diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0f776359..73578061 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [4.0.0] - 2023-11-13
+
 ### Added
 
 - Component Search dialog
@@ -1635,6 +1637,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 - Background color issues in the palette
 
-[unreleased]: https://github.com/wxFormBuilder/wxFormBuilder/compare/v3.10.1...HEAD
+[unreleased]: https://github.com/wxFormBuilder/wxFormBuilder/compare/v4.0.0...HEAD
+[4.0.0]: https://github.com/wxFormBuilder/wxFormBuilder/compare/v3.10.1...v4.0.0
 [3.10.1]: https://github.com/wxFormBuilder/wxFormBuilder/compare/v3.10.0...v3.10.1
 [3.10.0]: https://github.com/wxFormBuilder/wxFormBuilder/releases/tag/v3.10.0
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 46f15d6e..a266234c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.21)
 
 # Do not change the format of this line! It must stay as-is up to and including the keyword LANGUAGES.
 # External tools parse the version number from this line.
-project(wxFormBuilder VERSION 3.10.1 LANGUAGES CXX)
+project(wxFormBuilder VERSION 4.0.0 LANGUAGES CXX)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
 
diff --git a/data/packaging/linux/debian/changelog b/data/packaging/linux/debian/changelog
index 274f6dbe..c294fe30 100644
--- a/data/packaging/linux/debian/changelog
+++ b/data/packaging/linux/debian/changelog
@@ -1,3 +1,9 @@
+wxformbuilder (4.0.0) focal jammy mantic; urgency=medium
+
+  * Release
+
+ -- Steffen Olszewski <steffen.olszewski@gero-mess.de>  Mon, 13 Nov 2023 22:00:00 +0100
+
 wxformbuilder (3.10.1) focal jammy mantic; urgency=medium
 
   * Release
diff --git a/data/platform/linux/share/metainfo/org.wxformbuilder.wxFormBuilder.metainfo.xml b/data/platform/linux/share/metainfo/org.wxformbuilder.wxFormBuilder.metainfo.xml
index a0c8ab5b..4e726766 100644
--- a/data/platform/linux/share/metainfo/org.wxformbuilder.wxFormBuilder.metainfo.xml
+++ b/data/platform/linux/share/metainfo/org.wxformbuilder.wxFormBuilder.metainfo.xml
@@ -24,6 +24,7 @@
   </provides>
 
   <releases>
+    <release version="4.0.0" date="2023-11-13"/>
     <release version="3.10.1" date="2021-10-22"/>
     <release version="3.10.0" date="2021-09-25"/>
     <release version="3.9.0" date="2018-10-26"/>