diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 2d73b2c11655..8b50ec1c8c3b 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -555,34 +555,34 @@
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="9.0.0-beta.25407.2">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="9.0.0-beta.25415.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>e29823691315ed6b3acff20d5bdf3b0be7628283</Sha>
+      <Sha>d87d66c43d0660e5c8e84e667c5c8a8140bce888</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Build.Tasks.Installers" Version="9.0.0-beta.25407.2">
+    <Dependency Name="Microsoft.DotNet.Build.Tasks.Installers" Version="9.0.0-beta.25415.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>e29823691315ed6b3acff20d5bdf3b0be7628283</Sha>
+      <Sha>d87d66c43d0660e5c8e84e667c5c8a8140bce888</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="9.0.0-beta.25407.2">
+    <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="9.0.0-beta.25415.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>e29823691315ed6b3acff20d5bdf3b0be7628283</Sha>
+      <Sha>d87d66c43d0660e5c8e84e667c5c8a8140bce888</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.SignTool" Version="9.0.0-beta.25407.2">
+    <Dependency Name="Microsoft.DotNet.SignTool" Version="9.0.0-beta.25415.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>e29823691315ed6b3acff20d5bdf3b0be7628283</Sha>
+      <Sha>d87d66c43d0660e5c8e84e667c5c8a8140bce888</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.XUnitExtensions" Version="9.0.0-beta.25407.2">
+    <Dependency Name="Microsoft.DotNet.XUnitExtensions" Version="9.0.0-beta.25415.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>e29823691315ed6b3acff20d5bdf3b0be7628283</Sha>
+      <Sha>d87d66c43d0660e5c8e84e667c5c8a8140bce888</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.XliffTasks" Version="9.0.0-beta.25407.2">
+    <Dependency Name="Microsoft.DotNet.XliffTasks" Version="9.0.0-beta.25415.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>e29823691315ed6b3acff20d5bdf3b0be7628283</Sha>
+      <Sha>d87d66c43d0660e5c8e84e667c5c8a8140bce888</Sha>
     </Dependency>
     <!-- Intermediate is necessary for source build. -->
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.arcade" Version="9.0.0-beta.25407.2">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.arcade" Version="9.0.0-beta.25415.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>e29823691315ed6b3acff20d5bdf3b0be7628283</Sha>
+      <Sha>d87d66c43d0660e5c8e84e667c5c8a8140bce888</Sha>
       <SourceBuild RepoName="arcade" ManagedOnly="true" />
     </Dependency>
     <Dependency Name="System.Reflection.MetadataLoadContext" Version="9.0.8">
diff --git a/eng/Versions.props b/eng/Versions.props
index 1864c45e144e..bbdb821e72bc 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -272,10 +272,10 @@
   </PropertyGroup>
   <PropertyGroup>
     <!-- Dependencies from https://github.com/dotnet/arcade -->
-    <MicrosoftDotNetBuildTasksInstallersPackageVersion>9.0.0-beta.25407.2</MicrosoftDotNetBuildTasksInstallersPackageVersion>
-    <MicrosoftDotNetSignToolVersion>9.0.0-beta.25407.2</MicrosoftDotNetSignToolVersion>
-    <MicrosoftDotNetXliffTasksVersion>9.0.0-beta.25407.2</MicrosoftDotNetXliffTasksVersion>
-    <MicrosoftDotNetXUnitExtensionsVersion>9.0.0-beta.25407.2</MicrosoftDotNetXUnitExtensionsVersion>
+    <MicrosoftDotNetBuildTasksInstallersPackageVersion>9.0.0-beta.25415.3</MicrosoftDotNetBuildTasksInstallersPackageVersion>
+    <MicrosoftDotNetSignToolVersion>9.0.0-beta.25415.3</MicrosoftDotNetSignToolVersion>
+    <MicrosoftDotNetXliffTasksVersion>9.0.0-beta.25415.3</MicrosoftDotNetXliffTasksVersion>
+    <MicrosoftDotNetXUnitExtensionsVersion>9.0.0-beta.25415.3</MicrosoftDotNetXUnitExtensionsVersion>
   </PropertyGroup>
   <PropertyGroup>
     <!-- Dependencies from https://github.com/dotnet/sourcelink -->
diff --git a/eng/common/SetupNugetSources.ps1 b/eng/common/SetupNugetSources.ps1
index 5db4ad71ee2f..792b60b49d42 100644
--- a/eng/common/SetupNugetSources.ps1
+++ b/eng/common/SetupNugetSources.ps1
@@ -10,8 +10,8 @@
 #    displayName: Setup Private Feeds Credentials
 #    condition: eq(variables['Agent.OS'], 'Windows_NT')
 #    inputs:
-#      filePath: $(Build.SourcesDirectory)/eng/common/SetupNugetSources.ps1
-#      arguments: -ConfigFile $(Build.SourcesDirectory)/NuGet.config -Password $Env:Token
+#      filePath: $(System.DefaultWorkingDirectory)/eng/common/SetupNugetSources.ps1
+#      arguments: -ConfigFile $(System.DefaultWorkingDirectory)/NuGet.config -Password $Env:Token
 #    env:
 #      Token: $(dn-bot-dnceng-artifact-feeds-rw)
 #
diff --git a/eng/common/SetupNugetSources.sh b/eng/common/SetupNugetSources.sh
index 4604b61b0323..facb415ca6ff 100644
--- a/eng/common/SetupNugetSources.sh
+++ b/eng/common/SetupNugetSources.sh
@@ -11,8 +11,8 @@
 #  - task: Bash@3
 #    displayName: Setup Internal Feeds
 #    inputs:
-#      filePath: $(Build.SourcesDirectory)/eng/common/SetupNugetSources.sh
-#      arguments: $(Build.SourcesDirectory)/NuGet.config
+#      filePath: $(System.DefaultWorkingDirectory)/eng/common/SetupNugetSources.sh
+#      arguments: $(System.DefaultWorkingDirectory)/NuGet.config
 #    condition: ne(variables['Agent.OS'], 'Windows_NT')
 #  - task: NuGetAuthenticate@1
 #
diff --git a/eng/common/core-templates/job/job.yml b/eng/common/core-templates/job/job.yml
index 8947ea3f0593..8da43d3b5837 100644
--- a/eng/common/core-templates/job/job.yml
+++ b/eng/common/core-templates/job/job.yml
@@ -166,7 +166,7 @@ jobs:
       inputs:
         languages: ${{ coalesce(parameters.richCodeNavigationLanguage, 'csharp') }}
         environment: ${{ coalesce(parameters.richCodeNavigationEnvironment, 'internal') }}
-        richNavLogOutputDirectory: $(Build.SourcesDirectory)/artifacts/bin
+        richNavLogOutputDirectory: $(System.DefaultWorkingDirectory)/artifacts/bin
         uploadRichNavArtifacts: ${{ coalesce(parameters.richCodeNavigationUploadArtifacts, false) }}
       continueOnError: true
 
