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VS2026 + .NET 10 broke SvcUtil System.ObjectModel / ObservableCollection

Status: Open.

#5869 In dotnet/wcf;

· Montago opened on Nov 28, 2025

Since v10.0.652802 several types are not included

Status: Open.

#5868 In dotnet/wcf;

· ronaldcreutz-vw opened on Nov 20, 2025

WCF test targets should be revisited

Status: Open.

#5867 In dotnet/wcf;

· wfurt opened on Nov 17, 2025

dotnet-svcutil generates invalid IL code if the web service method has an optional parameter

Status: Open.

#5862 In dotnet/wcf;

· slepmog opened on Oct 28, 2025

Exception SFxCallbackRequestReplyInOrder1 in System.ServiceModel.Channels.ServiceChannel when using ConcurrencyMode.Multiple

Status: Open.

#5861 In dotnet/wcf;

· fedotovrr opened on Oct 28, 2025

.Net client generate DataContract cache overflow exception when return type is nullable ValueTuple

Status: Open.

#5833 In dotnet/wcf;

· Diesel1017 opened on Sep 8, 2025

WCF Client Throws WebSocketException when the Service Abruptly Closes the Handshake

Status: Open.

#5819 In dotnet/wcf;

· afifi-ins opened on Aug 15, 2025

Tracking CoreWCF Issue 1643 - Linux WebSocket bug in Close method

Status: Open.

#5818 In dotnet/wcf;

· afifi-ins opened on Aug 15, 2025

Suboptimal ReaderWriterLockSlim usage in TypedHeaderManager

Status: Open.

#5811 In dotnet/wcf;

· KalleOlaviNiemitalo opened on Aug 1, 2025

Primitives nuget library reports missing properties

Status: Open.

#5808 In dotnet/wcf;

· BryanAldrich opened on Jul 11, 2025

ServiceChannel gets stuck in failed Open state when attempting to auto close

Status: Open.

#5803 In dotnet/wcf;

· Alexx999 opened on Jun 30, 2025

The svcutil tool fails when referencing an IXmlSerializable type that uses the XmlSchemaProviderAttribute

Status: Open.

#5792 In dotnet/wcf;

· heatonmatthew opened on Jun 6, 2025