dotnet · 333fred · Mar 1, 2022 · Dec 16, 2021 · Dec 17, 2021 · Dec 17, 2021
diff --git a/NuGet.config b/NuGet.config
@@ -8,6 +8,7 @@
     <add key="dotnet5" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5/nuget/v3/index.json" />
     <add key="dotnet6" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json" />
     <add key="dotnet7" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet7/nuget/v3/index.json" />
+    <add key="dotnet7-transport" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet7-transport/nuget/v3/index.json" />
     <add key="dotnet-public" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json" />
     <add key="nuget-build" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/nuget-build/nuget/v3/index.json" />
     <add key="vssdk" value="https://pkgs.dev.azure.com/azure-public/vside/_packaging/vssdk/nuget/v3/index.json" />

diff --git a/Roslyn.sln b/Roslyn.sln
@@ -220,20 +220,14 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.Build.Tasks.CodeA
 EndProject
 Project("{D954291E-2A0B-460D-934E-DC6B0785DB48}") = "BasicResultProvider", "src\ExpressionEvaluator\VisualBasic\Source\ResultProvider\BasicResultProvider.shproj", "{3140FE61-0856-4367-9AA3-8081B9A80E35}"
 EndProject
-Project("{778DAE3C-4631-46EA-AA77-85C1314464D9}") = "BasicResultProvider.NetFX20", "src\ExpressionEvaluator\VisualBasic\Source\ResultProvider\NetFX20\BasicResultProvider.NetFX20.vbproj", "{76242A2D-2600-49DD-8C15-FEA07ECB1842}"
-EndProject
 Project("{778DAE3C-4631-46EA-AA77-85C1314464D9}") = "Microsoft.CodeAnalysis.VisualBasic.ResultProvider", "src\ExpressionEvaluator\VisualBasic\Source\ResultProvider\Portable\Microsoft.CodeAnalysis.VisualBasic.ResultProvider.vbproj", "{76242A2D-2600-49DD-8C15-FEA07ECB1843}"
 EndProject
 Project("{D954291E-2A0B-460D-934E-DC6B0785DB48}") = "CSharpResultProvider", "src\ExpressionEvaluator\CSharp\Source\ResultProvider\CSharpResultProvider.shproj", "{3140FE61-0856-4367-9AA3-8081B9A80E36}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CSharpResultProvider.NetFX20", "src\ExpressionEvaluator\CSharp\Source\ResultProvider\NetFX20\CSharpResultProvider.NetFX20.csproj", "{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D3}"
-EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.CSharp.ResultProvider", "src\ExpressionEvaluator\CSharp\Source\ResultProvider\Portable\Microsoft.CodeAnalysis.CSharp.ResultProvider.csproj", "{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D4}"
 EndProject
 Project("{D954291E-2A0B-460D-934E-DC6B0785DB48}") = "ResultProvider", "src\ExpressionEvaluator\Core\Source\ResultProvider\ResultProvider.shproj", "{BB3CA047-5D00-48D4-B7D3-233C1265C065}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ResultProvider.NetFX20", "src\ExpressionEvaluator\Core\Source\ResultProvider\NetFX20\ResultProvider.NetFX20.csproj", "{BEDC5A4A-809E-4017-9CFD-6C8D4E1847F0}"
-EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.CodeAnalysis.ResultProvider", "src\ExpressionEvaluator\Core\Source\ResultProvider\Portable\Microsoft.CodeAnalysis.ResultProvider.csproj", "{FA0E905D-EC46-466D-B7B2-3B5557F9428C}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "vbc", "src\Compilers\VisualBasic\vbc\vbc.csproj", "{E58EE9D7-1239-4961-A0C1-F9EC3952C4C1}"
@@ -540,7 +534,6 @@ Global
 		src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\WorkspaceExtensions.projitems*{5ff1e493-69cc-4d0b-83f2-039f469a04e1}*SharedItemsImports = 5
