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Limit extended flag usage to NET and CLR4 runtimes #13080

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Merged
YuliiaKovalova merged 4 commits into from
Jan 21, 2026
Merged

Limit extended flag usage to NET and CLR4 runtimes #13080

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bc16f9e
Update TryCreateExtendedHeaderType to check multiple flags
YuliiaKovalova Jan 21, 2026
3426d99
Clarify extended header support conditions
YuliiaKovalova Jan 21, 2026
ea441f6
Update src/Shared/INodePacket.cs
YuliiaKovalova Jan 21, 2026
9a21791
fix the comment
YuliiaKovalova Jan 21, 2026
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4 changes: 3 additions & 1 deletion src/Shared/INodePacket.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -329,7 +329,9 @@ internal static class NodePacketTypeExtensions
/// <returns>True if extended header flag was set, false otherwise.</returns>
public static bool TryCreateExtendedHeaderType(HandshakeOptions handshakeOptions, NodePacketType type, out byte extendedheader)
{
if (Handshake.IsHandshakeOptionEnabled(handshakeOptions, HandshakeOptions.TaskHost))
// Extended headers are supported by all task hosts except CLR2.
if (Handshake.IsHandshakeOptionEnabled(handshakeOptions, HandshakeOptions.TaskHost)
&& !Handshake.IsHandshakeOptionEnabled(handshakeOptions, HandshakeOptions.CLR2))
{
extendedheader = (byte)((byte)type | ExtendedHeaderFlag);
return true;
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