diff --git a/src/SourceBuild/tarball/content/repos/roslyn-analyzers.proj b/src/SourceBuild/tarball/content/repos/roslyn-analyzers.proj
index 3c7dc4453..3d7882a5b 100644
--- a/src/SourceBuild/tarball/content/repos/roslyn-analyzers.proj
+++ b/src/SourceBuild/tarball/content/repos/roslyn-analyzers.proj
@@ -2,12 +2,8 @@
-
- $(StandardSourceBuildArgs.Replace('/p:DotNetPackageVersionPropsPath="$(PackageVersionPropsPath)"', ''))
+ $(StandardSourceBuildArgs)
$(BuildCommandArgs) $(FlagParameterPrefix)warnAsError $(ArcadeFalseBoolBuildArg)
- $(BuildCommandArgs) /p:SourceBuildPackageVersionPropsPath="$(PackageVersionPropsPath)"
$(StandardSourceBuildCommand) $(BuildCommandArgs)
false
diff --git a/src/SourceBuild/tarball/patches/roslyn-analyzers/0001-Eliminate-pre-built-assets-during-source-build-for-r.patch b/src/SourceBuild/tarball/patches/roslyn-analyzers/0001-Eliminate-pre-built-assets-during-source-build-for-r.patch
new file mode 100644
index 000000000..953624bfd
--- /dev/null
+++ b/src/SourceBuild/tarball/patches/roslyn-analyzers/0001-Eliminate-pre-built-assets-during-source-build-for-r.patch
@@ -0,0 +1,211 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Eric Erhardt
+Date: Tue, 19 Oct 2021 11:12:25 -0500
+Subject: [PATCH] Eliminate pre-built assets during source-build for
+ roslyn-analyzers
+
+This is taking the approach used in previous versions of source-build: update the dependency versions of Microsoft.CodeAnalysis to the version currently being built by source-build. This is a short-term solution to get unblocked in the 6.0.0 timeframe. In the future, the previous Microsoft.CodeAnalysis versions will be available in SBRP.
+
+* Remove SourceBuildPackageVersionPropsPath at the top of Versions.props. The PVP from source-build will be imported after the repo's Versions.props
+* Workaround a naming collison with DocumentBasedFixAllProvider. The latest Roslyn has a class with the same name.
+* Remove hard-coded versions to Microsoft.CodeAnalysis in ResxSourceGenerator, Roslyn.Diagnostics.Analyzers, and GenerateDocumentationAndConfigFiles, so the latest gets picked up.
+* Exclude ReleaseNotesUtil from source-build since it brings in the 3.1 app host. This tool shouldn't be needed during source-build.
+* Disable BannedApiAnalyzers when in source-build. Other previously built code analysis packages are disabled already.
+
+Contributes to https://github.com/dotnet/source-build/issues/2420
+Contributes to https://github.com/dotnet/source-build/issues/2527
+---
+ eng/Versions.props | 14 --------------
+ src/Directory.Build.targets | 5 +++--
+ .../Core/MetaAnalyzers/Fixers/PreferIsKindFix.cs | 2 +-
+ ....CodeAnalysis.ResxSourceGenerator.CSharp.csproj | 1 -
+ ...Analysis.ResxSourceGenerator.VisualBasic.csproj | 1 -
+ ...crosoft.CodeAnalysis.ResxSourceGenerator.csproj | 1 -
+ .../DoNotDirectlyAwaitATask.Fixer.cs | 2 +-
+ .../Roslyn.Diagnostics.CSharp.Analyzers.csproj | 2 +-
+ .../Core/Roslyn.Diagnostics.Analyzers.csproj | 1 -
+ ...Roslyn.Diagnostics.VisualBasic.Analyzers.vbproj | 2 +-
+ .../GenerateDocumentationAndConfigFiles.csproj | 1 -
+ ...umentationAndConfigFilesForBrokenRuntime.csproj | 4 +---
+ src/Tools/ReleaseNotesUtil/ReleaseNotesUtil.csproj | 1 +
+ 13 files changed, 9 insertions(+), 28 deletions(-)
+
+diff --git a/eng/Versions.props b/eng/Versions.props
+index 46d30b3bd..635f8bb5c 100644
+--- a/eng/Versions.props
++++ b/eng/Versions.props
+@@ -1,18 +1,4 @@
+
+-
+-
+-
+- $(SystemCollectionsImmutableVersion)
+- 5.0.0
+- $(SystemReflectionMetadataVersion)
+- 5.0.0
+- $(MicrosoftCodeAnalysisVersion)
+- 3.8.0
+-
+
+ 3.3.3
+ beta1
+diff --git a/src/Directory.Build.targets b/src/Directory.Build.targets
+index c7c28fd9f..e5be9e028 100644
+--- a/src/Directory.Build.targets
++++ b/src/Directory.Build.targets
+@@ -35,8 +35,9 @@
+ AnalyzerReleases\$(AssemblyName)\AnalyzerReleases.Shipped.md
+