 		src\ExpressionEvaluator\CSharp\Source\ResultProvider\CSharpResultProvider.projitems*{60db272a-21c9-4e8d-9803-ff4e132392c8}*SharedItemsImports = 5
 		src\Workspaces\SharedUtilitiesAndExtensions\Compiler\CSharp\CSharpCompilerExtensions.projitems*{699fea05-aea7-403d-827e-53cf4e826955}*SharedItemsImports = 13
-		src\ExpressionEvaluator\VisualBasic\Source\ResultProvider\BasicResultProvider.projitems*{76242a2d-2600-49dd-8c15-fea07ecb1842}*SharedItemsImports = 5
 		src\ExpressionEvaluator\VisualBasic\Source\ResultProvider\BasicResultProvider.projitems*{76242a2d-2600-49dd-8c15-fea07ecb1843}*SharedItemsImports = 5
 		src\Analyzers\Core\Analyzers\Analyzers.projitems*{76e96966-4780-4040-8197-bde2879516f4}*SharedItemsImports = 13
 		src\Compilers\Core\CommandLine\CommandLine.projitems*{7ad4fe65-9a30-41a6-8004-aa8f89bcb7f3}*SharedItemsImports = 5
@@ -562,8 +555,6 @@ Global
 		src\Compilers\Core\CommandLine\CommandLine.projitems*{ad6f474e-e6d4-4217-91f3-b7af1be31ccc}*SharedItemsImports = 13
 		src\Compilers\CSharp\CSharpAnalyzerDriver\CSharpAnalyzerDriver.projitems*{b501a547-c911-4a05-ac6e-274a50dff30e}*SharedItemsImports = 5
 		src\ExpressionEvaluator\Core\Source\ResultProvider\ResultProvider.projitems*{bb3ca047-5d00-48d4-b7d3-233c1265c065}*SharedItemsImports = 13
-		src\ExpressionEvaluator\Core\Source\ResultProvider\ResultProvider.projitems*{bedc5a4a-809e-4017-9cfd-6c8d4e1847f0}*SharedItemsImports = 5
-		src\ExpressionEvaluator\CSharp\Source\ResultProvider\CSharpResultProvider.projitems*{bf9dac1e-3a5e-4dc3-bb44-9a64e0d4e9d3}*SharedItemsImports = 5
 		src\ExpressionEvaluator\CSharp\Source\ResultProvider\CSharpResultProvider.projitems*{bf9dac1e-3a5e-4dc3-bb44-9a64e0d4e9d4}*SharedItemsImports = 5
 		src\Dependencies\PooledObjects\Microsoft.CodeAnalysis.PooledObjects.projitems*{c1930979-c824-496b-a630-70f5369a636f}*SharedItemsImports = 13
 		src\Workspaces\SharedUtilitiesAndExtensions\Compiler\VisualBasic\VisualBasicCompilerExtensions.projitems*{cec0dce7-8d52-45c3-9295-fc7b16bd2451}*SharedItemsImports = 13
@@ -912,26 +903,14 @@ Global
 		{1DFEA9C5-973C-4179-9B1B-0F32288E1EF2}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1DFEA9C5-973C-4179-9B1B-0F32288E1EF2}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{1DFEA9C5-973C-4179-9B1B-0F32288E1EF2}.Release|Any CPU.Build.0 = Release|Any CPU
-		{76242A2D-2600-49DD-8C15-FEA07ECB1842}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{76242A2D-2600-49DD-8C15-FEA07ECB1842}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{76242A2D-2600-49DD-8C15-FEA07ECB1842}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{76242A2D-2600-49DD-8C15-FEA07ECB1842}.Release|Any CPU.Build.0 = Release|Any CPU
 		{76242A2D-2600-49DD-8C15-FEA07ECB1843}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{76242A2D-2600-49DD-8C15-FEA07ECB1843}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{76242A2D-2600-49DD-8C15-FEA07ECB1843}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{76242A2D-2600-49DD-8C15-FEA07ECB1843}.Release|Any CPU.Build.0 = Release|Any CPU
-		{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D3}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D3}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D3}.Release|Any CPU.Build.0 = Release|Any CPU
 		{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D4}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D4}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D4}.Release|Any CPU.Build.0 = Release|Any CPU
