Changelog update for 1.6.1

Signed-off-by: Mohtasim <mbellah@microsoft.com>

docs/CHANGELOG_UI_CALLING.md

@@ -1,5 +1,12 @@
 # Azure Communication UI Calling Release History
 
+## 1.6.1 (2024-04-10)
+
+### Bug Fixes
+- Accessibility bugs fixed for announcement on title announcement, participant microphone status, share diagnostic announement.
+- Accessibility bugs fixed for keyboard focus on title, subtitle and microphone navigation.
+- Accessiblity bugs fixed for error message update.
+
 ## 1.6.0 (2024-02-29)
 
 ### Features