dotnet · dotnet-maestro · May 13, 2026 · May 13, 2026 · May 14, 2026 · May 14, 2026
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
@@ -1,39 +1,39 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.NET.ILLink.Tasks" Version="11.0.0-preview.5.26261.101">
+    <Dependency Name="Microsoft.NET.ILLink.Tasks" Version="11.0.0-preview.6.26319.105">
       <Uri>https://github.com/dotnet/dotnet</Uri>
-      <Sha>547c640d5626b2976499cb3433abc741a63d67c5</Sha>
+      <Sha>b756a8d8a0e64905e16c81911bb09a8110bc3395</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NET.ILLink" Version="11.0.0-preview.5.26261.101">
+    <Dependency Name="Microsoft.NET.ILLink" Version="11.0.0-preview.6.26319.105">
       <Uri>https://github.com/dotnet/dotnet</Uri>
-      <Sha>547c640d5626b2976499cb3433abc741a63d67c5</Sha>
+      <Sha>b756a8d8a0e64905e16c81911bb09a8110bc3395</Sha>
     </Dependency>
-    <Dependency Name="System.Threading.Channels" Version="11.0.0-preview.5.26261.101">
+    <Dependency Name="System.Threading.Channels" Version="11.0.0-preview.6.26319.105">
       <Uri>https://github.com/dotnet/dotnet</Uri>
-      <Sha>547c640d5626b2976499cb3433abc741a63d67c5</Sha>
+      <Sha>b756a8d8a0e64905e16c81911bb09a8110bc3395</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Extensions.Logging" Version="11.0.0-preview.5.26261.101">
+    <Dependency Name="Microsoft.Extensions.Logging" Version="11.0.0-preview.6.26319.105">
       <Uri>https://github.com/dotnet/dotnet</Uri>
-      <Sha>547c640d5626b2976499cb3433abc741a63d67c5</Sha>
+      <Sha>b756a8d8a0e64905e16c81911bb09a8110bc3395</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.WindowsDesktop.App.Ref" Version="11.0.0-preview.5.26261.101">
+    <Dependency Name="Microsoft.WindowsDesktop.App.Ref" Version="11.0.0-preview.6.26319.105">
       <Uri>https://github.com/dotnet/dotnet</Uri>
-      <Sha>547c640d5626b2976499cb3433abc741a63d67c5</Sha>
+      <Sha>b756a8d8a0e64905e16c81911bb09a8110bc3395</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NET.Runtime.Emscripten.3.1.56.Node.win-x64" Version="11.0.0-preview.5.26261.101">
+    <Dependency Name="Microsoft.NET.Runtime.Emscripten.3.1.56.Node.win-x64" Version="11.0.0-preview.6.26319.105">
       <Uri>https://github.com/dotnet/dotnet</Uri>
-      <Sha>547c640d5626b2976499cb3433abc741a63d67c5</Sha>
+      <Sha>b756a8d8a0e64905e16c81911bb09a8110bc3395</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="11.0.0-beta.26261.101">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="11.0.0-beta.26319.105">
       <Uri>https://github.com/dotnet/dotnet</Uri>
-      <Sha>547c640d5626b2976499cb3433abc741a63d67c5</Sha>
+      <Sha>b756a8d8a0e64905e16c81911bb09a8110bc3395</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="11.0.0-beta.26261.101">
+    <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="11.0.0-beta.26319.105">
       <Uri>https://github.com/dotnet/dotnet</Uri>
-      <Sha>547c640d5626b2976499cb3433abc741a63d67c5</Sha>
+      <Sha>b756a8d8a0e64905e16c81911bb09a8110bc3395</Sha>
     </Dependency>
     <Dependency Name="Microsoft.DotNet.XHarness.CLI" Version="11.0.0-prerelease.26204.1">
       <Uri>https://github.com/dotnet/xharness</Uri>
@@ -55,12 +55,12 @@
       <Sha>6e563dcf3cbf4853316eb4724e49ec92caeabb07</Sha>
       <Uri>https://github.com/dotnet/maui</Uri>
     </Dependency>
-    <Dependency Name="Microsoft.NET.Sdk" Version="11.0.100-preview.5.26261.101">
-      <Sha>547c640d5626b2976499cb3433abc741a63d67c5</Sha>
+    <Dependency Name="Microsoft.NET.Sdk" Version="11.0.100-preview.6.26319.105">
+      <Sha>b756a8d8a0e64905e16c81911bb09a8110bc3395</Sha>
       <Uri>https://github.com/dotnet/dotnet</Uri>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.App.Ref" Version="11.0.0-preview.5.26261.101">
-      <Sha>547c640d5626b2976499cb3433abc741a63d67c5</Sha>
+    <Dependency Name="Microsoft.NETCore.App.Ref" Version="11.0.0-preview.6.26319.105">
+      <Sha>b756a8d8a0e64905e16c81911bb09a8110bc3395</Sha>
       <Uri>https://github.com/dotnet/dotnet</Uri>
     </Dependency>
     <Dependency Name="Microsoft.Android.Sdk.Windows" Version="36.1.65">

