changelog notification note

Author: CasJam

CHANGELOG.md

@@ -1,9 +1,7 @@
 # Changelog
 
-All notable changes to Agent OS 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).
+Get notified of major releases by subscribing here:
+https://buildermethods.com/agent-os
 
 ## [2.1.0] - 2025-10-21