dotnet · vzarytovskii · Feb 28, 2024 · Feb 14, 2024 · Feb 15, 2024 · Feb 16, 2024
diff --git a/DEVGUIDE.md b/DEVGUIDE.md
@@ -49,7 +49,7 @@ Install the latest released [Visual Studio](https://visualstudio.microsoft.com/v
 * .NET desktop development (also check F# desktop support, as this will install some legacy templates)
 * Visual Studio extension development
 
-You will also need the latest .NET 7 SDK installed from [here](https://dotnet.microsoft.com/download/dotnet/7.0).
+You will also need .NET SDK installed from [here](https://dotnet.microsoft.com/download/dotnet), exact version can be found in the global.json file in the root of the repository.
 
 Building is simple:
 
@@ -76,7 +76,7 @@ If you are just developing the core compiler and library then building ``FSharp.
 We recommend installing the latest Visual Studio preview and using that if you are on Windows. However, if you prefer not to do that, you will need to install the following:
 
 * [.NET Framework 4.7.2](https://dotnet.microsoft.com/download/dotnet-framework/net472)
-* [.NET 7](https://dotnet.microsoft.com/download/dotnet/7.0)
+* [.NET SDK](https://dotnet.microsoft.com/download/dotnet) (see exact version in global.json file in the repository root).
 
 You'll need to pass an additional flag to the build script:
 

diff --git a/Directory.Build.props b/Directory.Build.props
@@ -4,12 +4,12 @@
     <LangVersion Condition="'$(FSharpLangVersion)' != ''">$(FSharpLangVersion)</LangVersion>
     <RepoRoot Condition="'$(RepoRoot)' == ''">$(MSBuildThisFileDirectory)</RepoRoot>
     <AccelerateBuildsInVisualStudio>true</AccelerateBuildsInVisualStudio>
+    <FSharpNetCoreProductDefaultTargetFramework>net8.0</FSharpNetCoreProductDefaultTargetFramework>
   </PropertyGroup>
   <!--
    When developers load the FSharp.Compiler.Service solution we set FSHARPCORE_USE_PACKAGE to true if it hasn't already been set to a value.
-   This option ensures that building and testing uses the specified FSharp.Core nuget package instead of the local
-   FSharp.Core project.
-   We also disable arcade and reset certain artifacts and compiler paths to use default ones
+   This option ensures that building and testing uses the specified FSharp.Core nuget package instead of the local FSharp.Core project.
+   We also disable arcade and reset certain artifacts and compiler paths to use default ones.
    All settings below can be overriden via CLI switches if needed. -->
 
   <PropertyGroup Condition="'$(SolutionName)' == 'FSharp.Compiler.Service' and '$(BUILDING_USING_DOTNET)' != 'false'">
@@ -21,25 +21,49 @@
       <BUILDING_USING_DOTNET>true</BUILDING_USING_DOTNET>
   </PropertyGroup>
 
-  <Import Project="$(RepoRoot)/Directory.Build.props.user" Condition = "Exists('$(RepoRoot)/Directory.Build.props.user')" />
+  <Import Project="$(RepoRoot)/Directory.Build.props.user" Condition="Exists('$(RepoRoot)/Directory.Build.props.user')" />
 
