GA change log

Author: v-dharmarajv

sdk/communication/azure-communication-callautomation/CHANGELOG.md

@@ -10,6 +10,17 @@
 
 ### Other Changes
 
+## 1.4.0 (2025-06-06)
+ 
+### Features Added
+
+- Real-time transcription support
+- Audio and DTMF streaming capabilities
+- Integration of ConnectAPI for seamless streaming and transcription
+- Improved media streaming with bidirectional functionality, allowing audio formats in both directions, currently supporting sample rates of 24kHz and 16kHz
+- Support for custom speech models has been integrated into transcription
+- A confidence level for recognized speech has been introduced, ranging from 0.0 to 1.0 when available
+
 ## 1.4.0b1 (2024-11-22)
 
 ### Features Added