Backport macOS 26 Tahoe test fixes to release/8.0-staging #119717
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Pull Request Overview
This PR backports test fixes for macOS 26 Tahoe to the release/8.0-staging branch. The changes address test failures that were occurring specifically on macOS 26 RC by updating platform detection logic and adjusting test expectations to accommodate behavioral changes in the newer macOS version.
Key changes:
- Adds detection for Apple platforms version 26 or later
- Updates X509 certificate chain test logic to handle macOS 26 behavior differences
- Adjusts test assertions for certificate chain validation on the new platform
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| src/libraries/Common/tests/TestUtilities/System/PlatformDetection.Unix.cs | Adds IsApplePlatform26OrLater property for detecting macOS 26+ |
| src/libraries/System.Security.Cryptography/tests/X509Certificates/ChainTests.cs | Updates certificate chain tests to handle macOS 26 behavioral changes |
This was referenced Sep 15, 2025
Open
bartonjs
approved these changes
Sep 15, 2025
bartonjs
added
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Test-only change, applying servicing-approved under tell-mode. |
bartonjs
merged commit 1e20b7b
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dotnet:release/8.0-staging
116 of 121 checks passed
This was referenced Oct 14, 2025
Closed
Bump Microsoft.Extensions.Caching.Abstractions from 6.0.1 to 9.0.10
yscorecore/YS.Knife.Extension#21
Open
Closed
This was referenced Oct 15, 2025
Bump Microsoft.Extensions.DependencyInjection from 8.0.1 to 9.0.10
devlooped/DependencyInjection#255
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Closed
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Backport #118652
Backport #118777
Customer Impact
None, test only change.
Regression
Testing
These tests were failing against macOS 26 RC. They now pass against macOS 26 RC.
Risk
None, test only change.