diff --git a/packages/optimizely-sdk/CHANGELOG.MD b/packages/optimizely-sdk/CHANGELOG.MD
index 226cbbb20..34e8056e8 100644
--- a/packages/optimizely-sdk/CHANGELOG.MD
+++ b/packages/optimizely-sdk/CHANGELOG.MD
@@ -5,8 +5,12 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [3.5.0] - February 20th, 2020
+
 ### Bug fixes
 - Fixed default event dispatcher not used in React Native entry point ([#383](https://github.com/optimizely/javascript-sdk/pull/383))
+- Fixed errors in `getOptimizelyConfig` TypeScript type definitions ([#406](https://github.com/optimizely/javascript-sdk/pull/406))
 
 ### New Features
 - Promise returned from `close` tracks the state of in-flight event dispatcher requests ([#404](https://github.com/optimizely/javascript-sdk/pull/404))
diff --git a/packages/optimizely-sdk/lib/index.browser.tests.js b/packages/optimizely-sdk/lib/index.browser.tests.js
index 0d3404ad3..3b1bccb62 100644
--- a/packages/optimizely-sdk/lib/index.browser.tests.js
+++ b/packages/optimizely-sdk/lib/index.browser.tests.js
@@ -148,7 +148,7 @@ describe('javascript-sdk', function() {
         optlyInstance.onReady().catch(function() {});
 
         assert.instanceOf(optlyInstance, Optimizely);
-        assert.equal(optlyInstance.clientVersion, '3.4.1');
+        assert.equal(optlyInstance.clientVersion, '3.5.0');
       });
 
       it('should set the JavaScript client engine and version', function() {
diff --git a/packages/optimizely-sdk/lib/index.node.tests.js b/packages/optimizely-sdk/lib/index.node.tests.js
index a2f164143..8811e4aa0 100644
--- a/packages/optimizely-sdk/lib/index.node.tests.js
+++ b/packages/optimizely-sdk/lib/index.node.tests.js
@@ -92,7 +92,7 @@ describe('optimizelyFactory', function() {
         optlyInstance.onReady().catch(function() {});
 
         assert.instanceOf(optlyInstance, Optimizely);
-        assert.equal(optlyInstance.clientVersion, '3.4.1');
+        assert.equal(optlyInstance.clientVersion, '3.5.0');
       });
 
       describe('event processor configuration', function() {
diff --git a/packages/optimizely-sdk/lib/index.react_native.tests.js b/packages/optimizely-sdk/lib/index.react_native.tests.js
index e6e2014ee..3270d7677 100644
--- a/packages/optimizely-sdk/lib/index.react_native.tests.js
+++ b/packages/optimizely-sdk/lib/index.react_native.tests.js
@@ -92,7 +92,7 @@ describe('javascript-sdk/react-native', function() {
         optlyInstance.onReady().catch(function() {});
 
         assert.instanceOf(optlyInstance, Optimizely);
-        assert.equal(optlyInstance.clientVersion, '3.4.1');
+        assert.equal(optlyInstance.clientVersion, '3.5.0');
       });
 
       it('should set the JavaScript client engine and version', function() {
diff --git a/packages/optimizely-sdk/lib/utils/enums/index.js b/packages/optimizely-sdk/lib/utils/enums/index.js
index e5db986cc..ea603019d 100644
--- a/packages/optimizely-sdk/lib/utils/enums/index.js
+++ b/packages/optimizely-sdk/lib/utils/enums/index.js
@@ -159,7 +159,7 @@ exports.CONTROL_ATTRIBUTES = {
 exports.JAVASCRIPT_CLIENT_ENGINE = 'javascript-sdk';
 exports.NODE_CLIENT_ENGINE = 'node-sdk';
 exports.REACT_CLIENT_ENGINE = 'react-sdk';
-exports.NODE_CLIENT_VERSION = '3.4.1';
+exports.NODE_CLIENT_VERSION = '3.5.0';
 
 exports.VALID_CLIENT_ENGINES = [
   exports.NODE_CLIENT_ENGINE,
diff --git a/packages/optimizely-sdk/package-lock.json b/packages/optimizely-sdk/package-lock.json
index 4c694f342..71da30388 100644
--- a/packages/optimizely-sdk/package-lock.json
+++ b/packages/optimizely-sdk/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@optimizely/optimizely-sdk",
-  "version": "3.4.1",
+  "version": "3.5.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/packages/optimizely-sdk/package.json b/packages/optimizely-sdk/package.json
index cc2bc921f..3304b396e 100644
--- a/packages/optimizely-sdk/package.json
+++ b/packages/optimizely-sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@optimizely/optimizely-sdk",
-  "version": "3.4.1",
+  "version": "3.5.0",
   "description": "JavaScript SDK for Optimizely X Full Stack",
   "main": "lib/index.node.js",
   "browser": "lib/index.browser.js",