diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index d243ff7970..66ff1cc9cd 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -3,9 +3,9 @@
   <ProductDependencies>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="10.0.0-beta.25178.2">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="10.0.0-beta.25279.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>7d1967403f5b12406763c666f41e3358bb542ced</Sha>
+      <Sha>69b86684b43321e96f35fa3ea34c5315836ff858</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>
diff --git a/eng/common/build.ps1 b/eng/common/build.ps1
index 6b3be1916f..8cfee107e7 100644
--- a/eng/common/build.ps1
+++ b/eng/common/build.ps1
@@ -21,6 +21,7 @@ Param(
   [switch] $publish,
   [switch] $clean,
   [switch][Alias('pb')]$productBuild,
+  [switch]$fromVMR,
   [switch][Alias('bl')]$binaryLog,
   [switch][Alias('nobl')]$excludeCIBinarylog,
   [switch] $ci,
@@ -74,6 +75,7 @@ function Print-Usage() {
   Write-Host "  -nativeToolsOnMachine   Sets the native tools on machine environment variable (indicating that the script should use native tools on machine)"
   Write-Host "  -nodeReuse <value>      Sets nodereuse msbuild parameter ('true' or 'false')"
   Write-Host "  -buildCheck             Sets /check msbuild parameter"
+  Write-Host "  -fromVMR                Set when building from within the VMR"
   Write-Host ""
 
   Write-Host "Command line arguments not listed above are passed thru to msbuild."
@@ -127,7 +129,8 @@ function Build {
     /p:Deploy=$deploy `
     /p:Test=$test `
     /p:Pack=$pack `
-    /p:DotNetBuildRepo=$productBuild `
+    /p:DotNetBuild=$productBuild `
+    /p:DotNetBuildFromVMR=$fromVMR `
     /p:IntegrationTest=$integrationTest `
     /p:PerformanceTest=$performanceTest `
     /p:Sign=$sign `
diff --git a/eng/common/build.sh b/eng/common/build.sh
index 36fba82a37..9767bb411a 100755
--- a/eng/common/build.sh
+++ b/eng/common/build.sh
@@ -43,6 +43,7 @@ usage()
   echo "  --nodeReuse <value>      Sets nodereuse msbuild parameter ('true' or 'false')"
   echo "  --warnAsError <value>    Sets warnaserror msbuild parameter ('true' or 'false')"
   echo "  --buildCheck <value>     Sets /check msbuild parameter"
+  echo "  --fromVMR                Set when building from within the VMR"
   echo ""
   echo "Command line arguments not listed above are passed thru to msbuild."
   echo "Arguments can also be passed in with a single hyphen."
@@ -64,6 +65,7 @@ restore=false
 build=false
 source_build=false
 product_build=false
+from_vmr=false
 rebuild=false
 test=false
 integration_test=false
@@ -89,7 +91,7 @@ verbosity='minimal'
 runtime_source_feed=''
 runtime_source_feed_key=''
 
-properties=''
+properties=()
 while [[ $# > 0 ]]; do
   opt="$(echo "${1/#--/-}" | tr "[:upper:]" "[:lower:]")"
   case "$opt" in
@@ -129,19 +131,22 @@ while [[ $# > 0 ]]; do
     -pack)
       pack=true
       ;;
-    -sourcebuild|-sb)
+    -sourcebuild|-source-build|-sb)
       build=true
       source_build=true
       product_build=true
       restore=true
       pack=true
       ;;
-    -productBuild|-pb)
+    -productbuild|-product-build|-pb)
       build=true
       product_build=true
       restore=true
       pack=true
       ;;
+    -fromvmr|-from-vmr)
+      from_vmr=true
+      ;;
     -test|-t)
       test=true
       ;;
@@ -187,7 +192,7 @@ while [[ $# > 0 ]]; do
       shift
       ;;
     *)
-      properties="$properties $1"
+      properties+=("$1")
       ;;
   esac
 
@@ -221,7 +226,7 @@ function Build {
   InitializeCustomToolset
 
   if [[ ! -z "$projects" ]]; then
-    properties="$properties /p:Projects=$projects"
+    properties+=("/p:Projects=$projects")
   fi
 
   local bl=""
@@ -241,8 +246,9 @@ function Build {
     /p:RepoRoot="$repo_root" \
     /p:Restore=$restore \
     /p:Build=$build \
-    /p:DotNetBuildRepo=$product_build \
+    /p:DotNetBuild=$product_build \
     /p:DotNetBuildSourceOnly=$source_build \
+    /p:DotNetBuildFromVMR=$from_vmr \
     /p:Rebuild=$rebuild \
     /p:Test=$test \
     /p:Pack=$pack \
@@ -251,7 +257,7 @@ function Build {
     /p:Sign=$sign \
     /p:Publish=$publish \
     /p:RestoreStaticGraphEnableBinaryLogger=$binary_log \
-    $properties
+    ${properties[@]+"${properties[@]}"}
 
   ExitWithExitCode 0
 }
diff --git a/eng/common/core-templates/job/job.yml b/eng/common/core-templates/job/job.yml
index 4dfb3d8683..6badecba7b 100644
--- a/eng/common/core-templates/job/job.yml
+++ b/eng/common/core-templates/job/job.yml
@@ -73,9 +73,6 @@ jobs:
   - ${{ if ne(parameters.enableTelemetry, 'false') }}:
     - name: DOTNET_CLI_TELEMETRY_PROFILE
       value: '$(Build.Repository.Uri)'
-  - ${{ if eq(parameters.enableRichCodeNavigation, 'true') }}:
-    - name: EnableRichCodeNavigation
-      value: 'true'
   # Retry signature validation up to three times, waiting 2 seconds between attempts.
   # See https://learn.microsoft.com/en-us/nuget/reference/errors-and-warnings/nu3028#retry-untrusted-root-failures
   - name: NUGET_EXPERIMENTAL_CHAIN_BUILD_RETRY_POLICY
@@ -147,16 +144,6 @@ jobs:
   - ${{ each step in parameters.steps }}:
     - ${{ step }}
 
-  - ${{ if eq(parameters.enableRichCodeNavigation, true) }}:
-    - task: RichCodeNavIndexer@0
-      displayName: RichCodeNav Upload
-      inputs:
-        languages: ${{ coalesce(parameters.richCodeNavigationLanguage, 'csharp') }}
-        environment: ${{ coalesce(parameters.richCodeNavigationEnvironment, 'internal') }}
-        richNavLogOutputDirectory: $(Build.SourcesDirectory)/artifacts/bin
-        uploadRichNavArtifacts: ${{ coalesce(parameters.richCodeNavigationUploadArtifacts, false) }}
-      continueOnError: true
-
   - ${{ each step in parameters.componentGovernanceSteps }}:
     - ${{ step }}
 
diff --git a/eng/common/core-templates/job/publish-build-assets.yml b/eng/common/core-templates/job/publish-build-assets.yml
index 5da3c2a2a2..d5303229c9 100644
--- a/eng/common/core-templates/job/publish-build-assets.yml
+++ b/eng/common/core-templates/job/publish-build-assets.yml
@@ -29,6 +29,15 @@ parameters:
 
   is1ESPipeline: ''
 
+  # Optional: 🌤️ or not the build has assets it wants to publish to BAR
+  isAssetlessBuild: false
+
+  # Optional, publishing version
+  publishingVersion: 3
+
+  # Optional: A minimatch pattern for the asset manifests to publish to BAR
+  assetManifestsPattern: '*/manifests/**/*.xml'
+
 jobs:
 - job: Asset_Registry_Publish
 
