Update release notes to release SSDT for VS2017 15.9.9

fan130 · web-flow · commit 505d67708966 · 2021-08-26T10:09:00.000+08:00
diff --git a/docs/ssdt/release-notes-ssdt.md b/docs/ssdt/release-notes-ssdt.md
@@ -19,6 +19,27 @@ monikerRange: ">=aps-pdw-2016||=azuresqldb-current||=azure-sqldw-latest||>=sql-s
 
 These release notes are for [SQL Server Data Tools (SSDT)](download-sql-server-data-tools-ssdt.md) for Visual Studio (VS).
 
+## 15.9.9,&nbsp; SSDT for VS 2017
+
+_Released:_ &nbsp; Aug 27, 2021  
+_Build Number:_ &nbsp; 14.0.16245.0  
+_SSDT for Visual Studio 2017._
+
+### What's New?
+
+| New Item | Details |
+|-----------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| Integration Services (SSIS) | Azure-enabled SQL Server Integration Services (SSIS) projects now support national cloud (Azure US Government and Azure China). |
+| Integration Services (SSIS) | Fixed an issue that cannot sign in with AAD when editing Analysis Services Processing Task. |
+| Integration Services (SSIS) | Fixed some issues related to accessibility and high DPI. |
+
+### Known issues
+
+| Known issue | Details |
+| :---------- | :------ |
+| SSIS Execute Package Task doesn't support debugging when ExecuteOutOfProcess is set to True. | This issue applies only to debugging. Save, deploy, and execution via DTExec.exe or SSIS catalog isn't affected. |
+| &nbsp; | &nbsp; |
+
 ## 15.9.8,&nbsp; SSDT for VS 2017
 
 _Released:_ &nbsp; Apr 27, 2021  
@@ -1086,4 +1107,4 @@ SSDT General Availability (GA) is now released. The SSDT GA update for June 2016
 - [Previous releases of SQL Server Data Tools &#40;SSDT and SSDT-BI&#41;](../ssdt/previous-releases-of-sql-server-data-tools-ssdt-and-ssdt-bi.md)
 - [What's New in Database Engine](../sql-server/what-s-new-in-sql-server-2016.md)
 - [What's New in Analysis Services](/analysis-services/what-s-new-in-analysis-services)
-- [What's New in Integration Services](../integration-services/what-s-new-in-integration-services-in-sql-server-2016.md)
+- [What's New in Integration Services](../integration-services/what-s-new-in-integration-services-in-sql-server-2016.md)
