diff --git a/NuGet.config b/NuGet.config
index 20b03e413..c8bd4d7c7 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -7,22 +7,17 @@
     <clear />
     <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
     <!--  Begin: Package sources from dotnet-emsdk -->
-    <add key="darc-pub-dotnet-emsdk-71359b1" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-71359b18/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-emsdk -->
     <!--  Begin: Package sources from dotnet-aspnetcore -->
-    <add key="darc-int-dotnet-aspnetcore-c9e3996" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-aspnetcore-c9e39961/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-aspnetcore -->
     <!--  Begin: Package sources from DotNet-msbuild-Trusted -->
     <add key="darc-pub-DotNet-msbuild-Trusted-b5265ef" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-DotNet-msbuild-Trusted-b5265ef3/nuget/v3/index.json" />
     <!--  End: Package sources from DotNet-msbuild-Trusted -->
     <!--  Begin: Package sources from dotnet-runtime -->
-    <add key="darc-int-dotnet-runtime-087e153" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-runtime-087e1532/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-runtime -->
     <!--  Begin: Package sources from dotnet-sdk -->
-    <add key="darc-int-dotnet-sdk-ecfb8a0" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-sdk-ecfb8a05/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-sdk -->
     <!--  Begin: Package sources from dotnet-windowsdesktop -->
-    <add key="darc-int-dotnet-windowsdesktop-dda23bb" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-windowsdesktop-dda23bbe/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-windowsdesktop -->
     <!--End: Package sources managed by Dependency Flow automation. Do not edit the sources above.-->
     <add key="dotnet-tools" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json" />
@@ -42,15 +37,11 @@
   <disabledPackageSources>
     <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
     <!--  Begin: Package sources from dotnet-aspnetcore -->
-    <add key="darc-int-dotnet-aspnetcore-c9e3996" value="true" />
     <!--  End: Package sources from dotnet-aspnetcore -->
     <!--  Begin: Package sources from dotnet-runtime -->
-    <add key="darc-int-dotnet-runtime-087e153" value="true" />
     <!--  Begin: Package sources from dotnet-sdk -->
-    <add key="darc-int-dotnet-sdk-ecfb8a0" value="true" />
     <!--  End: Package sources from dotnet-sdk -->
     <!--  Begin: Package sources from dotnet-windowsdesktop -->
-    <add key="darc-int-dotnet-windowsdesktop-dda23bb" value="true" />
     <!--  End: Package sources from dotnet-windowsdesktop -->
     <!--  End: Package sources from dotnet-runtime -->
     <!--End: Package sources managed by Dependency Flow automation. Do not edit the sources above.-->
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index ecbc2a215..fa45f3d6b 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -219,18 +219,18 @@
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="8.0.0-beta.24204.3">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="8.0.0-beta.24266.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>188340e12c0a372b1681ad6a5e72c608021efdba</Sha>
+      <Sha>e6f70c7dd528f05cd28cec2a179d58c22e91d9ac</Sha>
       <SourceBuild RepoName="arcade" ManagedOnly="true" />
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.CMake.Sdk" Version="8.0.0-beta.24204.3">
+    <Dependency Name="Microsoft.DotNet.CMake.Sdk" Version="8.0.0-beta.24266.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>188340e12c0a372b1681ad6a5e72c608021efdba</Sha>
+      <Sha>e6f70c7dd528f05cd28cec2a179d58c22e91d9ac</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Build.Tasks.Installers" Version="8.0.0-beta.24204.3">
+    <Dependency Name="Microsoft.DotNet.Build.Tasks.Installers" Version="8.0.0-beta.24266.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>188340e12c0a372b1681ad6a5e72c608021efdba</Sha>
+      <Sha>e6f70c7dd528f05cd28cec2a179d58c22e91d9ac</Sha>
     </Dependency>
     <Dependency Name="Microsoft.DotNet.Darc" Version="1.1.0-beta.23578.2">
       <Uri>https://github.com/dotnet/arcade-services</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index e68119e2b..aad8c9682 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -40,7 +40,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <!-- Dependency from https://github.com/dotnet/arcade -->
-    <MicrosoftDotNetBuildTasksInstallersPackageVersion>8.0.0-beta.24204.3</MicrosoftDotNetBuildTasksInstallersPackageVersion>
+    <MicrosoftDotNetBuildTasksInstallersPackageVersion>8.0.0-beta.24266.3</MicrosoftDotNetBuildTasksInstallersPackageVersion>
   </PropertyGroup>
   <PropertyGroup>
     <!-- Dependency from https://github.com/dotnet/arcade-services -->
diff --git a/eng/common/templates-official/job/source-index-stage1.yml b/eng/common/templates-official/job/source-index-stage1.yml
index f0513aee5..43ee0c202 100644
--- a/eng/common/templates-official/job/source-index-stage1.yml
+++ b/eng/common/templates-official/job/source-index-stage1.yml
@@ -1,6 +1,7 @@
 parameters:
   runAsPublic: false
-  sourceIndexPackageVersion: 1.0.1-20230228.2
+  sourceIndexUploadPackageVersion: 2.0.0-20240502.12
+  sourceIndexProcessBinlogPackageVersion: 1.0.1-20240129.2
   sourceIndexPackageSource: https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json
   sourceIndexBuildCommand: powershell -NoLogo -NoProfile -ExecutionPolicy Bypass -Command "eng/common/build.ps1 -restore -build -binarylog -ci"
   preSteps: []
@@ -14,15 +15,15 @@ jobs:
   dependsOn: ${{ parameters.dependsOn }}
   condition: ${{ parameters.condition }}
   variables:
-  - name: SourceIndexPackageVersion
-    value: ${{ parameters.sourceIndexPackageVersion }}
+  - name: SourceIndexUploadPackageVersion
+    value: ${{ parameters.sourceIndexUploadPackageVersion }}
+  - name: SourceIndexProcessBinlogPackageVersion
+    value: ${{ parameters.sourceIndexProcessBinlogPackageVersion }}
   - name: SourceIndexPackageSource
     value: ${{ parameters.sourceIndexPackageSource }}
   - name: BinlogPath
     value: ${{ parameters.binlogPath }}
-  - ${{ if and(eq(parameters.runAsPublic, 'false'), ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
-    - group: source-dot-net stage1 variables
-  - template: /eng/common/templates-official/variables/pool-providers.yml
+  - template: /eng/common/templates/variables/pool-providers.yml
 
