diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ab42f07b..216ef2658 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 Change Log
 ==========
+## Version 2.2.3
+_2018-05-21_
+* New: Abstract `DeleteUserData()` for Assistant, Conversation and Discovery ([#387](https://github.com/watson-developer-cloud/unity-sdk/pull/387)).
+* Fixed: Replaced `ToUnixTimeInSeconds()` with dotnet 3.5 equivalent ([#382](https://github.com/watson-developer-cloud/unity-sdk/issues/382), [#386](https://github.com/watson-developer-cloud/unity-sdk/pull/386)).
+* New: Get credentials for testing from internal github repo ([#4333](https://github.ibm.com/Watson/developer-experience/issues/4333), [#364](https://github.com/watson-developer-cloud/unity-sdk/pull/364)).
+* New: Warn user to `InstallDefaultReactors()` ([#328](https://github.com/watson-developer-cloud/unity-sdk/issues/328), [#380](https://github.com/watson-developer-cloud/unity-sdk/pull/380)).
+* New: Revised WSConnector for TLS 1.2 support in upcoming Unity release ([#4230](https://github.ibm.com/Watson/developer-experience/issues/4230), [#379](https://github.com/watson-developer-cloud/unity-sdk/pull/379)).
+* New: Added support for IAM authentication ([#4291](https://github.ibm.com/Watson/developer-experience/issues/4291), [#377](https://github.com/watson-developer-cloud/unity-sdk/pull/377)).
+
 ## Version 2.2.2
 * New: Send custom request headers and access response headers via `customData` object ([#4310](https://github.ibm.com/Watson/developer-experience/issues/4310), [#362](https://github.com/watson-developer-cloud/unity-sdk/pull/362)).
 * Fixed: Unresolved errors hidden by `#ifdef` ([#368](https://github.com/watson-developer-cloud/unity-sdk/issues/368), [#369](https://github.com/watson-developer-cloud/unity-sdk/pull/369))
diff --git a/Doxyfile b/Doxyfile
index c086900a0..0282a9592 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = "Watson Developer Cloud Unity SDK"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2.2.2
+PROJECT_NUMBER         = 2.2.3
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/Scripts/Utilities/Constants.cs b/Scripts/Utilities/Constants.cs
index b34816f75..dbb81cbda 100644
--- a/Scripts/Utilities/Constants.cs
+++ b/Scripts/Utilities/Constants.cs
@@ -47,7 +47,7 @@ public static class Path
         public static class String
         {
             /// <exclude />
-            public const string Version = "watson-apis-unity-sdk/2.2.2";
+            public const string Version = "watson-apis-unity-sdk/2.2.3";
             /// <exclude />
             public const string DebugDispalyQuality = "Quality: {0}";
             /// <summary>