+
+-
+-
++
++
++
+
+
+
+diff --git a/src/Microsoft.CodeAnalysis.Analyzers/Core/MetaAnalyzers/Fixers/PreferIsKindFix.cs b/src/Microsoft.CodeAnalysis.Analyzers/Core/MetaAnalyzers/Fixers/PreferIsKindFix.cs
+index 7a6877e0e..a0cbd06e7 100644
+--- a/src/Microsoft.CodeAnalysis.Analyzers/Core/MetaAnalyzers/Fixers/PreferIsKindFix.cs
++++ b/src/Microsoft.CodeAnalysis.Analyzers/Core/MetaAnalyzers/Fixers/PreferIsKindFix.cs
+@@ -48,7 +48,7 @@ private async Task ConvertKindToIsKindAsync(Document document, TextSpa
+
+ protected abstract void FixDiagnostic(DocumentEditor editor, SyntaxNode nodeToFix);
+
+- private sealed class CustomFixAllProvider : DocumentBasedFixAllProvider
++ private sealed class CustomFixAllProvider : Analyzer.Utilities.DocumentBasedFixAllProvider
+ {
+ private readonly PreferIsKindFix _fixer;
+
+diff --git a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp.csproj b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp.csproj
+index 114e30a43..e38f8549f 100644
+--- a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp.csproj
++++ b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp/Microsoft.CodeAnalysis.ResxSourceGenerator.CSharp.csproj
+@@ -7,7 +7,6 @@
+
+
+ *$(MSBuildProjectFile)*
+- 3.9.0
+
+
+
+diff --git a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic.csproj b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic.csproj
+index a44df8a50..cba084cd5 100644
+--- a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic.csproj
++++ b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic/Microsoft.CodeAnalysis.ResxSourceGenerator.VisualBasic.csproj
+@@ -7,7 +7,6 @@
+
+
+ *$(MSBuildProjectFile)*
+- 3.9.0
+
+
+
+diff --git a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.csproj b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.csproj
+index 46a4fca6b..c9fa15584 100644
+--- a/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.csproj
++++ b/src/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator/Microsoft.CodeAnalysis.ResxSourceGenerator.csproj
+@@ -7,7 +7,6 @@
+
+
+ *$(MSBuildProjectFile)*
+- 3.9.0
+
+
+
+diff --git a/src/NetAnalyzers/Core/Microsoft.CodeQuality.Analyzers/ApiDesignGuidelines/DoNotDirectlyAwaitATask.Fixer.cs b/src/NetAnalyzers/Core/Microsoft.CodeQuality.Analyzers/ApiDesignGuidelines/DoNotDirectlyAwaitATask.Fixer.cs
+index 738fdebf2..6d13947ce 100644
+--- a/src/NetAnalyzers/Core/Microsoft.CodeQuality.Analyzers/ApiDesignGuidelines/DoNotDirectlyAwaitATask.Fixer.cs
++++ b/src/NetAnalyzers/Core/Microsoft.CodeQuality.Analyzers/ApiDesignGuidelines/DoNotDirectlyAwaitATask.Fixer.cs
+@@ -82,7 +82,7 @@ private class MyCodeAction : DocumentChangeAction
+ }
+ }
+
+- private sealed class CustomFixAllProvider : DocumentBasedFixAllProvider
++ private sealed class CustomFixAllProvider : Analyzer.Utilities.DocumentBasedFixAllProvider
+ {
+ public static readonly CustomFixAllProvider Instance = new();
+
+diff --git a/src/Roslyn.Diagnostics.Analyzers/CSharp/Roslyn.Diagnostics.CSharp.Analyzers.csproj b/src/Roslyn.Diagnostics.Analyzers/CSharp/Roslyn.Diagnostics.CSharp.Analyzers.csproj
+index e62266894..b858d7097 100644
+--- a/src/Roslyn.Diagnostics.Analyzers/CSharp/Roslyn.Diagnostics.CSharp.Analyzers.csproj
++++ b/src/Roslyn.Diagnostics.Analyzers/CSharp/Roslyn.Diagnostics.CSharp.Analyzers.csproj
+@@ -10,7 +10,7 @@
+
+
+
+-
++
+
+
+
+\ No newline at end of file
+diff --git a/src/Roslyn.Diagnostics.Analyzers/Core/Roslyn.Diagnostics.Analyzers.csproj b/src/Roslyn.Diagnostics.Analyzers/Core/Roslyn.Diagnostics.Analyzers.csproj
+index 60450aee0..3489028d4 100644
+--- a/src/Roslyn.Diagnostics.Analyzers/Core/Roslyn.Diagnostics.Analyzers.csproj
++++ b/src/Roslyn.Diagnostics.Analyzers/Core/Roslyn.Diagnostics.Analyzers.csproj
+@@ -7,7 +7,6 @@
+ Restore would conclude that there is a cyclic dependency between us and the Roslyn.Diagnostics.Analyzers package.
