prepare release (Azure#48215)

Author: ArcturusZhang

sdk/dataprotection/Azure.ResourceManager.DataProtectionBackup/CHANGELOG.md

@@ -1,15 +1,11 @@
 # Release History
 
-## 1.6.0-beta.2 (Unreleased)
-
-### Features Added
-
-### Breaking Changes
-
-### Bugs Fixed
+## 1.6.1 (2025-02-12)
 
 ### Other Changes
 
+- Stable version release of 1.6.0-beta.1.
+
 ## 1.6.0-beta.1 (2025-02-07)
 
 ### Features Added

sdk/dataprotection/Azure.ResourceManager.DataProtectionBackup/src/Azure.ResourceManager.DataProtectionBackup.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>1.6.0-beta.2</Version>
+    <Version>1.6.1</Version>
     <!--The ApiCompatVersion is managed automatically and should not generally be modified manually.-->
     <ApiCompatVersion>1.5.0</ApiCompatVersion>
     <PackageId>Azure.ResourceManager.DataProtectionBackup</PackageId>