update change log

Author: newmanw

CHANGELOG.md

@@ -9,6 +9,14 @@ MAGE adheres to [Semantic Versioning](http://semver.org/).
 
 ##### Bug Fixes
 
+## [6.1.2](https://github.com/ngageoint/mage-server/releases/tag/6.1.2)
+
+##### Features
+
+##### Bug Fixes
+* Geopackage export will skip adding userId or deviceId if missing from observation.
+* All export types will skip export of attachments missing relativePath property.
+
 ## [6.1.1](https://github.com/ngageoint/mage-server/releases/tag/6.1.1)
 
 ##### Features