diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4c3bcba29..4c6798a40 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,22 @@ All notable changes to this project will be documented in this file.
 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).
 
+## [6.3.0] - November 19, 2025
+
+### New Features
+- **Added Holdouts support**: Holdouts Feature Experimentation feature is now officially supported.
+- **Added configurable prediction endpoint**: Added ability to configure custom prediction endpoint for CMAB ([#1102](https://github.com/optimizely/javascript-sdk/pull/1102))
+- **Added HTTP support in NodeRequestHandler**: Added support for HTTP protocol in addition to HTTPS ([#1104](https://github.com/optimizely/javascript-sdk/pull/1104))
+- **Added TTL support for events in event store**: Events in event store now have configurable time-to-live (TTL) functionality ([#1103](https://github.com/optimizely/javascript-sdk/pull/1103))
+- **Exposed maxRetries option for createBatchEventProcessor**: Added ability to configure maximum retry attempts for batch event processing ([#1106](https://github.com/optimizely/javascript-sdk/pull/1106))
+- **Added customHeaders option to polling config manager**: Added support for custom HTTP headers in polling config manager ([#1107](https://github.com/optimizely/javascript-sdk/pull/1107))
+
+### Changed
+- **Excluded CMAB from user profile service**: CMAB experiments are now properly excluded from user profile service operations ([#1105](https://github.com/optimizely/javascript-sdk/pull/1105))
+
+### Bug Fixes
+- **Fixed ODP logging**: Log error instead of silently ignoring when ODP methods are called without providing an OdpManager ([#1108](https://github.com/optimizely/javascript-sdk/pull/1108))
+
 ## [6.2.0] - October 23, 2025
 
 ### New Features
diff --git a/lib/index.browser.tests.js b/lib/index.browser.tests.js
index 645739cdb..f3977aba7 100644
--- a/lib/index.browser.tests.js
+++ b/lib/index.browser.tests.js
@@ -153,7 +153,7 @@ describe('javascript-sdk (Browser)', function() {
         });
 
         assert.instanceOf(optlyInstance, Optimizely);
-        assert.equal(optlyInstance.clientVersion, '6.2.0');
+        assert.equal(optlyInstance.clientVersion, '6.3.0');
       });
 
       it('should set the JavaScript client engine and version', function() {
diff --git a/lib/index.node.tests.js b/lib/index.node.tests.js
index b52a0f15c..f35715062 100644
--- a/lib/index.node.tests.js
+++ b/lib/index.node.tests.js
@@ -88,7 +88,7 @@ describe('optimizelyFactory', function() {
         });
 
         assert.instanceOf(optlyInstance, Optimizely);
-        assert.equal(optlyInstance.clientVersion, '6.2.0');
+        assert.equal(optlyInstance.clientVersion, '6.3.0');
       });
       // TODO: user will create and inject an event processor
       // these tests will be refactored accordingly
diff --git a/lib/index.react_native.spec.ts b/lib/index.react_native.spec.ts
index d8ed60bea..610737395 100644
--- a/lib/index.react_native.spec.ts
+++ b/lib/index.react_native.spec.ts
@@ -92,7 +92,7 @@ describe('javascript-sdk/react-native', () => {
         expect(optlyInstance).toBeInstanceOf(Optimizely);
         // eslint-disable-next-line @typescript-eslint/ban-ts-comment
         // @ts-ignore
-        expect(optlyInstance.clientVersion).toEqual('6.2.0');
+        expect(optlyInstance.clientVersion).toEqual('6.3.0');
       });
 
       it('should set the React Native JS client engine and javascript SDK version', () => {
diff --git a/lib/utils/enums/index.ts b/lib/utils/enums/index.ts
index fd76d47ec..0364a34b1 100644
--- a/lib/utils/enums/index.ts
+++ b/lib/utils/enums/index.ts
@@ -41,7 +41,7 @@ export const CONTROL_ATTRIBUTES = {
 export const JAVASCRIPT_CLIENT_ENGINE = 'javascript-sdk';
 export const NODE_CLIENT_ENGINE = 'node-sdk';
 export const REACT_NATIVE_JS_CLIENT_ENGINE = 'react-native-js-sdk';
-export const CLIENT_VERSION = '6.2.0';
+export const CLIENT_VERSION = '6.3.0';
 
 /*
  * Represents the source of a decision for feature management. When a feature
diff --git a/package-lock.json b/package-lock.json
index 05ce4f677..deb59a64d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@optimizely/optimizely-sdk",
-  "version": "6.2.0",
+  "version": "6.3.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@optimizely/optimizely-sdk",
-      "version": "6.2.0",
+      "version": "6.3.0",
       "license": "Apache-2.0",
       "dependencies": {
         "decompress-response": "^7.0.0",
diff --git a/package.json b/package.json
index 4807ca7b3..cc543dd1b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@optimizely/optimizely-sdk",
-  "version": "6.2.0",
+  "version": "6.3.0",
   "description": "JavaScript SDK for Optimizely Feature Experimentation, Optimizely Full Stack (legacy), and Optimizely Rollouts",
   "main": "./dist/index.node.min.js",
   "browser": "./dist/index.browser.es.min.js",