diff --git a/packages/optimizely-sdk/CHANGELOG.MD b/packages/optimizely-sdk/CHANGELOG.MD
index cbcae5156..da022239f 100644
--- a/packages/optimizely-sdk/CHANGELOG.MD
+++ b/packages/optimizely-sdk/CHANGELOG.MD
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [4.3.1] - October 5, 2020
+
+### Bug fixes
+
+-  Exported `OptimizelyConfig` and `UserAttributes` type in TypeScript type definitions ([#587](https://github.com/optimizely/javascript-sdk/pull/587))
+
 ## [4.3.0] - October 1, 2020
 
 ### New Features
diff --git a/packages/optimizely-sdk/lib/index.browser.tests.js b/packages/optimizely-sdk/lib/index.browser.tests.js
index 2c49a6a59..5d7cec571 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, '4.3.0');
+        assert.equal(optlyInstance.clientVersion, '4.3.1');
       });
 
       it('should set the JavaScript client engine and version', function() {
diff --git a/packages/optimizely-sdk/lib/index.d.ts b/packages/optimizely-sdk/lib/index.d.ts
index 3bc79687c..7222ea530 100644
--- a/packages/optimizely-sdk/lib/index.d.ts
+++ b/packages/optimizely-sdk/lib/index.d.ts
@@ -30,6 +30,10 @@ declare module '@optimizely/optimizely-sdk' {
 
   export const eventDispatcher: EventDispatcher;
 
+  export type UserAttributes = import('./shared_types').UserAttributes;
+
+  export type OptimizelyConfig = import('./shared_types').OptimizelyConfig;
+
   interface DatafileOptions {
     autoUpdate?: boolean;
     updateInterval?: number;
@@ -66,72 +70,72 @@ declare module '@optimizely/optimizely-sdk' {
     activate(
       experimentKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): string | null;
     track(
       eventKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes,
+      attributes?: UserAttributes,
       eventTags?: EventTags
     ): void;
     getVariation(
       experimentKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): string | null;
     setForcedVariation(experimentKey: string, userId: string, variationKey: string | null): boolean;
     getForcedVariation(experimentKey: string, userId: string): string | null;
     isFeatureEnabled(
       featureKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): boolean;
     getEnabledFeatures(
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): string[];
     getFeatureVariable(
       featureKey: string,
       variableKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): unknown;
     getFeatureVariableBoolean(
       featureKey: string,
       variableKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): boolean | null;
     getFeatureVariableDouble(
       featureKey: string,
       variableKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): number | null;
     getFeatureVariableInteger(
       featureKey: string,
       variableKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): number | null;
     getFeatureVariableString(
       featureKey: string,
       variableKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): string | null;
     getFeatureVariableJSON(
       featureKey: string,
       variableKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): unknown;
     getAllFeatureVariables(
       featureKey: string,
       userId: string,
-      attributes?: import('./shared_types').UserAttributes
+      attributes?: UserAttributes
     ): { [variableKey: string]: unknown };
-    getOptimizelyConfig(): import('./shared_types').OptimizelyConfig | null;
+    getOptimizelyConfig(): OptimizelyConfig | null;
     onReady(options?: { timeout?: number }): Promise<{ success: boolean; reason?: string }>;
     close(): Promise<{ success: boolean; reason?: string }>;
   }
@@ -175,7 +179,7 @@ declare module '@optimizely/optimizely-sdk' {
 
   export interface ListenerPayload {
     userId: string;
-    attributes: import('./shared_types').UserAttributes;
+    attributes: UserAttributes;
   }
 
   export interface ActivateListenerPayload extends ListenerPayload {
diff --git a/packages/optimizely-sdk/lib/index.node.tests.js b/packages/optimizely-sdk/lib/index.node.tests.js
index bf04ee20c..273239eeb 100644
--- a/packages/optimizely-sdk/lib/index.node.tests.js
+++ b/packages/optimizely-sdk/lib/index.node.tests.js
@@ -90,7 +90,7 @@ describe('optimizelyFactory', function() {
         optlyInstance.onReady().catch(function() {});
 
         assert.instanceOf(optlyInstance, Optimizely);
-        assert.equal(optlyInstance.clientVersion, '4.3.0');
+        assert.equal(optlyInstance.clientVersion, '4.3.1');
       });
 
       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 a1ab74270..556451847 100644
--- a/packages/optimizely-sdk/lib/index.react_native.tests.js
+++ b/packages/optimizely-sdk/lib/index.react_native.tests.js
@@ -89,7 +89,7 @@ describe('javascript-sdk/react-native', function() {
         optlyInstance.onReady().catch(function() {});
 
         assert.instanceOf(optlyInstance, Optimizely);
-        assert.equal(optlyInstance.clientVersion, '4.3.0');
+        assert.equal(optlyInstance.clientVersion, '4.3.1');
       });
 
       it('should set the Javascript client engine and version', function() {
diff --git a/packages/optimizely-sdk/lib/utils/enums/index.ts b/packages/optimizely-sdk/lib/utils/enums/index.ts
index e4dde2d48..af8e18af2 100644
--- a/packages/optimizely-sdk/lib/utils/enums/index.ts
+++ b/packages/optimizely-sdk/lib/utils/enums/index.ts
@@ -173,7 +173,7 @@ export const CONTROL_ATTRIBUTES = {
 export const JAVASCRIPT_CLIENT_ENGINE = 'javascript-sdk';
 export const NODE_CLIENT_ENGINE = 'node-sdk';
 export const REACT_CLIENT_ENGINE = 'react-sdk';
-export const NODE_CLIENT_VERSION = '4.3.0';
+export const NODE_CLIENT_VERSION = '4.3.1';
 
 export const VALID_CLIENT_ENGINES = [
   NODE_CLIENT_ENGINE,
diff --git a/packages/optimizely-sdk/package-lock.json b/packages/optimizely-sdk/package-lock.json
index b066ba741..3abaf9915 100644
--- a/packages/optimizely-sdk/package-lock.json
+++ b/packages/optimizely-sdk/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@optimizely/optimizely-sdk",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/packages/optimizely-sdk/package.json b/packages/optimizely-sdk/package.json
index 05294ee12..6dae0c7ea 100644
--- a/packages/optimizely-sdk/package.json
+++ b/packages/optimizely-sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@optimizely/optimizely-sdk",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "description": "JavaScript SDK for Optimizely X Full Stack",
   "module": "dist/optimizely.browser.es.min.js",
   "main": "dist/optimizely.node.min.js",