   <PropertyGroup Condition="'$(BUILDING_USING_DOTNET)' == 'true'">
-    <BUILDING_WITH_LKG>true</BUILDING_WITH_LKG>
-    <BUILD_FROM_SOURCE>true</BUILD_FROM_SOURCE>
     <DisableAutoSetFscCompilerPath>false</DisableAutoSetFscCompilerPath>
     <FSHARPCORE_USE_PACKAGE Condition="'$(FSHARPCORE_USE_PACKAGE)' == ''">true</FSHARPCORE_USE_PACKAGE>
     <DISABLE_ARCADE Condition="'$(DISABLE_ARCADE)' == ''">true</DISABLE_ARCADE>
     <ArtifactsDir>$(MSBuildThisFileDirectory)artifacts/</ArtifactsDir>
     <OutputPath>$(ArtifactsDir)/bin/$(MSBuildProjectName)/$(Configuration)/</OutputPath>
     <IntermediateOutputPath>$(ArtifactsDir)obj/$(MSBuildProjectName)/$(Configuration)/</IntermediateOutputPath>
-    <FsLexPath>$(ArtifactsDir)/bin/fslex/$(Configuration)/net8.0/fslex.dll</FsLexPath>
-    <FsYaccPath>$(ArtifactsDir)/bin/fsyacc/$(Configuration)/net8.0/fsyacc.dll</FsYaccPath>
+    <!-- Note, that default framework is used here (the one we use for development in the current cycle),
+         since it's a non-arcade and non-sourcebuild scenario -->
+    <FsLexPath>$(ArtifactsDir)/bin/fslex/$(Configuration)/$(FSharpNetCoreProductDefaultTargetFramework)/fslex.dll</FsLexPath>
+    <FsYaccPath>$(ArtifactsDir)/bin/fsyacc/$(Configuration)/$(FSharpNetCoreProductDefaultTargetFramework)/fsyacc.dll</FsYaccPath>
+    <DefineConstants>NO_CHECKNULLS;BUILDING_WITH_LKG;NO_NULLCHECKING_LIB_SUPPORT;$(DefineConstants)</DefineConstants>
   </PropertyGroup>
+  <Import Project="$(MSBuildThisFileDirectory)/eng/Versions.props" Condition="'$(DISABLE_ARCADE)' == 'true'" />
 
-  <Import Project="$(MSBuildThisFileDirectory)/eng/Versions.props" Condition="'$(DISABLE_ARCADE)' == 'true'"/>
+  <Import Project="FSharpBuild.Directory.Build.props" Condition=" '$(FSharpTestCompilerVersion)' == '' " />
+  <!-- To support source-build for the "next" version of .NET without forcing this repo to use it,
+       we can utilize arcade's $(NetCurrent) property, and set it ourselves in the arcade-less scenarios.
+       For FCS solution, we set it to one for current dev cycle.
+       When used with arcade, and inserting/building for net8 branches, it will set it to net8.0, for net9 branches to net9.0 and so on. -->
+  <Choose>
+    <!-- Once we move to OOP in VS, and major dependants of FCS will move to netcore (not netstandard),
+         we should also support $(NetPrevious) for all releases.
+         This will likely include FCS and FSharp.Core as well as shipped products.
+         Right now, it only covers products we ship (FSC and FSI), not NuGet packages. -->
+    <When Condition="'$(DotNetBuildFromSource)' == 'true' AND '$(DotNetBuildFromSourceFlavor)' == 'Product'">
+      <PropertyGroup>
+        <FSharpNetCoreProductTargetFramework>$(NetCurrent)</FSharpNetCoreProductTargetFramework>
+      </PropertyGroup>
+    </When>
+    <Otherwise>
+      <PropertyGroup>
+        <FSharpNetCoreProductTargetFramework>$(FSharpNetCoreProductDefaultTargetFramework)</FSharpNetCoreProductTargetFramework>
+      </PropertyGroup>
+    </Otherwise>
+  </Choose>
 
-  <Import Project="FSharpBuild.Directory.Build.props" Condition = " '$(FSharpTestCompilerVersion)' == '' "/>
-  <Import Project="FSharpTests.Directory.Build.props" Condition = " '$(FSharpTestCompilerVersion)' != '' "/>
+  <!-- It's important we set TFM before this, since FSharpTests.Directory.Build.props uses it.
+       TODO(vlza): this build props looks outdated, since we only use $(FSharpTestCompilerVersion) in TP tests or cambridge suite (which we slowly want to migrate to xUnit).
+                   We probably should remove or revisit it. -->
+  <Import Project="FSharpTests.Directory.Build.props" Condition=" '$(FSharpTestCompilerVersion)' != '' " />
 
