diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index e514af1da49..6bc51438b45 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -206,17 +206,17 @@
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="9.0.0-beta.25562.4">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="9.0.0-beta.25608.5">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>6e2d8e204cebac7d3989c1996f96e5a9ed63fa80</Sha>
+      <Sha>92e45d251889042fd956e18b28d489020298d864</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="9.0.0-beta.25562.4">
+    <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="9.0.0-beta.25608.5">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>6e2d8e204cebac7d3989c1996f96e5a9ed63fa80</Sha>
+      <Sha>92e45d251889042fd956e18b28d489020298d864</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Build.Tasks.Templating" Version="9.0.0-beta.25562.4">
+    <Dependency Name="Microsoft.DotNet.Build.Tasks.Templating" Version="9.0.0-beta.25608.5">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>6e2d8e204cebac7d3989c1996f96e5a9ed63fa80</Sha>
+      <Sha>92e45d251889042fd956e18b28d489020298d864</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index bd1927bc680..09cf49432a9 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -86,7 +86,7 @@
     <!-- Dependencies from https://github.com/dotnet/efcore -->
     <MicrosoftEntityFrameworkCoreSqliteVersion>9.0.11</MicrosoftEntityFrameworkCoreSqliteVersion>
     <!-- Dependencies from https://github.com/dotnet/arcade -->
-    <MicrosoftDotNetBuildTasksTemplatingVersion>9.0.0-beta.25562.4</MicrosoftDotNetBuildTasksTemplatingVersion>
+    <MicrosoftDotNetBuildTasksTemplatingVersion>9.0.0-beta.25608.5</MicrosoftDotNetBuildTasksTemplatingVersion>
   </PropertyGroup>
   <PropertyGroup Label="net10">
     <!-- Packages from dotnet/runtime -->
diff --git a/eng/common/core-templates/job/source-build.yml b/eng/common/core-templates/job/source-build.yml
index 5baedac1e03..1037ccedcb5 100644
--- a/eng/common/core-templates/job/source-build.yml
+++ b/eng/common/core-templates/job/source-build.yml
@@ -65,7 +65,7 @@ jobs:
           demands: ImageOverride -equals build.ubuntu.2004.amd64
         ${{ if eq(variables['System.TeamProject'], 'internal') }}:
           name: $[replace(replace(eq(contains(coalesce(variables['System.PullRequest.TargetBranch'], variables['Build.SourceBranch'], 'refs/heads/main'), 'release'), 'true'), True, 'NetCore1ESPool-Svc-Internal'), False, 'NetCore1ESPool-Internal')]
-          image: 1es-mariner-2
+          image: 1es-azurelinux-3
           os: linux
     ${{ else }}:
       pool:
diff --git a/eng/common/core-templates/job/source-index-stage1.yml b/eng/common/core-templates/job/source-index-stage1.yml
index 662b9fcce15..ddf8c2e00d8 100644
--- a/eng/common/core-templates/job/source-index-stage1.yml
+++ b/eng/common/core-templates/job/source-index-stage1.yml
@@ -6,7 +6,7 @@ parameters:
   sourceIndexBuildCommand: powershell -NoLogo -NoProfile -ExecutionPolicy Bypass -Command "eng/common/build.ps1 -restore -build -binarylog -ci"
   preSteps: []
   binlogPath: artifacts/log/Debug/Build.binlog
-  condition: ''
+  condition: eq(variables['Build.SourceBranch'], 'refs/heads/main')
   dependsOn: ''
   pool: ''
   is1ESPipeline: ''
diff --git a/eng/common/core-templates/steps/source-build.yml b/eng/common/core-templates/steps/source-build.yml
index 0718e4ba902..7846584d2a7 100644
--- a/eng/common/core-templates/steps/source-build.yml
+++ b/eng/common/core-templates/steps/source-build.yml
@@ -41,7 +41,7 @@ steps:
     # in the default public locations.
     internalRuntimeDownloadArgs=
     if [ '$(dotnetbuilds-internal-container-read-token-base64)' != '$''(dotnetbuilds-internal-container-read-token-base64)' ]; then
-      internalRuntimeDownloadArgs='/p:DotNetRuntimeSourceFeed=https://dotnetbuilds.blob.core.windows.net/internal /p:DotNetRuntimeSourceFeedKey=$(dotnetbuilds-internal-container-read-token-base64) --runtimesourcefeed https://dotnetbuilds.blob.core.windows.net/internal --runtimesourcefeedkey $(dotnetbuilds-internal-container-read-token-base64)'
+      internalRuntimeDownloadArgs='/p:DotNetRuntimeSourceFeed=https://ci.dot.net/internal /p:DotNetRuntimeSourceFeedKey=$(dotnetbuilds-internal-container-read-token-base64) --runtimesourcefeed https://ci.dot.net/internal --runtimesourcefeedkey $(dotnetbuilds-internal-container-read-token-base64)'
     fi
 
     buildConfig=Release
diff --git a/global.json b/global.json
index 574d0094ef2..ce536fb582b 100644
--- a/global.json
+++ b/global.json
@@ -20,7 +20,7 @@
   "msbuild-sdks": {
     "Microsoft.Build.NoTargets": "3.7.0",
     "Microsoft.Build.Traversal": "3.2.0",
-    "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.25562.4",
-    "Microsoft.DotNet.Helix.Sdk": "9.0.0-beta.25562.4"
+    "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.25608.5",
+    "Microsoft.DotNet.Helix.Sdk": "9.0.0-beta.25608.5"
   }
 }