diff --git a/CHANGELOG.md b/CHANGELOG.md
index a0a5663..144e9e9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,26 +4,26 @@ 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).
 
-## [Unreleased]
+## [Released]
 
-### Added
-- New feature for the next release.
+## [0.1.1] - 2023-23-11
 
 ### Added
-- Initial release of the project.
+- Introduced `Array.wrap` extension to the `Array` class for more reliable conversion of objects to arrays within the Lennarb router environment. This method ensures consistent array wrapping of single objects and `nil` values.
 
 ### Changed
-- Example change to an existing feature.
+- Refactored the `put_header` method to use the `Array.wrap` method for more predictable header value handling.
+- Renamed methods to have a consistent `assign_` prefix to standardize the API interface:
+  - `put_header` to `assign_header`
+  - `write_body` to `assign_body`
+  - `set_params` to `assign_params`
+  - `update_status` to `assign_status`
 
 ### Deprecated
-- Example feature that will be removed in future releases.
 
 ### Removed
-- Example feature that was removed.
 
 ### Fixed
-- Example bug fix.
 
 ### Security
-- Example security fix.
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 0db57cb..ad2c235 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    lennarb (0.1.0)
+    lennarb (0.1.1)
       colorize (~> 1.1)
       puma (~> 6.4)
       rack (~> 3.0, >= 3.0.8)