diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 67cf39b312e..8958fd69137 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -76,9 +76,9 @@
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="1.0.0-beta.19569.2">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="1.0.0-beta.19577.5">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>e34d933e18ba1cd393bbafcb6018e0f858d3e89e</Sha>
+      <Sha>99c6b59a8afff97fe891341b39abe985f1d3c565</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>
diff --git a/eng/common/SetupNugetSources.ps1 b/eng/common/SetupNugetSources.ps1
new file mode 100644
index 00000000000..2cb40c29474
--- /dev/null
+++ b/eng/common/SetupNugetSources.ps1
@@ -0,0 +1,127 @@
+# This file is a temporary workaround for internal builds to be able to restore from private AzDO feeds.
+# This file should be removed as part of this issue: https://github.com/dotnet/arcade/issues/4080
+#
+# What the script does is iterate over all package sources in the pointed NuGet.config and add a credential entry
+# under <packageSourceCredentials> for each Maestro managed private feed. Two additional credential 
+# entries are also added for the two private static internal feeds: dotnet3-internal and dotnet3-internal-transport.
+#
+# This script needs to be called in every job that will restore packages and which the base repo has
+# private AzDO feeds in the NuGet.config.
+#
+# See example YAML call for this script below. Note the use of the variable `$(dn-bot-dnceng-artifact-feeds-rw)`
+# from the AzureDevOps-Artifact-Feeds-Pats variable group.
+#
+#  - task: PowerShell@2
+#    displayName: Setup Private Feeds Credentials
+#    condition: eq(variables['Agent.OS'], 'Windows_NT')
+#    inputs:
+#      filePath: $(Build.SourcesDirectory)/eng/common/SetupNugetSources.ps1
+#      arguments: -ConfigFile ${Env:BUILD_SOURCESDIRECTORY}/NuGet.config -Password $Env:Token
+#    env:
+#      Token: $(dn-bot-dnceng-artifact-feeds-rw)
+
+[CmdletBinding()]
+param (
+    [Parameter(Mandatory = $true)][string]$ConfigFile,
+    [Parameter(Mandatory = $true)][string]$Password
+)
+
+$ErrorActionPreference = "Stop"
+Set-StrictMode -Version 2.0
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+
+. $PSScriptRoot\tools.ps1
+
+# Add source entry to PackageSources
+function AddPackageSource($sources, $SourceName, $SourceEndPoint, $creds, $Username, $Password) {
+    $packageSource = $sources.SelectSingleNode("add[@key='$SourceName']")
+    
+    if ($packageSource -eq $null)
+    {
+        $packageSource = $doc.CreateElement("add")
+        $packageSource.SetAttribute("key", $SourceName)
+        $packageSource.SetAttribute("value", $SourceEndPoint)
+        $sources.AppendChild($packageSource) | Out-Null
+    }
+    else {
+        Write-Host "Package source $SourceName already present."
+    }
+    
+    AddCredential -Creds $creds -Source $SourceName -Username $Username -Password $Password
+}
+
+# Add a credential node for the specified source
+function AddCredential($creds, $source, $username, $password) {
+    # Looks for credential configuration for the given SourceName. Create it if none is found.
+    $sourceElement = $creds.SelectSingleNode($Source)
+    if ($sourceElement -eq $null)
+    {
+        $sourceElement = $doc.CreateElement($Source)
+        $creds.AppendChild($sourceElement) | Out-Null
+    }
+
+    # Add the <Username> node to the credential if none is found.
+    $usernameElement = $sourceElement.SelectSingleNode("add[@key='Username']")
+    if ($usernameElement -eq $null)
+    {
+        $usernameElement = $doc.CreateElement("add")
+        $usernameElement.SetAttribute("key", "Username")
+        $sourceElement.AppendChild($usernameElement) | Out-Null
+    }
+    $usernameElement.SetAttribute("value", $Username)
+
+    # Add the <ClearTextPassword> to the credential if none is found.
+    # Add it as a clear text because there is no support for encrypted ones in non-windows .Net SDKs.
+    #   -> https://github.com/NuGet/Home/issues/5526
+    $passwordElement = $sourceElement.SelectSingleNode("add[@key='ClearTextPassword']")
+    if ($passwordElement -eq $null)
+    {
+        $passwordElement = $doc.CreateElement("add")
+        $passwordElement.SetAttribute("key", "ClearTextPassword")
+        $sourceElement.AppendChild($passwordElement) | Out-Null
+    }
+    $passwordElement.SetAttribute("value", $Password)
+}
+
+function InsertMaestroPrivateFeedCredentials($Sources, $Creds, $Password) {
+    $maestroPrivateSources = $Sources.SelectNodes("add[contains(@key,'darc-int')]")
+
+    Write-Host "Inserting credentials for $($maestroPrivateSources.Count) Maestro's private feeds."