@@ -189,7 +189,7 @@ jobs:
       inputs:
         testResultsFormat: 'xUnit'
         testResultsFiles: '*.xml'
-        searchFolder: '$(Build.SourcesDirectory)/artifacts/TestResults/$(_BuildConfig)'
+        searchFolder: '$(System.DefaultWorkingDirectory)/artifacts/TestResults/$(_BuildConfig)'
         testRunTitle: ${{ coalesce(parameters.testRunTitle, parameters.name, '$(System.JobName)') }}-xunit
         mergeTestResults: ${{ parameters.mergeTestResults }}
       continueOnError: true
@@ -200,7 +200,7 @@ jobs:
       inputs:
         testResultsFormat: 'VSTest'
         testResultsFiles: '*.trx'
-        searchFolder: '$(Build.SourcesDirectory)/artifacts/TestResults/$(_BuildConfig)'
+        searchFolder: '$(System.DefaultWorkingDirectory)/artifacts/TestResults/$(_BuildConfig)'
         testRunTitle: ${{ coalesce(parameters.testRunTitle, parameters.name, '$(System.JobName)') }}-trx
         mergeTestResults: ${{ parameters.mergeTestResults }}
       continueOnError: true
@@ -244,7 +244,7 @@ jobs:
     - task: CopyFiles@2
       displayName: Gather buildconfiguration for build retry
       inputs:
-        SourceFolder: '$(Build.SourcesDirectory)/eng/common/BuildConfiguration'
+        SourceFolder: '$(System.DefaultWorkingDirectory)/eng/common/BuildConfiguration'
         Contents: '**'
         TargetFolder: '$(Build.ArtifactStagingDirectory)/eng/common/BuildConfiguration'
       continueOnError: true
diff --git a/eng/common/core-templates/job/onelocbuild.yml b/eng/common/core-templates/job/onelocbuild.yml
index 00feec8ebbc3..edefa789d360 100644
--- a/eng/common/core-templates/job/onelocbuild.yml
+++ b/eng/common/core-templates/job/onelocbuild.yml
@@ -8,7 +8,7 @@ parameters:
   CeapexPat: $(dn-bot-ceapex-package-r) # PAT for the loc AzDO instance https://dev.azure.com/ceapex
   GithubPat: $(BotAccount-dotnet-bot-repo-PAT)
 
