Merge branch 'main' into dependabot/nuget/dotnet/multi-7761ae359b

Author: crickman

dotnet/Directory.Packages.props

@@ -46,6 +46,7 @@
     <PackageVersion Include="System.Text.Json" Version="10.0.0" />
     <PackageVersion Include="System.Threading.Channels" Version="10.0.0" />
     <PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
+    <PackageVersion Include="System.Net.Security" Version="4.3.2" />
     <!-- OpenTelemetry -->
     <PackageVersion Include="OpenTelemetry" Version="1.13.1" />
     <PackageVersion Include="OpenTelemetry.Api" Version="1.13.1" />

dotnet/samples/GettingStarted/AgentProviders/Agent_With_GoogleGemini/Agent_With_GoogleGemini.csproj

@@ -2,18 +2,22 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>net10.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
 
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
-    <NoWarn>$(NoWarn);IDE0059</NoWarn>
+    <NoWarn>$(NoWarn);IDE0059;NU1510</NoWarn>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Google.GenAI" />
     <PackageReference Include="Mscc.GenerativeAI.Microsoft" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0' or '$(TargetFramework)' == 'net9.0'">
+    <PackageReference Include="System.Net.Security" />
+  </ItemGroup>
+  
   <ItemGroup>
     <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI\Microsoft.Agents.AI.csproj" />
   </ItemGroup>

dotnet/src/Microsoft.Agents.AI.Abstractions/AIContextProvider.cs

@@ -124,7 +124,7 @@ public virtual JsonElement Serialize(JsonSerializerOptions? jsonSerializerOption
     /// that will be used. Context providers can use this information to determine what additional context
     /// should be provided for the invocation.
     /// </remarks>
-    public class InvokingContext
+    public sealed class InvokingContext
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="InvokingContext"/> class with the specified request messages.
@@ -153,7 +153,7 @@ public InvokingContext(IEnumerable<ChatMessage> requestMessages)
     /// request messages that were used and the response messages that were generated. It also indicates
     /// whether the invocation succeeded or failed.
     /// </remarks>
-    public class InvokedContext
+    public sealed class InvokedContext
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="InvokedContext"/> class with the specified request messages.

dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentOptions.cs

@@ -14,7 +14,7 @@ namespace Microsoft.Agents.AI;
 /// identifier, display name, operational instructions, and a descriptive summary. It can be used to store and transfer
 /// agent-related metadata within a chat application.
 /// </remarks>
-public class ChatClientAgentOptions
+public sealed class ChatClientAgentOptions
 {
     /// <summary>
     /// Gets or sets the agent id.