@@ -72,14 +81,33 @@ jobs:
     - checkout: self
       fetchDepth: 3
       clean: true
-      
-    - task: DownloadPipelineArtifact@2
-      displayName: Download Asset Manifests
-      inputs:
-        artifactName: AssetManifests
-        targetPath: '$(Build.StagingDirectory)/AssetManifests'
-      condition: ${{ parameters.condition }}
-      continueOnError: ${{ parameters.continueOnError }}
+
+    - ${{ if eq(parameters.isAssetlessBuild, 'false') }}: 
+      - ${{ if eq(parameters.publishingVersion, 3) }}: 
+        - task: DownloadPipelineArtifact@2
+          displayName: Download Asset Manifests
+          inputs:
+            artifactName: AssetManifests
+            targetPath: '$(Build.StagingDirectory)/AssetManifests'
+          condition: ${{ parameters.condition }}
+          continueOnError: ${{ parameters.continueOnError }}
+      - ${{ if eq(parameters.publishingVersion, 4) }}:
+        - task: DownloadPipelineArtifact@2
+          displayName: Download V4 asset manifests
+          inputs:
+            itemPattern: '*/manifests/**/*.xml'
+            targetPath: '$(Build.StagingDirectory)/AllAssetManifests'
+          condition: ${{ parameters.condition }}
+          continueOnError: ${{ parameters.continueOnError }}
+        - task: CopyFiles@2
+          displayName: Copy V4 asset manifests to AssetManifests
+          inputs:
+            SourceFolder: '$(Build.StagingDirectory)/AllAssetManifests'
+            Contents: ${{ parameters.assetManifestsPattern }}
+            TargetFolder: '$(Build.StagingDirectory)/AssetManifests'
+            flattenFolders: true
+          condition: ${{ parameters.condition }}
+          continueOnError: ${{ parameters.continueOnError }}
     
     - task: NuGetAuthenticate@1
 
@@ -92,6 +120,7 @@ jobs:
         scriptPath: $(Build.SourcesDirectory)/eng/common/sdk-task.ps1
         arguments: -task PublishBuildAssets -restore -msbuildEngine dotnet
           /p:ManifestsPath='$(Build.StagingDirectory)/AssetManifests'
+          /p:IsAssetlessBuild=${{ parameters.isAssetlessBuild }}
           /p:MaestroApiEndpoint=https://maestro.dot.net
           /p:OfficialBuildId=$(Build.BuildNumber)
       condition: ${{ parameters.condition }}
@@ -115,6 +144,17 @@ jobs:
             Copy-Item -Path $symbolExclusionfile -Destination "$(Build.StagingDirectory)/ReleaseConfigs"
           }
 
+    - ${{ if eq(parameters.publishingVersion, 4) }}:
+      - template: /eng/common/core-templates/steps/publish-pipeline-artifacts.yml
+        parameters:
+          is1ESPipeline: ${{ parameters.is1ESPipeline }}
+          args:
+            targetPath: '$(Build.ArtifactStagingDirectory)/MergedManifest.xml'
+            artifactName: AssetManifests
+            displayName: 'Publish Merged Manifest'
+            retryCountOnTaskFailure: 10 # for any logs being locked
+            sbomEnabled: false  # we don't need SBOM for logs
+
     - template: /eng/common/core-templates/steps/publish-build-artifacts.yml
       parameters:
         is1ESPipeline: ${{ parameters.is1ESPipeline }}
@@ -124,7 +164,7 @@ jobs:
           publishLocation: Container
           artifactName: ReleaseConfigs
 
-    - ${{ if eq(parameters.publishAssetsImmediately, 'true') }}:
+    - ${{ if or(eq(parameters.publishAssetsImmediately, 'true'), eq(parameters.isAssetlessBuild, 'true')) }}:
       - template: /eng/common/core-templates/post-build/setup-maestro-vars.yml
         parameters:
           BARBuildId: ${{ parameters.BARBuildId }}
@@ -145,6 +185,7 @@ jobs:
             -WaitPublishingFinish true
             -ArtifactsPublishingAdditionalParameters '${{ parameters.artifactsPublishingAdditionalParameters }}'
             -SymbolPublishingAdditionalParameters '${{ parameters.symbolPublishingAdditionalParameters }}'
+            -SkipAssetsPublishing '${{ parameters.isAssetlessBuild }}'
 
     - ${{ if eq(parameters.enablePublishBuildArtifacts, 'true') }}:
       - template: /eng/common/core-templates/steps/publish-logs.yml
diff --git a/eng/common/core-templates/job/source-build.yml b/eng/common/core-templates/job/source-build.yml
index 05f7ad6ef0..d805d5faeb 100644
--- a/eng/common/core-templates/job/source-build.yml
+++ b/eng/common/core-templates/job/source-build.yml
@@ -27,6 +27,8 @@ parameters:
   #   Specifies the build script to invoke to perform the build in the repo. The default
   #   './build.sh' should work for typical Arcade repositories, but this is customizable for
   #   difficult situations.
+  # buildArguments: ''
+  #   Specifies additional build arguments to pass to the build script.
   # jobProperties: {}
   #   A list of job properties to inject at the top level, for potential extensibility beyond
   #   container and pool.
diff --git a/eng/common/core-templates/jobs/jobs.yml b/eng/common/core-templates/jobs/jobs.yml
index 3d2deaa4a0..bf35b78faa 100644
--- a/eng/common/core-templates/jobs/jobs.yml
+++ b/eng/common/core-templates/jobs/jobs.yml
@@ -27,6 +27,9 @@ parameters:
   # Optional: Publish the assets as soon as the publish to BAR stage is complete, rather doing so in a separate stage.
   publishAssetsImmediately: false
 
+  # Optional: 🌤️ or not the build has assets it wants to publish to BAR
+  isAssetlessBuild: false
+
   # Optional: If using publishAssetsImmediately and additional parameters are needed, can be used to send along additional parameters (normally sent to post-build.yml)
   artifactsPublishingAdditionalParameters: ''
   signingValidationAdditionalParameters: ''
@@ -93,7 +96,7 @@ jobs:
         ${{ parameter.key }}: ${{ parameter.value }}
 
 - ${{ if and(eq(parameters.runAsPublic, 'false'), ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
-  - ${{ if or(eq(parameters.enablePublishBuildAssets, true), eq(parameters.artifacts.publish.manifests, 'true'), ne(parameters.artifacts.publish.manifests, '')) }}:
+  - ${{ if or(eq(parameters.enablePublishBuildAssets, true), eq(parameters.artifacts.publish.manifests, 'true'), ne(parameters.artifacts.publish.manifests, ''), eq(parameters.isAssetlessBuild, true)) }}:
     - template: ../job/publish-build-assets.yml
       parameters:
         is1ESPipeline: ${{ parameters.is1ESPipeline }}
@@ -109,7 +112,8 @@ jobs:
           - Source_Build_Complete
 
         runAsPublic: ${{ parameters.runAsPublic }}
-        publishAssetsImmediately: ${{ parameters.publishAssetsImmediately }}
+        publishAssetsImmediately: ${{ or(parameters.publishAssetsImmediately, parameters.isAssetlessBuild) }}
+        isAssetlessBuild: ${{ parameters.isAssetlessBuild }}
         enablePublishBuildArtifacts: ${{ parameters.enablePublishBuildArtifacts }}
         artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
         signingValidationAdditionalParameters: ${{ parameters.signingValidationAdditionalParameters }}
diff --git a/eng/common/core-templates/jobs/source-build.yml b/eng/common/core-templates/jobs/source-build.yml
index a10ccfbee6..df24c948ba 100644
--- a/eng/common/core-templates/jobs/source-build.yml
+++ b/eng/common/core-templates/jobs/source-build.yml
@@ -14,7 +14,7 @@ parameters:
   # This is the default platform provided by Arcade, intended for use by a managed-only repo.
   defaultManagedPlatform:
     name: 'Managed'
-    container: 'mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream9'
+    container: 'mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream-10-amd64'
 
