dotnet · Apr 4, 2021 · Mar 23, 2021 · Mar 23, 2021 · Mar 23, 2021 · Mar 23, 2021
diff --git a/Compilers.sln b/Compilers.sln
@@ -168,7 +168,7 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CodeStyleConfigFileGenerato
 EndProject
 Project("{D954291E-2A0B-460D-934E-DC6B0785DB48}") = "Microsoft.CodeAnalysis.Collections", "src\Dependencies\Collections\Microsoft.CodeAnalysis.Collections.shproj", "{E919DD77-34F8-4F57-8058-4D3FF4C2B241}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Rebuild", "src\Compilers\Core\Rebuild\Rebuild.csproj", "{321F9FED-AACC-42CB-93E5-541D79E099E8}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.Rebuild", "src\Compilers\Core\Rebuild\Microsoft.CodeAnalysis.Rebuild.csproj", "{321F9FED-AACC-42CB-93E5-541D79E099E8}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.Rebuild.UnitTests", "src\Compilers\Core\RebuildTest\Microsoft.CodeAnalysis.Rebuild.UnitTests.csproj", "{FDBFBB64-5980-41C2-9E3E-FB8E2F700A5C}"
 EndProject

diff --git a/Compilers.slnf b/Compilers.slnf
@@ -31,7 +31,7 @@
       "src\\Compilers\\Core\\MSBuildTask\\Microsoft.Build.Tasks.CodeAnalysis.csproj",
       "src\\Compilers\\Core\\Portable\\Microsoft.CodeAnalysis.csproj",
       "src\\Compilers\\Core\\RebuildTest\\Microsoft.CodeAnalysis.Rebuild.UnitTests.csproj",
-      "src\\Compilers\\Core\\Rebuild\\Rebuild.csproj",
+      "src\\Compilers\\Core\\Rebuild\\Microsoft.CodeAnalysis.Rebuild.csproj",
       "src\\Compilers\\Extension\\Roslyn.Compilers.Extension.csproj",
       "src\\Compilers\\Server\\VBCSCompilerTests\\VBCSCompiler.UnitTests.csproj",
       "src\\Compilers\\Server\\VBCSCompiler\\VBCSCompiler.csproj",

diff --git a/Roslyn.sln b/Roslyn.sln
@@ -483,7 +483,7 @@ Project("{D954291E-2A0B-460D-934E-DC6B0785DB48}") = "Microsoft.CodeAnalysis.Coll
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.Collections.Package", "src\Dependencies\Collections\Microsoft.CodeAnalysis.Collections.Package.csproj", "{0C2E1633-1462-4712-88F4-A0C945BAD3A8}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Rebuild", "src\Compilers\Core\Rebuild\Rebuild.csproj", "{B7D29559-4360-434A-B9B9-2C0612287999}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.Rebuild", "src\Compilers\Core\Rebuild\Microsoft.CodeAnalysis.Rebuild.csproj", "{B7D29559-4360-434A-B9B9-2C0612287999}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.Rebuild.UnitTests", "src\Compilers\Core\RebuildTest\Microsoft.CodeAnalysis.Rebuild.UnitTests.csproj", "{21B49277-E55A-45EF-8818-744BCD6CB732}"
 EndProject

diff --git a/azure-pipelines-official.yml b/azure-pipelines-official.yml
@@ -48,19 +48,19 @@ stages:
   - job: OfficialBuild
     displayName: Official Build
     timeoutInMinutes: 360
-    # Conditionally set build pool so we can share this YAML when building with different pipeline (devdiv vs dnceng) 
-    pool:      
+    # Conditionally set build pool so we can share this YAML when building with different pipeline (devdiv vs dnceng)
+    pool:
       ${{ if eq(variables['System.TeamProject'], 'DevDiv') }}:
         name: VSEngSS-MicroBuild2017
-        demands: 
+        demands:
         - msbuild
         - visualstudio
         - DotNetFramework
       ${{ if eq(variables['System.TeamProject'], 'internal') }}:
         name: NetCoreInternal-Pool
         queue: BuildPool.Windows.10.Amd64.VS2019.Pre
 
-    steps:        
+    steps:
     # Make sure our two pipelines generate builds with distinct build numbers to avoid confliction.
     # i.e. DevDiv builds will have even rev# whereas dnceng builds will be odd.
     - task: PowerShell@2
@@ -82,7 +82,7 @@ stages:
         type: 'Build'
         tags: 'OfficialBuild'
       condition: and(succeeded(), endsWith(variables['SourceBranchName'], '-vs-deps'), eq(variables['PRNumber'], 'default'))
-          
+
     - task: tagBuildOrRelease@0
       displayName: Tag PR validation build
       inputs:
@@ -152,13 +152,13 @@ stages:
       displayName: Build
       inputs:
         filePath: eng/build.ps1
-        arguments: -ci 
+        arguments: -ci
                    -restore
                    -build
                    -pack
                    -sign
                    -publish
-                   -binaryLog 
+                   -binaryLog
                    -configuration $(BuildConfiguration)
                    -officialBuildId $(Build.BuildNumber)
                    -officialSkipTests $(SkipTests)
@@ -249,7 +249,7 @@ stages:
 
