diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0022047..f73cfa7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.4.0] - 2024-08-12
+
+### Changed
+
+- The compatibility check for schemas is more liberal
+- Updated dev dependencies
+
 ## [1.3.0] - 2021-08-12
 
 ### Added
@@ -52,7 +59,8 @@ First stable release supporting openEO API 1.0.0.
 
 All prior releases have been documented in the [GitHub Releases](https://github.com/Open-EO/openeo-js-processgraphs/releases).
 
-[Unreleased]: <https://github.com/Open-EO/openeo-js-processgraphs/compare/v1.3.0...HEAD>
+[Unreleased]: <https://github.com/Open-EO/openeo-js-processgraphs/compare/v1.4.0...HEAD>
+[1.4.0]: <https://github.com/Open-EO/openeo-js-processgraphs/compare/v1.3.0...v1.4.0>
 [1.3.0]: <https://github.com/Open-EO/openeo-js-processgraphs/compare/v1.2.1...v1.3.0>
 [1.2.1]: <https://github.com/Open-EO/openeo-js-processgraphs/compare/v1.2.0...v1.2.1>
 [1.2.0]: <https://github.com/Open-EO/openeo-js-processgraphs/compare/v1.1.0...v1.2.0>
diff --git a/README.md b/README.md
index 1074a44..6c7e2b1 100644
--- a/README.md
+++ b/README.md
@@ -4,11 +4,12 @@
 
 [![Build Status](https://travis-ci.org/Open-EO/openeo-js-processgraphs.svg?branch=master)](https://travis-ci.org/Open-EO/openeo-js-processgraphs)
 
-This library's version is **1.3.0** and supports **openEO API version 1.x**.
+This library's version is **1.4.0** and supports **openEO API version 1.x**.
 
 This repository was split apart from [openeo-js-commons](https://github.com/Open-EO/openeo-js-commons). Old releases can be found there.
 
 ## Features
+
 - Parsing a process graph
 - Validation based on the JSON Schemas
 - Framework to implement process graph execution
@@ -27,4 +28,4 @@ In a web environment you can include the library as follows:
 <script src="https://cdn.jsdelivr.net/npm/@openeo/js-processgraphs@1/dist/main.min.js"></script>
 ```
 
-More information can be found in the [**documentation**](https://open-eo.github.io/openeo-js-processgraphs/1.3.0/).
\ No newline at end of file
+More information can be found in the [**documentation**](https://open-eo.github.io/openeo-js-processgraphs/1.4.0/).
diff --git a/package.json b/package.json
index e60f1bd..7fc57cd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@openeo/js-processgraphs",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "author": "openEO Consortium",
   "contributors": [
     {