   # Defines the platforms on which to run build jobs. One job is created for each platform, and the
   # object in this array is sent to the job template as 'platform'. If no platforms are specified,
diff --git a/eng/common/core-templates/post-build/post-build.yml b/eng/common/core-templates/post-build/post-build.yml
index a8c0bd3b92..a151fd811e 100644
--- a/eng/common/core-templates/post-build/post-build.yml
+++ b/eng/common/core-templates/post-build/post-build.yml
@@ -60,6 +60,11 @@ parameters:
       artifactNames: ''
       downloadArtifacts: true
 
+  - name: isAssetlessBuild
+    type: boolean
+    displayName: Is Assetless Build
+    default: false
+
   # These parameters let the user customize the call to sdk-task.ps1 for publishing
   # symbols & general artifacts as well as for signing validation
   - name: symbolPublishingAdditionalParameters
@@ -188,9 +193,6 @@ stages:
             buildId: $(AzDOBuildId)
             artifactName: PackageArtifacts
             checkDownloadedFiles: true
-            itemPattern: |
-              **
-              !**/Microsoft.SourceBuild.Intermediate.*.nupkg
 
         # This is necessary whenever we want to publish/restore to an AzDO private feed
         # Since sdk-task.ps1 tries to restore packages we need to do this authentication here
@@ -320,3 +322,4 @@ stages:
               -RequireDefaultChannels ${{ parameters.requireDefaultChannels }}
               -ArtifactsPublishingAdditionalParameters '${{ parameters.artifactsPublishingAdditionalParameters }}'
               -SymbolPublishingAdditionalParameters '${{ parameters.symbolPublishingAdditionalParameters }}'
+              -SkipAssetsPublishing '${{ parameters.isAssetlessBuild }}'
diff --git a/eng/common/core-templates/steps/install-microbuild.yml b/eng/common/core-templates/steps/install-microbuild.yml
index dba506e74c..a3540ba00c 100644
--- a/eng/common/core-templates/steps/install-microbuild.yml
+++ b/eng/common/core-templates/steps/install-microbuild.yml
@@ -11,30 +11,6 @@ parameters:
 steps:
   - ${{ if eq(parameters.enableMicrobuild, 'true') }}:
     - ${{ if eq(parameters.enableMicrobuildForMacAndLinux, 'true') }}:
-      # Install Python 3.12.x on when Python > 3.12.x is installed - https://github.com/dotnet/source-build/issues/4802
-      - script: |
-          version=$(python3 --version | awk '{print $2}')
-          major=$(echo $version | cut -d. -f1)
-          minor=$(echo $version | cut -d. -f2)
-
-          installPython=false
-          if [ "$major" -gt 3 ] || { [ "$major" -eq 3 ] && [ "$minor" -gt 12 ]; }; then
-            installPython=true
-          fi
-
-          echo "Python version: $version."
-          echo "Install Python 3.12.x: $installPython."
-          echo "##vso[task.setvariable variable=installPython;isOutput=true]$installPython"
-        name: InstallPython
-        displayName: 'Determine Python installation'
-        condition: and(succeeded(), ne(variables['Agent.Os'], 'Windows_NT'))
-
-      - task: UsePythonVersion@0
-        inputs:
-          versionSpec: '3.12.x'
-        displayName: 'Use Python 3.12.x'
-        condition: and(succeeded(), eq(variables['InstallPython.installPython'], 'true'), ne(variables['Agent.Os'], 'Windows_NT'))
-
       # Needed to download the MicroBuild plugin nupkgs on Mac and Linux when nuget.exe is unavailable
       - task: UseDotNet@2
         displayName: Install .NET 8.0 SDK for MicroBuild Plugin
@@ -72,28 +48,3 @@ steps:
             eq(variables['_SignType'], 'real')
           )
         ))
-
-    # Workaround for ESRP CLI on Linux - https://github.com/dotnet/source-build/issues/4964
-    - ${{ if eq(parameters.enableMicrobuildForMacAndLinux, 'true') }}:
-      - task: UseDotNet@2
-        displayName: Install .NET 9.0 SDK for ESRP CLI Workaround
-        inputs:
-          packageType: sdk
-          version: 9.0.x
-          installationPath: ${{ parameters.microBuildOutputFolder }}/.dotnet
-          workingDirectory: ${{ parameters.microBuildOutputFolder }}
-        condition: and(succeeded(), eq(variables['Agent.OS'], 'Linux'))
-
-      - task: PowerShell@2
-        displayName: Workaround for ESRP CLI on Linux
-        inputs:
-          targetType: 'inline'
-          script: |
-            Write-Host "Copying Linux Path"
-            $MBSIGN_APPFOLDER = '$(MBSIGN_APPFOLDER)'
-            $MBSIGN_APPFOLDER = $MBSIGN_APPFOLDER -replace '/build', ''
-            $MBSIGN_APPFOLDER = $MBSIGN_APPFOLDER + '/1.1.1032' + '/build'
-            $MBSIGN_APPFOLDER | Write-Host
-            $SignConfigPath = $MBSIGN_APPFOLDER + '/signconfig.xml'
-            Copy-Item -Path "$(MBSIGN_APPFOLDER)/signconfig.xml" -Destination $SignConfigPath -Force
-        condition: and(succeeded(), eq(variables['Agent.OS'], 'Linux'))
diff --git a/eng/common/core-templates/steps/source-build.yml b/eng/common/core-templates/steps/source-build.yml
index 2341706b06..0dde553c3e 100644
--- a/eng/common/core-templates/steps/source-build.yml
+++ b/eng/common/core-templates/steps/source-build.yml
@@ -19,19 +19,6 @@ steps:
     set -x
     df -h
 
-    # If file changes are detected, set CopyWipIntoInnerSourceBuildRepo to copy the WIP changes into the inner source build repo.
-    internalRestoreArgs=
-    if ! git diff --quiet; then
-      internalRestoreArgs='/p:CopyWipIntoInnerSourceBuildRepo=true'
-      # The 'Copy WIP' feature of source build uses git stash to apply changes from the original repo.
-      # This only works if there is a username/email configured, which won't be the case in most CI runs.
-      git config --get user.email
-      if [ $? -ne 0 ]; then
-        git config user.email dn-bot@microsoft.com
-        git config user.name dn-bot
-      fi
-    fi
-
     # If building on the internal project, the internal storage variable may be available (usually only if needed)
     # In that case, add variables to allow the download of internal runtimes if the specified versions are not found
     # in the default public locations.
@@ -46,34 +33,14 @@ steps:
       buildConfig='$(_BuildConfig)'
     fi
 
-    officialBuildArgs=
-    if [ '${{ and(ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}' = 'True' ]; then
-      officialBuildArgs='/p:DotNetPublishUsingPipelines=true /p:OfficialBuildId=$(BUILD.BUILDNUMBER)'
-    fi
-
     targetRidArgs=
     if [ '${{ parameters.platform.targetRID }}' != '' ]; then
       targetRidArgs='/p:TargetRid=${{ parameters.platform.targetRID }}'
     fi
 
-    runtimeOsArgs=
-    if [ '${{ parameters.platform.runtimeOS }}' != '' ]; then
-      runtimeOsArgs='/p:RuntimeOS=${{ parameters.platform.runtimeOS }}'
-    fi
-
-    baseOsArgs=
-    if [ '${{ parameters.platform.baseOS }}' != '' ]; then
-      baseOsArgs='/p:BaseOS=${{ parameters.platform.baseOS }}'
-    fi
-
-    publishArgs=
-    if [ '${{ parameters.platform.skipPublishValidation }}' != 'true' ]; then
-      publishArgs='--publish'
-    fi
-
-    assetManifestFileName=SourceBuild_RidSpecific.xml
-    if [ '${{ parameters.platform.name }}' != '' ]; then
-      assetManifestFileName=SourceBuild_${{ parameters.platform.name }}.xml
+    baseRidArgs=
+    if [ '${{ parameters.platform.baseRID }}' != '' ]; then
+      baseRidArgs='/p:BaseRid=${{ parameters.platform.baseRID }}'
     fi
 
     portableBuildArgs=
@@ -83,51 +50,22 @@ steps:
 
