diff --git a/dotnet/Directory.Packages.props b/dotnet/Directory.Packages.props
index 8dead31fe33..c4e154e75e7 100644
--- a/dotnet/Directory.Packages.props
+++ b/dotnet/Directory.Packages.props
@@ -11,19 +11,19 @@
   </PropertyGroup>
   <ItemGroup>
     <!-- Aspire.* -->
-    <PackageVersion Include="Anthropic" Version="12.43.0" />
+    <PackageVersion Include="Anthropic" Version="12.45.0" />
     <PackageVersion Include="Anthropic.Foundry" Version="0.7.1" />
     <PackageVersion Include="Aspire.Hosting" Version="$(AspireAppHostSdkVersion)" />
     <PackageVersion Include="Aspire.Azure.AI.OpenAI" Version="13.0.0-preview.1.25560.3" />
-    <PackageVersion Include="Aspire.Azure.AI.Inference" Version="13.1.0-preview.1.25616.3" />
-    <PackageVersion Include="Aspire.Hosting.Azure.AIFoundry" Version="13.1.0-preview.1.25616.3" />
+    <PackageVersion Include="Aspire.Azure.AI.Inference" Version="13.5.3-preview.1.26425.3" />
+    <PackageVersion Include="Aspire.Hosting.Azure.AIFoundry" Version="13.1.3-preview.1.26166.8" />
     <PackageVersion Include="Aspire.Hosting.AppHost" Version="$(AspireAppHostSdkVersion)" />
     <PackageVersion Include="Aspire.Hosting.Azure.CognitiveServices" Version="$(AspireAppHostSdkVersion)" />
     <PackageVersion Include="Aspire.Microsoft.Azure.Cosmos" Version="$(AspireAppHostSdkVersion)" />
-    <PackageVersion Include="CommunityToolkit.Aspire.OllamaSharp" Version="13.0.0" />
+    <PackageVersion Include="CommunityToolkit.Aspire.OllamaSharp" Version="13.5.0" />
     <PackageVersion Include="MessagePack" Version="3.1.7" /> <!-- Transitive dependency of Aspire pinned to newer version due to vulnerability in 2.5.192 -->
     <!-- Azure.* -->
-    <PackageVersion Include="Azure.AI.AgentServer.Core" Version="1.0.0-beta.28" />
+    <PackageVersion Include="Azure.AI.AgentServer.Core" Version="1.0.0-beta.29" />
     <PackageVersion Include="Azure.AI.AgentServer.Invocations" Version="1.0.0-beta.6" />
     <PackageVersion Include="Azure.AI.AgentServer.Responses" Version="1.0.0-beta.8" />
     <PackageVersion Include="Azure.Search.Documents" Version="12.0.0" />
@@ -31,14 +31,14 @@
     <PackageVersion Include="Azure.AI.Agents.Persistent" Version="1.2.0-beta.10" />
     <PackageVersion Include="Azure.Core" Version="1.62.0" />
     <PackageVersion Include="Azure.Identity" Version="1.21.0" />
-    <PackageVersion Include="Azure.Storage.Blobs" Version="12.29.1" />
+    <PackageVersion Include="Azure.Storage.Blobs" Version="12.29.2" />
     <PackageVersion Include="DotNetEnv" Version="3.2.0" />
     <PackageVersion Include="Azure.Monitor.OpenTelemetry.Exporter" Version="1.9.0" />
     <!-- Google Gemini  -->
     <PackageVersion Include="Google.GenAI" Version="1.6.0" />
     <PackageVersion Include="Mscc.GenerativeAI.Microsoft" Version="2.9.3" />
     <!-- Microsoft.Azure.* -->
-    <PackageVersion Include="Microsoft.Azure.Cosmos" Version="3.61.0" />
+    <PackageVersion Include="Microsoft.Azure.Cosmos" Version="3.63.0" />
     <PackageVersion Include="Microsoft.Data.Sqlite" Version="10.0.12" />
     <!-- Newtonsoft.Json -->
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
@@ -55,11 +55,11 @@
     <PackageVersion Include="System.Net.Http.Json" Version="10.0.12" />
     <PackageVersion Include="System.Net.ServerSentEvents" Version="10.0.12" />
     <!-- AG-UI .NET SDK packages (published by the AG-UI team). -->
-    <PackageVersion Include="AGUI.Abstractions" Version="0.0.5" />
-    <PackageVersion Include="AGUI.Formatting" Version="0.0.5" />
-    <PackageVersion Include="AGUI.Protobuf" Version="0.0.5" />
-    <PackageVersion Include="AGUI.Client" Version="0.0.5" />
-    <PackageVersion Include="AGUI.Server" Version="0.0.5" />
+    <PackageVersion Include="AGUI.Abstractions" Version="0.0.6" />
+    <PackageVersion Include="AGUI.Formatting" Version="0.0.6" />
