diff --git a/.github/actions/build-docs/action.yml b/.github/actions/build-docs/action.yml
index df5c79cd..67f0e14f 100644
--- a/.github/actions/build-docs/action.yml
+++ b/.github/actions/build-docs/action.yml
@@ -17,4 +17,4 @@ runs:
           --ignore-tags psalm-return \
           --visibility public \
           --defaultpackagename "LaunchDarkly" \
-          --title "LaunchDarkly PHP SDK 6.6.2" # x-release-please-version
+          --title "LaunchDarkly PHP SDK 6.6.3" # x-release-please-version
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index a7a751dd..f7229ed3 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "6.6.2"
+  ".": "6.6.3"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index edc15c36..210c4d31 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to the LaunchDarkly PHP SDK will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [6.6.3](https://github.com/launchdarkly/php-server-sdk/compare/6.6.2...6.6.3) (2026-01-21)
+
+
+### Miscellaneous Chores
+
+* Update sdk_metadata features ([#231](https://github.com/launchdarkly/php-server-sdk/issues/231)) ([0eba0ab](https://github.com/launchdarkly/php-server-sdk/commit/0eba0abe3ec7d00a6c6b9461a88c6da8eec156ec))
+
 ## [6.6.2](https://github.com/launchdarkly/php-server-sdk/compare/6.6.1...6.6.2) (2025-11-20)
 
 
diff --git a/src/LaunchDarkly/LDClient.php b/src/LaunchDarkly/LDClient.php
index ecf17733..91c07fec 100644
--- a/src/LaunchDarkly/LDClient.php
+++ b/src/LaunchDarkly/LDClient.php
@@ -40,7 +40,7 @@ class LDClient
      * The current SDK version.
      * @var string
      */
-    const VERSION = '6.6.2'; // x-release-please-version
+    const VERSION = '6.6.3'; // x-release-please-version
 
     protected string $_sdkKey;
     protected string $_baseUri;