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[ci-scan] Test failure: ElidedBoundsChecks Assert.Throws mismatch under R2R_CG2

agentic-workflows

blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'Blocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#129065 In dotnet/runtime;

· github-actions opened on Jun 6, 2026

[API Proposal]: Async DataAnnotations bridge for Microsoft.Extensions.Options

api-ready-for-reviewAPI is ready for review, it is NOT ready for implementationAPI is ready for review, it is NOT ready for implementation

area-System.ComponentModel.DataAnnotations

blockingMarks issues that we want to fast track in order to unblock other important workMarks issues that we want to fast track in order to unblock other important work

Status: Open.

#129056 In dotnet/runtime;

· ViveliDuCh opened on Jun 5, 2026

·  

11.0.0

JIT: extend ccmp combining and fold redundant null-check for isinst / GetType chains

arch-arm64

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMICLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

tenet-performancePerformance related issuePerformance related issue

Status: Open.

#129055 In dotnet/runtime;

· AndyAyersMS opened on Jun 5, 2026

·  

11.0.0

arm64 JIT: ins_Move_Extend emits unnecessary sxtw for TYP_INT reg-reg moves

arch-arm64

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMICLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

tenet-performancePerformance related issuePerformance related issue

Status: Open.

#129052 In dotnet/runtime;

· AndyAyersMS opened on Jun 5, 2026

·  

11.0.0

[ci-scan] Test failure: SystemCoreLibDirectory crashes in R2R_Composite (crossgen2 outerloop)

agentic-workflows

area-ReadyToRun

blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'Blocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#129046 In dotnet/runtime;

· github-actions opened on Jun 5, 2026

[ci-scan] Test failure: TensorPrimitives.SpanDestinationFunctions_ValueRange (Tan) on iossimulator

agentic-workflows

area-System.Numerics.Tensors

blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'Blocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

os-iosApple iOSApple iOS

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#129045 In dotnet/runtime;

· github-actions opened on Jun 5, 2026

Suspicious code fragments

area-NativeAOT-coreclr

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#129042 In dotnet/runtime;

· NikiPn opened on Jun 5, 2026

[API Proposal]: Add STJ support for closed hierarchies

api-ready-for-reviewAPI is ready for review, it is NOT ready for implementationAPI is ready for review, it is NOT ready for implementation

area-System.Text.Json

Status: Open.

#129041 In dotnet/runtime;

· eiriktsarpalis opened on Jun 5, 2026

·  

11.0.0

Building a C# AppHost fails within a devcontainer, blocking xUnit v3 test projects

area-Host

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#129040 In dotnet/runtime;

· hansmbakker opened on Jun 5, 2026

HttpClient / ZstandardStream silently truncates multi-frame zstd responses to the first frame (.NET 11 preview 4)

area-System.IO.Compression

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#129038 In dotnet/runtime;

· christosk92 opened on Jun 5, 2026

Revisit RetryAfter behavior in TokenBucketRateLimiter and SlidingWindowRateLimiter

area-System.Threading

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#129036 In dotnet/runtime;

· asbjornvad opened on Jun 5, 2026

CI build failure: error CS8032: An instance of analyzer Microsoft.NetCore.CSharp.Analyzers.... cannot be created

area-Infrastructure

blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'Blocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

Status: Open.

#129031 In dotnet/runtime;

· jkotas opened on Jun 5, 2026