diff --git a/src/Build.UnitTests/BackEnd/TaskHostTaskComplete_Tests.cs b/src/Build.UnitTests/BackEnd/TaskHostTaskComplete_Tests.cs
index 23cf234576d..b6b6025441b 100644
--- a/src/Build.UnitTests/BackEnd/TaskHostTaskComplete_Tests.cs
+++ b/src/Build.UnitTests/BackEnd/TaskHostTaskComplete_Tests.cs
@@ -32,8 +32,10 @@ public void TestConstructors()
                 new FileAccessData(
                     ReportedFileOperation.CreateFile,
                     RequestedAccess.Read,
-                    0,
-                    0,
+                    processId: 123,
+                    id: 1,
+                    correlationId: 0,
+                    error: 0,
                     DesiredAccess.GENERIC_READ,
                     FlagsAndAttributes.FILE_ATTRIBUTE_NORMAL,
                     "foo",
diff --git a/src/Build/BackEnd/Components/Communications/DetouredNodeLauncher.cs b/src/Build/BackEnd/Components/Communications/DetouredNodeLauncher.cs
index a10c7b4eb8b..8bfb43b1ecb 100644
--- a/src/Build/BackEnd/Components/Communications/DetouredNodeLauncher.cs
+++ b/src/Build/BackEnd/Components/Communications/DetouredNodeLauncher.cs
@@ -173,6 +173,8 @@ public override void HandleDebugMessage(DebugData debugData)
                     (Experimental.FileAccess.ReportedFileOperation)fileAccessData.Operation,
                     (Experimental.FileAccess.RequestedAccess)fileAccessData.RequestedAccess,
                     fileAccessData.ProcessId,
+                    fileAccessData.Id,
+                    fileAccessData.CorrelationId,
                     fileAccessData.Error,
                     (Experimental.FileAccess.DesiredAccess)fileAccessData.DesiredAccess,
                     (Experimental.FileAccess.FlagsAndAttributes)fileAccessData.FlagsAndAttributes,
diff --git a/src/Build/CompatibilitySuppressions.xml b/src/Build/CompatibilitySuppressions.xml
index 8497df99fb3..85a8e28b087 100644
--- a/src/Build/CompatibilitySuppressions.xml
+++ b/src/Build/CompatibilitySuppressions.xml
@@ -260,4 +260,33 @@
     <Right>ref/net8.0/Microsoft.Build.dll</Right>
     <IsBaselineSuppression>true</IsBaselineSuppression>
   </Suppression>
+  <!-- Changes to the Experimental namespace are considered non-breaking, and this ctor should be used only internally, not by plugin code. -->
+  <Suppression>
+    <DiagnosticId>CP0002</DiagnosticId>
+    <Target>M:Microsoft.Build.Experimental.FileAccess.FileAccessData.#ctor(Microsoft.Build.Experimental.FileAccess.ReportedFileOperation,Microsoft.Build.Experimental.FileAccess.RequestedAccess,System.UInt32,System.UInt32,Microsoft.Build.Experimental.FileAccess.DesiredAccess,Microsoft.Build.Experimental.FileAccess.FlagsAndAttributes,System.String,System.String,System.Boolean)</Target>
+    <Left>lib/net472/Microsoft.Build.dll</Left>
+    <Right>lib/net472/Microsoft.Build.dll</Right>
+    <IsBaselineSuppression>true</IsBaselineSuppression>
+  </Suppression>
+  <Suppression>
+    <DiagnosticId>CP0002</DiagnosticId>
+    <Target>M:Microsoft.Build.Experimental.FileAccess.FileAccessData.#ctor(Microsoft.Build.Experimental.FileAccess.ReportedFileOperation,Microsoft.Build.Experimental.FileAccess.RequestedAccess,System.UInt32,System.UInt32,Microsoft.Build.Experimental.FileAccess.DesiredAccess,Microsoft.Build.Experimental.FileAccess.FlagsAndAttributes,System.String,System.String,System.Boolean)</Target>
+    <Left>lib/net8.0/Microsoft.Build.dll</Left>
+    <Right>lib/net8.0/Microsoft.Build.dll</Right>
+    <IsBaselineSuppression>true</IsBaselineSuppression>
+  </Suppression>
+  <Suppression>
+    <DiagnosticId>CP0002</DiagnosticId>
+    <Target>M:Microsoft.Build.Experimental.FileAccess.FileAccessData.#ctor(Microsoft.Build.Experimental.FileAccess.ReportedFileOperation,Microsoft.Build.Experimental.FileAccess.RequestedAccess,System.UInt32,System.UInt32,Microsoft.Build.Experimental.FileAccess.DesiredAccess,Microsoft.Build.Experimental.FileAccess.FlagsAndAttributes,System.String,System.String,System.Boolean)</Target>
+    <Left>ref/net472/Microsoft.Build.dll</Left>
+    <Right>ref/net472/Microsoft.Build.dll</Right>
+    <IsBaselineSuppression>true</IsBaselineSuppression>
+  </Suppression>
+  <Suppression>
+    <DiagnosticId>CP0002</DiagnosticId>
+    <Target>M:Microsoft.Build.Experimental.FileAccess.FileAccessData.#ctor(Microsoft.Build.Experimental.FileAccess.ReportedFileOperation,Microsoft.Build.Experimental.FileAccess.RequestedAccess,System.UInt32,System.UInt32,Microsoft.Build.Experimental.FileAccess.DesiredAccess,Microsoft.Build.Experimental.FileAccess.FlagsAndAttributes,System.String,System.String,System.Boolean)</Target>
+    <Left>ref/net8.0/Microsoft.Build.dll</Left>
+    <Right>ref/net8.0/Microsoft.Build.dll</Right>
+    <IsBaselineSuppression>true</IsBaselineSuppression>
+  </Suppression>
 </Suppressions>
\ No newline at end of file
diff --git a/src/Build/FileAccess/FileAccessData.cs b/src/Build/FileAccess/FileAccessData.cs
index 64cd45a92d4..7d66385def7 100644
--- a/src/Build/FileAccess/FileAccessData.cs
+++ b/src/Build/FileAccess/FileAccessData.cs
@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System;
-
 using Microsoft.Build.BackEnd;
 
