<PackageReference Include="System.ServiceModel.Primitives" Version="6.0.0-rc.23205.4" />

System.ServiceModel.Channels.MessageVersion

public sealed class MessageVersion
public static MessageVersion Default { get; }

public static MessageVersion None { get; }

public static MessageVersion Soap11 { get; }

public static MessageVersion Soap11WSAddressing10 { get; }

public static MessageVersion Soap11WSAddressingAugust2004 { get; }

public static MessageVersion Soap12 { get; }

public static MessageVersion Soap12WSAddressing10 { get; }

public static MessageVersion Soap12WSAddressingAugust2004 { get; }

public AddressingVersion Addressing { get; }

public EnvelopeVersion Envelope { get; }

public static MessageVersion CreateVersion(EnvelopeVersion envelopeVersion)

public static MessageVersion CreateVersion(EnvelopeVersion envelopeVersion, AddressingVersion addressingVersion)