-  SourcesDirectory: $(Build.SourcesDirectory)
+  SourcesDirectory: $(System.DefaultWorkingDirectory)
   CreatePr: true
   AutoCompletePr: false
   ReusePr: true
@@ -68,7 +68,7 @@ jobs:
     - ${{ if ne(parameters.SkipLocProjectJsonGeneration, 'true') }}:
       - task: Powershell@2
         inputs:
-          filePath: $(Build.SourcesDirectory)/eng/common/generate-locproject.ps1
+          filePath: $(System.DefaultWorkingDirectory)/eng/common/generate-locproject.ps1
           arguments: $(_GenerateLocProjectArguments)
         displayName: Generate LocProject.json
         condition: ${{ parameters.condition }}
@@ -115,7 +115,7 @@ jobs:
         is1ESPipeline: ${{ parameters.is1ESPipeline }}
         args:
           displayName: Publish LocProject.json
-          pathToPublish: '$(Build.SourcesDirectory)/eng/Localize/'
+          pathToPublish: '$(System.DefaultWorkingDirectory)/eng/Localize/'
           publishLocation: Container
           artifactName: Loc
           condition: ${{ parameters.condition }}
\ No newline at end of file
diff --git a/eng/common/core-templates/job/publish-build-assets.yml b/eng/common/core-templates/job/publish-build-assets.yml
index 3d3356e31967..b103b7ee1686 100644
--- a/eng/common/core-templates/job/publish-build-assets.yml
+++ b/eng/common/core-templates/job/publish-build-assets.yml
@@ -32,6 +32,8 @@ parameters:
 
   is1ESPipeline: ''
 
+  repositoryAlias: self
+
 jobs:
 - job: Asset_Registry_Publish
 
@@ -72,7 +74,7 @@ jobs:
     - 'Illegal entry point, is1ESPipeline is not defined. Repository yaml should not directly reference templates in core-templates folder.': error
 
   - ${{ if and(eq(parameters.runAsPublic, 'false'), ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
-    - checkout: self
+    - checkout: ${{ parameters.repositoryAlias }}
       fetchDepth: 3
       clean: true
       
@@ -93,7 +95,7 @@ jobs:
         azureSubscription: "Darc: Maestro Production"
         scriptType: ps
         scriptLocation: scriptPath
-        scriptPath: $(Build.SourcesDirectory)/eng/common/sdk-task.ps1
+        scriptPath: $(System.DefaultWorkingDirectory)/eng/common/sdk-task.ps1
         arguments: -task PublishBuildAssets -restore -msbuildEngine dotnet
           /p:ManifestsPath='$(Build.StagingDirectory)/Download/AssetManifests'
           /p:MaestroApiEndpoint=https://maestro.dot.net
@@ -113,7 +115,7 @@ jobs:
           Add-Content -Path $filePath -Value "$(DefaultChannels)"
           Add-Content -Path $filePath -Value $(IsStableBuild)
 
-          $symbolExclusionfile = "$(Build.SourcesDirectory)/eng/SymbolPublishingExclusionsFile.txt"
+          $symbolExclusionfile = "$(System.DefaultWorkingDirectory)/eng/SymbolPublishingExclusionsFile.txt"
           if (Test-Path -Path $symbolExclusionfile)
           {
             Write-Host "SymbolExclusionFile exists"
@@ -142,7 +144,7 @@ jobs:
           azureSubscription: "Darc: Maestro Production"
           scriptType: ps
           scriptLocation: scriptPath
-          scriptPath: $(Build.SourcesDirectory)/eng/common/post-build/publish-using-darc.ps1
+          scriptPath: $(System.DefaultWorkingDirectory)/eng/common/post-build/publish-using-darc.ps1
           arguments: >
             -BuildId $(BARBuildId)
             -PublishingInfraVersion 3
diff --git a/eng/common/core-templates/job/source-index-stage1.yml b/eng/common/core-templates/job/source-index-stage1.yml
index 8b833332b3ee..662b9fcce154 100644
--- a/eng/common/core-templates/job/source-index-stage1.yml
+++ b/eng/common/core-templates/job/source-index-stage1.yml
@@ -66,7 +66,7 @@ jobs:
   - script: ${{ parameters.sourceIndexBuildCommand }}
     displayName: Build Repository
 