     ${{ coalesce(parameters.platform.buildScript, './build.sh') }} --ci \
       --configuration $buildConfig \
-      --restore --build --pack $publishArgs -bl \
-      $officialBuildArgs \
+      --restore --build --pack -bl \
+      --source-build \
+      ${{ parameters.platform.buildArguments }} \
       $internalRuntimeDownloadArgs \
-      $internalRestoreArgs \
       $targetRidArgs \
-      $runtimeOsArgs \
-      $baseOsArgs \
+      $baseRidArgs \
       $portableBuildArgs \
-      /p:DotNetBuildSourceOnly=true \
-      /p:DotNetBuildRepo=true \
-      /p:AssetManifestFileName=$assetManifestFileName
   displayName: Build
 
-# Upload build logs for diagnosis.
-- task: CopyFiles@2
-  displayName: Prepare BuildLogs staging directory
-  inputs:
-    SourceFolder: '$(Build.SourcesDirectory)'
-    Contents: |
-      **/*.log
-      **/*.binlog
-      artifacts/sb/prebuilt-report/**
-    TargetFolder: '$(Build.StagingDirectory)/BuildLogs'
-    CleanTargetFolder: true
-  continueOnError: true
-  condition: succeededOrFailed()
-
 - template: /eng/common/core-templates/steps/publish-pipeline-artifacts.yml
   parameters:
     is1ESPipeline: ${{ parameters.is1ESPipeline }}
     args:
       displayName: Publish BuildLogs
-      targetPath: '$(Build.StagingDirectory)/BuildLogs'
+      targetPath: artifacts/log/${{ coalesce(variables._BuildConfig, 'Release') }}
       artifactName: BuildLogs_SourceBuild_${{ parameters.platform.name }}_Attempt$(System.JobAttempt)
       continueOnError: true
       condition: succeededOrFailed()
       sbomEnabled: false  # we don't need SBOM for logs
-
-# Manually inject component detection so that we can ignore the source build upstream cache, which contains
-# a nupkg cache of input packages (a local feed).
-# This path must match the upstream cache path in property 'CurrentRepoSourceBuiltNupkgCacheDir'
-# in src\Microsoft.DotNet.Arcade.Sdk\tools\SourceBuild\SourceBuildArcade.targets
-- template: /eng/common/core-templates/steps/component-governance.yml
-  parameters:
-    displayName: Component Detection (Exclude upstream cache)
-    is1ESPipeline: ${{ parameters.is1ESPipeline }}
-    componentGovernanceIgnoreDirectories: '$(Build.SourcesDirectory)/artifacts/sb/src/artifacts/obj/source-built-upstream-cache'
-    disableComponentGovernance: ${{ eq(variables['System.TeamProject'], 'public') }}
diff --git a/eng/common/core-templates/steps/source-index-stage1-publish.yml b/eng/common/core-templates/steps/source-index-stage1-publish.yml
index 473a22c471..99c2326fc1 100644
--- a/eng/common/core-templates/steps/source-index-stage1-publish.yml
+++ b/eng/common/core-templates/steps/source-index-stage1-publish.yml
@@ -1,6 +1,6 @@
 parameters:
-  sourceIndexUploadPackageVersion: 2.0.0-20240522.1
-  sourceIndexProcessBinlogPackageVersion: 1.0.1-20240522.1
+  sourceIndexUploadPackageVersion: 2.0.0-20250425.2
+  sourceIndexProcessBinlogPackageVersion: 1.0.1-20250425.2
   sourceIndexPackageSource: https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json
   binlogPath: artifacts/log/Debug/Build.binlog
 
diff --git a/eng/common/cross/tizen-fetch.sh b/eng/common/cross/tizen-fetch.sh
index 28936ceef3..37c3a61f1d 100644
--- a/eng/common/cross/tizen-fetch.sh
+++ b/eng/common/cross/tizen-fetch.sh
@@ -156,13 +156,8 @@ fetch_tizen_pkgs()
     done
 }
 
-if [ "$TIZEN_ARCH" == "riscv64" ]; then
-    BASE="Tizen-Base-RISCV"
-    UNIFIED="Tizen-Unified-RISCV"
-else
-    BASE="Tizen-Base"
-    UNIFIED="Tizen-Unified"
-fi
+BASE="Tizen-Base"
+UNIFIED="Tizen-Unified"
 
 Inform "Initialize ${TIZEN_ARCH} base"
 fetch_tizen_pkgs_init standard $BASE
diff --git a/eng/common/darc-init.sh b/eng/common/darc-init.sh
index 36dbd45e1c..e889f439b8 100755
--- a/eng/common/darc-init.sh
+++ b/eng/common/darc-init.sh
@@ -68,7 +68,7 @@ function InstallDarcCli {
     fi
   fi
 
-  local arcadeServicesSource="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json"
+  local arcadeServicesSource="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json"
 
   echo "Installing Darc CLI version $darcVersion..."
   echo "You may need to restart your command shell if this is the first dotnet tool you have installed."
diff --git a/eng/common/post-build/publish-using-darc.ps1 b/eng/common/post-build/publish-using-darc.ps1
index a261517ef9..1eda208a3b 100644
--- a/eng/common/post-build/publish-using-darc.ps1
+++ b/eng/common/post-build/publish-using-darc.ps1
@@ -6,7 +6,8 @@ param(
   [Parameter(Mandatory=$true)][string] $WaitPublishingFinish,
   [Parameter(Mandatory=$false)][string] $ArtifactsPublishingAdditionalParameters,
   [Parameter(Mandatory=$false)][string] $SymbolPublishingAdditionalParameters,
-  [Parameter(Mandatory=$false)][string] $RequireDefaultChannels
+  [Parameter(Mandatory=$false)][string] $RequireDefaultChannels,
+  [Parameter(Mandatory=$false)][string] $SkipAssetsPublishing
 )
 
 try {
@@ -39,6 +40,10 @@ try {
     $optionalParams.Add("--default-channels-required") | Out-Null
   }
 
+  if ("true" -eq $SkipAssetsPublishing) {
+    $optionalParams.Add("--skip-assets-publishing") | Out-Null
+  }
+
   & $darc add-build-to-channel `
     --id $buildId `
     --publishing-infra-version $PublishingInfraVersion `
diff --git a/eng/common/sdk-task.ps1 b/eng/common/sdk-task.ps1
index ab2b13f63f..a9d2a2d269 100644
--- a/eng/common/sdk-task.ps1
+++ b/eng/common/sdk-task.ps1
@@ -6,12 +6,13 @@ Param(
   [string] $msbuildEngine = $null,
   [switch] $restore,
   [switch] $prepareMachine,
+  [switch][Alias('nobl')]$excludeCIBinaryLog,
   [switch] $help,
   [Parameter(ValueFromRemainingArguments=$true)][String[]]$properties
 )
 
 $ci = $true
-$binaryLog = $true
+$binaryLog = if ($excludeCIBinaryLog) { $false } else { $true }
 $warnAsError = $true
 
 . $PSScriptRoot\tools.ps1
@@ -27,6 +28,7 @@ function Print-Usage() {
   Write-Host "Advanced settings:"
   Write-Host "  -prepareMachine         Prepare machine for CI run"
   Write-Host "  -msbuildEngine <value>  Msbuild engine to use to run build ('dotnet', 'vs', or unspecified)."
+  Write-Host "  -excludeCIBinaryLog     When running on CI, allow no binary log (short: -nobl)"
   Write-Host ""
   Write-Host "Command line arguments not listed above are passed thru to msbuild."
 }
@@ -34,10 +36,11 @@ function Print-Usage() {
 function Build([string]$target) {
   $logSuffix = if ($target -eq 'Execute') { '' } else { ".$target" }
   $log = Join-Path $LogDir "$task$logSuffix.binlog"
+  $binaryLogArg = if ($binaryLog) { "/bl:$log" } else { "" }
   $outputPath = Join-Path $ToolsetDir "$task\"
 