+    
+    ForEach ($PackageSource in $maestroPrivateSources) {
+        Write-Host "`tInserting credential for Maestro's feed:" $PackageSource.Key
+        AddCredential -Creds $creds -Source $PackageSource.Key -Username $Username -Password $Password
+    }
+}
+
+if (!(Test-Path $ConfigFile -PathType Leaf)) {
+  Write-Host "Couldn't find the file NuGet config file: $ConfigFile"
+  ExitWithExitCode 1
+}
+
+# Load NuGet.config
+$doc = New-Object System.Xml.XmlDocument
+$filename = (Get-Item $ConfigFile).FullName
+$doc.Load($filename)
+
+# Get reference to <PackageSources> or create one if none exist already
+$sources = $doc.DocumentElement.SelectSingleNode("packageSources")
+if ($sources -eq $null) {
+    $sources = $doc.CreateElement("packageSources")
+    $doc.DocumentElement.AppendChild($sources) | Out-Null
+}
+
+# Looks for a <PackageSourceCredentials> node. Create it if none is found.
+$creds = $doc.DocumentElement.SelectSingleNode("packageSourceCredentials")
+if ($creds -eq $null) {
+    $creds = $doc.CreateElement("packageSourceCredentials")
+    $doc.DocumentElement.AppendChild($creds) | Out-Null
+}
+
+# Insert credential nodes for Maestro's private feeds
+InsertMaestroPrivateFeedCredentials -Sources $sources -Creds $creds -Password $Password
+
+AddPackageSource -Sources $sources -SourceName "dotnet3-internal" -SourceEndPoint "https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3-internal/nuget/v2" -Creds $creds -Username "dn-bot" -Password $Password
+AddPackageSource -Sources $sources -SourceName "dotnet3-internal-transport" -SourceEndPoint "https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3-internal-transport/nuget/v2" -Creds $creds -Username "dn-bot" -Password $Password
+
+$doc.Save($filename)
diff --git a/eng/common/SetupNugetSources.sh b/eng/common/SetupNugetSources.sh
new file mode 100644
index 00000000000..12645213171
--- /dev/null
+++ b/eng/common/SetupNugetSources.sh
@@ -0,0 +1,117 @@
+#!/usr/bin/env bash
+
+# This file is a temporary workaround for internal builds to be able to restore from private AzDO feeds.
+# This file should be removed as part of this issue: https://github.com/dotnet/arcade/issues/4080
+#
+# What the script does is iterate over all package sources in the pointed NuGet.config and add a credential entry
+# under <packageSourceCredentials> for each Maestro's managed private feed. Two additional credential 
+# entries are also added for the two private static internal feeds: dotnet3-internal and dotnet3-internal-transport.
+#
+# This script needs to be called in every job that will restore packages and which the base repo has
+# private AzDO feeds in the NuGet.config.
+#
+# See example YAML call for this script below. Note the use of the variable `$(dn-bot-dnceng-artifact-feeds-rw)`
+# from the AzureDevOps-Artifact-Feeds-Pats variable group.
+#
+#  - task: Bash@3
+#    displayName: Setup Private Feeds Credentials
+#    inputs:
+#      filePath: $(Build.SourcesDirectory)/eng/common/SetupNugetSources.sh
+#      arguments: $BUILD_SOURCESDIRECTORY/NuGet.config $Token
+#    condition: ne(variables['Agent.OS'], 'Windows_NT')
+#    env:
+#      Token: $(dn-bot-dnceng-artifact-feeds-rw)
+
+ConfigFile=$1
+CredToken=$2
+NL='\n'
+TB='    '
+
+source="${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 )"
+
+. "$scriptroot/tools.sh"
+
+if [ ! -f "$ConfigFile" ]; then
+    echo "Couldn't find the file NuGet config file: $ConfigFile"
+    ExitWithExitCode 1
+fi
+
+if [[ `uname -s` == "Darwin" ]]; then
+    NL=$'\\\n'
+    TB=''
+fi
+
+# Ensure there is a <packageSources>...</packageSources> section.
+grep -i "<packageSources>" $ConfigFile 
+if [ "$?" != "0" ]; then
+    echo "Adding <packageSources>...</packageSources> section."
