[QUIC] Consume manually built MsQuic package for OSX

[ManickaP]

cc @liveans

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[ManickaP]

This didn't work:

MsQuic not supported and using 'unknown' .
  Finished:    System.Net.Quic.Functional.Tests
=== TEST EXECUTION SUMMARY ===
   System.Net.Quic.Functional.Tests  Total: 3, Errors: 0, Failed: 0, Skipped: 0, Time: 0.430s

https://helixr1107v0xdeko0k025g8.blob.core.windows.net/dotnet-runtime-refs-pull-119273-merge-a6f9cd7cc4be494e96/System.Net.Quic.Functional.Tests/1/console.7c999cf3.log?helixlogtype=result

[liveans]

This didn't work:

MsQuic not supported and using 'unknown' .
  Finished:    System.Net.Quic.Functional.Tests
=== TEST EXECUTION SUMMARY ===
   System.Net.Quic.Functional.Tests  Total: 3, Errors: 0, Failed: 0, Skipped: 0, Time: 0.430s

https://helixr1107v0xdeko0k025g8.blob.core.windows.net/dotnet-runtime-refs-pull-119273-merge-a6f9cd7cc4be494e96/System.Net.Quic.Functional.Tests/1/console.7c999cf3.log?helixlogtype=result

I'll look at this to figure out what's needed for the package to be installed.

[ManickaP]

This seems to be working: https://helixr1107v0xdeko0k025g8.blob.core.windows.net/dotnet-runtime-refs-pull-119273-merge-eeece5df5bbc4ba993/System.Net.Quic.Functional.Tests/1/console.15f7eccb.log?helixlogtype=result

Discovering: System.Net.Quic.Functional.Tests (method display = ClassAndMethod, method display options = None)
  Discovered:  System.Net.Quic.Functional.Tests (found 138 of 153 test cases)
  Starting:    System.Net.Quic.Functional.Tests (parallel test collections = on [12 threads], stop on fail = off)
MsQuic supported and using 'libmsquic.dylib 2.5.5.0 (b3945bb0c9e44463c93dac13e40975a7c3a526ca)' (OpenSSL).
    System.Net.Quic.Tests.MsQuicPlatformDetectionTests.UnsupportedPlatforms_ThrowsPlatformNotSupportedException [SKIP]
      Condition(s) not met: "IsQuicUnsupported"
MsQuic Counters:
    CONN_CREATED 1608
    CONN_HANDSHAKE_FAIL 25
    CONN_APP_REJECT 8
    CONN_LOAD_REJECT 0

Unobserved exceptions of 0 different types: 

  Finished:    System.Net.Quic.Functional.Tests
=== TEST EXECUTION SUMMARY ===
   System.Net.Quic.Functional.Tests  Total: 428, Errors: 0, Failed: 0, Skipped: 1, Time: 119.672s

But there's a problem with AOT build, hopefully addressed in: liveans/msquic-nuget#1

[Copilot]

Pull Request Overview

This PR removes the dual package consumption system for MsQuic on Windows and macOS, simplifying the package management by using dedicated packages for each platform. It eliminates the transport package option previously used for testing pre-released versions and instead uses the official Microsoft.Native.Quic.MsQuic.Schannel package for Windows and the manually built MsQuic.Native package for macOS.

• Removes UseQuicTransportPackage property and all transport package references
• Updates macOS to use MsQuic.Native version 2.5.6 instead of the transport package
• Updates documentation to reflect current build processes and removes obsolete transport package information

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/libraries/System.Net.Quic/src/System.Net.Quic.csproj	Removes transport package logic and updates macOS to use MsQuic.Native package
src/libraries/System.Net.Quic/readme.md	Updates documentation with current Linux build process and removes Windows transport package references
eng/Versions.props	Removes unused SystemNetMsQuicTransportVersion property

[ManickaP]

It works, see:

• https://helixr1107v0xdeko0k025g8.blob.core.windows.net/dotnet-runtime-refs-pull-119273-merge-dd7a04bb1d994d06ba/System.Net.Quic.Functional.Tests/1/console.99c71311.log?helixlogtype=result
• https://helixr1107v0xdeko0k025g8.blob.core.windows.net/dotnet-runtime-refs-pull-119273-merge-8d8e0a55256e4826ad/System.Net.Quic.Functional.Tests/1/console.32eea38d.log?helixlogtype=result
• https://helixr1107v0xdeko0k025g8.blob.core.windows.net/dotnet-runtime-refs-pull-119273-merge-7e788e6c68a74a629d/System.Net.Quic.Functional.Tests/1/console.1a07dfd9.log?helixlogtype=result

E.g.:

Console log: 'System.Net.Quic.Functional.Tests' from job dd7a04bb-1d99-4d06-ba88-17df5c17307e workitem 8fe74b08-d6cd-4bde-9c24-9119f5b7413a (osx.1200.amd64.open) executed on machine dci-mac-build-130 running macOS-12.7.2
...
/private/tmp/helix/working/B77B09A6/w/B8B809B0/e /private/tmp/helix/working/B77B09A6/w/B8B809B0/e
  Discovering: System.Net.Quic.Functional.Tests (method display = ClassAndMethod, method display options = None)
  Discovered:  System.Net.Quic.Functional.Tests (found 138 of 153 test cases)
  Starting:    System.Net.Quic.Functional.Tests (parallel test collections = on [4 threads], stop on fail = off)
MsQuic supported and using 'libmsquic.dylib 2.5.5.0 (b3945bb0c9e44463c93dac13e40975a7c3a526ca)' (OpenSSL).
    System.Net.Quic.Tests.MsQuicPlatformDetectionTests.UnsupportedPlatforms_ThrowsPlatformNotSupportedException [SKIP]
      Condition(s) not met: "IsQuicUnsupported"
MsQuic Counters:
    CONN_CREATED 1608
    CONN_HANDSHAKE_FAIL 25
    CONN_APP_REJECT 8
    CONN_LOAD_REJECT 0

Unobserved exceptions of 0 different types: 

  Finished:    System.Net.Quic.Functional.Tests
=== TEST EXECUTION SUMMARY ===
   System.Net.Quic.Functional.Tests  Total: 428, Errors: 0, Failed: 0, Skipped: 1, Time: 134.143s
/private/tmp/helix/working/B77B09A6/w/B8B809B0/e
----- end Fri Sep 5 10:07:44 EDT 2025 ----- exit code 0 ----------------------------------------------------------

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[liveans]

Nice!