TEZ-3208. Update version to 0.8.4-SNAPSHOT, and add section to
CHANGES.txt in prepartion for 0.8.3 release.
diff --git a/CHANGES.txt b/CHANGES.txt
index 4ae94fe..9e90ae5 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,7 +1,13 @@
 Apache Tez Change Log
 =====================
 
-Release 0.8.3: Unreleased
+Release 0.8.4: Unreleased
+
+INCOMPATIBLE CHANGES
+
+ALL CHANGES:
+
+Release 0.8.3: 2016-04-14 
 
 INCOMPATIBLE CHANGES
   TEZ-3180. Update master docs to declare hadoop-2.6.x as a minimum requirement.
diff --git a/docs/pom.xml b/docs/pom.xml
index 3fa9a16..d2c82ea 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -27,7 +27,7 @@
     <parent>
       <groupId>org.apache.tez</groupId>
       <artifactId>tez</artifactId>
-      <version>0.8.3-SNAPSHOT</version>
+      <version>0.8.4-SNAPSHOT</version>
     </parent>
     <artifactId>tez-docs</artifactId>
     <packaging>pom</packaging>
diff --git a/hadoop-shim-impls/hadoop-shim-2.4/pom.xml b/hadoop-shim-impls/hadoop-shim-2.4/pom.xml
index 133bc0e..904683b 100644
--- a/hadoop-shim-impls/hadoop-shim-2.4/pom.xml
+++ b/hadoop-shim-impls/hadoop-shim-2.4/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <artifactId>hadoop-shim-impls</artifactId>
     <groupId>org.apache.tez</groupId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hadoop-shim-2.4</artifactId>
diff --git a/hadoop-shim-impls/hadoop-shim-2.6/pom.xml b/hadoop-shim-impls/hadoop-shim-2.6/pom.xml
index 06563e6..a7d147b 100644
--- a/hadoop-shim-impls/hadoop-shim-2.6/pom.xml
+++ b/hadoop-shim-impls/hadoop-shim-2.6/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <artifactId>hadoop-shim-impls</artifactId>
     <groupId>org.apache.tez</groupId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hadoop-shim-2.6</artifactId>
diff --git a/hadoop-shim-impls/hadoop-shim-2.8/pom.xml b/hadoop-shim-impls/hadoop-shim-2.8/pom.xml
index 3d209de..4aca03c 100644
--- a/hadoop-shim-impls/hadoop-shim-2.8/pom.xml
+++ b/hadoop-shim-impls/hadoop-shim-2.8/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <artifactId>hadoop-shim-impls</artifactId>
     <groupId>org.apache.tez</groupId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hadoop-shim-2.8</artifactId>
diff --git a/hadoop-shim-impls/pom.xml b/hadoop-shim-impls/pom.xml
index 3e40c94..425155d 100644
--- a/hadoop-shim-impls/pom.xml
+++ b/hadoop-shim-impls/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <artifactId>tez</artifactId>
     <groupId>org.apache.tez</groupId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>hadoop-shim-impls</artifactId>
   <packaging>pom</packaging>
diff --git a/hadoop-shim/pom.xml b/hadoop-shim/pom.xml
index c18d449..c2a36fc 100644
--- a/hadoop-shim/pom.xml
+++ b/hadoop-shim/pom.xml
@@ -20,7 +20,7 @@
   <parent>
      <artifactId>tez</artifactId>
      <groupId>org.apache.tez</groupId>
-     <version>0.8.3-SNAPSHOT</version>
+     <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>hadoop-shim</artifactId>
 
diff --git a/pom.xml b/pom.xml
index 2274d3c..e18cef6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
   <groupId>org.apache.tez</groupId>
   <artifactId>tez</artifactId>
   <packaging>pom</packaging>
-  <version>0.8.3-SNAPSHOT</version>
+  <version>0.8.4-SNAPSHOT</version>
   <name>tez</name>
 
   <licenses>
diff --git a/tez-api/pom.xml b/tez-api/pom.xml
index 7a72ed5..455947c 100644
--- a/tez-api/pom.xml
+++ b/tez-api/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-api</artifactId>
 
diff --git a/tez-common/pom.xml b/tez-common/pom.xml
index f710d84..85267ab 100644
--- a/tez-common/pom.xml
+++ b/tez-common/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-common</artifactId>
 
diff --git a/tez-dag/pom.xml b/tez-dag/pom.xml
index 45a3c3f..59a28b4 100644
--- a/tez-dag/pom.xml
+++ b/tez-dag/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <properties>
     <tez.component>tez-dag</tez.component>
diff --git a/tez-dist/pom.xml b/tez-dist/pom.xml
index 3201d4f..8400318 100644
--- a/tez-dist/pom.xml
+++ b/tez-dist/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-dist</artifactId>
 
diff --git a/tez-examples/pom.xml b/tez-examples/pom.xml
index 01f915c..b9b1b0b 100644
--- a/tez-examples/pom.xml
+++ b/tez-examples/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
 
   <artifactId>tez-examples</artifactId>
diff --git a/tez-ext-service-tests/pom.xml b/tez-ext-service-tests/pom.xml
index 6a5c344..0740fc6 100644
--- a/tez-ext-service-tests/pom.xml
+++ b/tez-ext-service-tests/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <artifactId>tez</artifactId>
     <groupId>org.apache.tez</groupId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
 