   <ItemGroup>
     <!-- If there is a README.md next to a project file, include it (for easier access in the IDE) -->

diff --git a/FSharp.Compiler.Service.sln b/FSharp.Compiler.Service.sln
@@ -29,12 +29,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Benchmarks", "Benchmarks",
 		tests\benchmarks\FCSBenchmarks\SmokeTestAllBenchmarks.ps1 = tests\benchmarks\FCSBenchmarks\SmokeTestAllBenchmarks.ps1
 	EndProjectSection
 EndProject
-Project("{6EC3EE1D-3C4E-46DD-8F32-0CC8E7565705}") = "HistoricalBenchmark", "tests\benchmarks\FCSBenchmarks\BenchmarkComparison\HistoricalBenchmark.fsproj", "{35F5F1C5-AE4F-4B5A-8D94-1AF708724FD5}"
-EndProject
-Project("{6EC3EE1D-3C4E-46DD-8F32-0CC8E7565705}") = "FSharp.Compiler.Benchmarks", "tests\benchmarks\FCSBenchmarks\CompilerServiceBenchmarks\FSharp.Compiler.Benchmarks.fsproj", "{C1950E28-1CB7-4DEC-BB3A-8A0443A17282}"
-EndProject
-Project("{6EC3EE1D-3C4E-46DD-8F32-0CC8E7565705}") = "HistoricalBenchmark.Runner", "tests\benchmarks\FCSBenchmarks\BenchmarkComparison\HistoricalBenchmark.Runner\HistoricalBenchmark.Runner.fsproj", "{07CD957A-3C31-4F75-A735-16CE72E1BD71}"
-EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{DD4D4A7E-D519-4409-89DA-16DCA3EF80AA}"
 	ProjectSection(SolutionItems) = preProject
 		src\Compiler\FSComp.txt = src\Compiler\FSComp.txt
@@ -61,8 +55,6 @@ Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "FSharp.Compiler.Interactive
 EndProject
 Project("{6EC3EE1D-3C4E-46DD-8F32-0CC8E7565705}") = "FSharp.Compiler.UnitTests", "tests\FSharp.Compiler.UnitTests\FSharp.Compiler.UnitTests.fsproj", "{0C0BDAF4-7D47-4BDA-9992-077F63D6B494}"
 EndProject
-Project("{6EC3EE1D-3C4E-46DD-8F32-0CC8E7565705}") = "FSharp.Benchmarks.Common", "tests\benchmarks\FSharp.Benchmarks.Common\FSharp.Benchmarks.Common.fsproj", "{A7ACFD1F-D1B8-483A-A210-200BB6B4BD7E}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -97,18 +89,6 @@ Global
 		{2A182B7D-EDA3-4BF2-84B8-C7553BB7A5A7}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2A182B7D-EDA3-4BF2-84B8-C7553BB7A5A7}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{2A182B7D-EDA3-4BF2-84B8-C7553BB7A5A7}.Release|Any CPU.Build.0 = Release|Any CPU
-		{35F5F1C5-AE4F-4B5A-8D94-1AF708724FD5}.Debug|Any CPU.ActiveCfg = Release|Any CPU
-		{35F5F1C5-AE4F-4B5A-8D94-1AF708724FD5}.Debug|Any CPU.Build.0 = Release|Any CPU
-		{35F5F1C5-AE4F-4B5A-8D94-1AF708724FD5}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{35F5F1C5-AE4F-4B5A-8D94-1AF708724FD5}.Release|Any CPU.Build.0 = Release|Any CPU
-		{C1950E28-1CB7-4DEC-BB3A-8A0443A17282}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{C1950E28-1CB7-4DEC-BB3A-8A0443A17282}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{C1950E28-1CB7-4DEC-BB3A-8A0443A17282}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{C1950E28-1CB7-4DEC-BB3A-8A0443A17282}.Release|Any CPU.Build.0 = Release|Any CPU
-		{07CD957A-3C31-4F75-A735-16CE72E1BD71}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{07CD957A-3C31-4F75-A735-16CE72E1BD71}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{07CD957A-3C31-4F75-A735-16CE72E1BD71}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{07CD957A-3C31-4F75-A735-16CE72E1BD71}.Release|Any CPU.Build.0 = Release|Any CPU
 		{A6995088-3C1D-42BC-B3DD-72B1EEAB23F4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{A6995088-3C1D-42BC-B3DD-72B1EEAB23F4}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A6995088-3C1D-42BC-B3DD-72B1EEAB23F4}.Release|Any CPU.ActiveCfg = Release|Any CPU
@@ -145,10 +125,6 @@ Global
 		{0C0BDAF4-7D47-4BDA-9992-077F63D6B494}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{0C0BDAF4-7D47-4BDA-9992-077F63D6B494}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{0C0BDAF4-7D47-4BDA-9992-077F63D6B494}.Release|Any CPU.Build.0 = Release|Any CPU
-		{A7ACFD1F-D1B8-483A-A210-200BB6B4BD7E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{A7ACFD1F-D1B8-483A-A210-200BB6B4BD7E}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{A7ACFD1F-D1B8-483A-A210-200BB6B4BD7E}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{A7ACFD1F-D1B8-483A-A210-200BB6B4BD7E}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -157,10 +133,6 @@ Global
 		{BFE6E6F1-1B73-404F-A3A5-30B57E5E0731} = {875D91AC-BA4C-4191-AB11-AE461DB9B8DB}
 		{2EF674B9-8B56-4796-9933-42B2629E52C3} = {875D91AC-BA4C-4191-AB11-AE461DB9B8DB}
 		{38A23D53-E2BF-4B76-907F-49F41D60C88E} = {875D91AC-BA4C-4191-AB11-AE461DB9B8DB}
-		{35F5F1C5-AE4F-4B5A-8D94-1AF708724FD5} = {AF321816-B4A0-41DD-9A1D-484E8A20C6F6}
-		{C1950E28-1CB7-4DEC-BB3A-8A0443A17282} = {AF321816-B4A0-41DD-9A1D-484E8A20C6F6}
-		{07CD957A-3C31-4F75-A735-16CE72E1BD71} = {AF321816-B4A0-41DD-9A1D-484E8A20C6F6}
-		{A7ACFD1F-D1B8-483A-A210-200BB6B4BD7E} = {AF321816-B4A0-41DD-9A1D-484E8A20C6F6}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {F9A60F3B-D894-4C8E-BA0F-C51115B25A5A}

