diff --git a/includes/object-cache.php b/includes/object-cache.php
index c429bd3c..fd21a286 100644
--- a/includes/object-cache.php
+++ b/includes/object-cache.php
@@ -3,7 +3,7 @@
 Plugin Name: Redis Object Cache Drop-In
 Plugin URI: http://wordpress.org/plugins/redis-cache/
 Description: A persistent object cache backend powered by Redis. Supports Predis, PhpRedis, HHVM, replication, clustering and WP-CLI.
-Version: 1.5.5
+Version: 1.5.6
 Author: Till Krüss
 Author URI: https://till.im/
 License: GPLv3
diff --git a/readme.txt b/readme.txt
index 2e2283f5..1e6c4992 100644
--- a/readme.txt
+++ b/readme.txt
@@ -5,7 +5,7 @@ Tags: redis, predis, phpredis, hhvm, pecl, caching, cache, object cache, perform
 Requires at least: 3.3
 Tested up to: 5.3
 Requires PHP: 5.4
-Stable tag: 1.5.5
+Stable tag: 1.5.6
 License: GPLv3
 License URI: http://www.gnu.org/licenses/gpl-3.0.html
 
@@ -218,6 +218,11 @@ The following commands are supported:
 
 == Changelog ==
 
+= 1.5.6 =
+
+- Added object cloning to in-memory cache
+- Fixed PHP notice related to `read_timeout` parameter
+
 = 1.5.5 =
 
 Please flush the object cache after updating the drop to v1.5.5 to avoid dead keys filling up Redis memory.
diff --git a/redis-cache.php b/redis-cache.php
index c099ff21..6c36d0c2 100644
--- a/redis-cache.php
+++ b/redis-cache.php
@@ -3,7 +3,7 @@
 Plugin Name: Redis Object Cache
 Plugin URI: https://wordpress.org/plugins/redis-cache/
 Description: A persistent object cache backend powered by Redis. Supports Predis, PhpRedis, HHVM, replication, clustering and WP-CLI.
-Version: 1.5.5
+Version: 1.5.6
 Text Domain: redis-cache
 Domain Path: /languages
 Author: Till Krüss
@@ -17,7 +17,7 @@
     exit;
 }
 
-define( 'WP_REDIS_VERSION', '1.5.5' );
+define( 'WP_REDIS_VERSION', '1.5.6' );
 
 if ( defined( 'WP_CLI' ) && WP_CLI ) {
     require_once dirname( __FILE__ ) . '/includes/wp-cli-commands.php';