runtime
https://github.com/dotnet/runtime
C#
.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
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Help out
- Issues
- Preserve information necessary to validate otherwise unused interface constraints in MakeGeneric
- [JIT / Dynamic PGO] Silent data loss / premature termination in OpenXmlReader iterator under .NET 10 Release with Tiered PGO
- [API Proposal] Message template formatting support for DataAnnotations validation attributes
- Stop generating static restore binlogs
- Investigate additional NativeAOT static initialization and rooting size opportunities
- Fix JIT assertion for TYP_UINT constants exceeding int32_t range (#129099)
- Fix profiler nongcheap test with GC segments on 64 bit
- [Perf] Linux/arm64: 4 Regressions on 8/11/2026 9:14:21 PM +00:00
- Handle transient file system errors during active polling
- Add linked createdump support for NativeAOT executables
- Docs
- C# not yet supported