+ -->
+ *$(MSBuildProjectFile)*
+- $(MicrosoftCodeAnalysisForRoslynDiagnosticsAnalyzersVersion)
+
+
+
+diff --git a/src/Roslyn.Diagnostics.Analyzers/VisualBasic/Roslyn.Diagnostics.VisualBasic.Analyzers.vbproj b/src/Roslyn.Diagnostics.Analyzers/VisualBasic/Roslyn.Diagnostics.VisualBasic.Analyzers.vbproj
+index 509a3c069..737a2cf24 100644
+--- a/src/Roslyn.Diagnostics.Analyzers/VisualBasic/Roslyn.Diagnostics.VisualBasic.Analyzers.vbproj
++++ b/src/Roslyn.Diagnostics.Analyzers/VisualBasic/Roslyn.Diagnostics.VisualBasic.Analyzers.vbproj
+@@ -7,7 +7,7 @@
+
+
+
+-
++
+
+
+
+\ No newline at end of file
+diff --git a/src/Tools/GenerateDocumentationAndConfigFiles/GenerateDocumentationAndConfigFiles.csproj b/src/Tools/GenerateDocumentationAndConfigFiles/GenerateDocumentationAndConfigFiles.csproj
+index c00a9ab5d..74f5f4d5a 100644
+--- a/src/Tools/GenerateDocumentationAndConfigFiles/GenerateDocumentationAndConfigFiles.csproj
++++ b/src/Tools/GenerateDocumentationAndConfigFiles/GenerateDocumentationAndConfigFiles.csproj
+@@ -5,7 +5,6 @@
+ true
+ false
+ true
+- $(MicrosoftCodeAnalysisForRoslynDiagnosticsAnalyzersVersion)
+
+
+
+diff --git a/src/Tools/GenerateDocumentationAndConfigFilesForBrokenRuntime/GenerateDocumentationAndConfigFilesForBrokenRuntime.csproj b/src/Tools/GenerateDocumentationAndConfigFilesForBrokenRuntime/GenerateDocumentationAndConfigFilesForBrokenRuntime.csproj
+index fa2233feb..f19ae8d4d 100644
+--- a/src/Tools/GenerateDocumentationAndConfigFilesForBrokenRuntime/GenerateDocumentationAndConfigFilesForBrokenRuntime.csproj
++++ b/src/Tools/GenerateDocumentationAndConfigFilesForBrokenRuntime/GenerateDocumentationAndConfigFilesForBrokenRuntime.csproj
+@@ -12,8 +12,6 @@
+
+
+
+-
+-
+-
++
+
+
+diff --git a/src/Tools/ReleaseNotesUtil/ReleaseNotesUtil.csproj b/src/Tools/ReleaseNotesUtil/ReleaseNotesUtil.csproj
+index fe90e93ca..01b64e055 100644
+--- a/src/Tools/ReleaseNotesUtil/ReleaseNotesUtil.csproj
++++ b/src/Tools/ReleaseNotesUtil/ReleaseNotesUtil.csproj
+@@ -3,6 +3,7 @@
+ Exe
+ netcoreapp3.1
+ true
++ true
+
+
+