diff --git a/CHANGELOG.md b/CHANGELOG.md
index 117faae87..8430acbeb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,18 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [4.0.1] - 2024-10-26
+
+### Fixed
+
+* Missing URL-Param handling in REST API
+* Seriously Simple Podcasting integration
+* Multiple small fixes
+
+### Improved
+
+* Provide contextual fallback for dynamic blocks
+
 ## [4.0.0] - 2024-10-23
 
 ### Added
diff --git a/README.md b/README.md
index 9dd1f9922..340f2b7dd 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 **Tags:** OStatus, fediverse, activitypub, activitystream  
 **Requires at least:** 5.5  
 **Tested up to:** 6.6  
-**Stable tag:** 4.0.0  
+**Stable tag:** 4.0.1  
 **Requires PHP:** 7.0  
 **License:** MIT  
 **License URI:** http://opensource.org/licenses/MIT  
@@ -152,6 +152,13 @@ For reasons of data protection, it is not possible to see the followers of other
 
 ## Changelog ##
 
+### 4.0.1 ###
+
+* Fixed: Missing URL-Param handling in REST API
+* Fixed: Seriously Simple Podcasting integration
+* Fixed: Multiple small fixes
+* Improved: Provide contextual fallback for dynamic blocks
+
 ### 4.0.0 ###
 
 * Added: Fire an action before a follower is removed
diff --git a/activitypub.php b/activitypub.php
index ba2a25209..d1924bd24 100644
--- a/activitypub.php
+++ b/activitypub.php
@@ -3,7 +3,7 @@
  * Plugin Name: ActivityPub
  * Plugin URI: https://github.com/pfefferle/wordpress-activitypub/
  * Description: The ActivityPub protocol is a decentralized social networking protocol based upon the ActivityStreams 2.0 data format.
- * Version: 4.0.0
+ * Version: 4.0.1
  * Author: Matthias Pfefferle & Automattic
  * Author URI: https://automattic.com/
  * License: MIT
@@ -22,7 +22,7 @@
 require_once __DIR__ . '/includes/compat.php';
 require_once __DIR__ . '/includes/functions.php';
 
-\define( 'ACTIVITYPUB_PLUGIN_VERSION', '4.0.0' );
+\define( 'ACTIVITYPUB_PLUGIN_VERSION', '4.0.1' );
 
 /**
  * Initialize the plugin constants.
diff --git a/readme.txt b/readme.txt
index b927691f3..2c8525ac6 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,7 +3,7 @@ Contributors: automattic, pfefferle, mediaformat, mattwiebe, akirk, jeherve, nur
 Tags: OStatus, fediverse, activitypub, activitystream
 Requires at least: 5.5
 Tested up to: 6.6
-Stable tag: 4.0.0
+Stable tag: 4.0.1
 Requires PHP: 7.0
 License: MIT
 License URI: http://opensource.org/licenses/MIT
@@ -150,6 +150,13 @@ For reasons of data protection, it is not possible to see the followers of other
 
 == Changelog ==
 
+= 4.0.1 =
+
+* Fixed: Missing URL-Param handling in REST API
+* Fixed: Seriously Simple Podcasting integration
+* Fixed: Multiple small fixes
+* Improved: Provide contextual fallback for dynamic blocks
+
 = 4.0.0 =
 
 * Added: Fire an action before a follower is removed