+    <PackageVersion Include="AGUI.Protobuf" Version="0.0.6" />
+    <PackageVersion Include="AGUI.Client" Version="0.0.6" />
+    <PackageVersion Include="AGUI.Server" Version="0.0.6" />
     <PackageVersion Include="System.Text.Json" Version="10.0.12" />
     <PackageVersion Include="System.Threading.Channels" Version="10.0.12" />
     <PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
@@ -80,14 +80,14 @@
     <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="10.0.12" />
     <PackageVersion Include="Swashbuckle.AspNetCore.SwaggerUI" Version="10.2.3" />
     <!-- Microsoft.Extensions.* -->
-    <PackageVersion Include="Microsoft.Extensions.AI" Version="10.9.0" />
-    <PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.9.0" />
-    <PackageVersion Include="Microsoft.Extensions.AI.Evaluation" Version="10.9.0" />
-    <PackageVersion Include="Microsoft.Extensions.AI.Evaluation.Quality" Version="10.9.0" />
-    <PackageVersion Include="Microsoft.Extensions.AI.Evaluation.Safety" Version="10.9.0" />
-    <PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="10.9.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI" Version="10.10.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.10.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.Evaluation" Version="10.10.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.Evaluation.Quality" Version="10.10.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.Evaluation.Safety" Version="10.10.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="10.10.0" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="10.0.12" />
-    <PackageVersion Include="Microsoft.Extensions.Compliance.Abstractions" Version="10.9.0" />
+    <PackageVersion Include="Microsoft.Extensions.Compliance.Abstractions" Version="10.10.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration" Version="10.0.12" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.Binder" Version="10.0.12" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="10.0.12" />
@@ -97,24 +97,24 @@
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.12" />
     <PackageVersion Include="Microsoft.Extensions.FileSystemGlobbing" Version="10.0.12" />
     <PackageVersion Include="Microsoft.Extensions.Hosting" Version="10.0.12" />
-    <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.9.0" />
+    <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.10.0" />
     <PackageVersion Include="Microsoft.Extensions.Logging" Version="10.0.12" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.12" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="10.0.12" />
-    <PackageVersion Include="Microsoft.Extensions.ServiceDiscovery" Version="10.9.0" />
-    <PackageVersion Include="Microsoft.Extensions.VectorData.Abstractions" Version="10.9.0" />
+    <PackageVersion Include="Microsoft.Extensions.ServiceDiscovery" Version="10.10.0" />
+    <PackageVersion Include="Microsoft.Extensions.VectorData.Abstractions" Version="10.10.0" />
     <!-- Vector Stores -->
     <PackageVersion Include="CommunityToolkit.VectorData.AzureCosmosDB" Version="1.0.0" />
     <PackageVersion Include="CommunityToolkit.VectorData.InMemory" Version="1.0.1" />
     <PackageVersion Include="CommunityToolkit.VectorData.Qdrant" Version="1.0.0" />
     <!-- Agent SDKs -->
     <PackageVersion Include="GitHub.Copilot.SDK" Version="1.0.11" />
-    <PackageVersion Include="ResponsibleAI.AgentHooks" Version="0.1.0-alpha.4" />
-    <PackageVersion Include="Microsoft.Agents.CopilotStudio.Client" Version="1.3.171-beta" />
+    <PackageVersion Include="ResponsibleAI.AgentHooks" Version="0.1.0-alpha.5" />
+    <PackageVersion Include="Microsoft.Agents.CopilotStudio.Client" Version="1.9.28-beta" />
     <!-- M365 Agents SDK -->
     <PackageVersion Include="AdaptiveCards" Version="3.1.0" />
