microsoft
diff --git a/‎change/react-native-windows-d5d76e5c-a66f-4cb5-8f7e-db044ea02c7d.json
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+7Lines changed: 7 additions & 0 deletions b/‎change/react-native-windows-d5d76e5c-a66f-4cb5-8f7e-db044ea02c7d.json
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+7Lines changed: 7 additions & 0 deletions
diff --git a/‎packages/playground/windows/playground-win32/Playground-win32.vcxproj
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-1Lines changed: 0 additions & 1 deletion b/‎packages/playground/windows/playground-win32/Playground-win32.vcxproj
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-1Lines changed: 0 additions & 1 deletion
diff --git a/‎vnext/Desktop/React.Windows.Desktop.vcxproj
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+1-1Lines changed: 1 addition & 1 deletion b/‎vnext/Desktop/React.Windows.Desktop.vcxproj
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+1-1Lines changed: 1 addition & 1 deletion
diff --git a/‎vnext/Directory.Build.props
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+2-2Lines changed: 2 additions & 2 deletions b/‎vnext/Directory.Build.props
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+2-2Lines changed: 2 additions & 2 deletions
diff --git a/‎vnext/Folly/Folly.vcxproj.filters
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+7Lines changed: 7 additions & 0 deletions b/‎vnext/Folly/Folly.vcxproj.filters
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@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Update to C++20",
+  "packageName": "react-native-windows",
+  "email": "34109996+chiaramooney@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}
@@ -86,7 +86,6 @@
   <ItemDefinitionGroup Condition="'$(Configuration)'=='Debug'">
     <ClCompile>
       <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <LanguageStandard Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">stdcpp17</LanguageStandard>
     </ClCompile>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)'=='Release'">
 
@@ -116,7 +116,7 @@
         $(ReactNativeDir)\ReactCommon\react\renderer\graphics\platform\cxx;
         %(AdditionalIncludeDirectories);
       </AdditionalIncludeDirectories>
-      <AdditionalOptions>%(AdditionalOptions) /Zc:strictStrings /bigobj</AdditionalOptions>
+      <AdditionalOptions>%(AdditionalOptions) /Zc:strictStrings /bigobj /await</AdditionalOptions>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
       <RuntimeTypeInfo Condition="'$(Configuration)'=='Debug'">true</RuntimeTypeInfo>
 
@@ -16,8 +16,8 @@
     -->
     <EnableSourceLink Condition="'$(EnableSourceLink)' == ''">false</EnableSourceLink>
     <!-- When bumping the Folly version, be sure to bump the git hash of that version's commit and build Folly.vcxproj (to update its cgmanifest.json) too. -->
-    <FollyVersion>2023.10.16.00</FollyVersion>
-    <FollyCommitHash>3da4d3ccc4ea69bc10800754816e339d912736bd</FollyCommitHash>
+    <FollyVersion>2023.11.06.00</FollyVersion>
+    <FollyCommitHash>d62707bf4dc8c58bcc317260611b8cbe25c7f444</FollyCommitHash>
     <!-- When bumping the fmt version, be sure to bump the git hash of that version's commit and build fmt.vcxproj (to update its cgmanifest.json) too. -->
     <FmtVersion>10.1.0</FmtVersion>
     <FmtCommitHash>ca2e3685b160617d3d95fcd9e789c4e06ca88</FmtCommitHash>
 
@@ -83,6 +83,13 @@
     </ClCompile>
     <ClCompile Include="pch.cpp" />
     <ClCompile Include="$(FollyDir)\folly\system\AtFork.cpp" />
+    <ClCompile Include="$(FollyDir)\folly\SharedMutex.cpp" />
+    <ClCompile Include="$(FollyDir)\folly\concurrency\CacheLocality.cpp" />
+    <ClCompile Include="$(FollyDir)\folly\detail\Futex.cpp" />
+    <ClCompile Include="$(FollyDir)\folly\synchronization\ParkingLot.cpp" />
+    <ClCompile Include="$(FollyDir)\folly\synchronization\SanitizeThread.cpp" />
+    <ClCompile Include="$(FollyDir)\folly\portability\SysResource.cpp" />
+    <ClCompile Include="$(FollyDir)\folly\portability\Unistd.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="$(FollyDir)\folly\portability\Asm.h">