-		{BEDC5A4A-809E-4017-9CFD-6C8D4E1847F0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{BEDC5A4A-809E-4017-9CFD-6C8D4E1847F0}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{BEDC5A4A-809E-4017-9CFD-6C8D4E1847F0}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{BEDC5A4A-809E-4017-9CFD-6C8D4E1847F0}.Release|Any CPU.Build.0 = Release|Any CPU
 		{FA0E905D-EC46-466D-B7B2-3B5557F9428C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{FA0E905D-EC46-466D-B7B2-3B5557F9428C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{FA0E905D-EC46-466D-B7B2-3B5557F9428C}.Release|Any CPU.ActiveCfg = Release|Any CPU
@@ -1400,13 +1379,10 @@ Global
 		{FCFA8808-A1B6-48CC-A1EA-0B8CA8AEDA8E} = {32A48625-F0AD-419D-828B-A50BDABA38EA}
 		{1DFEA9C5-973C-4179-9B1B-0F32288E1EF2} = {A41D1B99-F489-4C43-BBDF-96D61B19A6B9}
 		{3140FE61-0856-4367-9AA3-8081B9A80E35} = {151F6994-AEB3-4B12-B746-2ACFF26C7BBB}
-		{76242A2D-2600-49DD-8C15-FEA07ECB1842} = {151F6994-AEB3-4B12-B746-2ACFF26C7BBB}
 		{76242A2D-2600-49DD-8C15-FEA07ECB1843} = {151F6994-AEB3-4B12-B746-2ACFF26C7BBB}
 		{3140FE61-0856-4367-9AA3-8081B9A80E36} = {913A4C08-898E-49C7-9692-0EF9DC56CF6E}
-		{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D3} = {913A4C08-898E-49C7-9692-0EF9DC56CF6E}
 		{BF9DAC1E-3A5E-4DC3-BB44-9A64E0D4E9D4} = {913A4C08-898E-49C7-9692-0EF9DC56CF6E}
 		{BB3CA047-5D00-48D4-B7D3-233C1265C065} = {998CAFE8-06E4-4683-A151-0F6AA4BFF6C6}
-		{BEDC5A4A-809E-4017-9CFD-6C8D4E1847F0} = {998CAFE8-06E4-4683-A151-0F6AA4BFF6C6}
 		{FA0E905D-EC46-466D-B7B2-3B5557F9428C} = {998CAFE8-06E4-4683-A151-0F6AA4BFF6C6}
 		{E58EE9D7-1239-4961-A0C1-F9EC3952C4C1} = {C65C6143-BED3-46E6-869E-9F0BE6E84C37}
 		{6FD1CC3E-6A99-4736-9B8D-757992DDE75D} = {38940C5F-97FD-4B2A-B2CD-C4E4EF601B05}

diff --git a/azure-pipelines-official.yml b/azure-pipelines-official.yml
@@ -180,6 +180,8 @@ stages:
                    /p:DotnetPublishUsingPipelines=true
                    /p:IgnoreIbcMergeErrors=true
       condition: succeeded()
+
+    - template: eng\common\templates\steps\generate-sbom.yml
 
     - task: PowerShell@2
       displayName: Publish Assets

diff --git a/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 6.md b/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 6.md
@@ -1,14 +1,15 @@
 ## This document lists known breaking changes in Roslyn in C# 10.0 which will be introduced with .NET 6.
 
-1. Beginning with C# 10.0, null suppression operator is no longer allowed in patterns.
+1. <a name="1"></a>Beginning with C# 10.0, null suppression operator is no longer allowed in patterns.
+
     ```csharp
     void M(object o)
     {
         if (o is null!) {} // error
     }
     ```
 
-2. In C# 10, lambda expressions and method groups with inferred type are implicitly convertible to `System.MulticastDelegate`, and bases classes and interfaces of `System.MulticastDelegate` including `object`,
+2. <a name="2"></a>In C# 10, lambda expressions and method groups with inferred type are implicitly convertible to `System.MulticastDelegate`, and bases classes and interfaces of `System.MulticastDelegate` including `object`,
 and lambda expressions and method groups are implicitly convertible to `System.Linq.Expressions.Expression` and `System.Linq.Expressions.LambdaExpression`.
 These are _function_type_conversions_.
 
@@ -92,7 +93,7 @@ These are _function_type_conversions_.
     }
     ```
 
-3. In C#10, a lambda expression with inferred type may contribute an argument type that affects overload resolution.
