diff --git a/eng/Version.Details.props b/eng/Version.Details.props
index e6b8f9c5b6..b74903f442 100644
--- a/eng/Version.Details.props
+++ b/eng/Version.Details.props
@@ -6,7 +6,7 @@ This file should be imported by eng/Versions.props
 <Project>
   <PropertyGroup>
     <!-- dotnet-dotnet dependencies -->
-    <MicrosoftDotNetArcadeSdkPackageVersion>11.0.0-beta.26215.121</MicrosoftDotNetArcadeSdkPackageVersion>
+    <MicrosoftDotNetArcadeSdkPackageVersion>11.0.0-beta.26226.111</MicrosoftDotNetArcadeSdkPackageVersion>
   </PropertyGroup>
   <!--Property group for alternate package version names-->
   <PropertyGroup>
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 94a1178408..377fbb5260 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
-  <Source Uri="https://github.com/dotnet/dotnet" Mapping="symreader" Sha="ab01524bbb2ef1eea0ffaef161b3ef5686e8f256" BarId="310648" />
+  <Source Uri="https://github.com/dotnet/dotnet" Mapping="symreader" Sha="2e6efe3a93c7a685d76951a7bfd91c520dc7b333" BarId="311960" />
   <ProductDependencies>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="11.0.0-beta.26215.121">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="11.0.0-beta.26226.111">
       <Uri>https://github.com/dotnet/dotnet</Uri>
-      <Sha>ab01524bbb2ef1eea0ffaef161b3ef5686e8f256</Sha>
+      <Sha>2e6efe3a93c7a685d76951a7bfd91c520dc7b333</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index 65517b3570..447085d858 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -5,7 +5,7 @@
   <PropertyGroup>
     <VersionPrefix>3.0.0</VersionPrefix>
     <PreReleaseVersionLabel>preview</PreReleaseVersionLabel>
-    <PreReleaseVersionIteration>4</PreReleaseVersionIteration>
+    <PreReleaseVersionIteration>5</PreReleaseVersionIteration>
     <!-- Allowed values: '', 'prerelease', 'release'. Set to 'release' when stabilizing. -->
     <DotNetFinalVersionKind></DotNetFinalVersionKind>
 
diff --git a/eng/common/core-templates/post-build/post-build.yml b/eng/common/core-templates/post-build/post-build.yml
index fcf40d1d2e..8aa86e3049 100644
--- a/eng/common/core-templates/post-build/post-build.yml
+++ b/eng/common/core-templates/post-build/post-build.yml
@@ -225,7 +225,7 @@ stages:
         displayName: Validate
         inputs:
           filePath: eng\common\sdk-task.ps1
-          arguments: -task SigningValidation -restore
+          arguments: -task SigningValidation -restore -msbuildEngine dotnet
             /p:PackageBasePath='$(Build.ArtifactStagingDirectory)/PackageArtifacts'
             /p:SignCheckExclusionsFile='$(System.DefaultWorkingDirectory)/eng/SignCheckExclusionsFile.txt'
             ${{ parameters.signingValidationAdditionalParameters }}
diff --git a/eng/common/tools.ps1 b/eng/common/tools.ps1
index d1ca56d845..65adefc7f2 100644
--- a/eng/common/tools.ps1
+++ b/eng/common/tools.ps1
@@ -185,7 +185,11 @@ function InitializeDotNetCli([bool]$install, [bool]$createSdkLocationFile) {
   if ((-not $globalJsonHasRuntimes) -and (-not [string]::IsNullOrEmpty($env:DOTNET_INSTALL_DIR)) -and (Test-Path(Join-Path $env:DOTNET_INSTALL_DIR "sdk\$dotnetSdkVersion"))) {
     $dotnetRoot = $env:DOTNET_INSTALL_DIR
   } else {
-    $dotnetRoot = Join-Path $RepoRoot '.dotnet'
+    if (-not [string]::IsNullOrEmpty($env:DOTNET_GLOBAL_INSTALL_DIR)) {
+      $dotnetRoot = $env:DOTNET_GLOBAL_INSTALL_DIR
+    } else {
+      $dotnetRoot = Join-Path $RepoRoot '.dotnet'
+    }
 
     if (-not (Test-Path(Join-Path $dotnetRoot "sdk\$dotnetSdkVersion"))) {
       if ($install) {
@@ -677,9 +681,19 @@ function InitializeToolset() {
   }
 
   $downloadArgs = @("package", "download", "Microsoft.DotNet.Arcade.Sdk@$toolsetVersion", "--verbosity", "minimal", "--prerelease", "--output", "$nugetCache")
-  if ($env:NUGET_CONFIG) {
+  $nugetConfig = $env:NUGET_CONFIG
+  if (-not $nugetConfig) {
+    # Search for any variation of nuget.config in the RepoRoot
+    $configFile = Get-ChildItem -Path $RepoRoot -File | Where-Object { $_.Name -ieq "nuget.config" } | Select-Object -First 1
+
+    if ($configFile) {
+        $nugetConfig = $configFile.FullName
+    }
+  }
+
+  if ($nugetConfig) {
     $downloadArgs += "--configfile"
-    $downloadArgs += $env:NUGET_CONFIG
+    $downloadArgs += $nugetConfig
   }
   DotNet @downloadArgs
 
diff --git a/eng/common/tools.sh b/eng/common/tools.sh
index 22341be2cc..95c55ce9b4 100755
--- a/eng/common/tools.sh
+++ b/eng/common/tools.sh
@@ -148,7 +148,11 @@ function InitializeDotNetCli {
   if [[ $global_json_has_runtimes == false && -n "${DOTNET_INSTALL_DIR:-}" && -d "$DOTNET_INSTALL_DIR/sdk/$dotnet_sdk_version" ]]; then
     dotnet_root="$DOTNET_INSTALL_DIR"
   else
-    dotnet_root="${repo_root}.dotnet"
+    if [[ -n "${DOTNET_GLOBAL_INSTALL_DIR:-}" ]]; then
+      dotnet_root="$DOTNET_GLOBAL_INSTALL_DIR"
+    else
+      dotnet_root="${repo_root}.dotnet"
+    fi
 
     export DOTNET_INSTALL_DIR="$dotnet_root"
 
@@ -427,8 +431,19 @@ function InitializeToolset {
   fi
 
   local download_args=("package" "download" "Microsoft.DotNet.Arcade.Sdk@$toolset_version" "--verbosity" "minimal" "--prerelease" "--output" "$_GetNuGetPackageCachePath")
-  if [[ -n "${NUGET_CONFIG:-}" ]]; then
-    download_args+=("--configfile" "$NUGET_CONFIG")
+  local nuget_config="${NUGET_CONFIG:-}"
+  if [[ -z "$nuget_config" ]]; then
+    # Search for any variation of nuget.config in the RepoRoot
+    local found_config
+    found_config=$(find "$repo_root" -maxdepth 1 -type f -iname "nuget.config" -print -quit)
+
+    if [[ -n "$found_config" ]]; then
+      nuget_config="$found_config"
+    fi
+  fi
+
+  if [[ -n "$nuget_config" ]]; then
+    download_args+=("--configfile" "$nuget_config")
   fi
   DotNet "${download_args[@]}"
 
diff --git a/global.json b/global.json
index b99bb36565..cb136d564f 100644
--- a/global.json
+++ b/global.json
@@ -13,6 +13,6 @@
     "dotnet": "11.0.100-preview.4.26210.111"
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "11.0.0-beta.26215.121"
+    "Microsoft.DotNet.Arcade.Sdk": "11.0.0-beta.26226.111"
   }
 }