diff --git a/CHANGELOG.md b/CHANGELOG.md
index 291656c..3f158d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,21 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+[4.0.0]
+### Added
+- add empty template, fixes #47 (#52)
+- Add the management of limits.conf file. (#44)
+- Allow managing multiple settings in one file (#45)
+- Allow Puppet 8 (#51)
+- Add Ubuntu 24.04 and Debian 12 as supported OS (#51)
+### Changed
+- allow puppetlabs/concat < 10 (#51)
+### Fixed
+- Add line end character for top comment and use proper matchers for acceptance tests (#49)
+### Removed
+- remove Debian 9 as supported OS
+- drop Puppet 6 support (#51)
+- remove Ubuntu 18.04 as supported OS (#51)
 
 [3.1.0]
 ### Changed
diff --git a/metadata.json b/metadata.json
index aea7e20..13ea4a4 100644
--- a/metadata.json
+++ b/metadata.json
@@ -1,6 +1,6 @@
 {
   "name": "saz-limits",
-  "version": "3.1.0",
+  "version": "4.0.0",
   "author": "saz",
   "summary": "Manage user limits via puppet",
   "description": "Manage user limits via puppet",