diff --git a/FSharpTests.Directory.Build.props b/FSharpTests.Directory.Build.props
@@ -22,18 +22,18 @@
     <FscToolPath>$([System.IO.Path]::GetDirectoryName('$(DOTNET_HOST_PATH)'))</FscToolPath>
     <FscToolExe Condition="'$(OS)' != 'Unix'">dotnet.exe</FscToolExe>
     <FscToolExe Condition="'$(OS)' == 'Unix'">dotnet</FscToolExe>
-    <DotnetFscCompilerPath>$(MSBuildThisFileDirectory)artifacts\bin\fsc\$(Configuration)\net8.0\fsc.dll</DotnetFscCompilerPath>
+    <DotnetFscCompilerPath>$(MSBuildThisFileDirectory)artifacts\bin\fsc\$(Configuration)\$(FSharpNetCoreProductTargetFramework)\fsc.dll</DotnetFscCompilerPath>
 
     <FsiToolPath>$([System.IO.Path]::GetDirectoryName('$(DOTNET_HOST_PATH)'))</FsiToolPath>
     <FsiToolExe Condition="'$(OS)' != 'Unix'">dotnet.exe</FsiToolExe>
     <FsiToolExe Condition="'$(OS)' == 'Unix'">dotnet</FsiToolExe>
-    <DotnetFsiCompilerPath>$(MSBuildThisFileDirectory)artifacts\bin\fsi\$(Configuration)\net8.0\fsi.dll</DotnetFsiCompilerPath>
+    <DotnetFsiCompilerPath>$(MSBuildThisFileDirectory)artifacts\bin\fsi\$(Configuration)\$(FSharpNetCoreProductTargetFramework)\fsi.dll</DotnetFsiCompilerPath>
   </PropertyGroup>
 
   <!-- SDK targets override -->
   <PropertyGroup>
     <_FSharpBuildTargetFramework Condition="'$(MSBuildRuntimeType)'!='Core'">net472</_FSharpBuildTargetFramework>
-    <_FSharpBuildTargetFramework Condition="'$(MSBuildRuntimeType)'=='Core'">net8.0</_FSharpBuildTargetFramework>
+    <_FSharpBuildTargetFramework Condition="'$(MSBuildRuntimeType)'=='Core'">$(FSharpNetCoreProductTargetFramework)</_FSharpBuildTargetFramework>
     <_FSharpBuildBinPath>$(MSBuildThisFileDirectory)artifacts\bin\fsc\$(Configuration)\$(_FSharpBuildTargetFramework)</_FSharpBuildBinPath>
 
     <FSharpBuildAssemblyFile>$(_FSharpBuildBinPath)\FSharp.Build.dll</FSharpBuildAssemblyFile>

diff --git a/README.md b/README.md
@@ -5,7 +5,7 @@
 
 You're invited to contribute to future releases of the F# compiler, core library, and tools. Development of this repository can be done on any OS supported by [.NET](https://dotnet.microsoft.com/).
 