     # Publish insertion packages to CoreXT store.
     - task: NuGetCommand@2
-      displayName: Publish CoreXT Packages 
+      displayName: Publish CoreXT Packages
       inputs:
         command: push
         packagesToPush: '$(Build.SourcesDirectory)\artifacts\VSSetup\$(BuildConfiguration)\DevDivPackages\**\*.nupkg'
@@ -270,7 +270,7 @@ stages:
         ArtifactName: 'VSSetup'
       condition: succeeded()
 
-    # Publish our NuPkgs as an artifact. The name of this artifact must be PackageArtifacts as the 
+    # Publish our NuPkgs as an artifact. The name of this artifact must be PackageArtifacts as the
     # arcade templates depend on the name.
     - task: PublishBuildArtifacts@1
       displayName: Publish Artifact Packages
@@ -295,7 +295,7 @@ stages:
   - template: /eng/common/templates/job/publish-build-assets.yml
     parameters:
       publishUsingPipelines: true
-      dependsOn:	
+      dependsOn:
         - OfficialBuild
       ${{ if eq(variables['System.TeamProject'], 'DevDiv') }}:
         queue:
@@ -304,7 +304,7 @@ stages:
         pool:
           vmImage: vs2017-win2016
 
-# We need to skip post-build stages for PR validation build, but it can only be identified by 
+# We need to skip post-build stages for PR validation build, but it can only be identified by
 # the runtime variable 'PRNumber', thus this dummy stage. Also the dummy job is required
 # otherwise AzDO would just repeat jobs from previous stage.
 - stage: SetValidateDependency
@@ -324,8 +324,8 @@ stages:
       # https://github.com/dotnet/arcade/issues/2871 is resolved.
       enableSymbolValidation: false
       enableSourceLinkValidation: false
-      # It's important that post-build stages are depends on 'SetValidateDependency' stage instead of 'build', 
-      # since we don't want to publish validation build. 
+      # It's important that post-build stages are depends on 'SetValidateDependency' stage instead of 'build',
+      # since we don't want to publish validation build.
       validateDependsOn:
         - SetValidateDependency
       dependsOn:

