diff --git a/changelog.md b/changelog.md
index 844f717..2c6ff4e 100644
--- a/changelog.md
+++ b/changelog.md
@@ -4,16 +4,29 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [prd-v1.0.1] - 2025-08-21
+
+Changes authored by [Darren Wight](mailto:darren@serenomica.com).
+
+Test2
+
+### New Features 
+
+- new.py
+
+### Commits
+- afea9e5 docs: changelog updated with release prd-v1.0.0
+
 ## [prd-v1.0.0] - 2025-08-21
 
 Changes authored by [Darren Wight](mailto:darren@serenomica.com).
 
 Test1
 
-### New Features 
+### New Features
 
 - Test script.py
 
 ### Commits
-- 
+-