-  - script: $(Agent.TempDirectory)/.source-index/tools/BinLogToSln -i $(BinlogPath) -r $(Build.SourcesDirectory) -n $(Build.Repository.Name) -o .source-index/stage1output
+  - script: $(Agent.TempDirectory)/.source-index/tools/BinLogToSln -i $(BinlogPath) -r $(System.DefaultWorkingDirectory) -n $(Build.Repository.Name) -o .source-index/stage1output
     displayName: Process Binlog into indexable sln
 
   - ${{ if and(eq(parameters.runAsPublic, 'false'), ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
diff --git a/eng/common/core-templates/jobs/codeql-build.yml b/eng/common/core-templates/jobs/codeql-build.yml
index f2144252cc65..4571a7864df6 100644
--- a/eng/common/core-templates/jobs/codeql-build.yml
+++ b/eng/common/core-templates/jobs/codeql-build.yml
@@ -25,7 +25,7 @@ jobs:
       - name: DefaultGuardianVersion
         value: 0.109.0
       - name: GuardianPackagesConfigFile
-        value: $(Build.SourcesDirectory)\eng\common\sdl\packages.config
+        value: $(System.DefaultWorkingDirectory)\eng\common\sdl\packages.config
       - name: GuardianVersion
         value: ${{ coalesce(parameters.overrideGuardianVersion, '$(DefaultGuardianVersion)') }}
   
diff --git a/eng/common/core-templates/jobs/jobs.yml b/eng/common/core-templates/jobs/jobs.yml
index ea69be4341c6..3129670b3380 100644
--- a/eng/common/core-templates/jobs/jobs.yml
+++ b/eng/common/core-templates/jobs/jobs.yml
@@ -43,6 +43,7 @@ parameters:
 
   artifacts: {}
   is1ESPipeline: ''
+  repositoryAlias: self
 
 # Internal resources (telemetry, microbuild) can only be accessed from non-public projects,
 # and some (Microbuild) should only be applied to non-PR cases for internal builds.
@@ -117,3 +118,4 @@ jobs:
         enablePublishBuildArtifacts: ${{ parameters.enablePublishBuildArtifacts }}
         artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
         signingValidationAdditionalParameters: ${{ parameters.signingValidationAdditionalParameters }}
+        repositoryAlias: ${{ parameters.repositoryAlias }}
diff --git a/eng/common/core-templates/post-build/post-build.yml b/eng/common/core-templates/post-build/post-build.yml
index a8c0bd3b9214..2ee8bbfff545 100644
--- a/eng/common/core-templates/post-build/post-build.yml
+++ b/eng/common/core-templates/post-build/post-build.yml
@@ -149,7 +149,7 @@ stages:
         - task: PowerShell@2
           displayName: Validate
           inputs:
-            filePath: $(Build.SourcesDirectory)/eng/common/post-build/nuget-validation.ps1
+            filePath: $(System.DefaultWorkingDirectory)/eng/common/post-build/nuget-validation.ps1
             arguments: -PackagesPath $(Build.ArtifactStagingDirectory)/PackageArtifacts/
 
     - job:
@@ -206,7 +206,7 @@ stages:
             filePath: eng\common\sdk-task.ps1
             arguments: -task SigningValidation -restore -msbuildEngine vs
               /p:PackageBasePath='$(Build.ArtifactStagingDirectory)/PackageArtifacts'
-              /p:SignCheckExclusionsFile='$(Build.SourcesDirectory)/eng/SignCheckExclusionsFile.txt'
+              /p:SignCheckExclusionsFile='$(System.DefaultWorkingDirectory)/eng/SignCheckExclusionsFile.txt'
               ${{ parameters.signingValidationAdditionalParameters }}
 