   MSBuild $taskProject `
-    /bl:$log `
+    $binaryLogArg `
     /t:$target `
     /p:Configuration=$configuration `
     /p:RepoRoot=$RepoRoot `
diff --git a/eng/common/sdk-task.sh b/eng/common/sdk-task.sh
index b9b9e58db9..2f83adc026 100644
--- a/eng/common/sdk-task.sh
+++ b/eng/common/sdk-task.sh
@@ -7,6 +7,10 @@ show_usage() {
     echo "  --verbosity <value>      Msbuild verbosity: q[uiet], m[inimal], n[ormal], d[etailed], and diag[nostic]"
     echo "  --help                   Print help and exit"
     echo ""
+
+    echo "Advanced settings:"
+    echo "  --excludeCIBinarylog     Don't output binary log (short: -nobl)"
+    echo ""
     echo "Command line arguments not listed above are passed thru to msbuild."
 }
 
@@ -27,10 +31,12 @@ Build() {
     local log_suffix=""
     [[ "$target" != "Execute" ]] && log_suffix=".$target"
     local log="$log_dir/$task$log_suffix.binlog"
+    local binaryLogArg=""
+    [[ $binary_log == true ]] && binaryLogArg="/bl:$log"
     local output_path="$toolset_dir/$task/"
 
     MSBuild "$taskProject" \
-        /bl:"$log" \
+        $binaryLogArg \
         /t:"$target" \
         /p:Configuration="$configuration" \
         /p:RepoRoot="$repo_root" \
@@ -39,8 +45,10 @@ Build() {
         $properties
 }
 
+binary_log=true
 configuration="Debug"
 verbosity="minimal"
+exclude_ci_binary_log=false
 restore=false
 help=false
 properties=''
@@ -60,6 +68,11 @@ while (($# > 0)); do
       verbosity=$2
       shift 2
       ;;
+    --excludecibinarylog|--nobl)
+      binary_log=false
+      exclude_ci_binary_log=true
+      shift 1
+      ;;
     --help)
       help=true
       shift 1
@@ -72,7 +85,6 @@ while (($# > 0)); do
 done
 
 ci=true
-binaryLog=true
 warnAsError=true
 
 if $help; then
diff --git a/eng/common/sdl/packages.config b/eng/common/sdl/packages.config
index 4585cfd6bb..e5f543ea68 100644
--- a/eng/common/sdl/packages.config
+++ b/eng/common/sdl/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.Guardian.Cli" version="0.109.0"/>
+  <package id="Microsoft.Guardian.Cli" version="0.199.0"/>
 </packages>
diff --git a/eng/common/templates/steps/vmr-sync.yml b/eng/common/templates/steps/vmr-sync.yml
new file mode 100644
index 0000000000..599afb6186
--- /dev/null
+++ b/eng/common/templates/steps/vmr-sync.yml
@@ -0,0 +1,207 @@
+### These steps synchronize new code from product repositories into the VMR (https://github.com/dotnet/dotnet).
+### They initialize the darc CLI and pull the new updates.
+### Changes are applied locally onto the already cloned VMR (located in $vmrPath).
+
+parameters:
+- name: targetRef
+  displayName: Target revision in dotnet/<repo> to synchronize
+  type: string
+  default: $(Build.SourceVersion)
+
+- name: vmrPath
+  displayName: Path where the dotnet/dotnet is checked out to
+  type: string
+  default: $(Agent.BuildDirectory)/vmr
+
+- name: additionalSyncs
+  displayName: Optional list of package names whose repo's source will also be synchronized in the local VMR, e.g. NuGet.Protocol
+  type: object
+  default: []
+
+steps:
+- checkout: vmr
+  displayName: Clone dotnet/dotnet
+  path: vmr
+  clean: true
+
+- checkout: self
+  displayName: Clone $(Build.Repository.Name)
+  path: repo
+  fetchDepth: 0
+
+# This step is needed so that when we get a detached HEAD / shallow clone,
+# we still pull the commit into the temporary repo clone to use it during the sync.
+# Also unshallow the clone so that forwardflow command would work.
+- script: |
+    git branch repo-head
+    git rev-parse HEAD
+  displayName: Label PR commit
+  workingDirectory: $(Agent.BuildDirectory)/repo
+
+- script: |
+    vmr_sha=$(grep -oP '(?<=Sha=")[^"]*' $(Agent.BuildDirectory)/repo/eng/Version.Details.xml)
+    echo "##vso[task.setvariable variable=vmr_sha]$vmr_sha"
+  displayName: Obtain the vmr sha from Version.Details.xml (Unix)
+  condition: ne(variables['Agent.OS'], 'Windows_NT')
+  workingDirectory: $(Agent.BuildDirectory)/repo
+
+- powershell: |
+    [xml]$xml = Get-Content -Path $(Agent.BuildDirectory)/repo/eng/Version.Details.xml
+    $vmr_sha = $xml.SelectSingleNode("//Source").Sha
+    Write-Output "##vso[task.setvariable variable=vmr_sha]$vmr_sha"
+  displayName: Obtain the vmr sha from Version.Details.xml (Windows)
+  condition: eq(variables['Agent.OS'], 'Windows_NT')
+  workingDirectory: $(Agent.BuildDirectory)/repo
+
+- script: |
+    git fetch --all
+    git checkout $(vmr_sha)
+  displayName: Checkout VMR at correct sha for repo flow
+  workingDirectory: ${{ parameters.vmrPath }}
+
+- script: |
+    git config --global user.name "dotnet-maestro[bot]"
+    git config --global user.email "dotnet-maestro[bot]@users.noreply.github.com"
+  displayName: Set git author to dotnet-maestro[bot]
+  workingDirectory: ${{ parameters.vmrPath }}
+
+- script: |
+    ./eng/common/vmr-sync.sh                         \
+      --vmr ${{ parameters.vmrPath }}         \
+      --tmp $(Agent.TempDirectory)            \
+      --azdev-pat '$(dn-bot-all-orgs-code-r)' \
+      --ci                                    \
+      --debug
+
+    if [ "$?" -ne 0 ]; then
+      echo "##vso[task.logissue type=error]Failed to synchronize the VMR"
+      exit 1
+    fi
+  displayName: Sync repo into VMR (Unix)
+  condition: ne(variables['Agent.OS'], 'Windows_NT')
+  workingDirectory: $(Agent.BuildDirectory)/repo
+
+- script: |
+    git config --global diff.astextplain.textconv echo
+    git config --system core.longpaths true
+  displayName: Configure Windows git (longpaths, astextplain)
+  condition: eq(variables['Agent.OS'], 'Windows_NT')
+
+- powershell: |
+    ./eng/common/vmr-sync.ps1                      `
+      -vmr ${{ parameters.vmrPath }}        `
+      -tmp $(Agent.TempDirectory)           `
+      -azdevPat '$(dn-bot-all-orgs-code-r)' `
+      -ci                                   `
+      -debugOutput
+
+    if ($LASTEXITCODE -ne 0) {
+      echo "##vso[task.logissue type=error]Failed to synchronize the VMR"
+      exit 1
+    }
+  displayName: Sync repo into VMR (Windows)
+  condition: eq(variables['Agent.OS'], 'Windows_NT')
+  workingDirectory: $(Agent.BuildDirectory)/repo
+
+- ${{ if eq(variables['Build.Reason'], 'PullRequest') }}:
+  - task: CopyFiles@2
+    displayName: Collect failed patches
+    condition: failed()
+    inputs:
+      SourceFolder: '$(Agent.TempDirectory)'
+      Contents: '*.patch'
+      TargetFolder: '$(Build.ArtifactStagingDirectory)/FailedPatches'
+
+  - publish: '$(Build.ArtifactStagingDirectory)/FailedPatches'
+    artifact: $(System.JobDisplayName)_FailedPatches
+    displayName: Upload failed patches
+    condition: failed()
+
+- ${{ each assetName in parameters.additionalSyncs }}:
+  # The vmr-sync script ends up staging files in the local VMR so we have to commit those
+  - script:
+      git commit --allow-empty -am "Forward-flow $(Build.Repository.Name)"
+    displayName: Commit local VMR changes
+    workingDirectory: ${{ parameters.vmrPath }}
+
+  - script: |
+      set -ex
+
+      echo "Searching for details of asset ${{ assetName }}..."
+
+      # Use darc to get dependencies information
+      dependencies=$(./.dotnet/dotnet darc get-dependencies --name '${{ assetName }}' --ci)
+
+      # Extract repository URL and commit hash
+      repository=$(echo "$dependencies" | grep 'Repo:' | sed 's/Repo:[[:space:]]*//' | head -1)
+
+      if [ -z "$repository" ]; then
+        echo "##vso[task.logissue type=error]Asset ${{ assetName }} not found in the dependency list"
+        exit 1
+      fi
+
+      commit=$(echo "$dependencies" | grep 'Commit:' | sed 's/Commit:[[:space:]]*//' | head -1)
+
+      echo "Updating the VMR from $repository / $commit..."
+      cd ..
+      git clone $repository ${{ assetName }}
+      cd ${{ assetName }}
+      git checkout $commit
+      git branch "sync/$commit"
+
+      ./eng/common/vmr-sync.sh                         \
+        --vmr ${{ parameters.vmrPath }}         \
+        --tmp $(Agent.TempDirectory)            \
+        --azdev-pat '$(dn-bot-all-orgs-code-r)' \
+        --ci                                    \
+        --debug
+
+      if [ "$?" -ne 0 ]; then
+        echo "##vso[task.logissue type=error]Failed to synchronize the VMR"
+        exit 1
+      fi
+    displayName: Sync ${{ assetName }} into (Unix)
+    condition: ne(variables['Agent.OS'], 'Windows_NT')
+    workingDirectory: $(Agent.BuildDirectory)/repo
+
+  - powershell: |
+      $ErrorActionPreference = 'Stop'
+
+      Write-Host "Searching for details of asset ${{ assetName }}..."
+
+      $dependencies = .\.dotnet\dotnet darc get-dependencies --name '${{ assetName }}' --ci
+
+      $repository = $dependencies | Select-String -Pattern 'Repo:\s+([^\s]+)' | Select-Object -First 1
+      $repository -match 'Repo:\s+([^\s]+)' | Out-Null
+      $repository = $matches[1]
+
+      if ($repository -eq $null) {
+          Write-Error "Asset ${{ assetName }} not found in the dependency list"
+          exit 1
+      }
+
+      $commit = $dependencies | Select-String -Pattern 'Commit:\s+([^\s]+)' | Select-Object -First 1
+      $commit -match 'Commit:\s+([^\s]+)' | Out-Null
+      $commit = $matches[1]
+
+      Write-Host "Updating the VMR from $repository / $commit..."
+      cd ..
+      git clone $repository ${{ assetName }}
+      cd ${{ assetName }}
+      git checkout $commit
+      git branch "sync/$commit"
+
+      .\eng\common\vmr-sync.ps1 `
+        -vmr ${{ parameters.vmrPath }}             `
+        -tmp $(Agent.TempDirectory)                `
+        -azdevPat '$(dn-bot-all-orgs-code-r)'      `
+        -ci                                        `
+        -debugOutput
+
+      if ($LASTEXITCODE -ne 0) {
+        echo "##vso[task.logissue type=error]Failed to synchronize the VMR"
+        exit 1
+      }
+    displayName: Sync ${{ assetName }} into (Windows)
+    condition: ne(variables['Agent.OS'], 'Windows_NT')
+    workingDirectory: $(Agent.BuildDirectory)/repo
diff --git a/eng/common/templates/vmr-build-pr.yml b/eng/common/templates/vmr-build-pr.yml
new file mode 100644
index 0000000000..670cf32c3b
--- /dev/null
+++ b/eng/common/templates/vmr-build-pr.yml
@@ -0,0 +1,33 @@
+trigger: none
+pr:
+  branches:
+    include:
+    - main
+    - release/*
+  paths:
+    exclude:
+    - documentation/*
+    - README.md
+    - CODEOWNERS
+
+variables:
+- template: /eng/common/templates/variables/pool-providers.yml@self
+
+- name: skipComponentGovernanceDetection  # we run CG on internal builds only
+  value: true
+
+- name: Codeql.Enabled  # we run CodeQL on internal builds only
+  value: false
+
+resources:
+  repositories:
+  - repository: vmr
+    type: github
+    name: dotnet/dotnet
+    endpoint: dotnet
+
+stages:
+- template: /eng/pipelines/templates/stages/vmr-build.yml@vmr
+  parameters:
+    isBuiltFromVmr: false
+    scope: lite
diff --git a/eng/common/tools.ps1 b/eng/common/tools.ps1
index 7373e53054..c9e39595b5 100644
--- a/eng/common/tools.ps1
+++ b/eng/common/tools.ps1
@@ -65,10 +65,8 @@ $ErrorActionPreference = 'Stop'
 # Base-64 encoded SAS token that has permission to storage container described by $runtimeSourceFeed
 [string]$runtimeSourceFeedKey = if (Test-Path variable:runtimeSourceFeedKey) { $runtimeSourceFeedKey } else { $null }
 