diff --git a/eng/Versions.props b/eng/Versions.props
@@ -7,12 +7,12 @@
   </PropertyGroup>
   <!--Package versions-->
   <PropertyGroup>
-    <MicrosoftNETILLinkTasksVersion>11.0.0-preview.5.26261.101</MicrosoftNETILLinkTasksVersion>
-    <MicrosoftNETILLinkPackageVersion>11.0.0-preview.5.26261.101</MicrosoftNETILLinkPackageVersion>
-    <SystemThreadingChannelsPackageVersion>11.0.0-preview.5.26261.101</SystemThreadingChannelsPackageVersion>
-    <MicrosoftExtensionsLoggingPackageVersion>11.0.0-preview.5.26261.101</MicrosoftExtensionsLoggingPackageVersion>
+    <MicrosoftNETILLinkTasksVersion>11.0.0-preview.6.26319.105</MicrosoftNETILLinkTasksVersion>
+    <MicrosoftNETILLinkPackageVersion>11.0.0-preview.6.26319.105</MicrosoftNETILLinkPackageVersion>
+    <SystemThreadingChannelsPackageVersion>11.0.0-preview.6.26319.105</SystemThreadingChannelsPackageVersion>
+    <MicrosoftExtensionsLoggingPackageVersion>11.0.0-preview.6.26319.105</MicrosoftExtensionsLoggingPackageVersion>
     <BenchmarkDotNetVersion>0.16.0-nightly.20260320.467</BenchmarkDotNetVersion>
-    <MicrosoftNETRuntimeEmscripten3156Nodewinx64Version>11.0.0-preview.5.26261.101</MicrosoftNETRuntimeEmscripten3156Nodewinx64Version>
+    <MicrosoftNETRuntimeEmscripten3156Nodewinx64Version>11.0.0-preview.6.26319.105</MicrosoftNETRuntimeEmscripten3156Nodewinx64Version>
     <MicrosoftDotNetXHarnessCLIVersion>11.0.0-prerelease.26204.1</MicrosoftDotNetXHarnessCLIVersion>
   </PropertyGroup>
   <!--Package names-->

diff --git a/eng/common/SetupNugetSources.ps1 b/eng/common/SetupNugetSources.ps1
@@ -32,6 +32,11 @@ $ErrorActionPreference = "Stop"
 Set-StrictMode -Version 2.0
 [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
 
+# This script only consumes helper functions from tools.ps1 to configure NuGet feeds.
+# Skip importing configure-toolset.ps1 so that repo-specific toolset setup (e.g. acquiring
+# a bootstrap SDK) is not triggered as a side effect of feed configuration.
+$disableConfigureToolsetImport = $true
+
 . $PSScriptRoot\tools.ps1
 
 # Adds or enables the package source with the given name

diff --git a/eng/common/SetupNugetSources.sh b/eng/common/SetupNugetSources.sh
@@ -40,6 +40,11 @@ while [[ -h "$source" ]]; do
 done
 scriptroot="$( cd -P "$( dirname "$source" )" && pwd )"
 
+# This script only consumes helper functions from tools.sh to configure NuGet feeds.
+# Skip importing configure-toolset.sh so that repo-specific toolset setup (e.g. acquiring
+# a bootstrap SDK) is not triggered as a side effect of feed configuration.
+disable_configure_toolset_import=1
+
 . "$scriptroot/tools.sh"
 
 if [ ! -f "$ConfigFile" ]; then

diff --git a/eng/common/build.ps1 b/eng/common/build.ps1
@@ -24,6 +24,7 @@ Param(
   [switch][Alias('pb')]$productBuild,
   [switch]$fromVMR,
   [switch][Alias('bl')]$binaryLog,
+  [string][Alias('bln')]$binaryLogName = '',
   [switch][Alias('nobl')]$excludeCIBinarylog,
   [switch] $ci,
   [switch] $prepareMachine,
@@ -46,6 +47,7 @@ function Print-Usage() {
   Write-Host "  -platform <value>       Platform configuration: 'x86', 'x64' or any valid Platform value to pass to msbuild"
   Write-Host "  -verbosity <value>      Msbuild verbosity: q[uiet], m[inimal], n[ormal], d[etailed], and diag[nostic] (short: -v)"
   Write-Host "  -binaryLog              Output binary log (short: -bl)"
+  Write-Host "  -binaryLogName <value>  Binary log file name or path; implies -binaryLog (short: -bln)"
   Write-Host "  -help                   Print help and exit"
   Write-Host ""
 
