diff --git a/packages/optimizely-sdk/CHANGELOG.MD b/packages/optimizely-sdk/CHANGELOG.MD
index 4a3086ef8..556d695e5 100644
--- a/packages/optimizely-sdk/CHANGELOG.MD
+++ b/packages/optimizely-sdk/CHANGELOG.MD
@@ -7,6 +7,19 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [4.8.0] - November 29, 2021
+
+### New Features
+- Added a Lite bundle which does not include Data file manager and Event Processor packages. This reduces the bundle size up to 20% and is helpful for some platforms (such as edge service providers) that do not need extended functionality offered by these packages.
+- Removed Client engine validation in the SDK to allow tracking events from new clients without modifying SDK code.
+
+### Performance Improvements
+- Reduced SDK client initialization time by removing `OptimizelyConfig` creation from initialization. The `OptimizelyConfig` object is now created on the first call to `getOptimizelyConfig` API.
+- Made Improvements to logging mechanism. The SDK no longer concatenates and formats messages which do not qualify for the log level set by the user.
+
+### Changed
+- Updated `json-schema` package version to `0.4.0` to fix a high-severity vulnerability ([Prototype Pollution](https://snyk.io/vuln/SNYK-JS-JSONSCHEMA-1920922)).
+
 ## [4.8.0-beta.2] - November 1, 2021
 
 ### New Features
diff --git a/packages/optimizely-sdk/lib/index.browser.tests.js b/packages/optimizely-sdk/lib/index.browser.tests.js
index cfdc06933..dff366e43 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, '4.8.0-beta.2');
+        assert.equal(optlyInstance.clientVersion, '4.8.0');
       });
 
       it('should set the JavaScript client engine and version', function() {
diff --git a/packages/optimizely-sdk/lib/index.lite.tests.js b/packages/optimizely-sdk/lib/index.lite.tests.js
index 73ffbd3a6..8817d0fa8 100644
--- a/packages/optimizely-sdk/lib/index.lite.tests.js
+++ b/packages/optimizely-sdk/lib/index.lite.tests.js
@@ -76,7 +76,7 @@
          optlyInstance.onReady().catch(function() {});
  
          assert.instanceOf(optlyInstance, Optimizely);
-         assert.equal(optlyInstance.clientVersion, '4.8.0-beta.2');
+         assert.equal(optlyInstance.clientVersion, '4.8.0');
        });
      });
    });
diff --git a/packages/optimizely-sdk/lib/index.node.tests.js b/packages/optimizely-sdk/lib/index.node.tests.js
index ac57a3b93..edc932c1f 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, '4.8.0-beta.2');
+        assert.equal(optlyInstance.clientVersion, '4.8.0');
       });
 
       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 d6a6e008e..01475ce1d 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, '4.8.0-beta.2');
+        assert.equal(optlyInstance.clientVersion, '4.8.0');
       });
 
       it('should set the React Native JS client engine and javascript SDK version', function() {
diff --git a/packages/optimizely-sdk/lib/utils/enums/index.ts b/packages/optimizely-sdk/lib/utils/enums/index.ts
index b15220f0c..69a670d89 100644
--- a/packages/optimizely-sdk/lib/utils/enums/index.ts
+++ b/packages/optimizely-sdk/lib/utils/enums/index.ts
@@ -182,7 +182,7 @@ export const NODE_CLIENT_ENGINE = 'node-sdk';
 export const REACT_CLIENT_ENGINE = 'react-sdk';
 export const REACT_NATIVE_CLIENT_ENGINE = 'react-native-sdk';
 export const REACT_NATIVE_JS_CLIENT_ENGINE = 'react-native-js-sdk';
-export const NODE_CLIENT_VERSION = '4.8.0-beta.2';
+export const NODE_CLIENT_VERSION = '4.8.0';
 
 export const NOTIFICATION_TYPES = notificationTypesEnum;
 
diff --git a/packages/optimizely-sdk/package-lock.json b/packages/optimizely-sdk/package-lock.json
index 0bf725d1d..0198b0830 100644
--- a/packages/optimizely-sdk/package-lock.json
+++ b/packages/optimizely-sdk/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@optimizely/optimizely-sdk",
-  "version": "4.8.0-beta.2",
+  "version": "4.8.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/packages/optimizely-sdk/package.json b/packages/optimizely-sdk/package.json
index e02408522..243006680 100644
--- a/packages/optimizely-sdk/package.json
+++ b/packages/optimizely-sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@optimizely/optimizely-sdk",
-  "version": "4.8.0-beta.2",
+  "version": "4.8.0",
   "description": "JavaScript SDK for Optimizely X Full Stack",
   "module": "dist/optimizely.browser.es.min.js",
   "main": "dist/optimizely.node.min.js",