Hot Reload fails with C# extension version 2.90.60 #8670
Description
Environment data
VS Code version: 1.104.2
C# Extension version: 2.90.60
C# Dev Kit Extension version: 1.50.51
dotnet --info:
.NET SDK:
Version: 9.0.305
Commit: 3fc74f3529
Workload version: 9.0.300-manifests.6fcb754b
MSBuild version: 17.14.21+8929ca9e3
Runtime Environment:
OS Name: Windows
OS Version: 10.0.26100
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\9.0.305\
Hot Reload logs
Hot reload fails with the following error with C# extension version 2.90.60. If I revert the C# extension to version 2.87.31 (the previous release), it works fine.
2025-10-01 07:32:17.270 [info] 💡 Possible code changes were found.
2025-10-01 07:32:18.138 [info] ApplyChangesAsync called.
2025-10-01 07:32:18.213 [info] Checking for code updates...
2025-10-01 07:32:18.334 [info] Exception thrown for Check for code updates: 0x80004001 - The method or operation is not implemented.
2025-10-01 07:32:18.334 [info] ❌ Hot Reload failed due to an unexpected error.
2025-10-01 07:32:18.335 [info] Stack trace for System.NotImplementedException:
at Microsoft.CodeAnalysis.EditAndContinue.ManagedHotReloadLanguageServiceBridge.GetUpdatesAsync(ImmutableArray`1 runningProjects, CancellationToken cancellationToken)
at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object obj, Span`1 copyOfArgs, BindingFlags invokeAttr)
2025-10-01 07:32:18.336 [info] An unexpected error has occurred, any pending updates have been discarded.
2025-10-01 07:32:18.378 [info] Exception found while applying code changes: Error: The method or operation is not implemented.