-You will also need the latest .NET 7 SDK installed from [here](https://dotnet.microsoft.com/download/dotnet/7.0).
+You will also need .NET SDK installed from [here](https://dotnet.microsoft.com/download/dotnet), exact version can be found in the global.json file in the root of the repository.
 
 ## Contributing
 

diff --git a/buildtools/AssemblyCheck/AssemblyCheck.fsproj b/buildtools/AssemblyCheck/AssemblyCheck.fsproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>$(FSharpNetCoreProductTargetFramework)</TargetFramework>
     <DisableImplicitFSharpCoreReference>true</DisableImplicitFSharpCoreReference>
     <UseAppHost Condition="'$(DotNetBuildFromSource)' == 'true'">false</UseAppHost>
   </PropertyGroup>

diff --git a/buildtools/checkpackages/FSharp.Compiler.Service_notshipped.fsproj b/buildtools/checkpackages/FSharp.Compiler.Service_notshipped.fsproj
@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <Import Project="$(MSBuildProjectDirectory)\..\..\eng\Versions.props" />
- 
+
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>$(FSharpNetCoreProductTargetFramework)</TargetFramework>
     <DisableImplicitFSharpCoreReference>true</DisableImplicitFSharpCoreReference>
     <CachePath>$(MSBuildProjectDirectory)\..\..\artifacts\tmp\$([System.Guid]::NewGuid())</CachePath>
     <OutputPath>$(CachePath)\bin</OutputPath>

diff --git a/buildtools/fslex/fslex.fsproj b/buildtools/fslex/fslex.fsproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>$(FSharpNetCoreProductTargetFramework)</TargetFramework>
     <DisableImplicitFSharpCoreReference>true</DisableImplicitFSharpCoreReference>
     <UseAppHost Condition="'$(DotNetBuildFromSource)' == 'true'">false</UseAppHost>
     <RollForward Condition="'$(BUILDING_USING_DOTNET)' == 'true'">LatestMajor</RollForward>

diff --git a/buildtools/fsyacc/fsyacc.fsproj b/buildtools/fsyacc/fsyacc.fsproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>$(FSharpNetCoreProductTargetFramework)</TargetFramework>
     <DisableImplicitFSharpCoreReference>true</DisableImplicitFSharpCoreReference>
     <UseAppHost Condition="'$(DotNetBuildFromSource)' == 'true'">false</UseAppHost>
     <RollForward Condition="'$(BUILDING_USING_DOTNET)' == 'true'">LatestMajor</RollForward>

diff --git a/docs/release-notes/.FSharp.Compiler.Service/8.0.202.md b/docs/release-notes/.FSharp.Compiler.Service/8.0.202.md
@@ -0,0 +1,3 @@
+### Fixed
+
+`nameof Module` expressions and patterns are processed to link files in `--test:GraphBasedChecking`. ([PR #16570](https://github.com/dotnet/fsharp/pull/16570), [PR #16747](https://github.com/dotnet/fsharp/pull/16747))
diff --git a/docs/release-notes/.FSharp.Compiler.Service/8.0.300.md b/docs/release-notes/.FSharp.Compiler.Service/8.0.300.md
@@ -2,7 +2,7 @@
 
