Update release-notes-tts.md

Author: sally-baolian

articles/ai-services/speech-service/includes/release-notes/release-notes-tts.md

@@ -13,6 +13,43 @@ ms.custom: references_regions
 
 Text to speech avatar is now generally available. For more information, see [text to speech avatar](../../text-to-speech-avatar/what-is-text-to-speech-avatar.md).
 
+#### Prebuilt neural voice
+
+- Introduce 2 turbo version of Azure OpenAI voices in public preview: `en-US-AlloyTurboMultilingualNeural` and `en-US-NovaTurboMultilingualNeural`. Turbo version of Azure OpenAI voices has the similar voice persona as Azure OpenAI voices but supports extra features. Turbo voices are available in East Asia, East US, Southeast Asia, and West US. Turbo voices support the full set of SSML elements and more features like word boundary, just like other Azure AI Speech voices. See the [full language and voice list](../../language-support.md?tabs=tts) for more information.
+  
+- Introduce 2 new multilingual voices in public preview: `zh-CN-YunfanMultilingualNeural` and `zh-CN-YunxiaoMultilingualNeural`. See the [full language and voice list](../../language-support.md?tabs=tts) for more information.
+
+#### Embedded neural voice
+
+- `en-US-JennyMultilingual` voice is released in production, supporting up to 24 locales for on-device experience. For the supported locales, see the table below.
+
+  | Locale | Language        |
+  |--------|-----------------|
+  | `da-DK`| Danish (Denmark)|
+  | `de-DE`| German (Germany)|
+  | `en-AU`| English (Australia)|
+  | `en-GB`| English (United Kingdom)|
+  | `en-IN`| English (India)|
+  | `en-US`| English (United States)|
+  | `es-ES`| Spanish (Spain)|
+  | `es-MX`| Spanish (Mexico)|
+  | `fr-CA`| French (Canada)|
+  | `fr-FR`| French (France)|
+  | `he-IL`| Hebrew (Israel)|
+  | `it-IT`| Italian (Italy)|
+  | `ja-JP`| Japanese (Japan)|
+  | `ko-KR`| Korean (Korea)|
+  | `nb-NO`| Norwegian Bokmål (Norway)|
+  | `nl-NL`| Dutch (Netherlands)|
+  | `pl-PL`| Polish (Poland)|
+  | `pt-PT`| Portuguese (Portugal)|
+  | `sv-SE`| Swedish (Sweden)|
+  | `th-TH`| Thai (Thailand)|
+  | `tr-TR`| Turkish (Turkey)|
+  | `zh-CN`| Chinese (Mandarin, Simplified)|
+  | `zh-HK`| Chinese (Cantonese, Traditional)|
+  | `zh-TW`| Chinese (Taiwanese Mandarin, Traditional)|
+
 ### June 2024 release
 
 #### Prebuilt neural voice