diff --git a/CHANGELOG.md b/CHANGELOG.md
index d9352ef..f6c006c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,12 @@ backwards-incompatible changes that will affect existing usage.
 
 <!-- CHANGELOG_PLACEHOLDER -->
 
+## 9.13.0 - 2023-01-13
+
+- Implement abstract class BaseCurl for Curl and MultiCurl ([#759](https://github.com/php-curl-class/php-curl-class/pull/759))
+- Display error messages found in Curl::diagnose() ([#758](https://github.com/php-curl-class/php-curl-class/pull/758))
+- Fix Curl::diagnose() request type output for POST requests ([#757](https://github.com/php-curl-class/php-curl-class/pull/757))
+
 ## 9.12.6 - 2023-01-11
 
 - Replace use of #[\AllowDynamicProperties] ([#756](https://github.com/php-curl-class/php-curl-class/pull/756))
diff --git a/src/Curl/Curl.php b/src/Curl/Curl.php
index bc7703d..b41ec06 100644
--- a/src/Curl/Curl.php
+++ b/src/Curl/Curl.php
@@ -8,7 +8,7 @@ use Curl\Url;
 
 class Curl extends BaseCurl
 {
-    const VERSION = '9.12.6';
+    const VERSION = '9.13.0';
     const DEFAULT_TIMEOUT = 30;
 
     public $curl = null;