Update version to 0.8.3, update CHANGES.txt for 0.8.3 release.
diff --git a/CHANGES.txt b/CHANGES.txt
index 9e90ae5..8a9ce35 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,12 +1,6 @@
 Apache Tez Change Log
 =====================
 
-Release 0.8.4: Unreleased
-
-INCOMPATIBLE CHANGES
-
-ALL CHANGES:
-
 Release 0.8.3: 2016-04-14 
 
 INCOMPATIBLE CHANGES
diff --git a/docs/pom.xml b/docs/pom.xml
index d2c82ea..7611ab8 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -27,7 +27,7 @@
     <parent>
       <groupId>org.apache.tez</groupId>
       <artifactId>tez</artifactId>
-      <version>0.8.4-SNAPSHOT</version>
+      <version>0.8.3</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 904683b..7e4a050 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 a7d147b..1c7f9e4 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 4aca03c..58694fc 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 425155d..7fb42e8 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>hadoop-shim-impls</artifactId>
   <packaging>pom</packaging>
diff --git a/hadoop-shim/pom.xml b/hadoop-shim/pom.xml
index c2a36fc..7678b2d 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>0.8.4-SNAPSHOT</version>
+     <version>0.8.3</version>
   </parent>
   <artifactId>hadoop-shim</artifactId>
 
diff --git a/pom.xml b/pom.xml
index e18cef6..977e1eb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
   <groupId>org.apache.tez</groupId>
   <artifactId>tez</artifactId>
   <packaging>pom</packaging>
-  <version>0.8.4-SNAPSHOT</version>
+  <version>0.8.3</version>
   <name>tez</name>
 
   <licenses>
diff --git a/tez-api/pom.xml b/tez-api/pom.xml
index 455947c..0e84daf 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-api</artifactId>
 
diff --git a/tez-common/pom.xml b/tez-common/pom.xml
index 85267ab..d27ff4d 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-common</artifactId>
 
diff --git a/tez-dag/pom.xml b/tez-dag/pom.xml
index 59a28b4..549d7bd 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <properties>
     <tez.component>tez-dag</tez.component>
diff --git a/tez-dist/pom.xml b/tez-dist/pom.xml
index 8400318..011962a 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-dist</artifactId>
 
diff --git a/tez-examples/pom.xml b/tez-examples/pom.xml
index b9b1b0b..750042e 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
 
   <artifactId>tez-examples</artifactId>
diff --git a/tez-ext-service-tests/pom.xml b/tez-ext-service-tests/pom.xml
index 0740fc6..f77ab75 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
 
   <artifactId>tez-ext-service-tests</artifactId>
diff --git a/tez-mapreduce/pom.xml b/tez-mapreduce/pom.xml
index a56c2d5..52cbab3 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-mapreduce</artifactId>
 
diff --git a/tez-plugins/pom.xml b/tez-plugins/pom.xml
index 902354a..027448a 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 389ae1b..48c3aa1 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 4314bb9..8a2122d 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 0f9987d..960c584 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 d41f054..179006f 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 4240465..baa0d80 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-yarn-timeline-history</artifactId>
 
diff --git a/tez-runtime-internals/pom.xml b/tez-runtime-internals/pom.xml
index b879aab..d45668b 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-runtime-internals</artifactId>
 
diff --git a/tez-runtime-library/pom.xml b/tez-runtime-library/pom.xml
index 4b905f1..74d4e15 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-runtime-library</artifactId>
 
diff --git a/tez-tests/pom.xml b/tez-tests/pom.xml
index 24cdd30..d388039 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 0c33ddd..738a81f 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-job-analyzer</artifactId>
 
diff --git a/tez-tools/analyzers/pom.xml b/tez-tools/analyzers/pom.xml
index 5902f3d..01f30f6 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-perf-analyzer</artifactId>
   <packaging>pom</packaging>
diff --git a/tez-tools/pom.xml b/tez-tools/pom.xml
index a92f3b4..5076613 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 139bcb5..9e8c2e3 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</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 5602b03..62d331a 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-tfile-parser</artifactId>
 
diff --git a/tez-ui/pom.xml b/tez-ui/pom.xml
index 6ad508c..f2e0124 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-ui</artifactId>
   <packaging>war</packaging>
diff --git a/tez-ui2/pom.xml b/tez-ui2/pom.xml
index 5fa7469..79c06d5 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>0.8.4-SNAPSHOT</version>
+    <version>0.8.3</version>
   </parent>
   <artifactId>tez-ui2</artifactId>
   <packaging>war</packaging>