff --git a/processing/pom.xml b/processing/pom.xml
index f1253cfdbcef..6efe43b007f5 100644
--- a/processing/pom.xml
+++ b/processing/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/server/pom.xml b/server/pom.xml
index 7c9b7f7b8c93..f1aa77c1f7ee 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/server/src/main/java/io/druid/segment/realtime/appenderator/AppenderatorDriverMetadata.java b/server/src/main/java/io/druid/segment/realtime/appenderator/AppenderatorDriverMetadata.java
index 7a8688ada8d2..0e8722c7d087 100644
--- a/server/src/main/java/io/druid/segment/realtime/appenderator/AppenderatorDriverMetadata.java
+++ b/server/src/main/java/io/druid/segment/realtime/appenderator/AppenderatorDriverMetadata.java
@@ -42,7 +42,7 @@ public AppenderatorDriverMetadata(
       @JsonProperty("segments") Map<String, List<AppenderatorDriver.SegmentWithState>> segments,
       @JsonProperty("lastSegmentIds") Map<String, String> lastSegmentIds,
       @JsonProperty("callerMetadata") Object callerMetadata,
-      // Next two properties are for backwards compatibility, should be removed on versions greater than 0.11.1
+      // Next two properties are for backwards compatibility, should be removed on versions greater than 0.12.x
       @JsonProperty("activeSegments") Map<String, List<SegmentIdentifier>> activeSegments,
       @JsonProperty("publishPendingSegments") Map<String, List<SegmentIdentifier>> publishPendingSegments
   )
diff --git a/services/pom.xml b/services/pom.xml
index 9a9e7a01fad0..9d164c847048 100644
--- a/services/pom.xml
+++ b/services/pom.xml
@@ -25,7 +25,7 @@
     <parent>
         <groupId>io.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>0.11.1-SNAPSHOT</version>
+        <version>0.12.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/sql/pom.xml b/sql/pom.xml
index aed06eae5cf0..265390e8e7a6 100644
--- a/sql/pom.xml
+++ b/sql/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>io.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>0.11.1-SNAPSHOT</version>
+    <version>0.12.0-SNAPSHOT</version>
   </parent>
 
   <dependencies>