Distro Release 1.6.6 (Azure#40401)

Author: jeremydvoss

sdk/monitor/azure-monitor-opentelemetry/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Release History
 
-## 1.6.6 (Unreleased)
+## 1.6.6 (2025-04-07)
 
 ### Features Added
 
@@ -9,12 +9,6 @@
 - Enable Azure AI Agents instrumentation
     ([#40043](https://github.com/Azure/azure-sdk-for-python/pull/40043))
 
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
-
 ## 1.6.5 (2025-02-14)
 
 ### Features Added