diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8cbfcd3..a6963e5 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).
 
+## [0.4.0] - 2024-05-02
+### Fixed
+- Fix compilation with GLib 2.80 and GTK 4.14.
+- Search text is selected when locator is show.
+- Do not fork on --license and --version command line arguments.
+
+### Changed
+- Removed buttons to search-prev/search-next, use F3/Ctrl+F3 instead.
+- Show arguments on Crystal docset methods and functions.
+- Class only search was temporary removed.
+
+### Added
+- Added document hierarchy, a sidebar was added to show them.
+- Show arguments on Crystal docset methods and functions.
+
 ## [0.3.1] - 2024-02-25
 ### Added
 - Icons [from Dash](https://github.com/Kapeli/Dash-X-Platform-Resources) for doc entries.
diff --git a/shard.yml b/shard.yml
index 4275608..d8e2d6c 100644
--- a/shard.yml
+++ b/shard.yml
@@ -1,5 +1,5 @@
 name: rtfm
-version: 0.3.1
+version: 0.4.0
 
 authors:
   - Hugo Parente Lima <hugo.pl@gmail.com>