runtime
https://github.com/dotnet/runtime
C#
.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
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- Issues
- Fix PGO instrumentation for libcoreclr.so static libraries
- [ci-scan] Test failure: HostTests on iossimulator - Castle.DynamicProxy IndexOutOfRangeException
- Configuration Binding Generator produces non-compiling code for required property in child classes
- Test failure: System.Security.Cryptography.X509Certificates.Tests.CollectionTests.X509Certificate2CollectionRemoveRangeArray
- Blazor WebAssembly debugger: `decode_ptr_id` assertion at startup, BPs solid-red but never hit — VS2026 18.6.0 + dn10 SDK 10.0.300 (similar to #121738 which is reportedly fixed)
- [Perf] Windows/x64: 1 Regression on 5/12/2026 2:18:49 PM +00:00
- PerfMap / CodeFragmentHeap lock-ordering deadlock during GC suspension
- JIT: don't propagate promoted struct LCL_VAR into FIELD_LIST uses
- [Process] Start process as non-elevated user
- Log a message when the content root directory is likely wrong
- Docs
- C# not yet supported