CHANGELOG.md in dry-rails-0.3.0 vs CHANGELOG.md in dry-rails-0.4.0

@@ -1,4 +1,24 @@
+<!--- DO NOT EDIT THIS FILE - IT'S AUTOMATICALLY GENERATED VIA DEVTOOLS --->
+
+## 0.4.0 2021-12-23
+
+This is a big update - please also read dry-system [CHANGELOG](https://github.com/dry-rb/dry-system/blob/master/CHANGELOG.md) versions 0.20 and 0.21.
+
+### Added
+
+- It's now possible to configure container constant name via `config.constainer_const_name` (issue #21 closed via #41) (@diegotoral)
+
+### Fixed
+
+- `config.auto_inject_constant` is now cleared during code reloading (see #40 for more info) (@diegotoral)
+
+### Changed
+
+- Updated to work with dry-system 0.21 (via #48 and #50) (@zlw + @solnic)
+
+[Compare v0.3.0...v0.4.0](https://github.com/dry-rb/dry-rails/compare/v0.3.0...v0.4.0)
+
 ## 0.3.0 2020-08-26
 
 
 ### Changed