@@ -102,7 +104,19 @@ function Build {
   $toolsetBuildProj = InitializeToolset
   InitializeCustomToolset
 
-  $bl = if ($binaryLog) { '/bl:' + (Join-Path $LogDir 'Build.binlog') } else { '' }
+  $bl = ''
+  if ($binaryLog) {
+    $binaryLogPath = if ([string]::IsNullOrEmpty($binaryLogName)) {
+      Join-Path $LogDir 'Build.binlog'
+    } elseif ([System.IO.Path]::IsPathRooted($binaryLogName)) {
+      $binaryLogName
+    } else {
+      Join-Path $LogDir $binaryLogName
+    }
+
+    Create-Directory (Split-Path -Parent $binaryLogPath)
+    $bl = '/bl:' + $binaryLogPath
+  }
   $platformArg = if ($platform) { "/p:Platform=$platform" } else { '' }
   $check = if ($buildCheck) { '/check' } else { '' }
 
@@ -159,7 +173,15 @@ try {
     if (-not $excludeCIBinarylog) {
       $binaryLog = $true
     }
-    $nodeReuse = $false
+    # Disable node reuse on CI unless explicitly opted in via MSBUILD_NODEREUSE_ENABLED.
+    # Internal testing only; this env var will be replaced with a switch (https://github.com/dotnet/arcade/issues/17013) and must not be depended on.
+    if ($env:MSBUILD_NODEREUSE_ENABLED -ne "1") {
+      $nodeReuse = $false
+    }
+  }
+
+  if (-not [string]::IsNullOrEmpty($binaryLogName)) {
+    $binaryLog = $true
   }
 
   if ($nativeToolsOnMachine) {

diff --git a/eng/common/build.sh b/eng/common/build.sh
@@ -13,6 +13,7 @@ usage()
   echo "  --configuration <value>    Build configuration: 'Debug' or 'Release' (short: -c)"
   echo "  --verbosity <value>        Msbuild verbosity: q[uiet], m[inimal], n[ormal], d[etailed], and diag[nostic] (short: -v)"
   echo "  --binaryLog                Create MSBuild binary log (short: -bl)"
+  echo "  --binaryLogName <value>    Binary log file name or path; implies --binaryLog (short: -bln)"
   echo "  --help                     Print help and exit (short: -h)"
   echo ""
 
@@ -83,8 +84,8 @@ warn_not_as_error=''
 node_reuse=true
 build_check=false
 binary_log=false
+binary_log_name=''
 exclude_ci_binary_log=false
-pipelines_log=false
 
 projects=''
 configuration=''
@@ -115,12 +116,14 @@ while [[ $# -gt 0 ]]; do
     -binarylog|-bl)
       binary_log=true
       ;;
+    -binarylogname|-bln)
+      binary_log=true
+      binary_log_name=$2
+      shift
+      ;;
     -excludecibinarylog|-nobl)
       exclude_ci_binary_log=true
       ;;
-    -pipelineslog|-pl)
-      pipelines_log=true
-      ;;
     -restore|-r)
       restore=true
       ;;
@@ -210,8 +213,11 @@ if [[ -z "$configuration" ]]; then
 fi
 
 if [[ "$ci" == true ]]; then
-  pipelines_log=true
-  node_reuse=false
+  # Disable node reuse on CI unless explicitly opted in via MSBUILD_NODEREUSE_ENABLED.
+  # Internal testing only; this env var will be replaced with a switch (https://github.com/dotnet/arcade/issues/17013) and must not be depended on.
+  if [[ "${MSBUILD_NODEREUSE_ENABLED:-}" != "1" ]]; then
+    node_reuse=false
+  fi
   if [[ "$exclude_ci_binary_log" == false ]]; then
     binary_log=true
   fi
@@ -237,7 +243,17 @@ function Build {
 
   local bl=""
   if [[ "$binary_log" == true ]]; then
-    bl="/bl:\"$log_dir/Build.binlog\""
+    local binary_log_path=""
+    if [[ -z "$binary_log_name" ]]; then
+      binary_log_path="$log_dir/Build.binlog"
+    elif [[ "$binary_log_name" = /* ]]; then
+      binary_log_path="$binary_log_name"
+    else
+      binary_log_path="$log_dir/$binary_log_name"
+    fi
+
+    mkdir -p "$(dirname "$binary_log_path")"
+    bl="/bl:\"$binary_log_path\""
   fi
 
   local check=""