diff --git a/src/SourceBuild/patches/roslyn-analyzers/0002-Fix-ImmutableCollection-analyzer-invalid-cast.patch b/src/SourceBuild/patches/roslyn-analyzers/0002-Fix-ImmutableCollection-analyzer-invalid-cast.patch
new file mode 100644
index 000000000000..f60ae44b923b
--- /dev/null
+++ b/src/SourceBuild/patches/roslyn-analyzers/0002-Fix-ImmutableCollection-analyzer-invalid-cast.patch
@@ -0,0 +1,26 @@
+From 6f4d85b6ffd64190045ab29ba2903628788b8dc5 Mon Sep 17 00:00:00 2001
+From: Matt Thalman <mthalman@microsoft.com>
+Date: Tue, 14 Feb 2023 10:59:29 -0600
+Subject: [PATCH] Fix ImmutableCollection analyzer invalid cast
+
+Backport: https://github.com/dotnet/roslyn-analyzers/pull/6476
+---
+ ...tCallToImmutableCollectionOnAnImmutableCollectionValue.cs | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/src/NetAnalyzers/Core/Microsoft.NetCore.Analyzers/ImmutableCollections/DoNotCallToImmutableCollectionOnAnImmutableCollectionValue.cs b/src/NetAnalyzers/Core/Microsoft.NetCore.Analyzers/ImmutableCollections/DoNotCallToImmutableCollectionOnAnImmutableCollectionValue.cs
+index 9e6cc03404..ee1151a1fa 100644
+--- a/src/NetAnalyzers/Core/Microsoft.NetCore.Analyzers/ImmutableCollections/DoNotCallToImmutableCollectionOnAnImmutableCollectionValue.cs
++++ b/src/NetAnalyzers/Core/Microsoft.NetCore.Analyzers/ImmutableCollections/DoNotCallToImmutableCollectionOnAnImmutableCollectionValue.cs
+@@ -91,9 +91,8 @@ public override void Initialize(AnalysisContext context)
+                         return;
+                     }
+ 
+-                    var receiverType = (INamedTypeSymbol?)invocation.GetReceiverType(operationContext.Compilation, beforeConversion: true, cancellationToken: operationContext.CancellationToken);
+-                    if (receiverType != null &&
+-                        receiverType.DerivesFromOrImplementsAnyConstructionOf(immutableCollectionType))
++                    if (invocation.GetReceiverType(operationContext.Compilation, beforeConversion: true, cancellationToken: operationContext.CancellationToken) is INamedTypeSymbol receiverType
++                        && receiverType.DerivesFromOrImplementsAnyConstructionOf(immutableCollectionType))
+                     {
+                         operationContext.ReportDiagnostic(
+                             invocation.CreateDiagnostic(
diff --git a/src/SourceBuild/patches/roslyn/0001-Remove-Roslyns-IdeBenchmarks-tool-from-being-source-.patch b/src/SourceBuild/patches/roslyn/0001-Remove-Roslyns-IdeBenchmarks-tool-from-being-source-.patch
new file mode 100644
index 000000000000..eb15c90f683a
--- /dev/null
+++ b/src/SourceBuild/patches/roslyn/0001-Remove-Roslyns-IdeBenchmarks-tool-from-being-source-.patch
@@ -0,0 +1,42 @@
+From 2bcb8ebb4f54950d08b7b8d2cc137879423ae9b0 Mon Sep 17 00:00:00 2001
+From: Matt Thalman <mthalman@microsoft.com>
+Date: Tue, 14 Feb 2023 10:55:15 -0600
+Subject: [PATCH] Remove Roslyn's IdeBenchmarks tool from being source-built
+
+Backport: https://github.com/dotnet/source-build/issues/1736
+---
+ Roslyn.sln | 7 -------
+ 1 file changed, 7 deletions(-)
+
+diff --git a/Roslyn.sln b/Roslyn.sln
+index 4070ee47d9..3764ff5772 100644
+--- a/Roslyn.sln
++++ b/Roslyn.sln
+@@ -386,8 +386,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.VisualStudio.Lang
+ EndProject
+ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.VisualStudio.LanguageServices.LiveShare.UnitTests", "src\VisualStudio\LiveShare\Test\Microsoft.VisualStudio.LanguageServices.LiveShare.UnitTests.csproj", "{CE7F7553-DB2D-4839-92E3-F042E4261B4E}"
+ EndProject
+-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "IdeBenchmarks", "src\Tools\IdeBenchmarks\IdeBenchmarks.csproj", "{FF38E9C9-7A25-44F0-B2C4-24C9BFD6A8F6}"
+-EndProject
+ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{157EA250-2F28-4948-A8F2-D58EAEA05DC8}"
+ 	ProjectSection(SolutionItems) = preProject
+ 		.editorconfig = .editorconfig
+@@ -1109,10 +1107,6 @@ Global
+ 		{CE7F7553-DB2D-4839-92E3-F042E4261B4E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ 		{CE7F7553-DB2D-4839-92E3-F042E4261B4E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ 		{CE7F7553-DB2D-4839-92E3-F042E4261B4E}.Release|Any CPU.Build.0 = Release|Any CPU
+-		{FF38E9C9-7A25-44F0-B2C4-24C9BFD6A8F6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+-		{FF38E9C9-7A25-44F0-B2C4-24C9BFD6A8F6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+-		{FF38E9C9-7A25-44F0-B2C4-24C9BFD6A8F6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+-		{FF38E9C9-7A25-44F0-B2C4-24C9BFD6A8F6}.Release|Any CPU.Build.0 = Release|Any CPU
+ 		{D55FB2BD-CC9E-454B-9654-94AF5D910BF7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ 		{D55FB2BD-CC9E-454B-9654-94AF5D910BF7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ 		{D55FB2BD-CC9E-454B-9654-94AF5D910BF7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+@@ -1451,7 +1445,6 @@ Global
+ 		{FC32EF16-31B1-47B3-B625-A80933CB3F29} = {8977A560-45C2-4EC2-A849-97335B382C74}
+ 		{453C8E28-81D4-431E-BFB0-F3D413346E51} = {8DBA5174-B0AA-4561-82B1-A46607697753}
+ 		{CE7F7553-DB2D-4839-92E3-F042E4261B4E} = {8DBA5174-B0AA-4561-82B1-A46607697753}
+-		{FF38E9C9-7A25-44F0-B2C4-24C9BFD6A8F6} = {FD0FAF5F-1DED-485C-99FA-84B97F3A8EEC}
+ 		{D55FB2BD-CC9E-454B-9654-94AF5D910BF7} = {FD0FAF5F-1DED-485C-99FA-84B97F3A8EEC}
+ 		{B9899CF1-E0EB-4599-9E24-6939A04B4979} = {3E5FE3DB-45F7-4D83-9097-8F05D3B3AEC6}
+ 		{D15BF03E-04ED-4BEE-A72B-7620F541F4E2} = {3E5FE3DB-45F7-4D83-9097-8F05D3B3AEC6}