diff --git a/META-INF/MANIFEST.MF b/META-INF/MANIFEST.MF
index 9665aebd..3a8282e4 100644
--- a/META-INF/MANIFEST.MF
+++ b/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Amazon Kinesis Client Library for Java
 Bundle-SymbolicName: com.amazonaws.kinesisclientlibrary;singleton:=true
-Bundle-Version: 1.8.2
+Bundle-Version: 1.8.3
 Bundle-Vendor: Amazon Technologies, Inc
 Bundle-RequiredExecutionEnvironment: JavaSE-1.7
 Require-Bundle: org.apache.commons.codec;bundle-version="1.6",
diff --git a/README.md b/README.md
index 2f2c0fd6..ddaa6194 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,12 @@ For producer-side developers using the **[Kinesis Producer Library (KPL)][kinesi
 To make it easier for developers to write record processors in other languages, we have implemented a Java based daemon, called MultiLangDaemon that does all the heavy lifting. Our approach has the daemon spawn a sub-process, which in turn runs the record processor, which can be written in any language. The MultiLangDaemon process and the record processor sub-process communicate with each other over [STDIN and STDOUT using a defined protocol][multi-lang-protocol]. There will be a one to one correspondence amongst record processors, child processes, and shards. For Python developers specifically, we have abstracted these implementation details away and [expose an interface][kclpy] that enables you to focus on writing record processing logic in Python. This approach enables KCL to be language agnostic, while providing identical features and similar parallel processing model across all languages.
 
 ## Release Notes
+### Release 1.8.3 (September 22, 2017)
+* Call shutdown on the retriever when the record processor is being shutdown  
+  This fixes a bug that could leak threads if using the [`AsynchronousGetRecordsRetrievalStrategy`](https://github.com/awslabs/amazon-kinesis-client/blob/9a82b6bd05b3c9c5f8581af007141fa6d5f0fc4e/src/main/java/com/amazonaws/services/kinesis/clientlibrary/lib/worker/AsynchronousGetRecordsRetrievalStrategy.java#L42) is being used.  
+  The asynchronous retriever is only used when [`KinesisClientLibConfiguration#retryGetRecordsInSeconds`](https://github.com/awslabs/amazon-kinesis-client/blob/01d2688bc6e68fd3fe5cb698cb65299d67ac930d/src/main/java/com/amazonaws/services/kinesis/clientlibrary/lib/worker/KinesisClientLibConfiguration.java#L227), and [`KinesisClientLibConfiguration#maxGetRecordsThreadPool`](https://github.com/awslabs/amazon-kinesis-client/blob/01d2688bc6e68fd3fe5cb698cb65299d67ac930d/src/main/java/com/amazonaws/services/kinesis/clientlibrary/lib/worker/KinesisClientLibConfiguration.java#L230) are set.
+  * [PR #222](https://github.com/awslabs/amazon-kinesis-client/pull/222)
+
 ### Release 1.8.2 (September 20, 2017)
 * Add support for two phase checkpoints  
   Applications can now set a pending checkpoint, before completing the checkpoint operation. Once the application has completed its checkpoint steps, the final checkpoint will clear the pending checkpoint.  
diff --git a/pom.xml b/pom.xml
index 4c281f20..61c8c6cf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
   <artifactId>amazon-kinesis-client</artifactId>
   <packaging>jar</packaging>
   <name>Amazon Kinesis Client Library for Java</name>
-  <version>1.8.3-SNAPSHOT</version>
+  <version>1.8.3</version>
   <description>The Amazon Kinesis Client Library for Java enables Java developers to easily consume and process data
     from Amazon Kinesis.
   </description>
diff --git a/src/main/java/com/amazonaws/services/kinesis/clientlibrary/lib/worker/KinesisClientLibConfiguration.java b/src/main/java/com/amazonaws/services/kinesis/clientlibrary/lib/worker/KinesisClientLibConfiguration.java
index 1bfd0fc0..c970daa0 100644
--- a/src/main/java/com/amazonaws/services/kinesis/clientlibrary/lib/worker/KinesisClientLibConfiguration.java
+++ b/src/main/java/com/amazonaws/services/kinesis/clientlibrary/lib/worker/KinesisClientLibConfiguration.java
@@ -126,7 +126,7 @@ public class KinesisClientLibConfiguration {
     /**
      * User agent set when Amazon Kinesis Client Library makes AWS requests.
      */
-    public static final String KINESIS_CLIENT_LIB_USER_AGENT = "amazon-kinesis-client-library-java-1.8.2";
+    public static final String KINESIS_CLIENT_LIB_USER_AGENT = "amazon-kinesis-client-library-java-1.8.3";
 
     /**
      * KCL will validate client provided sequence numbers with a call to Amazon Kinesis before checkpointing for calls