diff --git a/packages/optimizely-sdk/CHANGELOG.MD b/packages/optimizely-sdk/CHANGELOG.MD
index de17225d1..908d5eb6a 100644
--- a/packages/optimizely-sdk/CHANGELOG.MD
+++ b/packages/optimizely-sdk/CHANGELOG.MD
@@ -7,6 +7,22 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [4.5.0-beta] - February 10, 2021
+
+### New Features
+
+- Introducing a new primary interface for retrieving feature flag status, configuration and associated experiment decisions for users ([#632](https://github.com/optimizely/javascript-sdk/pull/632), [#634](https://github.com/optimizely/javascript-sdk/pull/634), [#635](https://github.com/optimizely/javascript-sdk/pull/635), [#636](https://github.com/optimizely/javascript-sdk/pull/636), [#640](https://github.com/optimizely/javascript-sdk/pull/640), [#642](https://github.com/optimizely/javascript-sdk/pull/642), [#643](https://github.com/optimizely/javascript-sdk/pull/643), [#644](https://github.com/optimizely/javascript-sdk/pull/644), [#647](https://github.com/optimizely/javascript-sdk/pull/647), [#648](https://github.com/optimizely/javascript-sdk/pull/648)). The new `OptimizelyUserContext` class is instantiated with `createUserContext` and exposes the following APIs to get `OptimizelyDecision`:
+
+	- setAttribute
+	- decide
+	- decideAll
+	- decideForKeys
+	- trackEvent
+
+- For details, refer to our documentation page:
+  - browser version: [https://docs.developers.optimizely.com/full-stack/v4.0/docs/javascript-sdk](https://docs.developers.optimizely.com/full-stack/v4.0/docs/javascript-sdk).
+  - Node version: [https://docs.developers.optimizely.com/full-stack/v4.0/docs/javascript-node-sdk](https://docs.developers.optimizely.com/full-stack/v4.0/docs/javascript-node-sdk).
+
 ## [4.4.3] - November 23, 2020
 
 ### Bug fixes
diff --git a/packages/optimizely-sdk/lib/index.browser.tests.js b/packages/optimizely-sdk/lib/index.browser.tests.js
index e3951393e..03bdf1477 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, '4.4.3');
+        assert.equal(optlyInstance.clientVersion, '4.5.0-beta');
       });
 
       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 53db3f7ba..9eb768dfe 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, '4.4.3');
+        assert.equal(optlyInstance.clientVersion, '4.5.0-beta');
       });
 
       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 7ae63ce5f..face67162 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, '4.4.3');
+        assert.equal(optlyInstance.clientVersion, '4.5.0-beta');
       });
 
       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 b754f5b43..4dd95847f 100644
--- a/packages/optimizely-sdk/lib/utils/enums/index.ts
+++ b/packages/optimizely-sdk/lib/utils/enums/index.ts
@@ -176,7 +176,7 @@ 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 = '4.4.3';
+export const NODE_CLIENT_VERSION = '4.5.0-beta';
 
 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 49154d717..ffab966c2 100644
--- a/packages/optimizely-sdk/package-lock.json
+++ b/packages/optimizely-sdk/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@optimizely/optimizely-sdk",
-  "version": "4.4.3",
+  "version": "4.5.0-beta",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/packages/optimizely-sdk/package.json b/packages/optimizely-sdk/package.json
index 6d5b047b6..3f881a230 100644
--- a/packages/optimizely-sdk/package.json
+++ b/packages/optimizely-sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@optimizely/optimizely-sdk",
-  "version": "4.4.3",
+  "version": "4.5.0-beta",
   "description": "JavaScript SDK for Optimizely X Full Stack",
   "module": "dist/optimizely.browser.es.min.js",
   "main": "dist/optimizely.node.min.js",