Update CHANGELOG for v1.1.3

Author: erichs

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.1.3] - 2026-01-03
+
+### Changed
+- Improved installation process for a smoother user experience
+- Added --install top-level flag to perform all install activities
+
+
 ## [1.1.2] - 2025-12-26
 
 ### Added