[0.80-stable] Upgrade dotnet (#15152)

sharath2727 · jonthysell · web-flow · commit 853633ac26bf · 2025-09-22T20:41:52.000+05:30
* upgrade dotnet

* Change files

* Enable logging

* fix error

* updated images to rnw-img-test

* Add DotNetCoreVersion 8.0.413 to JSON config

* use node18 img

* Remove verbosity

---------

Co-authored-by: Jon Thysell &lt;thysell@gmail.com&gt;
diff --git a/.ado/image/rnw-img-vs2022-node18.json b/.ado/image/rnw-img-vs2022-node18.json
@@ -61,6 +61,12 @@
             "parameters": {
                 "DotNetCoreVersion": "6.0.403"
             }
-        }
+        },
+        {
+            "name": "windows-dotnetcore-sdk",
+            "parameters": {
+                "DotNetCoreVersion": "8.0.413"
+            }
+        },
     ]
 }
diff --git a/change/@react-native-windows-cli-1c6276ab-f9ff-44db-b4be-988530f508b7.json b/change/@react-native-windows-cli-1c6276ab-f9ff-44db-b4be-988530f508b7.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "upgrade dotnet",
+  "packageName": "@react-native-windows/cli",
+  "email": "10109130+sharath2727@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}
diff --git a/change/react-native-windows-666202fa-480c-48a5-b923-3deee28dede0.json b/change/react-native-windows-666202fa-480c-48a5-b923-3deee28dede0.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "upgrade dotnet",
+  "packageName": "react-native-windows",
+  "email": "10109130+sharath2727@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}
diff --git a/packages/@react-native-windows/cli/src/commands/healthCheck/healthCheckList.ts b/packages/@react-native-windows/cli/src/commands/healthCheck/healthCheckList.ts
@@ -14,5 +14,5 @@ export const HealthCheckList = [
   [true, 'VSUWP', 'Visual Studio 2022 (>= 17.11.0) & req. components'],
   [true, 'Node', 'Node.js (LTS, >= 18.18)'],
   [true, 'Yarn', 'Yarn'],
-  [true, 'DotNetCore', '.NET SDK (LTS, = 6.0)'],
+  [true, 'DotNetCore', '.NET SDK (LTS, = 8.0)'],
 ];
diff --git a/vnext/Microsoft.ReactNative.Managed.CodeGen.UnitTests/Microsoft.ReactNative.Managed.CodeGen.UnitTests.csproj b/vnext/Microsoft.ReactNative.Managed.CodeGen.UnitTests/Microsoft.ReactNative.Managed.CodeGen.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <PlatformTarget>x64</PlatformTarget>
     <RuntimeIdentifiers>win-x64</RuntimeIdentifiers>
     <IsPackable>false</IsPackable>
diff --git a/vnext/Microsoft.ReactNative.Managed.CodeGen.UnitTests/packages.lock.json b/vnext/Microsoft.ReactNative.Managed.CodeGen.UnitTests/packages.lock.json
@@ -1,7 +1,7 @@
 {
   "version": 1,
   "dependencies": {
-    "net6.0": {
+    "net8.0": {
       "coverlet.collector": {
         "type": "Direct",
         "requested": "[3.1.2, )",
@@ -1610,7 +1610,7 @@
         }
       }
     },
-    "net6.0/win-x64": {
+    "net8.0/win-x64": {
       "Microsoft.Win32.Primitives": {
         "type": "Transitive",
         "resolved": "4.3.0",
diff --git a/vnext/Microsoft.ReactNative.Managed.CodeGen/Microsoft.ReactNative.Managed.CodeGen.csproj b/vnext/Microsoft.ReactNative.Managed.CodeGen/Microsoft.ReactNative.Managed.CodeGen.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
 
