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
- [Perf] Windows/x64: 3 Regressions on 6/5/2026 10:45:00 PM +00:00
- [API Proposal] DI Source Generator
- Fix null return condition in NullableConverter<T>.OnTryRead
- JIT: fix FitsIn<int32_t> assert in BitOperations.Rotate{Left,Right} const-fold
- Validate invalid base type declarations in ILVerify
- ExecutionEngineException fail-fast in GC thread-suspension / return-address hijack while root-scanning a Win32 message-pump P/Invoke frame (.NET 10.0.8, Windows, Avalonia desktop)
- [API Proposal]: Random NextDoubles(Span<double>)
- Clarify MetadataLoadContext load wording
- JIT: extend ccmp combining and fold redundant null-check for isinst / GetType chains
- Add HybridCache.GetOrCreateAsync overloads for dynamic setting of options
- Docs
- C# not yet supported