-    <PackageVersion Include="Microsoft.Agents.Authentication.Msal" Version="1.3.171-beta" />
-    <PackageVersion Include="Microsoft.Agents.Hosting.AspNetCore" Version="1.3.171-beta" />
+    <PackageVersion Include="Microsoft.Agents.Authentication.Msal" Version="1.9.28-beta" />
+    <PackageVersion Include="Microsoft.Agents.Hosting.AspNetCore" Version="1.9.28-beta" />
     <!-- A2A -->
     <PackageVersion Include="A2A" Version="1.0.0-preview2" />
     <PackageVersion Include="A2A.AspNetCore" Version="1.0.0-preview2" />
@@ -122,16 +122,16 @@
     <PackageVersion Include="ModelContextProtocol" Version="2.2.0" />
     <PackageVersion Include="ModelContextProtocol.Extensions.Tasks" Version="2.2.0" />
     <!-- Hyperlight -->
-    <PackageVersion Include="Hyperlight.HyperlightSandbox.Api" Version="0.4.0" />
-    <PackageVersion Include="Hyperlight.HyperlightSandbox.Guest.Python" Version="0.4.0" />
+    <PackageVersion Include="Hyperlight.HyperlightSandbox.Api" Version="0.6.0" />
+    <PackageVersion Include="Hyperlight.HyperlightSandbox.Guest.Python" Version="0.6.0" />
     <!-- Inference SDKs -->
     <PackageVersion Include="Dapr.AI.Microsoft.Extensions" Version="1.18.5" />
     <PackageVersion Include="Microsoft.ML.OnnxRuntimeGenAI" Version="0.10.0" />
     <PackageVersion Include="Microsoft.ML.Tokenizers" Version="2.0.0" />
-    <PackageVersion Include="OllamaSharp" Version="5.4.8" />
-    <PackageVersion Include="OpenAI" Version="2.12.0" />
+    <PackageVersion Include="OllamaSharp" Version="5.4.30" />
+    <PackageVersion Include="OpenAI" Version="2.13.0" />
     <!-- Identity -->
-    <PackageVersion Include="Microsoft.Identity.Client.Extensions.Msal" Version="4.84.2" />
+    <PackageVersion Include="Microsoft.Identity.Client.Extensions.Msal" Version="4.88.0" />
     <!-- Workflows -->
     <PackageVersion Include="Microsoft.Agents.ObjectModel" Version="2026.5.5" />
     <PackageVersion Include="Microsoft.Agents.ObjectModel.Json" Version="2026.5.5" />
diff --git a/dotnet/samples/02-agents/AgentProviders/anthropic/Agent_Anthropic_Step04_UsingSkills/Program.cs b/dotnet/samples/02-agents/AgentProviders/anthropic/Agent_Anthropic_Step04_UsingSkills/Program.cs
index 9d356a8598b..a7d87d59bc6 100644
--- a/dotnet/samples/02-agents/AgentProviders/anthropic/Agent_Anthropic_Step04_UsingSkills/Program.cs
+++ b/dotnet/samples/02-agents/AgentProviders/anthropic/Agent_Anthropic_Step04_UsingSkills/Program.cs
@@ -33,7 +33,7 @@
 
     foreach (var skill in skills.Items)
     {
-        Console.WriteLine($"  {skill.Source}: {skill.ID} (version: {skill.LatestVersion})");
+        Console.WriteLine($"  {skill.Source}: {skill.ID} (version: {skill.LatestVersionID})");
     }
 }
 catch (Exception ex)
diff --git a/dotnet/samples/02-agents/AgentProviders/dapr/Agent_With_Dapr/Agent_With_Dapr.csproj b/dotnet/samples/02-agents/AgentProviders/dapr/Agent_With_Dapr/Agent_With_Dapr.csproj
index 1e1fa945e7d..27d1e4d607b 100644
--- a/dotnet/samples/02-agents/AgentProviders/dapr/Agent_With_Dapr/Agent_With_Dapr.csproj
+++ b/dotnet/samples/02-agents/AgentProviders/dapr/Agent_With_Dapr/Agent_With_Dapr.csproj
@@ -6,20 +6,11 @@
 
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
-    <CentralPackageTransitivePinningEnabled>false</CentralPackageTransitivePinningEnabled>
     <NoWarn>$(NoWarn);DAPR_CONVERSATION</NoWarn>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Dapr.AI.Microsoft.Extensions" />
-    <!--
-      Dapr.AI.Microsoft.Extensions depends on Microsoft.Extensions.* 10.0.8, which is higher than the
-      versions pinned centrally in Directory.Packages.props. Central transitive pinning is disabled above
-      for this sample and these two direct references are overridden to that minimum. Remove the overrides
-      (and the CentralPackageTransitivePinningEnabled setting) once the central versions are >= 10.0.8.
