diff --git a/assembly/pom.xml b/assembly/pom.xml
index 808a829e192615f3fc2666fcca3576951c97cf52..d62332137a78a0e6934c3dc76a5c825de0ab8361 100644
--- a/assembly/pom.xml
+++ b/assembly/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.spark</groupId>
     <artifactId>spark-parent</artifactId>
-    <version>0.8.0-SNAPSHOT</version>
+    <version>0.9.0-incubating-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/bagel/pom.xml b/bagel/pom.xml
index 51173c32b2c152ddfb3166df80deccad86f31c1a..c4ce006085aeb1937bac2c0260b36fc0a90ffb81 100644
--- a/bagel/pom.xml
+++ b/bagel/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.spark</groupId>
     <artifactId>spark-parent</artifactId>
-    <version>0.8.0-SNAPSHOT</version>
+    <version>0.9.0-incubating-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/core/pom.xml b/core/pom.xml
index 14cd520aaf10eeb8d8908720e8ae63bac4b7fcdc..9c2d6046a99cd249e2f288dde0507db038f23f42 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.spark</groupId>
     <artifactId>spark-parent</artifactId>
-    <version>0.8.0-SNAPSHOT</version>
+    <version>0.9.0-incubating-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/docs/_config.yml b/docs/_config.yml
index b061764b36817cf2d6fde9ede6ffc897e6fab0c3..48ecb8d0c9bf28660ea2df2bd1e58a527f5f8c7e 100644
--- a/docs/_config.yml
+++ b/docs/_config.yml
@@ -3,8 +3,8 @@ markdown: kramdown
 
 # These allow the documentation to be updated with nerw releases
 # of Spark, Scala, and Mesos.
-SPARK_VERSION: 0.8.0-SNAPSHOT
-SPARK_VERSION_SHORT: 0.8.0
+SPARK_VERSION: 0.9.0-incubating-SNAPSHOT
+SPARK_VERSION_SHORT: 0.9.0-SNAPSHOT
 SCALA_VERSION: 2.9.3
 MESOS_VERSION: 0.13.0
 SPARK_ISSUE_TRACKER_URL: https://spark-project.atlassian.net
diff --git a/examples/pom.xml b/examples/pom.xml
index e48f5b50abcc6f7f88bf6bdb40e42be822767539..b9cc6f5e0aa45ba52c2c385cd649737f760f401f 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.spark</groupId>
     <artifactId>spark-parent</artifactId>
-    <version>0.8.0-SNAPSHOT</version>
+    <version>0.9.0-incubating-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/mllib/pom.xml b/mllib/pom.xml
index 966caf6835561f0a876970aeaf2118c6568d16e4..4ef4f0ae4e0770013ec49b2c18c4d3d311b6dd56 100644
--- a/mllib/pom.xml
+++ b/mllib/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.spark</groupId>
     <artifactId>spark-parent</artifactId>
-    <version>0.8.0-SNAPSHOT</version>
+    <version>0.9.0-incubating-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/pom.xml b/pom.xml
index 4aed1260f06c8a56a01435d2a8c85523f4d1c1a6..d74d45adf17d7790d9ed753d23d7f4ade46314f9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
   </parent>
   <groupId>org.apache.spark</groupId>
   <artifactId>spark-parent</artifactId>
-  <version>0.8.0-SNAPSHOT</version>
+  <version>0.9.0-incubating-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>Spark Project Parent POM</name>
   <url>http://spark.incubator.apache.org/</url>
diff --git a/project/SparkBuild.scala b/project/SparkBuild.scala
index ed7671757bfa102f944a5085f149041a25e3754e..a2e29591fc7ad44292106d057eaae8a1663d4bf7 100644
--- a/project/SparkBuild.scala
+++ b/project/SparkBuild.scala
@@ -79,7 +79,7 @@ object SparkBuild extends Build {
 
   def sharedSettings = Defaults.defaultSettings ++ Seq(
     organization := "org.apache.spark",
-    version := "0.8.0-SNAPSHOT",
+    version := "0.9.0-incubating-SNAPSHOT",
     scalaVersion := "2.9.3",
     scalacOptions := Seq("-unchecked", "-optimize", "-deprecation", 
       "-target:" + SCALAC_JVM_VERSION),
diff --git a/python/pyspark/shell.py b/python/pyspark/shell.py
index dc205b306f0a93d398d4b18c95da6f888a93ec6e..a47595909029754590cf2a4fac27e4d3b0d6b17a 100644
--- a/python/pyspark/shell.py
+++ b/python/pyspark/shell.py
@@ -35,7 +35,7 @@ print """Welcome to
       ____              __
      / __/__  ___ _____/ /__
     _\ \/ _ \/ _ `/ __/  '_/
-   /__ / .__/\_,_/_/ /_/\_\   version 0.8.0
+   /__ / .__/\_,_/_/ /_/\_\   version 0.9.0-SNAPSHOT
       /_/
 """
 print "Using Python version %s (%s, %s)" % (
diff --git a/repl-bin/pom.xml b/repl-bin/pom.xml
index 3685561501d67c8c47f0109a1a66588ec8e3acf5..05aadc7bdf2f3ea984ab73297ae5ccd9db515600 100644
--- a/repl-bin/pom.xml
+++ b/repl-bin/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.spark</groupId>
     <artifactId>spark-parent</artifactId>
-    <version>0.8.0-SNAPSHOT</version>
+    <version>0.9.0-incubating-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/repl/src/main/scala/org/apache/spark/repl/SparkILoop.scala b/repl/src/main/scala/org/apache/spark/repl/SparkILoop.scala
index 193ccb48eeb98827bb8d4f6f6df62209f7c5010a..36f54a22cf30449d421364ab74d8dcb2db459783 100644
--- a/repl/src/main/scala/org/apache/spark/repl/SparkILoop.scala
+++ b/repl/src/main/scala/org/apache/spark/repl/SparkILoop.scala
@@ -200,7 +200,7 @@ class SparkILoop(in0: Option[BufferedReader], val out: PrintWriter, val master:
       ____              __  
      / __/__  ___ _____/ /__
     _\ \/ _ \/ _ `/ __/  '_/
-   /___/ .__/\_,_/_/ /_/\_\   version 0.8.0
+   /___/ .__/\_,_/_/ /_/\_\   version 0.9.0-SNAPSHOT
       /_/                  
 """)
     import Properties._
diff --git a/streaming/pom.xml b/streaming/pom.xml
index 7bea069b6158a2292c47bd6f6c91bead6e9fd3f9..b260a72abb24ee821b366acb17c51452ecfa5226 100644
--- a/streaming/pom.xml
+++ b/streaming/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.spark</groupId>
     <artifactId>spark-parent</artifactId>
-    <version>0.8.0-SNAPSHOT</version>
+    <version>0.9.0-incubating-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/tools/pom.xml b/tools/pom.xml
index 77646a68165adea8bb810259f91ff368367f652d..29f001412829323cd3efc1562d077957a5f89953 100644
--- a/tools/pom.xml
+++ b/tools/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.spark</groupId>
     <artifactId>spark-parent</artifactId>
-    <version>0.8.0-SNAPSHOT</version>
+    <version>0.9.0-incubating-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/yarn/pom.xml b/yarn/pom.xml
index 21b650d1ea7ce5a21053515782a6f92d6f5cee9b..427fcdf545aaf371508d5ab61352e3f2eeb83cc2 100644
--- a/yarn/pom.xml
+++ b/yarn/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.spark</groupId>
     <artifactId>spark-parent</artifactId>
-    <version>0.8.0-SNAPSHOT</version>
+    <version>0.9.0-incubating-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>