-# True if the build is a product build
-[bool]$productBuild = if (Test-Path variable:productBuild) { $productBuild } else { $false }
-
-[String[]]$properties = if (Test-Path variable:properties) { $properties } else { @() }
+# True when the build is running within the VMR.
+[bool]$fromVMR = if (Test-Path variable:fromVMR) { $fromVMR } else { $false }
 
 function Create-Directory ([string[]] $path) {
     New-Item -Path $path -Force -ItemType 'Directory' | Out-Null
@@ -646,7 +644,6 @@ function GetNuGetPackageCachePath() {
       $env:NUGET_PACKAGES = Join-Path $env:UserProfile '.nuget\packages\'
     } else {
       $env:NUGET_PACKAGES = Join-Path $RepoRoot '.packages\'
-      $env:RESTORENOHTTPCACHE = $true
     }
   }
 
@@ -852,8 +849,8 @@ function MSBuild-Core() {
     }
 
     # When running on Azure Pipelines, override the returned exit code to avoid double logging.
-    # Skip this when the build is a child of the VMR orchestrator build.
-    if ($ci -and $env:SYSTEM_TEAMPROJECT -ne $null -and !$productBuild -and -not($properties -like "*DotNetBuildRepo=true*")) {
+    # Skip this when the build is a child of the VMR build.
+    if ($ci -and $env:SYSTEM_TEAMPROJECT -ne $null -and !$fromVMR) {
       Write-PipelineSetResult -Result "Failed" -Message "msbuild execution failed."
       # Exiting with an exit code causes the azure pipelines task to log yet another "noise" error
       # The above Write-PipelineSetResult will cause the task to be marked as failure without adding yet another error
diff --git a/eng/common/tools.sh b/eng/common/tools.sh
index d51f300c77..a7e8493151 100755
--- a/eng/common/tools.sh
+++ b/eng/common/tools.sh
@@ -5,6 +5,9 @@
 # CI mode - set to true on CI server for PR validation build or official build.
 ci=${ci:-false}
 
+# Build mode
+source_build=${source_build:-false}
+
 # Set to true to use the pipelines logger which will enable Azure logging output.
 # https://github.com/Microsoft/azure-pipelines-tasks/blob/master/docs/authoring/commands.md
 # This flag is meant as a temporary opt-opt for the feature while validate it across
@@ -58,7 +61,8 @@ use_installed_dotnet_cli=${use_installed_dotnet_cli:-true}
 dotnetInstallScriptVersion=${dotnetInstallScriptVersion:-'v1'}
 