-    -->
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" VersionOverride="10.0.8" />
-    <PackageReference Include="Microsoft.Extensions.Hosting" VersionOverride="10.0.8" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/dotnet/samples/02-agents/AgentWithMemory/AgentWithMemory_Step06_MemoryUsingAgentMemory/AgentWithMemory_Step06_MemoryUsingAgentMemory.csproj b/dotnet/samples/02-agents/AgentWithMemory/AgentWithMemory_Step06_MemoryUsingAgentMemory/AgentWithMemory_Step06_MemoryUsingAgentMemory.csproj
index 4cee54785a4..8373e63ef0e 100644
--- a/dotnet/samples/02-agents/AgentWithMemory/AgentWithMemory_Step06_MemoryUsingAgentMemory/AgentWithMemory_Step06_MemoryUsingAgentMemory.csproj
+++ b/dotnet/samples/02-agents/AgentWithMemory/AgentWithMemory_Step06_MemoryUsingAgentMemory/AgentWithMemory_Step06_MemoryUsingAgentMemory.csproj
@@ -42,7 +42,7 @@
     <PackageReference Include="AgentMemory.AgentFramework" Version="1.5.0" />
     <!-- Microsoft Agent Framework (matches AgentMemory's target) + the OpenAI/Foundry chat & embedding clients. -->
     <PackageReference Include="Microsoft.Agents.AI" Version="1.9.0" />
-    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="10.9.0" />
+    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="10.10.0" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.17" />
     <!-- Transitive dependency of Microsoft.Agents.AI; pinned explicitly (CPM is off here) because the
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/invocations/Hosted-Invocations-EchoAgent/Hosted-Invocations-EchoAgent.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/invocations/Hosted-Invocations-EchoAgent/Hosted-Invocations-EchoAgent.csproj
index be47ac13eed..8162f9a84fa 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/invocations/Hosted-Invocations-EchoAgent/Hosted-Invocations-EchoAgent.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/invocations/Hosted-Invocations-EchoAgent/Hosted-Invocations-EchoAgent.csproj
@@ -35,7 +35,7 @@
     <PackageReference Include="Azure.AI.AgentServer.Invocations" Version="1.0.0-beta.6" />
     <PackageReference Include="OpenTelemetry.Api" Version="1.18.0" />
     <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.18.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-AgentSkills/HostedAgentSkills.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-AgentSkills/HostedAgentSkills.csproj
index bd3dd9baf9d..0fde73c19f6 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-AgentSkills/HostedAgentSkills.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-AgentSkills/HostedAgentSkills.csproj
@@ -27,15 +27,15 @@
     <RootNamespace>HostedAgentSkills</RootNamespace>
     <AssemblyName>HostedAgentSkills</AssemblyName>
     <UserSecretsId>3ebf91b7-0ecf-4568-8ab9-841ff2132601</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-AzureSearchRag/HostedAzureSearchRag.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-AzureSearchRag/HostedAzureSearchRag.csproj
index 5d71f597a1d..c38bf5cd388 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-AzureSearchRag/HostedAzureSearchRag.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-AzureSearchRag/HostedAzureSearchRag.csproj
@@ -27,16 +27,16 @@
     <RootNamespace>HostedAzureSearchRag</RootNamespace>
     <AssemblyName>HostedAzureSearchRag</AssemblyName>
     <UserSecretsId>6f2c3d71-5cbd-48fa-9a66-d807dadfb310</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
     <PackageReference Include="Azure.Search.Documents" Version="12.0.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ChatClientAgent-Dockerfile/HostedChatClientAgentDocker.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ChatClientAgent-Dockerfile/HostedChatClientAgentDocker.csproj
index 31a65fd0b7a..789ec148637 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ChatClientAgent-Dockerfile/HostedChatClientAgentDocker.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ChatClientAgent-Dockerfile/HostedChatClientAgentDocker.csproj
@@ -30,15 +30,15 @@
     <RootNamespace>HostedChatClientAgentDocker</RootNamespace>
     <AssemblyName>HostedChatClientAgentDocker</AssemblyName>
     <UserSecretsId>7b1c3f04-24a1-4f0e-9a5e-0d2f6b8c1e57</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ChatClientAgent/HostedChatClientAgent.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ChatClientAgent/HostedChatClientAgent.csproj
index 4fe1a8567bd..7c22aa583c3 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ChatClientAgent/HostedChatClientAgent.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ChatClientAgent/HostedChatClientAgent.csproj
@@ -31,15 +31,15 @@
     <RootNamespace>HostedChatClientAgent</RootNamespace>
     <AssemblyName>HostedChatClientAgent</AssemblyName>
     <UserSecretsId>222d2622-da26-4da0-99b4-0507fb8d41b0</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Files/HostedFiles.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Files/HostedFiles.csproj
index e983585e102..6ad7d15e491 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Files/HostedFiles.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Files/HostedFiles.csproj
@@ -27,15 +27,15 @@
     <RootNamespace>HostedFiles</RootNamespace>
     <AssemblyName>HostedFiles</AssemblyName>
     <UserSecretsId>204facfe-a494-4273-a330-3ffa649bb789</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-FoundryAgent/HostedFoundryAgent.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-FoundryAgent/HostedFoundryAgent.csproj
index 4ca073ff473..c85f5d658ff 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-FoundryAgent/HostedFoundryAgent.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-FoundryAgent/HostedFoundryAgent.csproj
@@ -27,15 +27,15 @@
     <RootNamespace>HostedFoundryAgent</RootNamespace>
     <AssemblyName>HostedFoundryAgent</AssemblyName>
     <UserSecretsId>9c3949a1-1d2f-453e-abeb-0643b1b95e88</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-LocalCodeAct/HostedLocalCodeAct.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-LocalCodeAct/HostedLocalCodeAct.csproj
index fc6fe1f703d..23f1e667125 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-LocalCodeAct/HostedLocalCodeAct.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-LocalCodeAct/HostedLocalCodeAct.csproj
@@ -34,9 +34,9 @@
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.LocalCodeAct" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-LocalTools/HostedLocalTools.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-LocalTools/HostedLocalTools.csproj
index b3b353e321f..5bc2f34eac2 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-LocalTools/HostedLocalTools.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-LocalTools/HostedLocalTools.csproj
@@ -31,15 +31,15 @@
     <RootNamespace>HostedLocalTools</RootNamespace>
     <AssemblyName>HostedLocalTools</AssemblyName>
     <UserSecretsId>682a0481-5544-45e7-ad2b-88e335985c64</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-McpTools/HostedMcpTools.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-McpTools/HostedMcpTools.csproj
index a7b1ac0766b..544ee8e27fd 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-McpTools/HostedMcpTools.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-McpTools/HostedMcpTools.csproj
@@ -27,16 +27,16 @@
     <RootNamespace>HostedMcpTools</RootNamespace>
     <AssemblyName>HostedMcpTools</AssemblyName>
     <UserSecretsId>2bfa4cec-b6ef-4e75-b2ca-8f7947cb6419</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="ModelContextProtocol" Version="2.1.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="ModelContextProtocol" Version="2.2.0" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-MemoryAgent/HostedMemoryAgent.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-MemoryAgent/HostedMemoryAgent.csproj
index e8af43f73d7..38faaa3adf1 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-MemoryAgent/HostedMemoryAgent.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-MemoryAgent/HostedMemoryAgent.csproj
@@ -28,15 +28,15 @@
     <AssemblyName>HostedMemoryAgent</AssemblyName>
     <UserSecretsId>7933e8df-ba8d-4e62-b419-6d34d53de308</UserSecretsId>
     <NoWarn>$(NoWarn);MAAI001</NoWarn>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Observability/HostedObservability.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Observability/HostedObservability.csproj
index 452b29f12b2..77aa614c71a 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Observability/HostedObservability.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Observability/HostedObservability.csproj
@@ -27,15 +27,15 @@
     <RootNamespace>HostedObservability</RootNamespace>
     <AssemblyName>HostedObservability</AssemblyName>
     <UserSecretsId>f401dcb9-9636-4c3d-ab4a-4fb68773a1a1</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Steering/HostedSteering.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Steering/HostedSteering.csproj
index c8dfe5fa9e1..02d9d2688fd 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Steering/HostedSteering.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Steering/HostedSteering.csproj
@@ -32,7 +32,7 @@
   <ItemGroup>
     <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-TextRag/HostedTextRag.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-TextRag/HostedTextRag.csproj
index a103967b694..bd291033500 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-TextRag/HostedTextRag.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-TextRag/HostedTextRag.csproj
@@ -27,15 +27,15 @@
     <RootNamespace>HostedTextRag</RootNamespace>
     <AssemblyName>HostedTextRag</AssemblyName>
     <UserSecretsId>39b2c04e-bcf6-42d7-aac3-ed5a24a3af75</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Toolbox-AuthPaths/Hosted-Toolbox-AuthPaths.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Toolbox-AuthPaths/Hosted-Toolbox-AuthPaths.csproj
index 1ca68f453f2..e57fc32f41c 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Toolbox-AuthPaths/Hosted-Toolbox-AuthPaths.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Toolbox-AuthPaths/Hosted-Toolbox-AuthPaths.csproj
@@ -27,15 +27,15 @@
     <RootNamespace>HostedToolboxAuthPaths</RootNamespace>
     <AssemblyName>HostedToolboxAuthPaths</AssemblyName>
     <UserSecretsId>9c28c80c-ee05-4383-9b9d-aa0efbf5a198</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Toolbox/HostedToolbox.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Toolbox/HostedToolbox.csproj
index 94da86c5755..b27b2cc8232 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Toolbox/HostedToolbox.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Toolbox/HostedToolbox.csproj
@@ -27,15 +27,15 @@
     <RootNamespace>HostedToolbox</RootNamespace>
     <AssemblyName>HostedToolbox</AssemblyName>
     <UserSecretsId>5d5195de-e14f-4130-bdad-102a5ef3f592</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ToolboxMcpSkills/HostedToolboxMcpSkills.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ToolboxMcpSkills/HostedToolboxMcpSkills.csproj
index f9229d5bc13..9f2cf9a1712 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ToolboxMcpSkills/HostedToolboxMcpSkills.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-ToolboxMcpSkills/HostedToolboxMcpSkills.csproj
@@ -27,17 +27,18 @@
     <RootNamespace>HostedToolboxMcpSkills</RootNamespace>
     <AssemblyName>HostedToolboxMcpSkills</AssemblyName>
     <UserSecretsId>466c2502-39a9-4548-89b5-e92e14cd7fa3</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Microsoft.Agents.AI.Mcp" Version="1.15.0-alpha.260722.1" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Microsoft.Agents.AI.Mcp" Version="1.20.0-alpha.260831.1" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="ModelContextProtocol" Version="2.1.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="ModelContextProtocol" Version="2.2.0" />
+    <PackageReference Include="ModelContextProtocol.Extensions.Tasks" Version="2.2.0" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Handoff/HostedWorkflowHandoff.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Handoff/HostedWorkflowHandoff.csproj
index 43d63de1389..7d73e2f135b 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Handoff/HostedWorkflowHandoff.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Handoff/HostedWorkflowHandoff.csproj
@@ -16,7 +16,7 @@
     <AssemblyName>HostedWorkflowHandoff</AssemblyName>
     <UserSecretsId>92fa9432-1e9c-4f74-a2c2-7423f2042504</UserSecretsId>
     <NoWarn>$(NoWarn);NU1605;MAAIW001;OPENAI001</NoWarn>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
@@ -24,10 +24,10 @@
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Hosting" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
-    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="10.9.0" />
-    <PackageReference Include="ModelContextProtocol" Version="2.1.0" />
-    <PackageReference Include="OpenAI" Version="2.12.0" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
+    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="10.10.0" />
+    <PackageReference Include="ModelContextProtocol" Version="2.2.0" />
+    <PackageReference Include="OpenAI" Version="2.13.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Resilient-Long-Running/HostedWorkflowResilientLongRunning.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Resilient-Long-Running/HostedWorkflowResilientLongRunning.csproj
index cd1bfe36bff..3f5d3a89b61 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Resilient-Long-Running/HostedWorkflowResilientLongRunning.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Resilient-Long-Running/HostedWorkflowResilientLongRunning.csproj
@@ -34,7 +34,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Resilient/HostedWorkflowResilient.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Resilient/HostedWorkflowResilient.csproj
index 51c3561360e..696a5fccc7b 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Resilient/HostedWorkflowResilient.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Resilient/HostedWorkflowResilient.csproj
@@ -32,7 +32,7 @@
   <ItemGroup>
     <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Simple/HostedWorkflowSimple.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Simple/HostedWorkflowSimple.csproj
index e679a7543e4..21aba3b2a6f 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Simple/HostedWorkflowSimple.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/responses/Hosted-Workflow-Simple/HostedWorkflowSimple.csproj
@@ -27,15 +27,15 @@
     <RootNamespace>HostedWorkflowSimple</RootNamespace>
     <AssemblyName>HostedWorkflowSimple</AssemblyName>
     <UserSecretsId>02bc4c01-6d49-46d3-816f-0886f62a520e</UserSecretsId>
-    <AgentFrameworkVersion>1.15.0-preview.260722.1</AgentFrameworkVersion>
+    <AgentFrameworkVersion>1.20.0-preview.260831.1</AgentFrameworkVersion>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Agents.AI.Foundry" Version="$(AgentFrameworkVersion)" />
     <PackageReference Include="Microsoft.Agents.AI.Foundry.Hosting" Version="$(AgentFrameworkVersion)" />
-    <PackageReference Include="Azure.AI.Projects" Version="2.1.0-beta.4" />
+    <PackageReference Include="Azure.AI.Projects" Version="3.0.0-beta.2" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="DotNetEnv" Version="3.1.1" />
+    <PackageReference Include="DotNetEnv" Version="3.2.0" />
   </ItemGroup>
 
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk.Web" />
diff --git a/dotnet/tests/Foundry.Hosting.IntegrationTests/AzureSearchToolAnnotationsHostedAgentTests.cs b/dotnet/tests/Foundry.Hosting.IntegrationTests/AzureSearchToolAnnotationsHostedAgentTests.cs
index ada8866dc8a..832d6449a04 100644
--- a/dotnet/tests/Foundry.Hosting.IntegrationTests/AzureSearchToolAnnotationsHostedAgentTests.cs
+++ b/dotnet/tests/Foundry.Hosting.IntegrationTests/AzureSearchToolAnnotationsHostedAgentTests.cs
@@ -86,10 +86,8 @@ public async Task ResponsesApi_NonStreaming_ReturnsUrlCitationAnnotationsAsync()
 
     private static CreateResponseOptions CreateRequest()
     {
-        CreateResponseOptions options = new()
-        {
-            StoredOutputEnabled = false,
-        };
+        CreateResponseOptions options = ProjectResponsesTestOptions.Create();
+        options.StoredOutputEnabled = false;
         options.InputItems.Add(ResponseItem.CreateUserMessageItem(
             "What item code do I get with my return? Use Azure AI Search and cite the source."));
         return options;
diff --git a/dotnet/tests/Foundry.Hosting.IntegrationTests/ProjectResponsesTestOptions.cs b/dotnet/tests/Foundry.Hosting.IntegrationTests/ProjectResponsesTestOptions.cs
new file mode 100644
index 00000000000..ae39ef655e9
--- /dev/null
+++ b/dotnet/tests/Foundry.Hosting.IntegrationTests/ProjectResponsesTestOptions.cs
@@ -0,0 +1,20 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System.ClientModel.Primitives;
+using OpenAI.Responses;
+
+namespace Foundry.Hosting.IntegrationTests;
+
+internal static class ProjectResponsesTestOptions
+{
+    internal static CreateResponseOptions Create()
+    {
+        CreateResponseOptions options = new();
+#pragma warning disable SCME0001 // Type is for evaluation purposes only and is subject to change or removal in future updates.
+        // ProjectResponsesClient reads extension properties from Patch before sending.
+        // OpenAI 2.13.0 leaves Patch propagators uninitialized until a raw JSON value is assigned.
+        options.Patch = new JsonPatch("{}"u8.ToArray());
+#pragma warning restore SCME0001
+        return options;
+    }
+}
diff --git a/dotnet/tests/Foundry.Hosting.IntegrationTests/ResilientWorkflowHostedAgentTests.cs b/dotnet/tests/Foundry.Hosting.IntegrationTests/ResilientWorkflowHostedAgentTests.cs
index 85a4abbeba3..f403f1a84f3 100644
--- a/dotnet/tests/Foundry.Hosting.IntegrationTests/ResilientWorkflowHostedAgentTests.cs
+++ b/dotnet/tests/Foundry.Hosting.IntegrationTests/ResilientWorkflowHostedAgentTests.cs
@@ -154,11 +154,9 @@ .. Enumerable.Range(1, Target)
 
     private static CreateResponseOptions CreateBackgroundRequest(string input)
     {
-        CreateResponseOptions options = new()
-        {
-            BackgroundModeEnabled = true,
-            StoredOutputEnabled = true,
-        };
+        CreateResponseOptions options = ProjectResponsesTestOptions.Create();
+        options.BackgroundModeEnabled = true;
+        options.StoredOutputEnabled = true;
         options.InputItems.Add(ResponseItem.CreateUserMessageItem(input));
         return options;
     }
diff --git a/dotnet/tests/Foundry.Hosting.IntegrationTests/SessionFilesHostedAgentTests.cs b/dotnet/tests/Foundry.Hosting.IntegrationTests/SessionFilesHostedAgentTests.cs
index 34e14c7e4fd..394bc506a89 100644
--- a/dotnet/tests/Foundry.Hosting.IntegrationTests/SessionFilesHostedAgentTests.cs
+++ b/dotnet/tests/Foundry.Hosting.IntegrationTests/SessionFilesHostedAgentTests.cs
@@ -134,7 +134,8 @@ public async Task UploadedFile_IsReadByHostedAgentAsync()
                 // The platform mutates session/conversation revision when AgentSessionFiles uploads land,
                 // so an immediate /responses follow-up races and 400's with "modified concurrently. Please
                 // retry." — the response message literally tells us to retry. Bounded retry handles it.
-                var readOptions = new CreateResponseOptions { AgentConversationId = conversationId };
+                var readOptions = ProjectResponsesTestOptions.Create();
+                readOptions.AgentConversationId = conversationId;
                 readOptions.InputItems.Add(ResponseItem.CreateUserMessageItem(
                     $"Read {TestDataFileName} from $HOME and quote the headline total revenue figure verbatim, no commentary."));
 
diff --git a/dotnet/tests/Foundry.Hosting.IntegrationTests/SteerableLongRunningHostedAgentTests.cs b/dotnet/tests/Foundry.Hosting.IntegrationTests/SteerableLongRunningHostedAgentTests.cs
index 0d56ff71439..d999dd58342 100644
--- a/dotnet/tests/Foundry.Hosting.IntegrationTests/SteerableLongRunningHostedAgentTests.cs
+++ b/dotnet/tests/Foundry.Hosting.IntegrationTests/SteerableLongRunningHostedAgentTests.cs
@@ -75,12 +75,10 @@ private static CreateResponseOptions CreateBackgroundRequest(
         string conversationId,
         string input)
     {
-        CreateResponseOptions options = new()
-        {
-            AgentConversationId = conversationId,
-            BackgroundModeEnabled = true,
-            StoredOutputEnabled = true,
-        };
+        CreateResponseOptions options = ProjectResponsesTestOptions.Create();
+        options.AgentConversationId = conversationId;
+        options.BackgroundModeEnabled = true;
+        options.StoredOutputEnabled = true;
         options.InputItems.Add(ResponseItem.CreateUserMessageItem(input));
         return options;
     }
diff --git a/dotnet/tests/Foundry.Hosting.IntegrationTests/WebSearchAnnotationsHostedAgentTests.cs b/dotnet/tests/Foundry.Hosting.IntegrationTests/WebSearchAnnotationsHostedAgentTests.cs
index 5bb71c3f92d..4ecac74e3d5 100644
--- a/dotnet/tests/Foundry.Hosting.IntegrationTests/WebSearchAnnotationsHostedAgentTests.cs
+++ b/dotnet/tests/Foundry.Hosting.IntegrationTests/WebSearchAnnotationsHostedAgentTests.cs
@@ -83,10 +83,8 @@ public async Task ResponsesApi_NonStreaming_ReturnsUrlCitationAnnotationsAsync()
 
     private static CreateResponseOptions CreateRequest()
     {
-        CreateResponseOptions options = new()
-        {
