Repository Issues

dotnet/runtime

.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.

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Stars
 (17,886 stars)
Forks
 (5,445 forks)
Indexed issues
 (385 indexed issues)
open beginner issues
 (368 open beginner issues)
Latest indexed
Jun 11, 2026
Last GitHub push
May 15, 2026
License
MIT License
Contributing guide
Contributing guide
Code of conduct
Code of conduct
Dominant language
C#
PR merge metrics
 (Avg merge 12d 11h) (661 merged PRs in 30d)
Beginner labels
help wantedgood first issue

Issues

368 open indexed issues

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Open
SerialPort read latency on linux
area-System.IO.Portshelp wantedin-pr

dotnet/runtime #45,635 opened Dec 5, 2020 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
3 comments0 reactions0 assignees
Open
Analyzer proposal: EventSource log argument guarding
api-suggestionarea-System.Diagnostics.Tracingcode-analyzercode-fixerfeature-requesthelp wanted

dotnet/runtime #45,215 opened Nov 25, 2020 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments0 reactions0 assignees
Open
TestPlatforms.AnyUnix includes Browser
area-Infrastructure-librarieshelp wanted

dotnet/runtime #44,226 opened Nov 3, 2020 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
15 comments0 reactions0 assignees
Open
Missing Socket APIs mega-issue
area-System.Net.Socketsenhancementhelp wanted

dotnet/runtime #43,935 opened Oct 28, 2020 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
8 comments2 reactions0 assignees
Open
API documentation debt - System.Reflection
area-System.Reflectiondocumentationhelp wantedtracking

dotnet/runtime #43,864 opened Oct 27, 2020 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments0 reactions0 assignees
Open
Optimize Half.CompareTo
area-System.Runtimehelp wantedtenet-performance

dotnet/runtime #43,117 opened Oct 6, 2020 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
4 comments0 reactions0 assignees
Open
[mono] Implement pinvoke-detach-1.cs tests on Windows
area-VM-threading-monogood first issuehelp wantedincrease-code-coverageos-windowsruntime-monotest-enhancement

dotnet/runtime #43,093 opened Oct 6, 2020 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment0 reactions0 assignees
Open
Use disjoint-set-union for `ClassLayout::AreCompatible`.
area-CodeGen-coreclrgood first issuehelp wantedoptimization

dotnet/runtime #42,801 opened Sep 28, 2020 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
6 comments0 reactions0 assignees