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
- [Perf] Windows/x64: 2 Regressions on 7/31/2026 4:48:31 PM +00:00
- Remove runtime Helix MSBuild parallelism override
- Guard against empty remote address on macOS accept
- [CrashReporter] Enable InProc CrashReporter for crashing GC threads
- Skip CooperativeBlockingCanCreateThreadsFaster on Debug runtimes
- [browser] Package CoreCLR browser-wasm native relink headers in the runtime pack
- Enable browser-wasm runtime tests that require native library relinking
- Fix handling of inability to get free region in thread_final_regions
- JIT: fix three wasm R2R codegen bugs
- Freeze .NET 11 data contracts
- Docs
- C# not yet supported