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
- Move remaining managed type system APIs to use UTF8
- [browser][coreCLR] do not include `System.Runtime.InteropServices.JavaScript.dll` in `coreAssembly` of boot config
- Buffered FileStream incorrectly reads past end of FileStream, causing IOException on raw disk device streams.
- Stack traces with async variants
- [API Proposal]: More Vector<T> sequence and lane APIs
- System.Net.Http.HttpIOException: The response ended prematurely
- [Perf] Linux/x64: 7 Regressions on 12/11/2025 12:41:46 PM +00:00
- Hot reload error: `System.AggregateException: One or more errors occurred. (Format of the executable (.exe) or library (.dll) is invalid.)`
- [API Proposal]: Add RemoveWhere to all relevant collections
- [API Proposal]: Expose functions for actually performant MemoryMappedFile byte copies
- Docs
- C# not yet supported