 * Fix missing warning for recursive calls in list comprehensions. ([PR #16652](https://github.com/dotnet/fsharp/pull/16652))
 * Code generated files with > 64K methods and generated symbols crash when loaded. Use infered sequence points for debugging. ([Issue #16399](https://github.com/dotnet/fsharp/issues/16399), [#PR 16514](https://github.com/dotnet/fsharp/pull/16514))
-* `nameof Module` expressions and patterns are processed to link files in `--test:GraphBasedChecking`. ([PR #16550](https://github.com/dotnet/fsharp/pull/16550))
+* `nameof Module` expressions and patterns are processed to link files in `--test:GraphBasedChecking`. ([PR #16550](https://github.com/dotnet/fsharp/pull/16550), [PR #16743](https://github.com/dotnet/fsharp/pull/16743))
 * Graph Based Checking doesn't throw on invalid parsed input so it can be used for IDE scenarios ([PR #16575](https://github.com/dotnet/fsharp/pull/16575), [PR #16588](https://github.com/dotnet/fsharp/pull/16588), [PR #16643](https://github.com/dotnet/fsharp/pull/16643))
 * Various parenthesization API fixes. ([PR #16578](https://github.com/dotnet/fsharp/pull/16578), [PR #16666](https://github.com/dotnet/fsharp/pull/16666))
 * Keep parens for problematic exprs (`if`, `match`, etc.) in `$"{(…):N0}"`, `$"{(…),-3}"`, etc. ([PR #16578](https://github.com/dotnet/fsharp/pull/16578))
@@ -11,6 +11,7 @@
 * `[<CliEvent>]` member should not produce property symbol. ([Issue #16640](https://github.com/dotnet/fsharp/issues/16640), [PR #16658](https://github.com/dotnet/fsharp/pull/16658))
 * Fix discriminated union initialization. ([#PR 16661](https://github.com/dotnet/fsharp/pull/16661))
 * Allow calling method with both Optional and ParamArray. ([#PR 16688](https://github.com/dotnet/fsharp/pull/16688), [suggestions #1120](https://github.com/fsharp/fslang-suggestions/issues/1120))
+* Enforce AttributeTargets on let values and functions. ([PR #16692](https://github.com/dotnet/fsharp/pull/16692))
 
 ### Added
 
@@ -29,3 +30,4 @@
 * Reduce allocations in compiler checking via `ValueOption` usage ([PR #16323](https://github.com/dotnet/fsharp/pull/16323), [PR #16567](https://github.com/dotnet/fsharp/pull/16567))
 * Reverted [#16348](https://github.com/dotnet/fsharp/pull/16348) `ThreadStatic` `CancellationToken` changes to improve test stability and prevent potential unwanted cancellations. ([PR #16536](https://github.com/dotnet/fsharp/pull/16536))
 * Refactored parenthesization API. ([PR #16461])(https://github.com/dotnet/fsharp/pull/16461))
+* Optimize some interpolated strings by lowering to string concatenation. ([PR #16556](https://github.com/dotnet/fsharp/pull/16556))
diff --git a/docs/release-notes/.Language/preview.md b/docs/release-notes/.Language/preview.md
@@ -8,3 +8,8 @@
 ### Fixed
 
 * Allow extension methods without type attribute work for types from imported assemblies. ([PR #16368](https://github.com/dotnet/fsharp/pull/16368))
+* Enforce AttributeTargets on let values and functions. ([PR #16692](https://github.com/dotnet/fsharp/pull/16692))
+
+### Changed
+
+* Lower interpolated strings to string concatenation. ([PR #16556](https://github.com/dotnet/fsharp/pull/16556))
diff --git a/docs/release-notes/FSharp.Core.fsx b/docs/release-notes/FSharp.Core.fsx
@@ -1,4 +1,4 @@
-(** ---
+(** ---
 category: Release Notes
 categoryindex: 600
 index: 3
@@ -14,7 +14,7 @@ open System.IO
 open Markdig
 open Common
 
-let path = Path.Combine(__SOURCE_DIRECTORY__, ".FSharp.Compiler.Service")
+let path = Path.Combine(__SOURCE_DIRECTORY__, ".FSharp.Core")
 let nugetPackage = "FSharp.Core"
 let availableNuGetVersions = getAvailableNuGetVersions nugetPackage
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,3 @@
		### Fixed

		`nameof Module` expressions and patterns are processed to link files in `--test:GraphBasedChecking`. ([PR #16570](https://github.com/dotnet/fsharp/pull/16570), [PR #16747](https://github.com/dotnet/fsharp/pull/16747))