         - template: /eng/common/core-templates/steps/publish-logs.yml
@@ -256,7 +256,7 @@ stages:
         - task: PowerShell@2
           displayName: Validate
           inputs:
-            filePath: $(Build.SourcesDirectory)/eng/common/post-build/sourcelink-validation.ps1
+            filePath: $(System.DefaultWorkingDirectory)/eng/common/post-build/sourcelink-validation.ps1
             arguments: -InputPath $(Build.ArtifactStagingDirectory)/BlobArtifacts/ 
               -ExtractPath $(Agent.BuildDirectory)/Extract/ 
               -GHRepoName $(Build.Repository.Name) 
@@ -311,7 +311,7 @@ stages:
             azureSubscription: "Darc: Maestro Production"
             scriptType: ps
             scriptLocation: scriptPath
-            scriptPath: $(Build.SourcesDirectory)/eng/common/post-build/publish-using-darc.ps1
+            scriptPath: $(System.DefaultWorkingDirectory)/eng/common/post-build/publish-using-darc.ps1
             arguments: >
               -BuildId $(BARBuildId)
               -PublishingInfraVersion ${{ parameters.publishingInfraVersion }}
diff --git a/eng/common/core-templates/post-build/setup-maestro-vars.yml b/eng/common/core-templates/post-build/setup-maestro-vars.yml
index f7602980dbe7..a7abd58c4bb6 100644
--- a/eng/common/core-templates/post-build/setup-maestro-vars.yml
+++ b/eng/common/core-templates/post-build/setup-maestro-vars.yml
@@ -36,7 +36,7 @@ steps:
             $AzureDevOpsBuildId = $Env:Build_BuildId
           }
           else {
-            . $(Build.SourcesDirectory)\eng\common\tools.ps1
+            . $(System.DefaultWorkingDirectory)\eng\common\tools.ps1
             $darc = Get-Darc
             $buildInfo = & $darc get-build `
               --id ${{ parameters.BARBuildId }} `
diff --git a/eng/common/core-templates/steps/enable-internal-sources.yml b/eng/common/core-templates/steps/enable-internal-sources.yml
index 64f881bffc3c..4085512b6909 100644
--- a/eng/common/core-templates/steps/enable-internal-sources.yml
+++ b/eng/common/core-templates/steps/enable-internal-sources.yml
@@ -17,8 +17,8 @@ steps:
     - task: PowerShell@2
       displayName: Setup Internal Feeds
       inputs:
-        filePath: $(Build.SourcesDirectory)/eng/common/SetupNugetSources.ps1
-        arguments: -ConfigFile $(Build.SourcesDirectory)/NuGet.config -Password $Env:Token
+        filePath: $(System.DefaultWorkingDirectory)/eng/common/SetupNugetSources.ps1
+        arguments: -ConfigFile $(System.DefaultWorkingDirectory)/NuGet.config -Password $Env:Token
       env:
         Token: ${{ parameters.legacyCredential }}
   # If running on dnceng (internal project), just use the default behavior for NuGetAuthenticate.
@@ -29,8 +29,8 @@ steps:
       - task: PowerShell@2
         displayName: Setup Internal Feeds
         inputs:
-          filePath: $(Build.SourcesDirectory)/eng/common/SetupNugetSources.ps1
-          arguments: -ConfigFile $(Build.SourcesDirectory)/NuGet.config
+          filePath: $(System.DefaultWorkingDirectory)/eng/common/SetupNugetSources.ps1
+          arguments: -ConfigFile $(System.DefaultWorkingDirectory)/NuGet.config
     - ${{ else }}:
       - template: /eng/common/templates/steps/get-federated-access-token.yml
         parameters:
@@ -39,8 +39,8 @@ steps:
       - task: PowerShell@2
         displayName: Setup Internal Feeds
         inputs:
-          filePath: $(Build.SourcesDirectory)/eng/common/SetupNugetSources.ps1
-          arguments: -ConfigFile $(Build.SourcesDirectory)/NuGet.config -Password $(dnceng-artifacts-feeds-read-access-token)
+          filePath: $(System.DefaultWorkingDirectory)/eng/common/SetupNugetSources.ps1
+          arguments: -ConfigFile $(System.DefaultWorkingDirectory)/NuGet.config -Password $(dnceng-artifacts-feeds-read-access-token)
   # This is required in certain scenarios to install the ADO credential provider.
   # It installed by default in some msbuild invocations (e.g. VS msbuild), but needs to be installed for others
   # (e.g. dotnet msbuild).
diff --git a/eng/common/core-templates/steps/generate-sbom.yml b/eng/common/core-templates/steps/generate-sbom.yml
index 56a090094824..7f5b84c4cb82 100644
--- a/eng/common/core-templates/steps/generate-sbom.yml
+++ b/eng/common/core-templates/steps/generate-sbom.yml
@@ -6,7 +6,7 @@
 
