diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11d09014..9b9919aa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to the LaunchDarkly PHP SDK will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [5.2.0] - 2023-10-23
+### Deprecated:
+- `LDUser` is now deprecated in favor of `LDContext`.
+
 ## [5.1.1] - 2023-07-12
 ### Changed:
 - Invalid context log message now includes the flag key as part of the Psr\Log context. (Thanks, [mrtus](https://github.com/launchdarkly/php-server-sdk/pull/179)!)
diff --git a/src/LaunchDarkly/LDClient.php b/src/LaunchDarkly/LDClient.php
index 0b9fe8f7..b5b03740 100644
--- a/src/LaunchDarkly/LDClient.php
+++ b/src/LaunchDarkly/LDClient.php
@@ -34,7 +34,7 @@ class LDClient
      * The current SDK version.
      * @var string
      */
-    const VERSION = '5.1.1';
+    const VERSION = '5.2.0';
 
     protected string $_sdkKey;
     protected string $_baseUri;