 namespace Microsoft.Build.Experimental.FileAccess
@@ -17,6 +16,8 @@ public struct FileAccessData
         private ReportedFileOperation _operation;
         private RequestedAccess _requestedAccess;
         private uint _processId;
+        private uint _id;
+        private uint _correlationId;
         private uint _error;
         private DesiredAccess _desiredAccess;
         private FlagsAndAttributes _flagsAndAttributes;
@@ -28,6 +29,8 @@ public struct FileAccessData
             ReportedFileOperation operation,
             RequestedAccess requestedAccess,
             uint processId,
+            uint id,
+            uint correlationId,
             uint error,
             DesiredAccess desiredAccess,
             FlagsAndAttributes flagsAndAttributes,
@@ -38,6 +41,8 @@ public struct FileAccessData
             _operation = operation;
             _requestedAccess = requestedAccess;
             _processId = processId;
+            _id = id;
+            _correlationId = correlationId;
             _error = error;
             _desiredAccess = desiredAccess;
             _flagsAndAttributes = flagsAndAttributes;
@@ -56,7 +61,7 @@ public ReportedFileOperation Operation
         /// <summary>The requested access.</summary>
         public RequestedAccess RequestedAccess
         {
-            get => _requestedAccess;
+            readonly get => _requestedAccess;
             private set => _requestedAccess = value;
         }
 
@@ -67,6 +72,22 @@ public uint ProcessId
             private set => _processId = value;
         }
 
+        /// <summary>Id of file access.</summary>
+        public uint Id
+        {
+            readonly get => _id;
+            private set => _id = value;
+        }
+
+
+        /// <summary>Correlation id of file access.</summary>
+        public uint CorrelationId
+        {
+            readonly get => _correlationId;
+            private set => _correlationId = value;
+        }
+
+
         /// <summary>The error code of the operation.</summary>
         public uint Error
         {
@@ -114,6 +135,8 @@ void ITranslatable.Translate(ITranslator translator)
             translator.TranslateEnum(ref _operation, (int)_operation);
             translator.TranslateEnum(ref _requestedAccess, (int)_requestedAccess);
             translator.Translate(ref _processId);
+            translator.Translate(ref _id);
+            translator.Translate(ref _correlationId);
             translator.Translate(ref _error);
             translator.TranslateEnum(ref _desiredAccess, (int)_desiredAccess);
             translator.TranslateEnum(ref _flagsAndAttributes, (int)_flagsAndAttributes);
diff --git a/src/Tasks/Microsoft.Common.CurrentVersion.targets b/src/Tasks/Microsoft.Common.CurrentVersion.targets
index 7ea4d4d06fb..ec090857272 100644
--- a/src/Tasks/Microsoft.Common.CurrentVersion.targets
+++ b/src/Tasks/Microsoft.Common.CurrentVersion.targets
@@ -4491,23 +4491,38 @@ Copyright (C) Microsoft Corporation. All rights reserved.
         either have the .exe/.dll extension or their publish status has been overriden in VS so they will show up in the PublishFiles collection.
         The PublishProtocol property is available only in .NET>=5 so we will used that to exclude .NET FX 4.X case.
       -->
-      <_ClickOnceTransitiveContentItemsTemp Include="@(_TransitiveItemsToCopyToOutputDirectory->'%(TargetPath)')" Condition="'$(PublishProtocol)' == 'ClickOnce'" >
+      <_ClickOnceTransitiveContentItemsTemp Include="@(_TransitiveItemsToCopyToOutputDirectory->WithoutMetadataValue('CopyToPublishDirectory', 'Never')->'%(TargetPath)')" Condition="'$(PublishProtocol)' == 'ClickOnce'" >
         <SavedIdentity>%(Identity)</SavedIdentity>
       </_ClickOnceTransitiveContentItemsTemp>
       <_ClickOnceTransitiveContentItems Include="@(_ClickOnceTransitiveContentItemsTemp->'%(SavedIdentity)')" Condition="'%(Identity)'=='@(PublishFile)' Or '%(Extension)'=='.exe' Or '%(Extension)'=='.dll'" />
 