diff --git a/docs/Language Feature Status.md b/docs/Language Feature Status.md
@@ -12,9 +12,11 @@ efforts behind them.
 | ------- | ------ | ----- | ---------- | -------- | --------- |
 | [Record structs](https://github.com/dotnet/csharplang/issues/4334) | [record-structs](https://github.com/dotnet/roslyn/tree/features/record-structs) | [In Progress](https://github.com/dotnet/roslyn/issues/51199) | [jcouv](https://github.com/jcouv) | [AlekseyTs](https://github.com/AlekseyTs), [RikkiGibson](https://github.com/RikkiGibson) | [jcouv](https://github.com/jcouv) |
 | [Global Using Directive](https://github.com/dotnet/csharplang/issues/3428) | [GlobalUsingDirective](https://github.com/dotnet/roslyn/tree/features/GlobalUsingDirective) | [In Progress](https://github.com/dotnet/roslyn/issues/51307) | [AlekseyTs](https://github.com/AlekseyTs) | [333fred](https://github.com/333fred), [cston](https://github.com/cston) | [AlekseyTs](https://github.com/AlekseyTs) |
+| [Static Abstract Members In Interfaces](https://github.com/dotnet/csharplang/issues/4436) | [StaticAbstractMembersInInterfaces](https://github.com/dotnet/roslyn/tree/features/StaticAbstractMembersInInterfaces) | [In Progress](https://github.com/dotnet/roslyn/issues/52221) | [AlekseyTs](https://github.com/AlekseyTs) | [333fred](https://github.com/333fred), [RikkiGibson](https://github.com/RikkiGibson) | [MadsTorgersen](https://github.com/MadsTorgersen) |
 | [File-scoped namespace](https://github.com/dotnet/csharplang/issues/137) | [FileScopedNamespaces](https://github.com/dotnet/roslyn/tree/features/FileScopedNamespaces) | In Progress | [chsienki](https://github.com/chsienki) | [cston](https://github.com/cston), [RikkiGibson](https://github.com/RikkiGibson) | [CyrusNajmabadi](https://github.com/CyrusNajmabadi) |
 | [Interpolated string improvements](https://github.com/dotnet/csharplang/issues/4487) | [interpolated-string](https://github.com/dotnet/roslyn/tree/features/interpolated-string) | [In Progress](https://github.com/dotnet/roslyn/issues/51499) | [333fred](https://github.com/333fred) | [AlekseyTs](https://github.com/AlekseyTs), [chsienki](https://github.com/chsienki) | [jaredpar](https://github.com/jaredpar) |
-| [Parameterless struct constructors](https://github.com/dotnet/csharplang/issues/99) | TBD | In Progress | [cston](https://github.com/cston) | [jcouv](https://github.com/jcouv), [333fred](https://github.com/333fred) | [jcouv](https://github.com/jouv) |
+| [Parameterless struct constructors](https://github.com/dotnet/csharplang/issues/99) | [struct-ctors](https://github.com/dotnet/roslyn/tree/features/struct-ctors) | [In Progress](https://github.com/dotnet/roslyn/issues/51698) | [cston](https://github.com/cston) | [jcouv](https://github.com/jcouv), [333fred](https://github.com/333fred) | [jcouv](https://github.com/jouv) |
+| [Lambda improvements](https://github.com/dotnet/csharplang/blob/main/proposals/lambda-improvements.md) | [lambdas](https://github.com/dotnet/roslyn/tree/features/lambdas) | [In Progress](https://github.com/dotnet/roslyn/issues/52192) | [cston](https://github.com/cston) | [333fred](https://github.com/333fred), [jcouv](https://github.com/jcouv) | [jaredpar](https://github.com/jaredpar) |
 | [nameof(parameter)](https://github.com/dotnet/csharplang/issues/373) | main | [In Progress](https://github.com/dotnet/roslyn/issues/40524) | [jcouv](https://github.com/jcouv) | TBD | [jcouv](https://github.com/jcouv) |
 | [Improved Definite Assignment](https://github.com/dotnet/csharplang/issues/4465) | [improved-definite-assignment](https://github.com/dotnet/roslyn/tree/features/improved-definite-assignment) | [In Progress](https://github.com/dotnet/roslyn/issues/51463) | [RikkiGibson](https://github.com/RikkiGibson) | [jcouv](https://github.com/jcouv) | [jaredpar](https://github.com/jaredpar) |
 | [Relax ordering of `ref` and `partial` modifiers](https://github.com/dotnet/csharplang/issues/946) | [ref-partial](https://github.com/dotnet/roslyn/tree/features/ref-partial) | In Progress | [alrz](https://github.com/alrz) | [gafter](https://github.com/gafter) | [jcouv](https://github.com/jcouv) |

diff --git a/docs/compilers/Deterministic Inputs.md b/docs/compilers/Deterministic Inputs.md
@@ -1,13 +1,12 @@
 Deterministic Inputs
 ====================
 
-We are aiming to make the compilers ultimately deterministic (https://github.com/dotnet/roslyn/issues/372). What that means is that the "same inputs" will cause the compilers to produce the "same outputs". 
+The C# and VB compilers are fully deterministic when the `/deterministic` option is specified (this is the default in the .NET SDK). This means that the "same inputs" will cause the compilers to produce the "same outputs" byte for byte. 
 
 The following are considered inputs to the compiler for the purpose of determinism:
 
-- The sequence of command-line parameters
-- The contents of the compiler's `.rsp` response file.
-- The precise version of the compiler used, and its referenced assemblies
+- The sequence of command-line parameters (order is important)
+- The precise version of the compiler used and the files included in its deployment: reference assemblies, rsp, etc ...
 - Current full directory path (you can reduce this to a relative path; see https://github.com/dotnet/roslyn/issues/949)
 - (Binary) contents of all files explicitly passed to the compiler, directly or indirectly, including
   - source files
@@ -17,15 +16,17 @@ The following are considered inputs to the compiler for the purpose of determini
   - the strong name key file
   - `@` response files
   - Analyzers
+  - Generators
   - Rulesets
-  - "additional files" that may be used by analyzers
-- The current culture (for the language in which diagnostics and exception messages are produced).
+  - "additional files" that may be used by analyzers and generators
+- The current culture if `/preferreduilang` is not specified (for the language in which diagnostics and exception messages are produced).
 - The current OS code page if `/codepage` is not specified and any of the input source files do not have BOM and are not UTF-8 encoded.
 - The existence, non-existence, and contents of files on the compiler's search paths (specified, e.g. by `/lib` or `/recurse`)
 - The CLR platform on which the compiler is run:
   - The result of `double` arithmetic performed for constant-folding may use excess precision on some platforms.
   - The compiler uses Unicode tables provided by the platform.
 - The version of the zlib library that the CLR uses to implement compression (when `/embed` or `/debug:embedded` is used).
-- The value of `%LIBPATH%`, as it can affect analyzer dependency loading.
+- The value of `%LIBPATH%`, as it can affect reference discovery if not fully qualified and how the runtime handles analyzer / generator dependency loading.
+- The full path of source files although `/pathmap` can be used to normalize this between compiles of the same code in different root directories.
 
