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
- DateOnly/TimeOnly support for XElement
- AsAnyMarshaler LayoutImplementation.ConvertToNative leaks native memory on exception
- Add SHA3 and SVE SHA3 APIs
- Time zone "GMT Standard Time" is incorrectly interpreted on Android
- [Test Failure] WinHTTP: PlatformHandlerTest_Cookies_Http2.GetAsync_ReceiveSetCookieHeader_CookieAdded
- [Perf] Linux/x64: 5 Regressions on 4/12/2026 2:20:28 AM +00:00
- Don't use callbacks when performing sync IO with async handles
- [iOS] Mono IL trimmer incorrectly evaluates RuntimeInformation.IsOSPlatform during aggressive trimming
- IIS in-process hosting returns HTTP 500 after runtime-async enablement
- JIT: Unify to instParamLookup and improve GVM test coverage
- Docs
- C# not yet supported