+3. <a name="3"></a>In C#10, a lambda expression with inferred type may contribute an argument type that affects overload resolution.
 
     ```csharp
     using System;
@@ -109,18 +110,38 @@ These are _function_type_conversions_.
     }
     ```
 
-4. In Visual Studio 17.1, `struct` type declarations with field initializers must include an explicitly declared constructor. Additionally, all fields must be definitely assigned in `struct` instance constructors that do not have a `: this()` initializer so any previously unassigned fields must be assigned from the added constructor or from field initializers.
+4. <a name="4"></a><a name="roslyn-58339"></a>In Visual Studio 17.0 servicing, an error is reported in a `record struct` with a primary constructor if an explicit constructor has a `this()` initializer that invokes the implicit parameterless constructor. See [roslyn#58339](https://github.com/dotnet/roslyn/pull/58339).
 
-    For instance, the following results in an error in 17.1:
+    For instance, the following results in an error:
     ```csharp
-    struct S
+    record struct R(int X, int Y)
+    {
+        // error CS8982: A constructor declared in a 'record struct' with parameter list must have a 'this'
+        // initializer that calls the primary constructor or an explicitly declared constructor.
+        public R(int x) : this() { X = x; Y = 0; }
+    }
+    ```
+
+    The error could be resolved by invoking the primary constructor (as below) from the `this()` initializer, or by declaring a parameterless constructor that invokes the primary constructor.
+    ```csharp
+    record struct R(int X, int Y)
     {
-        int X = 1; // error: struct with field initializers must include an explicitly declared constructor
+        public R(int x) : this(x, 0) { } // ok
+    }
+    ```
+
+5. <a name="5"></a><a name="roslyn-57925"></a>In Visual Studio 17.0 servicing, if a `struct` type declaration with no constructors includes initializers for some but not all fields, the compiler will report an error that all fields must be assigned. See [roslyn#57925](https://github.com/dotnet/roslyn/pull/57925).
+
+    For instance, the following results in an error:
+    ```csharp
+    struct S // error CS0171: Field 'S.Y' must be fully assigned before control is returned to the caller
+    {
+        int X = 1;
         int Y;
     }
     ```
 
-    The error could be resolved by adding a constructor and assigning the other field.
+    For compatibility with 17.1 (see [#6](#6)), the error should be resolved by adding a constructor and assigning the other field.
     ```csharp
     struct S
     {
@@ -129,3 +150,4 @@ These are _function_type_conversions_.
         public S() { Y = 0; } // ok
     }
     ```
+
diff --git a/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 7.md b/docs/compilers/CSharp/Compiler Breaking Changes - DotNet 7.md
@@ -1,6 +1,6 @@
 ## This document lists known breaking changes in Roslyn after .NET 6 all the way to .NET 7.
 
-1. In Visual Studio 17.1, the contextual keyword `var` cannot be used as an explicit lambda return type.
+1. <a name="1"></a>In Visual Studio 17.1, the contextual keyword `var` cannot be used as an explicit lambda return type.
 
     ```csharp
     using System;
@@ -13,7 +13,7 @@
     class var { }
     ```
 
-2. In Visual Studio 17.1, indexers that take an interpolated string handler and require the receiver as an input for the constructor cannot be used in an object initializer.
+2. <a name="2"></a>In Visual Studio 17.1, indexers that take an interpolated string handler and require the receiver as an input for the constructor cannot be used in an object initializer.
 
     ```cs
     using System.Runtime.CompilerServices;
@@ -35,7 +35,7 @@
     }
     ```
 
-3. In Visual Studio 17.1, `ref`/`ref readonly`/`in`/`out` are not allowed to be used on return/parameters of a method attributed with `UnmanagedCallersOnly`.  
+3. <a name="3"></a>In Visual Studio 17.1, `ref`/`ref readonly`/`in`/`out` are not allowed to be used on return/parameters of a method attributed with `UnmanagedCallersOnly`.  
 https://github.com/dotnet/roslyn/issues/57025
 
     ```cs
@@ -56,7 +56,7 @@ https://github.com/dotnet/roslyn/issues/57025
     static void M5(out int o) => throw null; // error CS8977: Cannot use 'ref', 'in', or 'out' in a method attributed with 'UnmanagedCallersOnly'.
