Merge feature branch (#7972)

Author: dibarbet

CONTRIBUTING.md

@@ -73,7 +73,7 @@ This section shows how to set up local Razor or Roslyn language servers for debu
 1. Clone the [Roslyn repository](https://github.com/dotnet/roslyn). This repository contains the Roslyn server implementation.
 2. Follow the build instructions provided in the repository.
 
-The server DLL is typically at `$roslynRepoRoot/artifacts/bin/Microsoft.CodeAnalysis.LanguageServer/Debug/net8.0/Microsoft.CodeAnalysis.LanguageServer.dll`, but this may vary based on the built configuration.
+The server DLL is typically at `$roslynRepoRoot/artifacts/bin/Microsoft.CodeAnalysis.LanguageServer/Debug/net9.0/Microsoft.CodeAnalysis.LanguageServer.dll`, but this may vary based on the built configuration.
 
 #### Razor
 
@@ -116,7 +116,7 @@ In your workspace `settings.json` file, add the following lines:
 
 ```json
 "dotnet.server.waitForDebugger": true,
-"dotnet.server.path": "<roslynRepoRoot>/artifacts/bin/Microsoft.CodeAnalysis.LanguageServer/Debug/net8.0/Microsoft.CodeAnalysis.LanguageServer.dll"
+"dotnet.server.path": "<roslynRepoRoot>/artifacts/bin/Microsoft.CodeAnalysis.LanguageServer/Debug/net9.0/Microsoft.CodeAnalysis.LanguageServer.dll"
 ```
 
 Replace <roslynRepoRoot> with the actual path to your Roslyn repository.

azure-pipelines.yml

@@ -44,7 +44,7 @@ stages:
     dotnetVersion: $(defaultDotnetVersion)
 
 - stage:
-  displayName: Test Linux (.NET 6)
+  displayName: Test Linux (.NET 8)
   dependsOn: []
   jobs:
   - template: azure-pipelines/test-matrix.yml
@@ -56,10 +56,10 @@ stages:
       pool:
         name: NetCore-Public
         demands: ImageOverride -equals 1es-ubuntu-2004-open
-      containerName: mcr.microsoft.com/dotnet/sdk:6.0
+      containerName: mcr.microsoft.com/dotnet/sdk:8.0
 
 - stage:
-  displayName: Test Linux (.NET 8)
+  displayName: Test Linux (.NET 9)
   dependsOn: []
   jobs:
   - template: azure-pipelines/test-matrix.yml
@@ -71,7 +71,7 @@ stages:
       pool:
         name: NetCore-Public
         demands: ImageOverride -equals 1es-ubuntu-2004-open
-      containerName: mcr.microsoft.com/dotnet/sdk:8.0
+      containerName: mcr.microsoft.com/dotnet/sdk:9.0
 
 - stage: Test_Windows_Stage
   displayName: Test Windows

package.json

@@ -37,7 +37,7 @@
     }
   },
   "defaults": {
-    "roslyn": "4.14.0-1.25074.7",
+    "roslyn": "4.14.0-2.25106.12",
     "omniSharp": "1.39.12",
     "razor": "9.0.0-preview.25073.1",
     "razorOmnisharp": "7.0.0-preview.23363.1",

src/lsptoolshost/dotnetRuntime/dotnetRuntimeExtensionResolver.ts

@@ -14,9 +14,9 @@ import { CSharpExtensionId } from '../../constants/csharpExtensionId';
 import { readFile } from 'fs/promises';
 import { IDotnetAcquireResult, IDotnetFindPathContext } from './dotnetRuntimeExtensionApi';
 
-const DotNetMajorVersion = '8';
+const DotNetMajorVersion = '9';
 const DotNetMinorVersion = '0';
-const DotNetPatchVersion = '10';
+const DotNetPatchVersion = '1';
 export const DotNetRuntimeVersion = `${DotNetMajorVersion}.${DotNetMinorVersion}.${DotNetPatchVersion}`;
 
 /**