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
- [Perf] Linux/arm64: 13 Regressions on 6/2/2026 9:01:20 PM +00:00
- [API Proposal]: APIs to drive a method's tiered-compilation promotion to its final tier
- [API Proposal]: IsClosedTypeAttribute: add DerivedTypes property
- Call into PerfMap logic exclusively in preemptive mode
- Async profiler: V1 (TaskAsync) instrumentation + tests.
- Fix ILVerify ReturnPtrToStack for by-value ref struct returns
- Arm64: [PAC-RET] NativeAOT changes
- Escape quotes and backslashes in MailAddress display name when encoding SMTP headers
- Prevent corrupted SMTP headers when MailAddress.DisplayName contains CR/LF
- Validate ContentType.Name and ContentDisposition.FileName against header injection
- Docs
- C# not yet supported