Update changelog.md

Author: cassymyo-spec

docs/changelog.md

@@ -3,7 +3,12 @@
 All notable changes to Fiscguy are documented in this file.  
 Follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and [Semantic Versioning](https://semver.org/).
 
-## [Unreleased 0.1.6]
+## 0.1.7 - 2026-04-4
+
+### Removed
+`config validation` - caused a bug on initial registration on configuration retrival from FDMS, due to none
+
+## 0.1.6 - 2026-04-3
 
 ### Added
 - **ARCHITECTURE.md** - Comprehensive internal engineering documentation covering: