diff --git a/dotnet/Directory.Packages.props b/dotnet/Directory.Packages.props
index 3a95386ab08a..d49a1750410f 100644
--- a/dotnet/Directory.Packages.props
+++ b/dotnet/Directory.Packages.props
@@ -16,9 +16,9 @@
     <PackageVersion Include="Microsoft.Extensions.Configuration.Abstractions" Version="8.0.0" />
     <PackageVersion Include="Microsoft.VisualStudio.Threading" Version="17.11.20" />
     <PackageVersion Include="MSTest.TestFramework" Version="3.6.1" />
-    <PackageVersion Include="OpenAI" Version="[2.1.0-beta.1]" />
+    <PackageVersion Include="OpenAI" Version="[2.1.0-beta.2]" />
     <PackageVersion Include="Azure.AI.ContentSafety" Version="1.0.0" />
-    <PackageVersion Include="Azure.AI.OpenAI" Version="[2.1.0-beta.1]" />
+    <PackageVersion Include="Azure.AI.OpenAI" Version="[2.1.0-beta.2]" />
     <PackageVersion Include="Azure.Identity" Version="1.13.1" />
     <PackageVersion Include="Azure.Monitor.OpenTelemetry.Exporter" Version="1.3.0" />
     <PackageVersion Include="Azure.Search.Documents" Version="11.6.0" />
diff --git a/dotnet/samples/Concepts/ChatCompletion/AzureOpenAIWithData_ChatCompletion.cs b/dotnet/samples/Concepts/ChatCompletion/AzureOpenAIWithData_ChatCompletion.cs
index 8cab1da9df40..56dc76277d97 100644
--- a/dotnet/samples/Concepts/ChatCompletion/AzureOpenAIWithData_ChatCompletion.cs
+++ b/dotnet/samples/Concepts/ChatCompletion/AzureOpenAIWithData_ChatCompletion.cs
@@ -170,7 +170,7 @@ private void OutputCitations(IReadOnlyList<ChatCitation> citations)
             Console.WriteLine($"Chunk ID: {citation.ChunkId}");
             Console.WriteLine($"Title: {citation.Title}");
             Console.WriteLine($"File path: {citation.FilePath}");
-            Console.WriteLine($"URI: {citation.Uri}");
+            Console.WriteLine($"URL: {citation.Url}");
             Console.WriteLine($"Content: {citation.Content}");
         }
     }
diff --git a/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAIAudioToTextServiceTests.cs b/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAIAudioToTextServiceTests.cs
index 0090e37a22ad..05662a5706c8 100644
--- a/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAIAudioToTextServiceTests.cs
+++ b/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAIAudioToTextServiceTests.cs
@@ -221,7 +221,6 @@ public async Task GetTextContentGranularitiesWorksCorrectlyAsync(string[]? granu
 
     public static TheoryData<string?, string?> Versions => new()
     {
-        { null, "2024-08-01-preview" },
         { "V2024_10_01_preview", "2024-10-01-preview" },
         { "V2024_10_01_PREVIEW", "2024-10-01-preview" },
         { "2024_10_01_Preview", "2024-10-01-preview" },
diff --git a/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAIChatCompletionServiceTests.cs b/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAIChatCompletionServiceTests.cs
index 074018f14fe6..0bf81dad8453 100644
--- a/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAIChatCompletionServiceTests.cs
+++ b/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAIChatCompletionServiceTests.cs
@@ -1537,7 +1537,6 @@ public async Task GetStreamingChatMessageContentsWithFunctionCallAndEmptyArgumen
 
     public static TheoryData<string?, string?> Versions => new()
     {
-        { null, "2024-08-01-preview" },
         { "V2024_10_01_preview", "2024-10-01-preview" },
         { "V2024_10_01_PREVIEW", "2024-10-01-preview" },
         { "2024_10_01_Preview", "2024-10-01-preview" },
diff --git a/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextEmbeddingGenerationServiceTests.cs b/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextEmbeddingGenerationServiceTests.cs
index 31f267dd1daf..6dfc0cf9e68b 100644
--- a/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextEmbeddingGenerationServiceTests.cs
+++ b/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextEmbeddingGenerationServiceTests.cs
@@ -127,7 +127,6 @@ public async Task ItTargetsApiVersionAsExpected(string? apiVersion, string? expe
 
     public static TheoryData<string?, string?> Versions => new()
     {
-        { null, "2024-08-01-preview" },
         { "V2024_10_01_preview", "2024-10-01-preview" },
         { "V2024_10_01_PREVIEW", "2024-10-01-preview" },
         { "2024_10_01_Preview", "2024-10-01-preview" },
diff --git a/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextToAudioServiceTests.cs b/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextToAudioServiceTests.cs
index f40bce5635a9..3ad42a32eac6 100644
--- a/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextToAudioServiceTests.cs
+++ b/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextToAudioServiceTests.cs
@@ -234,7 +234,6 @@ public async Task ItTargetsApiVersionAsExpected(string? apiVersion, string? expe
 
     public static TheoryData<string?, string?> Versions => new()
     {
-        { null, "2024-08-01-preview" },
         { "V2024_10_01_preview", "2024-10-01-preview" },
         { "V2024_10_01_PREVIEW", "2024-10-01-preview" },
         { "2024_10_01_Preview", "2024-10-01-preview" },
diff --git a/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextToImageServiceTests.cs b/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextToImageServiceTests.cs
index 4a851a1ea542..d2c9e1081c45 100644
--- a/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextToImageServiceTests.cs
+++ b/dotnet/src/Connectors/Connectors.AzureOpenAI.UnitTests/Services/AzureOpenAITextToImageServiceTests.cs
@@ -361,7 +361,6 @@ public async Task ItTargetsApiVersionAsExpected(string? apiVersion, string? expe
 
     public static TheoryData<string?, string?> Versions => new()
     {
-        { null, "2024-08-01-preview" },
         { "V2024_10_01_preview", "2024-10-01-preview" },
         { "V2024_10_01_PREVIEW", "2024-10-01-preview" },
         { "2024_10_01_Preview", "2024-10-01-preview" },
diff --git a/dotnet/src/IntegrationTests/Connectors/AzureOpenAI/AzureOpenAIChatCompletionStreamingTests.cs b/dotnet/src/IntegrationTests/Connectors/AzureOpenAI/AzureOpenAIChatCompletionStreamingTests.cs
index e59b33a05f82..1540ff288197 100644
--- a/dotnet/src/IntegrationTests/Connectors/AzureOpenAI/AzureOpenAIChatCompletionStreamingTests.cs
+++ b/dotnet/src/IntegrationTests/Connectors/AzureOpenAI/AzureOpenAIChatCompletionStreamingTests.cs
@@ -62,7 +62,10 @@ public async Task ChatCompletionShouldUseChatHistoryAndReturnMetadataAsync()
 
             foreach (var key in update.Metadata!.Keys)
             {
-                metadata[key] = update.Metadata[key];
+                if (!metadata.TryGetValue(key, out object? value) || value is null)
+                {
+                    metadata[key] = update.Metadata[key];
+                }
             }
         }
 
@@ -123,7 +126,10 @@ public async Task TextGenerationShouldReturnMetadataAsync()
 
             foreach (var key in update.Metadata!.Keys)
             {
-                metadata[key] = update.Metadata[key];
+                if (!metadata.TryGetValue(key, out object? value) || value is null)
+                {
+                    metadata[key] = update.Metadata[key];
+                }
             }
         }