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Platforms>x64;x86;ARM64</Platforms>
     <RuntimeIdentifiers>win-x86;win-x64</RuntimeIdentifiers>
 
diff --git a/vnext/Microsoft.ReactNative.Managed.CodeGen/Properties/PublishProfiles/DeployAsTool-Debug.pubxml b/vnext/Microsoft.ReactNative.Managed.CodeGen/Properties/PublishProfiles/DeployAsTool-Debug.pubxml
@@ -6,7 +6,7 @@
     <PublishProtocol>FileSystem</PublishProtocol>
     <Configuration>Debug</Configuration>
     <Platform>x64</Platform>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <PublishDir>$(OutDir)publish</PublishDir>
     <RuntimeIdentifier>win-x64</RuntimeIdentifier>
     <SelfContained>true</SelfContained>
diff --git a/vnext/Microsoft.ReactNative.Managed.CodeGen/Properties/PublishProfiles/DeployAsTool-Release.pubxml b/vnext/Microsoft.ReactNative.Managed.CodeGen/Properties/PublishProfiles/DeployAsTool-Release.pubxml
@@ -6,7 +6,7 @@
     <PublishProtocol>FileSystem</PublishProtocol>
     <Configuration>Release</Configuration>
     <Platform>x64</Platform>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <PublishDir>$(OutDir)publish</PublishDir>
     <RuntimeIdentifier>win-x64</RuntimeIdentifier>
     <SelfContained>true</SelfContained>
diff --git a/vnext/Microsoft.ReactNative.Managed.CodeGen/packages.lock.json b/vnext/Microsoft.ReactNative.Managed.CodeGen/packages.lock.json
@@ -1,7 +1,7 @@
 {
   "version": 1,
   "dependencies": {
-    "net6.0": {
+    "net8.0": {
       "Humanizer": {
         "type": "Direct",
         "requested": "[2.14.1, )",
@@ -1507,7 +1507,7 @@
         }
       }
     },
-    "net6.0/win-x64": {
+    "net8.0/win-x64": {
       "Microsoft.Win32.Primitives": {
         "type": "Transitive",
         "resolved": "4.3.0",
@@ -2350,7 +2350,7 @@
         }
       }
     },
-    "net6.0/win-x86": {
+    "net8.0/win-x86": {
       "Microsoft.Win32.Primitives": {
         "type": "Transitive",
         "resolved": "4.3.0",
diff --git a/vnext/Scripts/rnw-dependencies.ps1 b/vnext/Scripts/rnw-dependencies.ps1
@@ -1,4 +1,3 @@
-
 # Troubleshoot RNW dependencies
 param(
     [switch]$Install = $false,
@@ -88,9 +87,9 @@ $wingetver = "1.7.11261";
 $vsver = "17.11.0";
 
 # The exact .NET SDK version to check for
-$dotnetver = "6.0";
+$dotnetver = "8.0";
 # Version name of the winget package
-$wingetDotNetVer = "6";
+$wingetDotNetVer = "8";
 
 $v = [System.Environment]::OSVersion.Version;
 if ($env:Agent_BuildDirectory) {
diff --git a/vnext/fmt/packages.lock.json b/vnext/fmt/packages.lock.json

Original file line number	Diff line number	Diff line change
`@@ -61,6 +61,12 @@`
`61`	`61`	`"parameters": {`
`62`	`62`	`"DotNetCoreVersion": "6.0.403"`
`63`	`63`	`}`
`64`		`- }`
	`64`	`+ },`
	`65`	`+ {`
	`66`	`+ "name": "windows-dotnetcore-sdk",`
	`67`	`+ "parameters": {`
	`68`	`+ "DotNetCoreVersion": "8.0.413"`
	`69`	`+ }`
	`70`	`+ },`
`65`	`71`	`]`
`66`	`72`	`}`
Original file line number	Diff line number	Diff line change
`@@ -1,7 +1,7 @@`
`1`	`1`	`{`
`2`	`2`	`"version": 1,`
`3`	`3`	`"dependencies": {`
`4`		`- "net6.0": {`
	`4`	`+ "net8.0": {`
`5`	`5`	`"coverlet.collector": {`
`6`	`6`	`"type": "Direct",`
`7`	`7`	`"requested": "[3.1.2, )",`
`@@ -1610,7 +1610,7 @@`
`1610`	`1610`	`}`
`1611`	`1611`	`}`
`1612`	`1612`	`},`
`1613`		`- "net6.0/win-x64": {`
	`1613`	`+ "net8.0/win-x64": {`
`1614`	`1614`	`"Microsoft.Win32.Primitives": {`
`1615`	`1615`	`"type": "Transitive",`
`1616`	`1616`	`"resolved": "4.3.0",`