Issues

• Debugger: an exception thrown during detach can suspend the runtime with no debugger attached

  area-Diagnostics-coreclruntriaged
  dotnet/runtime#136954 · Filter by author pcshrosbree opened on Nov 4, 2026
  1

• [ci-scan] Test failure: OpenSslErrorTests.GetSslLibraryReason_UsesLayoutOfLoadedOpenSsl on tvOS

  agentic-workflowsblocking-clean-ciKnown Build Erroruntriaged
  dotnet/runtime#136952 · Filter by author github-actions opened on Nov 4, 2026

• Volatile reads of a promoted struct's field lose volatile semantics when the struct is address-exposed

  area-CodeGen-coreclruntriaged
  dotnet/runtime#136936 · Filter by author NinoFloris opened on Nov 3, 2026
  1

• R2R signature formatter labels Check_VirtualFunctionOverride fixups as Verify_VirtualFunctionOverride

  area-ReadyToRununtriaged
  dotnet/runtime#136930 · Filter by author davidwrighton opened on Nov 3, 2026
  1

  

• [Proposal]: Optional native imports with AOT weak-link support

  area-System.Runtime.InteropServices
  dotnet/runtime#136923 · Filter by author rolfbjarne opened on Nov 3, 2026 · Future
  7

• .NET 10.0.14 regression on Linux ARM64: named System.Threading.Mutex fails for non-root user, works on 10.0.12

  area-System.Threadinguntriaged
  dotnet/runtime#136920 · Filter by author chrfin opened on Nov 3, 2026
  3

• [arm64][macOS] SDK dotnet test child crashes reading 0x4000 from an immediate call-target-cell address

  area-CodeGen-coreclruntriaged
  dotnet/runtime#136918 · Filter by author dsplaisted opened on Nov 3, 2026
  1

• NegotiateAuthentication on Windows ignores ExtendedProtectionPolicy.CustomChannelBinding, so a policy that requests enforcement is not enforced

  area-System.Net.Securityuntriaged
  dotnet/runtime#136914 · Filter by author earbona23 opened on Nov 3, 2026
  1

• HTTP/2 performance issues in low latency scenarios

  area-System.Threadingtenet-performanceuntriaged
  dotnet/runtime#136913 · Filter by author ezsilmar opened on Nov 3, 2026
  1

• [ci-scan] Test failure: NameConfigWithPid pipe is being closed on Windows

  agentic-workflowsarea-Infrastructureblocking-clean-ciKnown Build Erroruntriaged
  dotnet/runtime#136910 · Filter by author github-actions opened on Nov 3, 2026
  1

• [ci-scan] Test failure: NameConfigWithPid Broken pipe on macOS

  agentic-workflowsarea-System.Diagnosticsblocking-clean-ciKnown Build Erroruntriaged
  dotnet/runtime#136909 · Filter by author github-actions opened on Nov 3, 2026
  3

• [ci-scan] Test failure: Loader/classloader/TSAmbiguities/SameMethodImpl/Override/HelloWorld/HelloWorld

  agentic-workflowsarea-TypeSystem-coreclrblocking-clean-ciKnown Build Erroruntriaged
  dotnet/runtime#136908 · Filter by author github-actions opened on Nov 3, 2026

• [ci-scan] Test failure: Runtime_133715.TestEntryPoint on Mono mini full AOT

  agentic-workflowsarea-VM-meta-monoblocking-clean-ciKnown Build Erroruntriaged
  dotnet/runtime#136907 · Filter by author github-actions opened on Nov 3, 2026
  1

• [ci-scan] Test failure: System.Diagnostics.Tests.MobileProcessTests.Process_Start_WithStandardHandles_CanRedirectIO

  agentic-workflowsarea-System.Diagnostics.Processblocking-clean-ciKnown Build Erroruntriaged
  dotnet/runtime#136906 · Filter by author github-actions opened on Nov 3, 2026
  1

• [API Proposal]: Add Reflection.Emit support for aligned RVA fields.

  api-suggestionarea-System.Reflectionuntriaged
  dotnet/runtime#136903 · Filter by author teo-tsirpanis opened on Nov 3, 2026
  2

• [wasm][AOT] .NET 11 RC3: invalid LLVM IR ("PHINode should have one entry for each predecessor") for an enum local assigned in a foreach and read with ToString() after it

  area-Codegen-LLVM-monountriaged
  dotnet/runtime#136896 · Filter by author doverhill opened on Nov 3, 2026
  2

• TimeZoneInfo applies the previous year's standard offset for one hour at the 2026/2027 boundary of the new Canadian Windows time zones (Manitoba, Alberta, British Columbia); Windows API converts correctly

  area-System.DateTime
  dotnet/runtime#136894 · Filter by author njbalaguera opened on Nov 3, 2026 · Future
  8

• Test failure: CollectibleTLSStaticCollection Timed Out

  area-VM-coreclrblocking-clean-ci-optionalKnown Build Erroruntriaged
  dotnet/runtime#136891 · Filter by author VincentBu opened on Nov 3, 2026
  3

• Test failure: OutOfProcessTest.tracing/eventpipe/eventsvalidation/SampleProfilerSampleType/SampleProfilerSampleType.cmd

  area-Tracing-coreclrblocking-outerloopKnown Build Erroruntriaged
  dotnet/runtime#136889 · Filter by author VincentBu opened on Nov 3, 2026

• Test failure: global::Runtime_134477.TestEntryPoint()

  area-CodeGen-coreclrblocking-clean-ci-optionaljit-stressKnown Build Error
  dotnet/runtime#136888 · Filter by author VincentBu opened on Nov 3, 2026 · 12.0.0
  5

  

• Unboxing instantiating thunks trigger nullref when they shouldn't

  area-NativeAOT-coreclr
  dotnet/runtime#136880 · Filter by author MichalStrehovsky opened on Nov 2, 2026 · Future
  1

• ControlledExecution.Run aborts a thread only once on Linux and macOS: a second abort on the same thread never lands (Windows aborts every time)

  area-System.Threadinguntriaged
  dotnet/runtime#136873 · Filter by author wmpee opened on Nov 2, 2026
  

• [browser] Share the wasm-opt baseline feature flags with the Mono runtime CMake and Mono app relink

  arch-wasmarea-Build-monoos-browseruntriaged
  dotnet/runtime#136857 · Filter by author lewing opened on Nov 2, 2026
  1

• AV when querying custom modifiers on substituted generic types

  area-NativeAOT-coreclruntriaged
  dotnet/runtime#136848 · Filter by author NinoFloris opened on Nov 2, 2026
  1

• NullReferenceException in Imageflow BuildJobResult.From on x86 with Dynamic PGO

  area-CodeGen-coreclr
  dotnet/runtime#136844 · Filter by author b24carl opened on Nov 2, 2026
  2