Update changelog

Author: yiyang-msft

CHANGELOG.md

@@ -1,3 +1,15 @@
+## 1.6.1
+
+
+### Added (6 changes)
+
+- Disabled some iOS BT logging which pollutes iOS logging.
+- Fix a bug on mismatching activityId in telemetry start/stop event.
+- Improvement on Android HTTP client to provide diagnose context when failure happened.
+- "Improvement on ccs client handling WNS revoked error".
+- Improvement on OneRomanApp/Android by not trying to init hte platform everytime it receives a notifiation.
+- Undo an activity change which causes AFC regression on handling 404.
+
 ## 1.6.0
 
 
@@ -26,7 +38,6 @@
 
 - Resolve an internally discovered security issue with processing web requests.
 
-
 ## 1.4.0
 
 
@@ -161,3 +172,4 @@
 
 
 
+