diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76433c34..e515a59c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+### Release 2.2.3 (September 04, 2019)
+
+[Milestone#38](https://github.com/awslabs/amazon-kinesis-client/milestone/38)
+* Fix to prevent data loss and stuck shards in the event of failed records delivery in Polling readers
+  * [PR#603](https://github.com/awslabs/amazon-kinesis-client/pull/603)
+
 ### Release 2.2.2 (August 19, 2019)
 
 [Milestone#36](https://github.com/awslabs/amazon-kinesis-client/milestone/36)
diff --git a/README.md b/README.md
index 0642dd41..96472a36 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ The recommended way to use the KCL for Java is to consume it from Maven.
   <dependency>
       <groupId>software.amazon.kinesis</groupId>
       <artifactId>amazon-kinesis-client</artifactId>
-      <version>2.2.2</version>
+      <version>2.2.3</version>
   </dependency>
   ```
 
@@ -60,7 +60,12 @@ The recommended way to use the KCL for Java is to consume it from Maven.
 
 ## Release Notes
 
-### Latest Release (2.2.2 - August 19, 2019)
+### Latest Release (2.2.3 - September 04, 2019)
+[Milestone#38](https://github.com/awslabs/amazon-kinesis-client/milestone/38)
+* Fix to prevent data loss and stuck shards in the event of failed records delivery in Polling readers
+  * [PR#603](https://github.com/awslabs/amazon-kinesis-client/pull/603)
+
+### Related Prior Release (2.2.2 - August 19, 2019)
 [Milestone#36](https://github.com/awslabs/amazon-kinesis-client/milestone/36)
 * Fix to prevent invalid ShardConsumer state transitions due to rejected executor service executions.
   * [PR#560](https://github.com/awslabs/amazon-kinesis-client/pull/560)
diff --git a/amazon-kinesis-client-multilang/pom.xml b/amazon-kinesis-client-multilang/pom.xml
index 1db2f0db..169f6d38 100644
--- a/amazon-kinesis-client-multilang/pom.xml
+++ b/amazon-kinesis-client-multilang/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>amazon-kinesis-client-pom</artifactId>
     <groupId>software.amazon.kinesis</groupId>
-    <version>2.2.3-SNAPSHOT</version>
+    <version>2.2.3</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/amazon-kinesis-client/pom.xml b/amazon-kinesis-client/pom.xml
index 7cb99e53..6c3df600 100644
--- a/amazon-kinesis-client/pom.xml
+++ b/amazon-kinesis-client/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>software.amazon.kinesis</groupId>
     <artifactId>amazon-kinesis-client-pom</artifactId>
-    <version>2.2.3-SNAPSHOT</version>
+    <version>2.2.3</version>
   </parent>
 
   <artifactId>amazon-kinesis-client</artifactId>
diff --git a/amazon-kinesis-client/src/main/java/software/amazon/kinesis/retrieval/RetrievalConfig.java b/amazon-kinesis-client/src/main/java/software/amazon/kinesis/retrieval/RetrievalConfig.java
index edc9d6ce..2d19e1e9 100644
--- a/amazon-kinesis-client/src/main/java/software/amazon/kinesis/retrieval/RetrievalConfig.java
+++ b/amazon-kinesis-client/src/main/java/software/amazon/kinesis/retrieval/RetrievalConfig.java
@@ -34,7 +34,7 @@ public class RetrievalConfig {
      */
     public static final String KINESIS_CLIENT_LIB_USER_AGENT = "amazon-kinesis-client-library-java";
 
-    public static final String KINESIS_CLIENT_LIB_USER_AGENT_VERSION = "2.2.3-SNAPSHOT";
+    public static final String KINESIS_CLIENT_LIB_USER_AGENT_VERSION = "2.2.3";
 
     /**
      * Client used to make calls to Kinesis for records retrieval
diff --git a/pom.xml b/pom.xml
index 4516a685..ba8e1881 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
   <artifactId>amazon-kinesis-client-pom</artifactId>
   <packaging>pom</packaging>
   <name>Amazon Kinesis Client Library</name>
-  <version>2.2.3-SNAPSHOT</version>
+  <version>2.2.3</version>
   <description>The Amazon Kinesis Client Library for Java enables Java developers to easily consume and process data
     from Amazon Kinesis.
   </description>