change version to 2.1.0

Author: hkong-mitre

ChangeLog.md

@@ -1,8 +1,8 @@
 # Change Log
 
-### 2.1.0-rc2
-  - wildcard search
-  - AppConfig to manage hierarchical environment variables and all default values for environment variables (only environment variables for search completed in rc2)
+### 2.1.0
+  - wildcard search using "*" and "?"
+  - AppConfig to manage hierarchical environment variables and all default values for environment variables
   - code refactoring: reorganizing code, general cleaning up for migration to github
 
 ### 2.0.0-rc14 - deployed: 2025-06-05