 # True to use global NuGet cache instead of restoring packages to repository-local directory.
-if [[ "$ci" == true ]]; then
+# Keep in sync with NuGetPackageroot in Arcade SDK's RepositoryLayout.props.
+if [[ "$ci" == true || "$source_build" == true ]]; then
   use_global_nuget_cache=${use_global_nuget_cache:-false}
 else
   use_global_nuget_cache=${use_global_nuget_cache:-true}
@@ -68,8 +72,8 @@ fi
 runtime_source_feed=${runtime_source_feed:-''}
 runtime_source_feed_key=${runtime_source_feed_key:-''}
 
-# True if the build is a product build
-product_build=${product_build:-false}
+# True when the build is running within the VMR.
+from_vmr=${from_vmr:-false}
 
 # Resolve any symlinks in the given path.
 function ResolvePath {
@@ -341,14 +345,12 @@ function InitializeBuildTool {
   _InitializeBuildToolCommand="msbuild"
 }
 
-# Set RestoreNoHttpCache as a workaround for https://github.com/NuGet/Home/issues/3116
 function GetNuGetPackageCachePath {
   if [[ -z ${NUGET_PACKAGES:-} ]]; then
     if [[ "$use_global_nuget_cache" == true ]]; then
       export NUGET_PACKAGES="$HOME/.nuget/packages/"
     else
       export NUGET_PACKAGES="$repo_root/.packages/"
-      export RESTORENOHTTPCACHE=true
     fi
   fi
 
@@ -502,8 +504,8 @@ function MSBuild-Core {
       echo "Build failed with exit code $exit_code. Check errors above."
 
       # When running on Azure Pipelines, override the returned exit code to avoid double logging.
-      # Skip this when the build is a child of the VMR orchestrator build.
-      if [[ "$ci" == true && -n ${SYSTEM_TEAMPROJECT:-} && "$product_build" != true && "$properties" != *"DotNetBuildRepo=true"* ]]; then
+      # Skip this when the build is a child of the VMR build.
+      if [[ "$ci" == true && -n ${SYSTEM_TEAMPROJECT:-} && "$from_vmr" != true ]]; then
         Write-PipelineSetResult -result "Failed" -message "msbuild execution failed."
         # Exiting with an exit code causes the azure pipelines task to log yet another "noise" error
         # The above Write-PipelineSetResult will cause the task to be marked as failure without adding yet another error
@@ -526,6 +528,7 @@ function GetDarc {
     fi
 
     "$eng_root/common/darc-init.sh" --toolpath "$darc_path" $version
+    darc_tool="$darc_path/darc"
 }
 