   ${{ if ne(parameters.pool, '') }}:
     pool: ${{ parameters.pool }}
@@ -33,24 +34,23 @@ jobs:
         demands: ImageOverride -equals windows.vs2019.amd64.open
       ${{ if eq(variables['System.TeamProject'], 'internal') }}:
         name: $(DncEngInternalBuildPool)
-        image: windows.vs2022.amd64
-        os: windows
+        demands: ImageOverride -equals windows.vs2019.amd64
 
   steps:
   - ${{ each preStep in parameters.preSteps }}:
     - ${{ preStep }}
 
   - task: UseDotNet@2
-    displayName: Use .NET Core SDK 6
+    displayName: Use .NET 8 SDK
     inputs:
       packageType: sdk
-      version: 6.0.x
+      version: 8.0.x
       installationPath: $(Agent.TempDirectory)/dotnet
       workingDirectory: $(Agent.TempDirectory)
 
   - script: |
-      $(Agent.TempDirectory)/dotnet/dotnet tool install BinLogToSln --version $(SourceIndexPackageVersion) --add-source $(SourceIndexPackageSource) --tool-path $(Agent.TempDirectory)/.source-index/tools
-      $(Agent.TempDirectory)/dotnet/dotnet tool install UploadIndexStage1 --version $(SourceIndexPackageVersion) --add-source $(SourceIndexPackageSource) --tool-path $(Agent.TempDirectory)/.source-index/tools
+      $(Agent.TempDirectory)/dotnet/dotnet tool install BinLogToSln --version $(sourceIndexProcessBinlogPackageVersion) --add-source $(SourceIndexPackageSource) --tool-path $(Agent.TempDirectory)/.source-index/tools
+      $(Agent.TempDirectory)/dotnet/dotnet tool install UploadIndexStage1 --version $(sourceIndexUploadPackageVersion) --add-source $(SourceIndexPackageSource) --tool-path $(Agent.TempDirectory)/.source-index/tools
     displayName: Download Tools
     # Set working directory to temp directory so 'dotnet' doesn't try to use global.json and use the repo's sdk.
     workingDirectory: $(Agent.TempDirectory)
@@ -62,7 +62,24 @@ jobs:
     displayName: Process Binlog into indexable sln
 