 parameters:
   PackageVersion: 9.0.0
-  BuildDropPath: '$(Build.SourcesDirectory)/artifacts'
+  BuildDropPath: '$(System.DefaultWorkingDirectory)/artifacts'
   PackageName: '.NET'
   ManifestDirPath: $(Build.ArtifactStagingDirectory)/sbom
   IgnoreDirectories: ''
diff --git a/eng/common/core-templates/steps/publish-logs.yml b/eng/common/core-templates/steps/publish-logs.yml
index 80788c523191..0623ac6e1123 100644
--- a/eng/common/core-templates/steps/publish-logs.yml
+++ b/eng/common/core-templates/steps/publish-logs.yml
@@ -12,22 +12,22 @@ steps:
   inputs:
     targetType: inline
     script: |
-      New-Item -ItemType Directory $(Build.SourcesDirectory)/PostBuildLogs/${{parameters.StageLabel}}/${{parameters.JobLabel}}/
-      Move-Item -Path $(Build.SourcesDirectory)/artifacts/log/Debug/* $(Build.SourcesDirectory)/PostBuildLogs/${{parameters.StageLabel}}/${{parameters.JobLabel}}/
+      New-Item -ItemType Directory $(System.DefaultWorkingDirectory)/PostBuildLogs/${{parameters.StageLabel}}/${{parameters.JobLabel}}/
+      Move-Item -Path $(System.DefaultWorkingDirectory)/artifacts/log/Debug/* $(System.DefaultWorkingDirectory)/PostBuildLogs/${{parameters.StageLabel}}/${{parameters.JobLabel}}/
   continueOnError: true
   condition: always()
     
 - task: PowerShell@2
   displayName: Redact Logs
   inputs:
-    filePath: $(Build.SourcesDirectory)/eng/common/post-build/redact-logs.ps1
+    filePath: $(System.DefaultWorkingDirectory)/eng/common/post-build/redact-logs.ps1
     # For now this needs to have explicit list of all sensitive data. Taken from eng/publishing/v3/publish.yml
-    # Sensitive data can as well be added to $(Build.SourcesDirectory)/eng/BinlogSecretsRedactionFile.txt'
+    # Sensitive data can as well be added to $(System.DefaultWorkingDirectory)/eng/BinlogSecretsRedactionFile.txt'
     #  If the file exists - sensitive data for redaction will be sourced from it
     #  (single entry per line, lines starting with '# ' are considered comments and skipped)
-    arguments: -InputPath '$(Build.SourcesDirectory)/PostBuildLogs' 
+    arguments: -InputPath '$(System.DefaultWorkingDirectory)/PostBuildLogs' 
       -BinlogToolVersion ${{parameters.BinlogToolVersion}}
-      -TokensFilePath '$(Build.SourcesDirectory)/eng/BinlogSecretsRedactionFile.txt'
+      -TokensFilePath '$(System.DefaultWorkingDirectory)/eng/BinlogSecretsRedactionFile.txt'
       '$(publishing-dnceng-devdiv-code-r-build-re)'
       '$(MaestroAccessToken)'
       '$(dn-bot-all-orgs-artifact-feeds-rw)'
@@ -42,7 +42,7 @@ steps:
 - task: CopyFiles@2
   displayName: Gather post build logs
   inputs:
-    SourceFolder: '$(Build.SourcesDirectory)/PostBuildLogs'
+    SourceFolder: '$(System.DefaultWorkingDirectory)/PostBuildLogs'
     Contents: '**'
     TargetFolder: '$(Build.ArtifactStagingDirectory)/PostBuildLogs'
 