 At the moment the compiler also depends on the time of day and random numbers for GUIDs, so it is not deterministic unless you specify `/deterministic`.
diff --git a/docs/wiki/Manual-Testing.md b/docs/wiki/Manual-Testing.md
@@ -66,7 +66,7 @@ When doing a test pass, copy this page and consider using these status indicator
 | **Typing** | :fast_forward: **General Typing**<br />- Type and paste new constructs<br />- Nothing interferes with verbatim typing | | | |
 | | :mag: :fast_forward: **Completion**<br />- Typing new keyword/construct names<br />- Dotting off of new constructs<br />- Matching part of the identifier is highlighted (including word prefix matches) [Visual Studio 2015 Update 1]<br />- Target type preselection [Visual Studio 2017]<br />IntelliSense filtering [Visual Studio 2017] | | | |
 | | :fast_forward: **Formatting** <br />- Spacing in and around new constructs<br />- Spacing options<br />- Format Document command<br /> `Tools > Options` settings should be respected | | | |
-| | :fast_forward: **Automatic Brace Completion** (*C# only*) <br />- Auto-insert close brace<br />- Shift+Enter commit of IntelliSense and any pending brace completion sessions (Known issue: https://github.com/dotnet/roslyn/issues/18065) | | | N/A |
+| | :fast_forward: **Automatic Brace Completion** (*C# only*) <br />- Auto-insert close brace<br />- Shift+Enter commit of IntelliSense and any pending brace completion sessions (Currently C# only: https://github.com/dotnet/roslyn/issues/18065) | | | N/A |
 | | :fast_forward: **Indentation** <br />- Typing `Enter` in an unfinished statement indents the next line | | | |
 | **Navigating** | :mag: :fast_forward: **Go To Definition** <br />- F12 from callsites to definition<br />- Ctrl+click [Visual Studio 2017 version 15.4] | | | |
 | | :fast_forward: **Go To Implementation** <br />- Ctrl+F12 to jump from virtual members to their implementations<br />- Jump from inheritable types to their implementations | | | N/A |

diff --git a/eng/Versions.props b/eng/Versions.props
@@ -8,7 +8,7 @@
     <MajorVersion>3</MajorVersion>
     <MinorVersion>10</MinorVersion>
     <PatchVersion>0</PatchVersion>
-    <PreReleaseVersionLabel>2</PreReleaseVersionLabel>
+    <PreReleaseVersionLabel>3</PreReleaseVersionLabel>
     <VersionPrefix>$(MajorVersion).$(MinorVersion).$(PatchVersion)</VersionPrefix>
     <!--
       By default the assembly version in official builds is "$(MajorVersion).$(MinorVersion).0.0".
@@ -34,7 +34,7 @@
     <VisualStudioEditorPackagesVersion>16.9.220</VisualStudioEditorPackagesVersion>
     <ILAsmPackageVersion>5.0.0-alpha1.19409.1</ILAsmPackageVersion>
     <ILDAsmPackageVersion>5.0.0-preview.1.20112.8</ILDAsmPackageVersion>
-    <MicrosoftVisualStudioLanguageServerProtocolPackagesVersion>16.10.139</MicrosoftVisualStudioLanguageServerProtocolPackagesVersion>
+    <MicrosoftVisualStudioLanguageServerProtocolPackagesVersion>16.10.161</MicrosoftVisualStudioLanguageServerProtocolPackagesVersion>
     <MicrosoftVisualStudioShellPackagesVersion>16.9.30921.310</MicrosoftVisualStudioShellPackagesVersion>
     <MicrosoftBuildPackagesVersion>16.5.0</MicrosoftBuildPackagesVersion>
     <!-- The version of Roslyn we build Source Generators against that are built in this
@@ -49,6 +49,7 @@
   <PropertyGroup>
     <BasicUndoVersion>0.9.3</BasicUndoVersion>
     <BenchmarkDotNetVersion>0.12.1</BenchmarkDotNetVersion>
+    <BenchmarkDotNetDiagnosticsWindowsVersion>0.12.1</BenchmarkDotNetDiagnosticsWindowsVersion>
     <DiffPlexVersion>1.4.4</DiffPlexVersion>
     <EnvDTEVersion>$(MicrosoftVisualStudioShellPackagesVersion)</EnvDTEVersion>
     <EnvDTE80Version>$(MicrosoftVisualStudioShellPackagesVersion)</EnvDTE80Version>