+      <!-- 
+        ClickOnce content items is union of transitive content items and content items from this project.
+        We also exclude content items from this project that have set CopyToPublishDirectory to Never.
+      -->
+      <_ClickOnceContentItems Include="@(ContentWithTargetPath->WithoutMetadataValue('CopyToPublishDirectory', 'Never'))" />
+      <_ClickOnceContentItems Include="@(_ClickOnceTransitiveContentItems)" />
+
       <!--
         For .NET>=5, we need to check if we need to publish any copylocal items from None group. For such items to be published, they either
         have .exe/.dll extension or their publish status has been overriden in VS so they will show up in the PublishFiles collection.
         The PublishProtocol property is available only in .NET>=5 so we will used that to exclude .NET FX 4.X case.
       -->
       <!-- Include items from None group for publishing -->
-      <_ClickOnceNoneItemsTemp Include="@(_NoneWithTargetPath->'%(TargetPath)')" Condition="'$(PublishProtocol)'=='Clickonce' And ('%(_NoneWithTargetPath.CopyToOutputDirectory)'=='Always' or '%(_NoneWithTargetPath.CopyToOutputDirectory)'=='PreserveNewest')">
+      <_ClickOnceNoneItemsTemp Include="@(_NoneWithTargetPath->WithoutMetadataValue('CopyToPublishDirectory', 'Never')->'%(TargetPath)')" Condition="'$(PublishProtocol)'=='Clickonce' And ('%(_NoneWithTargetPath.CopyToOutputDirectory)'=='Always' or '%(_NoneWithTargetPath.CopyToOutputDirectory)'=='PreserveNewest')">
         <SavedIdentity>%(Identity)</SavedIdentity>
       </_ClickOnceNoneItemsTemp>
       <_ClickOnceNoneItems Include="@(_ClickOnceNoneItemsTemp->'%(SavedIdentity)')" Condition="'%(Identity)'=='@(PublishFile)' Or '%(Extension)'=='.exe' Or '%(Extension)'=='.dll'" />
 
-      <_ClickOnceFiles Include="@(ContentWithTargetPath);@(_DeploymentManifestIconFile);@(AppConfigWithTargetPath);@(NetCoreRuntimeJsonFilesForClickOnce);@(_ClickOnceRuntimeCopyLocalItems);@(_ClickOnceNoneItems);@(_ClickOnceTransitiveContentItems)"/>
+      <_ClickOnceFiles Include="@(_ClickOnceContentItems);@(_DeploymentManifestIconFile);@(AppConfigWithTargetPath);@(NetCoreRuntimeJsonFilesForClickOnce);@(_ClickOnceRuntimeCopyLocalItems);@(_ClickOnceNoneItems)" />
+
+      <!-- clear temporary item groups to free memory -->
+      <_ClickOnceNoneItemsTemp Remove="@(_ClickOnceNoneItemsTemp)"/>
+      <_ClickOnceNoneItems Remove="@(_ClickOnceNoneItems)"/>
+      <_ClickOnceTransitiveContentItemsTemp Remove="@(_ClickOnceTransitiveContentItemsTemp)"/>
+      <_ClickOnceTransitiveContentItems Remove="@(_ClickOnceTransitiveContentItems)"/>
+      <_ClickOnceContentItems Remove="@(_ClickOnceContentItems)"/>
+      <_ClickOnceRuntimeCopyLocalItems Remove="@(_ClickOnceRuntimeCopyLocalItems)"/>
     </ItemGroup>
 
     <!-- For single file publish, we need to include the SF bundle EXE, application icon file and files excluded from the bundle EXE in the clickonce manifest -->