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
- mono interp_compute_dominance_frontier alloc 900m+ memory for 3k line method
- JIT: boxing shouldn't be removed for escaping managed references
- C# Recursive Function is Slower than Java
- Significant decrease in performance of mini dump creation between targeting .NET Framework 4.6.1 and .NET 8
- NET9 and NET10 applications can crash with a 0x80000003 exception on startup
- [Perf] Linux/x64: 62 Regressions on 1/6/2026 2:06:33 PM +00:00
- Use dispatch helper for calling interface methods
- .NET 10.0.2 single‑file ARM64 apps crash with SIGILL on Raspberry Pi 3B+ unless COMPlus optimizations are disabled
- Using Apple Network Framework and WebSockets
- [API proposal] Add optimized SortedArray [renamed to BinarySortedList] (I can't create own tools with high performance)
- Docs
- C# not yet supported