diff --git a/eng/common/core-templates/steps/source-build.yml b/eng/common/core-templates/steps/source-build.yml
index 37133b55b754..730f7ab2b674 100644
--- a/eng/common/core-templates/steps/source-build.yml
+++ b/eng/common/core-templates/steps/source-build.yml
@@ -97,7 +97,7 @@ steps:
 - task: CopyFiles@2
   displayName: Prepare BuildLogs staging directory
   inputs:
-    SourceFolder: '$(Build.SourcesDirectory)'
+    SourceFolder: '$(System.DefaultWorkingDirectory)'
     Contents: |
       **/*.log
       **/*.binlog
@@ -126,5 +126,5 @@ steps:
   parameters:
     displayName: Component Detection (Exclude upstream cache)
     is1ESPipeline: ${{ parameters.is1ESPipeline }}
-    componentGovernanceIgnoreDirectories: '$(Build.SourcesDirectory)/artifacts/sb/src/artifacts/obj/source-built-upstream-cache'
+    componentGovernanceIgnoreDirectories: '$(System.DefaultWorkingDirectory)/artifacts/sb/src/artifacts/obj/source-built-upstream-cache'
     disableComponentGovernance: ${{ eq(variables['System.TeamProject'], 'public') }}
diff --git a/eng/common/template-guidance.md b/eng/common/template-guidance.md
index 98bbc1ded0ba..4bf4cf41bd7c 100644
--- a/eng/common/template-guidance.md
+++ b/eng/common/template-guidance.md
@@ -50,7 +50,7 @@ extends:
           - task: CopyFiles@2
               displayName: Gather build output
               inputs:
-                SourceFolder: '$(Build.SourcesDirectory)/artifacts/marvel'
+                SourceFolder: '$(System.DefaultWorkingDirectory)/artifacts/marvel'
                 Contents: '**'
                 TargetFolder: '$(Build.ArtifactStagingDirectory)/artifacts/marvel'
 ```
diff --git a/eng/common/templates-official/job/job.yml b/eng/common/templates-official/job/job.yml
index 817555505aa6..81ea7a261f2d 100644
--- a/eng/common/templates-official/job/job.yml
+++ b/eng/common/templates-official/job/job.yml
@@ -3,7 +3,7 @@ parameters:
   enableSbom: true
   runAsPublic: false
   PackageVersion: 9.0.0
-  BuildDropPath: '$(Build.SourcesDirectory)/artifacts'
+  BuildDropPath: '$(System.DefaultWorkingDirectory)/artifacts'
 
 jobs:
 - template: /eng/common/core-templates/job/job.yml
diff --git a/eng/common/templates-official/variables/sdl-variables.yml b/eng/common/templates-official/variables/sdl-variables.yml
index dbdd66d4a4b3..f1311bbb1b33 100644
--- a/eng/common/templates-official/variables/sdl-variables.yml
+++ b/eng/common/templates-official/variables/sdl-variables.yml
@@ -4,4 +4,4 @@ variables:
 - name: DefaultGuardianVersion
   value: 0.109.0
 - name: GuardianPackagesConfigFile
-  value: $(Build.SourcesDirectory)\eng\common\sdl\packages.config
\ No newline at end of file
+  value: $(System.DefaultWorkingDirectory)\eng\common\sdl\packages.config
\ No newline at end of file
diff --git a/eng/common/templates/job/job.yml b/eng/common/templates/job/job.yml
index d1aeb92fcea5..5bdd3dd85fd2 100644
--- a/eng/common/templates/job/job.yml
+++ b/eng/common/templates/job/job.yml
@@ -6,7 +6,7 @@ parameters:
   enableSbom: true
   runAsPublic: false
   PackageVersion: 9.0.0
-  BuildDropPath: '$(Build.SourcesDirectory)/artifacts'
+  BuildDropPath: '$(System.DefaultWorkingDirectory)/artifacts'
 
 jobs:
 - template: /eng/common/core-templates/job/job.yml
@@ -75,7 +75,7 @@ jobs:
         parameters:
           is1ESPipeline: false
           args:
-            targetPath: '$(Build.SourcesDirectory)\eng\common\BuildConfiguration'
+            targetPath: '$(System.DefaultWorkingDirectory)\eng\common\BuildConfiguration'
             artifactName: 'BuildConfiguration'
             displayName: 'Publish build retry configuration'
             continueOnError: true
diff --git a/global.json b/global.json
index 6f0774463856..6612de79b2b8 100644
--- a/global.json
+++ b/global.json
@@ -17,8 +17,8 @@
     "cmake": "latest"
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.25407.2",
-    "Microsoft.DotNet.Helix.Sdk": "9.0.0-beta.25407.2",
+    "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.25415.3",
+    "Microsoft.DotNet.Helix.Sdk": "9.0.0-beta.25415.3",
     "Microsoft.Build.NoTargets": "3.7.0",
     "Microsoft.DotNet.CMake.Sdk": "9.0.0-beta.24217.1"
   }