   - ${{ if and(eq(parameters.runAsPublic, 'false'), ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
-    - script: $(Agent.TempDirectory)/.source-index/tools/UploadIndexStage1 -i .source-index/stage1output -n $(Build.Repository.Name)
-      displayName: Upload stage1 artifacts to source index
-      env:
-        BLOB_CONTAINER_URL: $(source-dot-net-stage1-blob-container-url)
+    - task: AzureCLI@2
+      displayName: Get stage 1 auth token
+      inputs:
+        azureSubscription: 'SourceDotNet Stage1 Publish'
+        addSpnToEnvironment: true
+        scriptType: 'ps'
+        scriptLocation: 'inlineScript'
+        inlineScript: |
+          echo "##vso[task.setvariable variable=ARM_CLIENT_ID]$env:servicePrincipalId"
+          echo "##vso[task.setvariable variable=ARM_ID_TOKEN]$env:idToken"
+          echo "##vso[task.setvariable variable=ARM_TENANT_ID]$env:tenantId"
+
+    - script: |
+        echo "Client ID: $(ARM_CLIENT_ID)"
+        echo "ID Token: $(ARM_ID_TOKEN)"
+        echo "Tenant ID: $(ARM_TENANT_ID)"
+        az login --service-principal -u $(ARM_CLIENT_ID) --tenant $(ARM_TENANT_ID) --allow-no-subscriptions --federated-token $(ARM_ID_TOKEN)
+      displayName: "Login to Azure"
+
+    - script: $(Agent.TempDirectory)/.source-index/tools/UploadIndexStage1 -i .source-index/stage1output -n $(Build.Repository.Name) -s netsourceindexstage1 -b stage1
+      displayName: Upload stage1 artifacts to source index
\ No newline at end of file
diff --git a/eng/common/templates/job/source-index-stage1.yml b/eng/common/templates/job/source-index-stage1.yml
index b98202aa0..43ee0c202 100644
--- a/eng/common/templates/job/source-index-stage1.yml
+++ b/eng/common/templates/job/source-index-stage1.yml
@@ -1,6 +1,7 @@
 parameters:
   runAsPublic: false
-  sourceIndexPackageVersion: 1.0.1-20230228.2
+  sourceIndexUploadPackageVersion: 2.0.0-20240502.12
+  sourceIndexProcessBinlogPackageVersion: 1.0.1-20240129.2
   sourceIndexPackageSource: https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json
   sourceIndexBuildCommand: powershell -NoLogo -NoProfile -ExecutionPolicy Bypass -Command "eng/common/build.ps1 -restore -build -binarylog -ci"
   preSteps: []
@@ -14,14 +15,14 @@ jobs:
   dependsOn: ${{ parameters.dependsOn }}
   condition: ${{ parameters.condition }}
   variables:
-  - name: SourceIndexPackageVersion
-    value: ${{ parameters.sourceIndexPackageVersion }}
+  - name: SourceIndexUploadPackageVersion
+    value: ${{ parameters.sourceIndexUploadPackageVersion }}
+  - name: SourceIndexProcessBinlogPackageVersion
+    value: ${{ parameters.sourceIndexProcessBinlogPackageVersion }}
   - name: SourceIndexPackageSource
     value: ${{ parameters.sourceIndexPackageSource }}
   - name: BinlogPath
     value: ${{ parameters.binlogPath }}
-  - ${{ if and(eq(parameters.runAsPublic, 'false'), ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
-    - group: source-dot-net stage1 variables
   - template: /eng/common/templates/variables/pool-providers.yml
 
