diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7a66272..b1e9086e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 1.2.0
+- Add user profile service.
+
 ## 1.1.1
 - Updated datafile parsing to be able to handle additional fields.
 
@@ -6,7 +9,7 @@
 - Gracefully handle empty entity IDs.
 - Added event tags to track API to allow users to pass in event metadata.
 - Deprecated the `eventValue` parameter from the track method. Should use `eventTags` to pass in event value instead.
-- Relaxed restriction on monolog package. 
+- Relaxed restriction on monolog package.
 
 ## 1.0.1
 - Updated to support more versions of json-schema package.
diff --git a/src/Optimizely/Event/Builder/EventBuilder.php b/src/Optimizely/Event/Builder/EventBuilder.php
index 208abcbe..2db3404d 100644
--- a/src/Optimizely/Event/Builder/EventBuilder.php
+++ b/src/Optimizely/Event/Builder/EventBuilder.php
@@ -33,7 +33,7 @@ class EventBuilder
     /**
      * @const string Version of the Optimizely PHP SDK.
      */
-    const SDK_VERSION = '1.1.1';
+    const SDK_VERSION = '1.2.0';
 
     /**
      * @var string URL to send impression event to.
diff --git a/tests/EventTests/EventBuilderTest.php b/tests/EventTests/EventBuilderTest.php
index 94a172ba..8012d96d 100644
--- a/tests/EventTests/EventBuilderTest.php
+++ b/tests/EventTests/EventBuilderTest.php
@@ -49,7 +49,7 @@ public function testCreateImpressionEventNoAttributes()
                 'layerId' => '7719770039',
                 'visitorId' => 'testUserId',
                 'clientEngine' => 'php-sdk',
-                'clientVersion' => '1.1.1',
+                'clientVersion' => '1.2.0',
                 'timestamp' => time() * 1000,
                 'isGlobalHoldback' => false,
                 'userFeatures' => [],
@@ -84,7 +84,7 @@ public function testCreateImpressionEventWithAttributes()
                 'layerId' => '7719770039',
                 'visitorId' => 'testUserId',
                 'clientEngine' => 'php-sdk',
-                'clientVersion' => '1.1.1',
+                'clientVersion' => '1.2.0',
                 'timestamp' => time() * 1000,
                 'isGlobalHoldback' => false,
                 'userFeatures' => [[
@@ -129,7 +129,7 @@ public function testCreateConversionEventNoAttributesNoValue()
                 'visitorId' => 'testUserId',
                 'revision' => '15',
                 'clientEngine' => 'php-sdk',
-                'clientVersion' => '1.1.1',
+                'clientVersion' => '1.2.0',
                 'userFeatures' => [],
                 'isGlobalHoldback' => false,
                 'timestamp' => time() * 1000,
@@ -173,7 +173,7 @@ public function testCreateConversionEventWithAttributesNoValue()
                 'visitorId' => 'testUserId',
                 'revision' => '15',
                 'clientEngine' => 'php-sdk',
-                'clientVersion' => '1.1.1',
+                'clientVersion' => '1.2.0',
                 'isGlobalHoldback' => false,
                 'timestamp' => time() * 1000,
                 'eventFeatures' => [],
@@ -228,7 +228,7 @@ public function testCreateConversionEventNoAttributesWithValue()
                 'visitorId' => 'testUserId',
                 'revision' => '15',
                 'clientEngine' => 'php-sdk',
-                'clientVersion' => '1.1.1',
+                'clientVersion' => '1.2.0',
                 'userFeatures' => [],
                 'isGlobalHoldback' => false,
                 'timestamp' => time() * 1000,
@@ -282,7 +282,7 @@ public function testCreateConversionEventWithAttributesWithValue()
                 'visitorId' => 'testUserId',
                 'revision' => '15',
                 'clientEngine' => 'php-sdk',
-                'clientVersion' => '1.1.1',
+                'clientVersion' => '1.2.0',
                 'isGlobalHoldback' => false,
                 'timestamp' => time() * 1000,
                 'eventFeatures' => [
@@ -356,7 +356,7 @@ public function testCreateConversionEventNoAttributesWithInvalidValue()
                 'visitorId' => 'testUserId',
                 'revision' => '15',
                 'clientEngine' => 'php-sdk',
-                'clientVersion' => '1.1.1',
+                'clientVersion' => '1.2.0',
                 'userFeatures' => [],
                 'isGlobalHoldback' => false,
                 'timestamp' => time() * 1000,