-            StoredOutputEnabled = false,
-        };
+        CreateResponseOptions options = ProjectResponsesTestOptions.Create();
+        options.StoredOutputEnabled = false;
         options.InputItems.Add(ResponseItem.CreateUserMessageItem(
             "Search the web for the official Microsoft .NET support policy. " +
             "Report the current support end date for .NET 10 and cite the official source."));
diff --git a/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests/SessionPersistenceTests.cs b/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests/SessionPersistenceTests.cs
index 576f6c2d1c3..bf3674e6780 100644
--- a/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests/SessionPersistenceTests.cs
+++ b/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests/SessionPersistenceTests.cs
@@ -22,6 +22,8 @@ namespace Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests;
 
 public sealed class SessionPersistenceTests : IAsyncDisposable
 {
+    private static readonly JsonSerializerOptions s_aguiJsonSerializerOptions = CreateAGUIJsonSerializerOptions();
+
     private WebApplication? _app;
     private HttpClient? _client;
 
@@ -67,10 +69,11 @@ public async Task MultiTurnWithSessionStore_PersistsSessionAcrossRequestsAsync()
                 {
                     ThreadId = threadId,
                     ParentRunId = previousRunId,
-                    Messages = new[] { secondUserMessage }.AsAGUIMessages().ToList(),
+                    Messages = new[] { secondUserMessage }.AsAGUIMessages(s_aguiJsonSerializerOptions).ToList(),
                 },
             },
         };
+
         List<AgentResponseUpdate> secondTurnUpdates = [];
         await foreach (AgentResponseUpdate update in agent.RunStreamingAsync([secondUserMessage], session, continuationOptions, CancellationToken.None))
         {
@@ -152,6 +155,14 @@ public async ValueTask DisposeAsync()
             await this._app.DisposeAsync();
         }
     }
+
+    private static JsonSerializerOptions CreateAGUIJsonSerializerOptions()
+    {
+        JsonSerializerOptions options = new(AgentAbstractionsJsonUtilities.DefaultOptions);
+        options.TypeInfoResolverChain.Add(AGUIJsonSerializerContext.Default.Options.TypeInfoResolver!);
+        options.MakeReadOnly();
+        return options;
+    }
 }
 
 [SuppressMessage("Performance", "CA1812:Avoid uninstantiated internal classes", Justification = "Instantiated via dependency injection")]
diff --git a/dotnet/tests/Microsoft.Agents.AI.Hosting.AzureStorage.TestUtilities/FakeTestAgentHost.cs b/dotnet/tests/Microsoft.Agents.AI.Hosting.AzureStorage.TestUtilities/FakeTestAgentHost.cs
index 9dcceaeebc3..80a5b30b90c 100644
--- a/dotnet/tests/Microsoft.Agents.AI.Hosting.AzureStorage.TestUtilities/FakeTestAgentHost.cs
+++ b/dotnet/tests/Microsoft.Agents.AI.Hosting.AzureStorage.TestUtilities/FakeTestAgentHost.cs
@@ -25,6 +25,8 @@ internal sealed class FakeTestAgentHost : IAsyncDisposable
 {
     private const string AgentName = "azure-blob-session-agent";
 
+    private static readonly JsonSerializerOptions s_aguiJsonSerializerOptions = CreateAGUIJsonSerializerOptions();
+
     private readonly WebApplication _app;
     private readonly HttpClient _client;
 
@@ -89,7 +91,7 @@ public async Task<FakeTestAgentRunResult> RunTwoTurnsAsync()
                 {
                     ThreadId = runStarted.ThreadId,
                     ParentRunId = runStarted.RunId,
-                    Messages = new[] { secondMessage }.AsAGUIMessages().ToList(),
+                    Messages = new[] { secondMessage }.AsAGUIMessages(s_aguiJsonSerializerOptions).ToList(),
                 },
             },
         };
@@ -115,6 +117,14 @@ public async ValueTask DisposeAsync()
         await this._app.DisposeAsync();
     }
 
+    private static JsonSerializerOptions CreateAGUIJsonSerializerOptions()
+    {
+        JsonSerializerOptions options = new(AgentAbstractionsJsonUtilities.DefaultOptions);
+        options.TypeInfoResolverChain.Add(AGUIJsonSerializerContext.Default.Options.TypeInfoResolver!);
+        options.MakeReadOnly();
+        return options;
+    }
+
     internal sealed record FakeTestAgentRunResult(
         string FirstResponse,
         string SecondResponse);