   ${{ if ne(parameters.pool, '') }}:
@@ -40,16 +41,16 @@ jobs:
     - ${{ preStep }}
 
   - task: UseDotNet@2
-    displayName: Use .NET Core SDK 6
+    displayName: Use .NET 8 SDK
     inputs:
       packageType: sdk
-      version: 6.0.x
+      version: 8.0.x
       installationPath: $(Agent.TempDirectory)/dotnet
       workingDirectory: $(Agent.TempDirectory)
 
   - script: |
-      $(Agent.TempDirectory)/dotnet/dotnet tool install BinLogToSln --version $(SourceIndexPackageVersion) --add-source $(SourceIndexPackageSource) --tool-path $(Agent.TempDirectory)/.source-index/tools
-      $(Agent.TempDirectory)/dotnet/dotnet tool install UploadIndexStage1 --version $(SourceIndexPackageVersion) --add-source $(SourceIndexPackageSource) --tool-path $(Agent.TempDirectory)/.source-index/tools
+      $(Agent.TempDirectory)/dotnet/dotnet tool install BinLogToSln --version $(sourceIndexProcessBinlogPackageVersion) --add-source $(SourceIndexPackageSource) --tool-path $(Agent.TempDirectory)/.source-index/tools
+      $(Agent.TempDirectory)/dotnet/dotnet tool install UploadIndexStage1 --version $(sourceIndexUploadPackageVersion) --add-source $(SourceIndexPackageSource) --tool-path $(Agent.TempDirectory)/.source-index/tools
     displayName: Download Tools
     # Set working directory to temp directory so 'dotnet' doesn't try to use global.json and use the repo's sdk.
     workingDirectory: $(Agent.TempDirectory)
@@ -61,7 +62,24 @@ jobs:
     displayName: Process Binlog into indexable sln
 
   - ${{ if and(eq(parameters.runAsPublic, 'false'), ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
-    - script: $(Agent.TempDirectory)/.source-index/tools/UploadIndexStage1 -i .source-index/stage1output -n $(Build.Repository.Name)
-      displayName: Upload stage1 artifacts to source index
-      env:
-        BLOB_CONTAINER_URL: $(source-dot-net-stage1-blob-container-url)
+    - task: AzureCLI@2
+      displayName: Get stage 1 auth token
+      inputs:
+        azureSubscription: 'SourceDotNet Stage1 Publish'
+        addSpnToEnvironment: true
+        scriptType: 'ps'
+        scriptLocation: 'inlineScript'
+        inlineScript: |
+          echo "##vso[task.setvariable variable=ARM_CLIENT_ID]$env:servicePrincipalId"
+          echo "##vso[task.setvariable variable=ARM_ID_TOKEN]$env:idToken"
+          echo "##vso[task.setvariable variable=ARM_TENANT_ID]$env:tenantId"
+
+    - script: |
+        echo "Client ID: $(ARM_CLIENT_ID)"
+        echo "ID Token: $(ARM_ID_TOKEN)"
+        echo "Tenant ID: $(ARM_TENANT_ID)"
+        az login --service-principal -u $(ARM_CLIENT_ID) --tenant $(ARM_TENANT_ID) --allow-no-subscriptions --federated-token $(ARM_ID_TOKEN)
+      displayName: "Login to Azure"
+
+    - script: $(Agent.TempDirectory)/.source-index/tools/UploadIndexStage1 -i .source-index/stage1output -n $(Build.Repository.Name) -s netsourceindexstage1 -b stage1
+      displayName: Upload stage1 artifacts to source index
\ No newline at end of file
diff --git a/global.json b/global.json
index f4af7d9ef..50fd7a407 100644
--- a/global.json
+++ b/global.json
@@ -11,7 +11,7 @@
     "cmake": "3.21.0"
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "8.0.0-beta.24204.3",
-    "Microsoft.DotNet.CMake.Sdk": "8.0.0-beta.24204.3"
+    "Microsoft.DotNet.Arcade.Sdk": "8.0.0-beta.24266.3",
+    "Microsoft.DotNet.CMake.Sdk": "8.0.0-beta.24266.3"
   }
 }