diff --git a/CHANGELOG.md b/CHANGELOG.md
index 71cb6193e..d151b5c01 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # `maxGraph` Change Log
 
+## 0.4.0
+
+This release contains new features, bug fixes and documentation improvements.
+
+**Major improvements**
+- introduce the Manhattan connector
+
+For more details, see the [0.4.0 Changelog](https://github.com/maxGraph/maxGraph/releases/tag/v0.4.0) on
+the GitHub release page.
+
 ## 0.3.0
 
 This release contains new features, bug fixes and documentation improvements.
diff --git a/packages/core/package.json b/packages/core/package.json
index 9fe7223f1..12535bfe1 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@maxgraph/core",
   "license": "Apache-2.0",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "maxGraph is a fully client side JavaScript diagramming library that uses SVG and HTML for rendering.",
   "keywords": [
     "browser",
diff --git a/packages/core/src/Client.ts b/packages/core/src/Client.ts
index a12a5d35e..f4902af64 100644
--- a/packages/core/src/Client.ts
+++ b/packages/core/src/Client.ts
@@ -20,7 +20,7 @@ class Client {
   /**
    * Contains the current version of the maxGraph library.
    */
-  static VERSION = '0.3.0';
+  static VERSION = '0.4.0';
 
   /**
    * Base path for all URLs in the core without trailing slash.