 # Returns a full path to an Arcade SDK task project file.
diff --git a/eng/common/vmr-sync.ps1 b/eng/common/vmr-sync.ps1
new file mode 100644
index 0000000000..97302f3205
--- /dev/null
+++ b/eng/common/vmr-sync.ps1
@@ -0,0 +1,138 @@
+<#
+.SYNOPSIS
+
+This script is used for synchronizing the current repository into a local VMR.
+It pulls the current repository's code into the specified VMR directory for local testing or
+Source-Build validation.
+
+.DESCRIPTION
+
+The tooling used for synchronization will clone the VMR repository into a temporary folder if
+it does not already exist. These clones can be reused in future synchronizations, so it is
+recommended to dedicate a folder for this to speed up re-runs.
+
+.EXAMPLE
+  Synchronize current repository into a local VMR:
+    ./vmr-sync.ps1 -vmrDir "$HOME/repos/dotnet" -tmpDir "$HOME/repos/tmp"
+
+.PARAMETER tmpDir
+Required. Path to the temporary folder where repositories will be cloned
+
+.PARAMETER vmrBranch
+Optional. Branch of the 'dotnet/dotnet' repo to synchronize. The VMR will be checked out to this branch
+
+.PARAMETER azdevPat
+Optional. Azure DevOps PAT to use for cloning private repositories.
+
+.PARAMETER vmrDir
+Optional. Path to the dotnet/dotnet repository. When null, gets cloned to the temporary folder
+
+.PARAMETER debugOutput
+Optional. Enables debug logging in the darc vmr command.
+
+.PARAMETER ci
+Optional. Denotes that the script is running in a CI environment.
+#>
+param (
+  [Parameter(Mandatory=$true, HelpMessage="Path to the temporary folder where repositories will be cloned")]
+  [string][Alias('t', 'tmp')]$tmpDir,
+  [string][Alias('b', 'branch')]$vmrBranch,
+  [string]$remote,
+  [string]$azdevPat,
+  [string][Alias('v', 'vmr')]$vmrDir,
+  [switch]$ci,
+  [switch]$debugOutput
+)
+
+function Fail {
+  Write-Host "> $($args[0])" -ForegroundColor 'Red'
+}
+
+function Highlight {
+  Write-Host "> $($args[0])" -ForegroundColor 'Cyan'
+}
+
+$verbosity = 'verbose'
+if ($debugOutput) {
+  $verbosity = 'debug'
+}
+# Validation
+
+if (-not $tmpDir) {
+  Fail "Missing -tmpDir argument. Please specify the path to the temporary folder where the repositories will be cloned"
+  exit 1
+}
+
+# Sanitize the input
+
+if (-not $vmrDir) {
+  $vmrDir = Join-Path $tmpDir 'dotnet'
+}
+
+if (-not (Test-Path -Path $tmpDir -PathType Container)) {
+  New-Item -ItemType Directory -Path $tmpDir | Out-Null
+}
+
+# Prepare the VMR
+
+if (-not (Test-Path -Path $vmrDir -PathType Container)) {
+  Highlight "Cloning 'dotnet/dotnet' into $vmrDir.."
+  git clone https://github.com/dotnet/dotnet $vmrDir
+
+  if ($vmrBranch) {
+    git -C $vmrDir switch -c $vmrBranch
+  }
+}
+else {
+  if ((git -C $vmrDir diff --quiet) -eq $false) {
+    Fail "There are changes in the working tree of $vmrDir. Please commit or stash your changes"
+    exit 1
+  }
+
+  if ($vmrBranch) {
+    Highlight "Preparing $vmrDir"
+    git -C $vmrDir checkout $vmrBranch
+    git -C $vmrDir pull
+  }
+}
+
+Set-StrictMode -Version Latest
+
+# Prepare darc
+
+Highlight 'Installing .NET, preparing the tooling..'
+. .\eng\common\tools.ps1
+$dotnetRoot = InitializeDotNetCli -install:$true
+$darc = Get-Darc
+$dotnet = "$dotnetRoot\dotnet.exe"
+
+Highlight "Starting the synchronization of VMR.."
+
+# Synchronize the VMR
+$darcArgs = (
+  "vmr", "forwardflow",
+  "--tmp", $tmpDir,
+  "--$verbosity",
+  $vmrDir
+)
+
+if ($ci) {
+  $darcArgs += ("--ci")
+}
+
+if ($azdevPat) {
+  $darcArgs += ("--azdev-pat", $azdevPat)
+}
+
+& "$darc" $darcArgs
+
+if ($LASTEXITCODE -eq 0) {
+  Highlight "Synchronization succeeded"
+}
+else {
+  Fail "Synchronization of repo to VMR failed!"
+  Fail "'$vmrDir' is left in its last state (re-run of this script will reset it)."
+  Fail "Please inspect the logs which contain path to the failing patch file (use -debugOutput to get all the details)."
+  Fail "Once you make changes to the conflicting VMR patch, commit it locally and re-run this script."
+  exit 1
+}
diff --git a/eng/common/vmr-sync.sh b/eng/common/vmr-sync.sh
new file mode 100644
index 0000000000..44239e331c
--- /dev/null
+++ b/eng/common/vmr-sync.sh
@@ -0,0 +1,207 @@
+#!/bin/bash
+
+### This script is used for synchronizing the current repository into a local VMR.
+### It pulls the current repository's code into the specified VMR directory for local testing or
+### Source-Build validation.
+###
+### The tooling used for synchronization will clone the VMR repository into a temporary folder if
+### it does not already exist. These clones can be reused in future synchronizations, so it is
+### recommended to dedicate a folder for this to speed up re-runs.
+###
+### USAGE:
+###   Synchronize current repository into a local VMR:
+###     ./vmr-sync.sh --tmp "$HOME/repos/tmp" "$HOME/repos/dotnet"
+###
+### Options:
+###   -t, --tmp, --tmp-dir PATH
+###       Required. Path to the temporary folder where repositories will be cloned
+###
+###   -b, --branch, --vmr-branch BRANCH_NAME
+###       Optional. Branch of the 'dotnet/dotnet' repo to synchronize. The VMR will be checked out to this branch
+###
+###   --debug
+###       Optional. Turns on the most verbose logging for the VMR tooling
+###
+###   --remote name:URI
+###       Optional. Additional remote to use during the synchronization
+###       This can be used to synchronize to a commit from a fork of the repository
+###       Example: 'runtime:https://github.com/yourfork/runtime'
+###
+###   --azdev-pat
+###       Optional. Azure DevOps PAT to use for cloning private repositories.
+###
+###   -v, --vmr, --vmr-dir PATH
+###       Optional. Path to the dotnet/dotnet repository. When null, gets cloned to the temporary folder
+
+source="${BASH_SOURCE[0]}"
+
+# resolve $source until the file is no longer a symlink
+while [[ -h "$source" ]]; do
+  scriptroot="$( cd -P "$( dirname "$source" )" && pwd )"
+  source="$(readlink "$source")"
+  # if $source was a relative symlink, we need to resolve it relative to the path where the
+  # symlink file was located
+  [[ $source != /* ]] && source="$scriptroot/$source"
+done
+scriptroot="$( cd -P "$( dirname "$source" )" && pwd )"
+
+function print_help () {
+    sed -n '/^### /,/^$/p' "$source" | cut -b 5-
+}
+
+COLOR_RED=$(tput setaf 1 2>/dev/null || true)
+COLOR_CYAN=$(tput setaf 6 2>/dev/null || true)
+COLOR_CLEAR=$(tput sgr0 2>/dev/null || true)
+COLOR_RESET=uniquesearchablestring
+FAILURE_PREFIX='> '
+
+function fail () {
+  echo "${COLOR_RED}$FAILURE_PREFIX${1//${COLOR_RESET}/${COLOR_RED}}${COLOR_CLEAR}" >&2
+}
+
+function highlight () {
+  echo "${COLOR_CYAN}$FAILURE_PREFIX${1//${COLOR_RESET}/${COLOR_CYAN}}${COLOR_CLEAR}"
+}
+
+tmp_dir=''
+vmr_dir=''
+vmr_branch=''
+additional_remotes=''
+verbosity=verbose
+azdev_pat=''
+ci=false
+
+while [[ $# -gt 0 ]]; do
+  opt="$(echo "$1" | tr "[:upper:]" "[:lower:]")"
+  case "$opt" in
+    -t|--tmp|--tmp-dir)
+      tmp_dir=$2
+      shift
+      ;;
+    -v|--vmr|--vmr-dir)
+      vmr_dir=$2
+      shift
+      ;;
+    -b|--branch|--vmr-branch)
+      vmr_branch=$2
+      shift
+      ;;
+    --remote)
+      additional_remotes="$additional_remotes $2"
+      shift
+      ;;
+    --azdev-pat)
+      azdev_pat=$2
+      shift
+      ;;
+    --ci)
+      ci=true
+      ;;
+    -d|--debug)
+      verbosity=debug
+      ;;
+    -h|--help)
+      print_help
+      exit 0
+      ;;
+    *)
+      fail "Invalid argument: $1"
+      print_help
+      exit 1
+      ;;
+  esac
+
+  shift
+done
+
+# Validation
+
+if [[ -z "$tmp_dir" ]]; then
+  fail "Missing --tmp-dir argument. Please specify the path to the temporary folder where the repositories will be cloned"
+  exit 1
+fi
+
+# Sanitize the input
+
+if [[ -z "$vmr_dir" ]]; then
+  vmr_dir="$tmp_dir/dotnet"
+fi
+
+if [[ ! -d "$tmp_dir" ]]; then
+  mkdir -p "$tmp_dir"
+fi
+
+if [[ "$verbosity" == "debug" ]]; then
+  set -x
+fi
+
+# Prepare the VMR
+
+if [[ ! -d "$vmr_dir" ]]; then
+  highlight "Cloning 'dotnet/dotnet' into $vmr_dir.."
+  git clone https://github.com/dotnet/dotnet "$vmr_dir"
+
+  if [[ -n "$vmr_branch" ]]; then
+    git -C "$vmr_dir" switch -c "$vmr_branch"
+  fi
+else
+  if ! git -C "$vmr_dir" diff --quiet; then
+    fail "There are changes in the working tree of $vmr_dir. Please commit or stash your changes"
+    exit 1
+  fi
+
+  if [[ -n "$vmr_branch" ]]; then
+    highlight "Preparing $vmr_dir"
+    git -C "$vmr_dir" checkout "$vmr_branch"
+    git -C "$vmr_dir" pull
+  fi
+fi
+
+set -e
+
+# Prepare darc
+
+highlight 'Installing .NET, preparing the tooling..'
+source "./eng/common/tools.sh"
+InitializeDotNetCli true
+GetDarc
+dotnetDir=$( cd ./.dotnet/; pwd -P )
+dotnet=$dotnetDir/dotnet
+
+highlight "Starting the synchronization of VMR.."
+set +e
+
+if [[ -n "$additional_remotes" ]]; then
+  additional_remotes="--additional-remotes $additional_remotes"
+fi
+
+if [[ -n "$azdev_pat" ]]; then
+  azdev_pat="--azdev-pat $azdev_pat"
+fi
+
+ci_arg=''
+if [[ "$ci" == "true" ]]; then
+  ci_arg="--ci"
+fi
+
+# Synchronize the VMR
+
+export DOTNET_ROOT="$dotnetDir"
+
+"$darc_tool" vmr forwardflow \
+  --tmp "$tmp_dir"             \
+  $azdev_pat                   \
+  --$verbosity                 \
+  $ci_arg                      \
+  $additional_remotes          \
+  "$vmr_dir"
+
+if [[ $? == 0 ]]; then
+  highlight "Synchronization succeeded"
+else
+  fail "Synchronization of repo to VMR failed!"
+  fail "'$vmr_dir' is left in its last state (re-run of this script will reset it)."
+  fail "Please inspect the logs which contain path to the failing patch file (use --debug to get all the details)."
+  fail "Once you make changes to the conflicting VMR patch, commit it locally and re-run this script."
+  exit 1
+fi
diff --git a/global.json b/global.json
index 3916996dc9..e98031f154 100644
--- a/global.json
+++ b/global.json
@@ -1,9 +1,9 @@
 {
   "sdk": {
-    "version": "10.0.100-preview.3.25167.3"
+    "version": "10.0.100-preview.5.25265.106"
   },
   "tools": {
-    "dotnet": "10.0.100-preview.3.25167.3",
+    "dotnet": "10.0.100-preview.5.25265.106",
     "runtimes": {
       "dotnet": [
         "6.0.4",
@@ -19,6 +19,6 @@
   },
   "msbuild-sdks": {
     "MSBuild.SDK.SystemWeb": "4.0.88",
-    "Microsoft.DotNet.Arcade.Sdk": "10.0.0-beta.25178.2"
+    "Microsoft.DotNet.Arcade.Sdk": "10.0.0-beta.25279.3"
   }
 }