     ```
 
-4. Beginning with C# 11.0, `Length` and `Count` properties on countable and indexable types
+4. <a name="4"></a>Beginning with C# 11.0, `Length` and `Count` properties on countable and indexable types
 are assumed to be non-negative for purpose of subsumption and exhaustiveness analysis of patterns and switches.
 Those types can be used with implicit Index indexer and list patterns.
 
@@ -67,7 +67,7 @@ Those types can be used with implicit Index indexer and list patterns.
     }
     ```
 
-5. Starting with Visual Studio 17.1, format specifiers in interpolated strings can not contain curly braces (either `{` or `}`). In previous versions `{{` was interpreted as an escaped `{` and `}}` was interpreted as an escaped `}` char in the format specifier. Now the first `}` char in a format specifier ends the interpolation, and any `{` char is an error.
+5.  <a name="5"></a>Starting with Visual Studio 17.1, format specifiers in interpolated strings can not contain curly braces (either `{` or `}`). In previous versions `{{` was interpreted as an escaped `{` and `}}` was interpreted as an escaped `}` char in the format specifier. Now the first `}` char in a format specifier ends the interpolation, and any `{` char is an error.
 https://github.com/dotnet/roslyn/issues/57750
 
     ```csharp
@@ -77,3 +77,24 @@ https://github.com/dotnet/roslyn/issues/57750
 
     //prints now: "{C}" - not "{X}}"
     ```
+
+6. <a name="6"></a><a name="roslyn-58581"></a>In Visual Studio 17.1, `struct` type declarations with field initializers must include an explicitly declared constructor. Additionally, all fields must be definitely assigned in `struct` instance constructors that do not have a `: this()` initializer so any previously unassigned fields must be assigned from the added constructor or from field initializers. See [csharplang#5552](https://github.com/dotnet/csharplang/issues/5552), [roslyn#58581](https://github.com/dotnet/roslyn/pull/58581).
+
+    For instance, the following results in an error in 17.1:
+    ```csharp
+    struct S
+    {
+        int X = 1; // error CS8983: A 'struct' with field initializers must include an explicitly declared constructor.
+        int Y;
+    }
+    ```
+
+    The error could be resolved by adding a constructor and assigning the other field.
+    ```csharp
+    struct S
+    {
+        int X = 1;
+        int Y;
+        public S() { Y = 0; } // ok
+    }
+    ```
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
@@ -6,25 +6,25 @@
       <Sha>7e80445ee82adbf9a8e6ae601ac5e239d982afaa</Sha>
       <SourceBuild RepoName="xliff-tasks" ManagedOnly="true" />
     </Dependency>
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build" Version="0.1.0-alpha.1.21616.4">
-      <Uri>https://github.com/dotnet/source-build</Uri>
-      <Sha>90bdf447e1b97605f109b34243ab8c9f215308e9</Sha>
-      <SourceBuild RepoName="source-build" ManagedOnly="true" />
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="7.0.0-alpha.1.22114.1">
+      <Uri>https://github.com/dotnet/source-build-externals</Uri>
+      <Sha>a28332454bd70964205fb18bf3d0a1146a228b25</Sha>
+      <SourceBuild RepoName="source-build-externals" ManagedOnly="true" />
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="7.0.0-beta.22080.1">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="7.0.0-beta.22122.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>4d6406fa2e84c8516a338694be3a4097e6e1f104</Sha>
+      <Sha>68a9b6dc9c0f375893fcdab74b7dd2538afb1c4b</Sha>
       <SourceBuild RepoName="arcade" ManagedOnly="true" />
     </Dependency>
     <Dependency Name="Microsoft.Net.Compilers.Toolset" Version="4.1.0-3.22075.3">
       <Uri>https://github.com/dotnet/roslyn</Uri>
       <Sha>592501cbb9c9394072a245c15b3458ff88155d85</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="7.0.0-beta.22080.1">
+    <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="7.0.0-beta.22122.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>4d6406fa2e84c8516a338694be3a4097e6e1f104</Sha>
+      <Sha>68a9b6dc9c0f375893fcdab74b7dd2538afb1c4b</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>