Merge branch 'release/2.1' into release/3.1

Author: John Luo

src/DataProtection/AzureKeyVault/src/Microsoft.AspNetCore.DataProtection.AzureKeyVault.csproj

@@ -1,7 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <Description>Microsoft Azure KeyVault key encryption support.</Description>
+    <Description>Microsoft Azure KeyVault key encryption support.
+
+    This library has been replaced by the following new Azure SDK.
+
+    https://www.nuget.org/packages/Azure.Extensions.AspNetCore.DataProtection.Keys
+
+    It is recommended that you move to the new package.
+    </Description>
     <TargetFramework>netstandard2.0</TargetFramework>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>aspnetcore;dataprotection;azure;keyvault</PackageTags>

src/DataProtection/AzureStorage/src/Microsoft.AspNetCore.DataProtection.AzureStorage.csproj

@@ -1,7 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <Description>Microsoft Azure Blob storage support as key store.</Description>
+    <Description>Microsoft Azure Blob storage support as key store.
+
+    This library has been replaced by the following new Azure SDK.
+
+    https://www.nuget.org/packages/Azure.Extensions.AspNetCore.DataProtection.Blobs
+
+    It is recommended that you move to the new package.
+    </Description>
     <TargetFramework>netstandard2.0</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>