+    ConfigNodeHeader="<configuration>"
+    PackageSourcesTemplate="${TB}<packageSources>${NL}${TB}</packageSources>"
+
+    sed -i.bak "s|$ConfigNodeHeader|$ConfigNodeHeader${NL}$PackageSourcesTemplate|" NuGet.config
+fi
+
+# Ensure there is a <packageSourceCredentials>...</packageSourceCredentials> section. 
+grep -i "<packageSourceCredentials>" $ConfigFile 
+if [ "$?" != "0" ]; then
+    echo "Adding <packageSourceCredentials>...</packageSourceCredentials> section."
+
+    PackageSourcesNodeFooter="</packageSources>"
+    PackageSourceCredentialsTemplate="${TB}<packageSourceCredentials>${NL}${TB}</packageSourceCredentials>"
+
+    sed -i.bak "s|$PackageSourcesNodeFooter|$PackageSourcesNodeFooter${NL}$PackageSourceCredentialsTemplate|" NuGet.config
+fi
+
+# Ensure dotnet3-internal and dotnet3-internal-transport is in the packageSources
+grep -i "<add key=\"dotnet3-internal\">" $ConfigFile 
+if [ "$?" != "0" ]; then
+    echo "Adding dotnet3-internal to the packageSources."
+
+    PackageSourcesNodeFooter="</packageSources>"
+    PackageSourceTemplate="${TB}<add key=\"dotnet3-internal\" value=\"https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3-internal/nuget/v2\" />"
+
+    sed -i.bak "s|$PackageSourcesNodeFooter|$PackageSourceTemplate${NL}$PackageSourcesNodeFooter|" NuGet.config
+fi
+
+# Ensure dotnet3-internal and dotnet3-internal-transport is in the packageSources
+grep -i "<add key=\"dotnet3-internal-transport\">" $ConfigFile 
+if [ "$?" != "0" ]; then
+    echo "Adding dotnet3-internal-transport to the packageSources."
+
+    PackageSourcesNodeFooter="</packageSources>"
+    PackageSourceTemplate="${TB}<add key=\"dotnet3-internal-transport\" value=\"https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3-internal-transport/nuget/v2\" />"
+
+    sed -i.bak "s|$PackageSourcesNodeFooter|$PackageSourceTemplate${NL}$PackageSourcesNodeFooter|" NuGet.config
+fi
+
+# I want things split line by line
+PrevIFS=$IFS
+IFS=$'\n'
+PackageSources=$(grep -oh '"darc-int-[^"]*"' $ConfigFile | tr -d '"')
+IFS=$PrevIFS
+
+PackageSources+=('dotnet3-internal')
+PackageSources+=('dotnet3-internal-transport')
+
+for FeedName in ${PackageSources[@]} ; do
+    # Check if there is no existing credential for this FeedName
+    grep -i "<$FeedName>" $ConfigFile 
+    if [ "$?" != "0" ]; then
+        echo "Adding credentials for $FeedName."
+
+        PackageSourceCredentialsNodeFooter="</packageSourceCredentials>"
+        NewCredential="${TB}${TB}<$FeedName>${NL}<add key=\"Username\" value=\"dn-bot\" />${NL}<add key=\"ClearTextPassword\" value=\"$CredToken\" />${NL}</$FeedName>"
+
+        sed -i.bak "s|$PackageSourceCredentialsNodeFooter|$NewCredential${NL}$PackageSourceCredentialsNodeFooter|" NuGet.config
+    fi
+done
diff --git a/eng/common/templates/post-build/common-variables.yml b/eng/common/templates/post-build/common-variables.yml
index 0a2c40c1035..216d043e4e3 100644
--- a/eng/common/templates/post-build/common-variables.yml
+++ b/eng/common/templates/post-build/common-variables.yml
@@ -13,19 +13,19 @@ variables:
   - name: NetCore_5_Dev_Channel_Id
     value: 131
 
-  # .NET Tools - Validation
-  - name: NetCore_Tools_Validation_Channel_Id
+  # .NET Eng - Validation
+  - name: Net_Eng_Validation_Channel_Id
     value: 9
 
-  # .NET Tools - Latest
-  - name: NetCore_Tools_Latest_Channel_Id
+  # .NET Eng - Latest
+  - name: Net_Eng_Latest_Channel_Id
     value: 2
 
-  # .NET 3 Tools - Validation
-  - name: NETCore_3_Tools_Validation_Channel_Id
+  # .NET 3 Eng - Validation
+  - name: NET_3_Eng_Validation_Channel_Id
     value: 390
 
-  # .NET 3 Tools - Latest
+  # .NET 3 Eng
   - name: NetCore_3_Tools_Channel_Id
     value: 344
 
diff --git a/eng/common/templates/post-build/post-build.yml b/eng/common/templates/post-build/post-build.yml
index ec80c65a923..9921743bcdb 100644
--- a/eng/common/templates/post-build/post-build.yml
+++ b/eng/common/templates/post-build/post-build.yml
@@ -126,8 +126,8 @@ stages:
     artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
     publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
     symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
-    stageName: 'NetCore_Tools_Latest_Publish'
-    channelName: '.NET Tools - Latest'
+    stageName: 'Net_Eng_Latest_Publish'
+    channelName: '.NET Eng - Latest'
     channelId: 2
     transportFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json'
     shippingFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json'
@@ -138,8 +138,8 @@ stages:
     artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
     publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
     symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
-    stageName: 'PVR_Publish'
-    channelName: '.NET Tools - Validation'
+    stageName: 'Net_Eng_Validation_Publish'
+    channelName: '.NET Eng - Validation'
     channelId: 9
     transportFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json'
     shippingFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json'
@@ -264,3 +264,75 @@ stages:
     transportFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json'
     shippingFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json'
     symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools-symbols/nuget/v3/index.json'
+
+- template: \eng\common\templates\post-build\channels\generic-public-channel.yml
+  parameters:
+    artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
+    publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
+    symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
+    stageName: 'NETCore_SDK_301xx_Publishing'
+    channelName: '.NET Core SDK 3.0.1xx'
+    channelId: 556
+    transportFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3-transport/nuget/v3/index.json'
+    shippingFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3/nuget/v3/index.json'
+    symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3-symbols/nuget/v3/index.json'
+
+- template: \eng\common\templates\post-build\channels\generic-internal-channel.yml
+  parameters:
+    artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
+    publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
+    symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
+    stageName: 'NETCore_SDK_301xx_Internal_Publishing'
+    channelName: '.NET Core SDK 3.0.1xx Internal'
+    channelId: 555
+    transportFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3-internal-transport/nuget/v3/index.json'
+    shippingFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3-internal/nuget/v3/index.json'
+    symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3-internal-symbols/nuget/v3/index.json'
+
+- template: \eng\common\templates\post-build\channels\generic-public-channel.yml
+  parameters:
+    artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
+    publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
+    symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
+    stageName: 'NETCore_SDK_311xx_Publishing'
+    channelName: '.NET Core SDK 3.1.1xx'
+    channelId: 560
+    transportFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3.1-transport/nuget/v3/index.json'
+    shippingFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3.1/nuget/v3/index.json'
+    symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3.1-symbols/nuget/v3/index.json'
+
+- template: \eng\common\templates\post-build\channels\generic-internal-channel.yml
+  parameters:
+    artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
+    publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
+    symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
+    stageName: 'NETCore_SDK_311xx_Internal_Publishing'
+    channelName: '.NET Core SDK 3.1.1xx Internal'
+    channelId: 559
+    transportFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal-transport/nuget/v3/index.json'
+    shippingFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal/nuget/v3/index.json'
+    symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal-symbols/nuget/v3/index.json'
+
+- template: \eng\common\templates\post-build\channels\generic-public-channel.yml
+  parameters:
+    artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
+    publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
+    symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
+    stageName: 'NETCore_SDK_312xx_Publishing'
+    channelName: '.NET Core SDK 3.1.2xx'
+    channelId: 558
+    transportFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3.1-transport/nuget/v3/index.json'
+    shippingFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3.1/nuget/v3/index.json'
+    symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3.1-symbols/nuget/v3/index.json'
+
+- template: \eng\common\templates\post-build\channels\generic-internal-channel.yml
+  parameters:
+    artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
+    publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
+    symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
+    stageName: 'NETCore_SDK_312xx_Internal_Publishing'
+    channelName: '.NET Core SDK 3.1.2xx Internal'
+    channelId: 557
+    transportFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal-transport/nuget/v3/index.json'
+    shippingFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal/nuget/v3/index.json'
+    symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal-symbols/nuget/v3/index.json'
\ No newline at end of file
diff --git a/global.json b/global.json
index fe6dec5836e..9462add2c27 100644
--- a/global.json
+++ b/global.json
@@ -8,6 +8,6 @@
     }
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "1.0.0-beta.19569.2"
+    "Microsoft.DotNet.Arcade.Sdk": "1.0.0-beta.19577.5"
   }
 }