   <artifactId>tez-ext-service-tests</artifactId>
diff --git a/tez-mapreduce/pom.xml b/tez-mapreduce/pom.xml
index 909a9f6..a56c2d5 100644
--- a/tez-mapreduce/pom.xml
+++ b/tez-mapreduce/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-mapreduce</artifactId>
 
diff --git a/tez-plugins/pom.xml b/tez-plugins/pom.xml
index 06a7f61..902354a 100644
--- a/tez-plugins/pom.xml
+++ b/tez-plugins/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-plugins</artifactId>
   <packaging>pom</packaging>
diff --git a/tez-plugins/tez-history-parser/pom.xml b/tez-plugins/tez-history-parser/pom.xml
index b9fb183..389ae1b 100644
--- a/tez-plugins/tez-history-parser/pom.xml
+++ b/tez-plugins/tez-history-parser/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez-plugins</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-history-parser</artifactId>
 
diff --git a/tez-plugins/tez-yarn-timeline-cache-plugin/pom.xml b/tez-plugins/tez-yarn-timeline-cache-plugin/pom.xml
index 2948e96..4314bb9 100644
--- a/tez-plugins/tez-yarn-timeline-cache-plugin/pom.xml
+++ b/tez-plugins/tez-yarn-timeline-cache-plugin/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez-plugins</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-yarn-timeline-cache-plugin</artifactId>
 
diff --git a/tez-plugins/tez-yarn-timeline-history-with-acls/pom.xml b/tez-plugins/tez-yarn-timeline-history-with-acls/pom.xml
index 14535f7..0f9987d 100644
--- a/tez-plugins/tez-yarn-timeline-history-with-acls/pom.xml
+++ b/tez-plugins/tez-yarn-timeline-history-with-acls/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez-plugins</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-yarn-timeline-history-with-acls</artifactId>
 
diff --git a/tez-plugins/tez-yarn-timeline-history-with-fs/pom.xml b/tez-plugins/tez-yarn-timeline-history-with-fs/pom.xml
index 23a7f5d..d41f054 100644
--- a/tez-plugins/tez-yarn-timeline-history-with-fs/pom.xml
+++ b/tez-plugins/tez-yarn-timeline-history-with-fs/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez-plugins</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-yarn-timeline-history-with-fs</artifactId>
 
diff --git a/tez-plugins/tez-yarn-timeline-history/pom.xml b/tez-plugins/tez-yarn-timeline-history/pom.xml
index a06cd47..4240465 100644
--- a/tez-plugins/tez-yarn-timeline-history/pom.xml
+++ b/tez-plugins/tez-yarn-timeline-history/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez-plugins</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-yarn-timeline-history</artifactId>
 
diff --git a/tez-runtime-internals/pom.xml b/tez-runtime-internals/pom.xml
index bd90c77..b879aab 100644
--- a/tez-runtime-internals/pom.xml
+++ b/tez-runtime-internals/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-runtime-internals</artifactId>
 
diff --git a/tez-runtime-library/pom.xml b/tez-runtime-library/pom.xml
index cb0786e..4b905f1 100644
--- a/tez-runtime-library/pom.xml
+++ b/tez-runtime-library/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-runtime-library</artifactId>
 
diff --git a/tez-tests/pom.xml b/tez-tests/pom.xml
index 464fecf..24cdd30 100644
--- a/tez-tests/pom.xml
+++ b/tez-tests/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-tests</artifactId>
 
diff --git a/tez-tools/analyzers/job-analyzer/pom.xml b/tez-tools/analyzers/job-analyzer/pom.xml
index 7a91c90..0c33ddd 100644
--- a/tez-tools/analyzers/job-analyzer/pom.xml
+++ b/tez-tools/analyzers/job-analyzer/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez-perf-analyzer</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-job-analyzer</artifactId>
 
diff --git a/tez-tools/analyzers/pom.xml b/tez-tools/analyzers/pom.xml
index 99eaa4b..5902f3d 100644
--- a/tez-tools/analyzers/pom.xml
+++ b/tez-tools/analyzers/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez-tools</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-perf-analyzer</artifactId>
   <packaging>pom</packaging>
diff --git a/tez-tools/pom.xml b/tez-tools/pom.xml
index 3e265fb..a92f3b4 100644
--- a/tez-tools/pom.xml
+++ b/tez-tools/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-tools</artifactId>
   <packaging>pom</packaging>
diff --git a/tez-tools/tez-javadoc-tools/pom.xml b/tez-tools/tez-javadoc-tools/pom.xml
index a5e489d..139bcb5 100644
--- a/tez-tools/tez-javadoc-tools/pom.xml
+++ b/tez-tools/tez-javadoc-tools/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez-tools</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-javadoc-tools</artifactId>
 
diff --git a/tez-tools/tez-tfile-parser/pom.xml b/tez-tools/tez-tfile-parser/pom.xml
index 601ff24..5602b03 100644
--- a/tez-tools/tez-tfile-parser/pom.xml
+++ b/tez-tools/tez-tfile-parser/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez-tools</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-tfile-parser</artifactId>
 
diff --git a/tez-ui/pom.xml b/tez-ui/pom.xml
index 0237e69..6ad508c 100644
--- a/tez-ui/pom.xml
+++ b/tez-ui/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-ui</artifactId>
   <packaging>war</packaging>
diff --git a/tez-ui2/pom.xml b/tez-ui2/pom.xml
index ba1213a..5fa7469 100644
--- a/tez-ui2/pom.xml
+++ b/tez-ui2/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.tez</groupId>
     <artifactId>tez</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>0.8.4-SNAPSHOT</version>
   </parent>
   <artifactId>tez-ui2</artifactId>
   <packaging>war</packaging>